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Gorilla
                         Journal
Journal of Berggorilla & Regenwald Direkthilfe
No. 65, December 2022

Oil versus Forest       Community      As Temperatures   Distribution and
in the Congo            Reserves in    Rise, Mountain    Habitat Use of
                        a Retreating   Gorillas Get      Gorillas in the Ebo
                        Environment    Thirstier         Forest
BERGGORILLA & REGENWALD DIREKTHILFE

CONTENTS                                   Authors of this Issue                           Marieberthe Hoffmann-Falk is a
                                                                                       professional in Corporate Communica-
D. R. Congo                            3       Dr. Matti Barthel is a biogeochemist    tions. Since 2004 she has assisted in
Another Gorilla Gives Birth on Mt.         at the ETH Zürich at the Department of      media relations for Berggorilla & Re-
Tshiaberimu                            3   Environmental Systems Sciences. For         genwald Direkthilfe.
Growing Mushrooms Close to Mt.             various research projects he regularly          Dr. Jean Claude Kyungu Kasolene
Tshiaberimu                            4   participates in scientific expeditions to   headed the Tayna Gorilla Reserve and
Oil versus Forest in the Congo         4   the Democratic Republic of the Congo.       the Walikale Community Gorilla Re-
Community Reserves in a Re-                    Dr. Marijn Bauters works as a trop-     serve and was Project Manager for the
treating Environment                   5   ical ecologist and biogeochemist at         Tshiaberimu Gorilla Project for The Go-
Community Development Micro-               Ghent University, and frequently con-       rilla Organization. From 2017 to 2019,
Projects around Maiko Park             7   ducts field work in the tropical forests    he was the Director of the Itombwe Re-
Climate Change in the Congo                of South America and Africa.                serve and in 2020 became the Chief of
Basin                                  9       Chloe Chesney is a PhD student          the Maiko National Park.
GRACE Celebrates World Gorilla             at Lisbon and the University of Exeter.         Papy Kabaya Mahamudi Eus-
Day                                  10    Her research focuses on the socio-cul-      tache is coordinator and Director of
GRACE Uses Radio for Conser-               tural development of humans, the rela-      programmes at the Réserve des Go-
vation Education                     13    tionships between humans and wildlife       rilles d’Usala. Moreover, he is assistant
Gorillas                             14    and the influence of anthropogenic ac-      at the Institut Supérieur de Développe-
As Temperatures Increase,                  tivities on biodiversity.                   ment Rural at Walikale.
Mountain Gorillas get Thirstier      14        Laurie Cummins is GRACE Edu-                Honoré Kambale Masumbuko is
GORILLAS our friends FOREVER         14    cation and Community Engagement             GRACE Education Manager.
Distribution and Habitat Use of            Manager.                                        Dr. Angela Meder studied the be-
Gorillas in the Ebo Forest           15        Dr. Ekwoge Enang Abwe is a post-        haviour and development of captive
Understanding Visitors at Tourist          doctoral research fellow with San Die-      lowland gorillas for 10 years. Until her
Sites to Protect Great Apes from           go Zoo Global and manager of the Ebo        retirement she worked as a book edi-
Disease                              17    Forest Research Project in Cameroon.        tor. Since 1992 she has been part of
Reading                              19        Dr. Kimberley J. Hockings is a          the Board of Directors of Berggorilla &
Berggorilla & Regenwald                    Senior Lecturer at the University of Ex-    Regenwald Direkthilfe.
Direkthilfe                          20    eter. Her research aims to elucidate            Daniel M. Mfossa is the Clubs des
2022 Members’ Meeting                20    the underlying mechanisms that al-          Amis des Gorilles coordinator for the
                                           low human-wildlife coexistence. She's       Ebo Forest Research Project. He is
                                           a member of the IUCN/SSC Primate            currently a doctoral student at ERAIFT
                                           Specialist Group.                           – University of Kinshasa. His research
                                                                                       focuses on the ecology and conserva-
                                                                                       tion status of gorillas in the Ebo forest.
                                           Bank Account:                                   Dr. Bethan Morgan is Head of the
Gorilla Journal 65, December 2022          IBAN DE06 3625 0000 0353 3443 15            African Forest Program at San Diego
Editor: Angela Meder                       BIC SPMHDE3E                                Zoo Wildlife Alliance, Principal Investi-
Augustenstr. 122, 70197 Stuttgart,         Switzerland:                                gator of the Ebo Forest Research Pro-
Germany                                    IBAN CH90 0900 0000 4046 1685 7             ject and Honorary Research Fellow at
E-mail meder@berggorilla.org               BIC POFICHBEXXX                             the University of Stirling, UK.
Translation, editing and proofread-                                                        Dr. Ana Nuno is a Research Fel-
ing: Ann DeVoy, Bettina and Andrew         Organisation Address:                       low at the NOVA University Lisbon and
Grieser Johns, Bronwen Hodges,             Berggorilla & Regenwald Direkthilfe         Honorary Senior Lecturer at the Univer-
Carla A. Litchfield (University of South   c/o Burkhard Broecker                       sity of Exeter. Her work contributes to
Australia), Callum McCabe                  Juedenweg 3                                 advancing knowledge and implement-
Cover: Members of the Bitukura             33161 Hoevelhof, Germany                    ing best practice in biodiversity conser-
group in Bwindi National Park drink-       E-mail broecker@berggorilla.org             vation and management of natural re-
ing water                                  Website:                                    sources with a strong focus on interac-
Photo: Martha M. Robbins                   http://www.berggorilla.org                  tions between people and wildlife.

2 Gorilla Journal 65, December 2022
D. R. CONGO

    Dr. Martha Robbins, a research as-                                                    What can we learn from this death?
sociate at the Max Planck Institute for                                                   My opinion on lessons learnt may not
Evolutionary Anthropology, has been                                                       be shared by others. The birth of a
studying the behavioral ecology of go-                                                    third gorilla baby by another female
rillas since 1990. Since 1998, she has                                                    gave us further hope because it means
been studying the socioecology and re-                                                    that the Mount Tshiaberimu group has
productive strategies of mountain go-                                                     two fertile adult females. The first baby,
rillas in Bwindi Impenetrable National                                                    Hope, now a juvenile, is also female.
Park, since 2005 she has been working                                                     She increases the number of the Mount
with the gorillas in Loango.                                                              Tshiaberimu females to four. We know
    Claude Sikubwabo Kiyengo con-                                                         that the death rate among gorilla infants
ducted a gorilla survey in the Maiko Na-                                                  is 1 in 3, so the death of the latest baby
tional Park, he worked for the ICCN in                                                    gorilla is not surprising. Nonetheless,
Goma and for the IUCN. He was chief                                                       its birth gives us hope for the future of
conservator of the Parc National des                                                      a population on the brink of extinction.
Virunga, central sector, the coordinator    Ndekesiriʼs dead baby                         We are waiting with bated breath to
of the NGO VONA, the PACEBCo ex-                Photo: Katsuva Wasukundi/ICCN             determine the sex of Mwengeshali’s
pert for conservation and biodiversity                                                    latest baby. We also know that when
in the Virunga region (COMIFAC), and        time. In 2018, a baby gorilla was born        a female gorilla loses her baby, she
since 2008 he has been our assistant.       but died only a few days later. In 2019,      comes back into estrus quickly and
                                            another individual disappeared, further       may conceive again.
Another Gorilla Gives                       reducing the number of gorillas to only                    Claude Sikubwabo Kiyengo
                                            five (data from ICCN monitoring).
Birth on Mt. Tshiaberimu                       The possibility that the females were
For over a decade, there has been           infertile began to be considered. How-
little hope for the survival of the Mount   ever, during 2019, when no one really
Tshiaberimu (or Tshiabirimu) gorillas.      believed in the future survival of these
Several great ape experts considered        gorillas, the female Mwengeshali gave
these gorillas to be on the verge of        birth to a baby, who was named Espoir
becoming extinct: the population was        (Hope). The same female had anoth-
beyond the point of recovery. Monitoring    er baby in late 2021. A sense of opti-
showed that not a single gorilla was        mism started to grow again, although
born between 2009 and 2018, and the         it was still doubtful that a single fertile
number of gorillas on Mt. Tshiaberimu       female could save such a vulnerable
fell drastically from 13 to 6 during that   population. The population currently
                                            consists of seven individuals including
                                            two silverbacks, three females, and two
   The gorillas on Mt.                      youngsters. In the last Gorilla Journal,
                                            we wrote: “We hope that Mwengeshali
   Tshiaberimu                              can give birth to more babies, and that
   Katsavara family                         the other gorilla females can also be-
   Katsavara, male                          come mothers.”
   Mukokya, female                             Our wish was fulfilled. At 8 am on         Ranges of the two gorilla families
   Ndekesiri, female                        11 June 2022, trackers were present           (the Kipura family is the same as
   Espoir, juvenile female                  when Ndekesiri gave birth for the first       the Mwasa family) on Mt. Tshiabe­
                                            time. Unfortunately, the umbilical cord       rimu during the second quarter of
   Mwasa family                             did not detach quickly and became en-         2022
   Mwasa, male                              tangled with the vegetation. When the                                    Map: ICCN
   Mwengeshali, female                      female tried to untangle herself, the
   Kavango, sex not yet identified          cord was torn and the baby died as a
                                            result.

                                                                                          3 Gorilla Journal 65, December 2022
D. R. CONGO

  Growing Mushrooms in Communities Close to Mt. Tshiaberimu
   Community members near the Mt.
   Tshiaberimu, Virunga National Park,
   were trained in growing mushrooms
   (Pleurotus ostreatus). They were
   very happy with the results, and
   other communities ex­pressed their
   interest in becoming mushroom
   growers too. Donations are welcome
   to give them the op­portunity!
      This project was funded by the or-
   ganisation Cents for help (an initia-
   tive by employees and companies
   within the Bosch Group).

   The substrate for the
   mushrooms is prepared. It is
   made from leftovers of
   agriculture like dry leaves of
   beans and bananas.

Oil versus Forest in the                     ever, the funds were not directed to the    tries in the world. It would be remarka-
                                             government but rather to conservation       ble if this promise was kept – there are
Congo                                        projects via international organisations.   numerous similar cases where lead-
In April 2022, Greenpeace reported           The funds could not be used directly to     ers enrich themselves while the popu-
that the government of the Democratic        finance the work and measures of the        lation becomes ever poorer. President
Republic of the Congo planned to auc­        government – in contrast to those from      Tshisekedi also announced that the
tion off concessions for the extraction of   oil extraction.                             revenue generated from oil extraction
oil. Together with numerous other nature         At the beginning of September, Min-     would be used to fund nature conser-
conservation organisations, including        ister of Hydrocarbons for the Congo Di-     vation.
Rainforest Rescue, Greenpeace called         dier Budimbu Ntubuanga said the DRC             In 2016, the country’s oil reserves
upon the government not to go through        received two offers for the oil blocks.     were estimated at 20 billion barrels,
with this, particularly since some of            Oil extraction would have seri-         the second largest reserves on the Af-
these concessions were located inside        ous consequences for the forests and        rican continent after Nigeria. Selling the
national parks. A petition with over         swamps where most of the conces-            concessions could generate 600 mil-
100,000 signatures was handed to the         sions are located, areas that are al-       lion dollars immediately. Further, the
Congolese government on 25 July.             ready under severe pressure. In ad-         responsible minister estimates that the
    Despite this, 27 oil and 3 gas con-      dition, oil extraction would have a det-    exploitation of just two of the planned
cessions were offered in an auction          rimental effect on global climate and       concessions could procure a month-
in late July. Many conservationists          on the people living in the affected re-    ly income of one billion dollars for the
were shocked by this because Presi-          gions. However, the Congolese gov-          state. However, one opinion (https://
dent Tshisekedi had signed a commit-         ernment rejects criticism from nature       africanarguments.org/2022/08/congo-
ment during the UN Climate Change            and climate conservationists stating        oil-auction-foiling-climate-colonialism-
Conference of the Parties (COP26) in         that the primary concern of the govern-     or-filling-the-coffers/) is that the Con-
Glasgow in late 2021, promising that         ment is to develop the country and its      golese government does not actually
the DRC would promote climate pro-           economy and to lead its population out      intend to exploit the oil reserves, only
tection. Several countries had prom-         of poverty. The Democratic Republic of      to sell the rights. The announcement
ised to finance this commitment. How-        Congo is one of the five poorest coun-      of the auction may be a ploy, exerting

4 Gorilla Journal 65, December 2022
D. R. CONGO

pressure on the richer states to pro-        for the rangers to control the park – so       For more information
vide additional funds to support cli-        nobody knows how the gorillas are far-         Greenpeace Africa: https://www.greenpeace.
                                                                                            org/africa/en/explore/, report on the reaction of
mate protection and biodiversity con-        ing. The Congolese government has              the population: https://www.greenpeace.org/
servation in the DRC. Experts think that     proposed that the park should be under         static/planet4-africa-stateless/2022/09/38e7
the funds promised during the climate        the control of the military. If that were to   52f8-oil-blocks-report-english-v1.2.pdf
summit in Glasgow are not anywhere           happen, the protection of the Natural          Rainforest Rescue: https://www.rainforest-res
                                                                                            cue.org/petitions/1261/drc-do-not-sacrifice-
near enough to achieve the set goals.        World Heritage Site would no longer be         congos-rainforests-to-the-oil-industry
                                             guaranteed.                                    Rainforest Foundation UK: https://www.rainfor
The End of Virunga National Park?                                        Angela Meder       estfoundationuk.org/press-releasepetition-of-
                                                                                            100000-signatures-handed-to-drc-president-
The government of the Democratic                                                            to-stop-new-oil-development
Republic of the Congo had already                                                           Maps indicating the locations of oil concessions
granted oil concessions covering 85 %                protected area                         etc. posted by the Rainforest Foundation:
of the area of the Virunga National Park                                                    https://storymaps.arcgis.com/stories/28900d3
                                                     national border                        426fd485db15f94ea6126a477
by late 2007. (https://www.berggorilla.
org/en/gorillas/protected-areas-for-
gorillas/protected-areas-for-gorillas/
                                                              Beni                          Community Reserves in a
oil-exploration-in-virunga-park/)     The
                                                                                            Retreating Environment
                                                                                    i
                                                                                  or
                                                                                 nz

plans to drill for oil in the park caused     DEMOCRAT.                                     Can they Guarantee Healthy
                                                                               we

heated argument: WWF initiated a                                     Mutsora
                                                                     M
                                                                     Mu
                                                                             Ru

protest campaign, and a website was
                                              REP. OF                                       Ecosystems and Biodiversity?
developed for this purpose (https://          THE CONGO
                                                      GO
                                                      G
savevirunga.com).         The    company            Butembo
                                                          o                                 The natural forests in western North
SOCO carried out some exploratory                                                           Kivu province and Maniema province,
drilling but stopped work after strong        Mt. Tshiaberimu                               eastern Democratic Republic of the
international protest (including the do­                                                    Congo, are very rich in biodiversity of
cumentary “Drillers in the Mist” (https://                                                  both animal and plant species. While
virungamovie.com/), which came out                                                          the Virunga, Maiko and Kahuzi-Biega
on Netflix in 2014. However, work was                                                       national parks are under the protection
restarted in 2017 with SOCO again                                 Lake                      of ICCN (Congolese Institute for Nature
                                                                  Edward
involved, this time indirectly (https://                                                    Conservation), the organisation in
www.berggorilla.org/en/journal/issues/                                                      charge of protected areas in the DRC,
journal-55-22017/article-view/virunga-                                                      the majority of the forest outside these
park-again-threatened-by-oil/).                          Rwindi                             national parks has remained without
    Oil extraction is not permitted in a                                                    legal protection for quite some time.
UNESCO World Heritage Site. The                                                                 Between 1998 and 2004, several lo-
Congolese government has countered                                                          cal communities in forested areas, anx-
this argument by indicating that the ar-                                   UGANDA           ious to protect the biodiversity of their
eas concerned could be excised from                   Rutshuru
                                                      R
                                                      Rut
                                                      Ru                                    forests, set about creating communi-
the national park. This would be a se-           Tongo                                      ty reserves with a view to protecting
rious blow to nature conservation in                                                        their natural resources, focussing par-
eastern Congo as this goes against the                   Rumangabo                          ticularly on lowland gorillas and chim-
                                              Nyamulagira
very reason for Virunga National Park’s                     Mikeno Sector                   panzees. Over those 6 years, 9 com-
World Heritage status.                         Nyiragongo                                   munity reserves were created in these
    The park is already under strong                                                        two provinces.
pressure from the activities of various                  Goma
                                                                      RWANDA
rebel groups. For example, M23 com-          Lake Kivu
                                                                                            North Kivu
menced massive attacks in the region                                                        – Tayna Gorilla Reserve (RGT, 1998)
as recently as June. The rebels have         The Virunga National Park with the             – Bakumbule Primate Community
settled mainly in the southern part of       oil concession blocks                            Reserve (RECOPRIBA, 2001),
the park, which is where the mountain           Map: Angela Meder with information            now called Kisimba-Ikobo Primate
gorillas are. This makes it impossible          from the Rain Forest Foundation UK            Reserve (RPKI)

                                                                                            5 Gorilla Journal 65, December 2022
D. R. CONGO

Traces found in the Usala Reserve during a 20 km foot patrol                          mountains. Its altitude varies between
                                                                                      500 and 2020 m above sea level. It
 Number     Species                                                 Traces/km2
                                                                                      is located in the Usala village group-
       13 Gorilla beringei graueri (Grauer’s gorilla)                    0.65         ing in the Wanianga sector in Walikale
       23 Pan troglodytes schweinfurthii (eastern chimpanzee)            1.15         territory, North Kivu province, with the
                                                                                      River Lindi to the north, REGOUWA to
        7 Okapia johnstoni (okapi)                                       0.35
                                                                                      the south, RGT and RPKI to the east
       21 Orycteropus afer (aardvark)                                    1.05         and Maiko National Park to the west. It
       31 Hyemoschus aquaticus (fanged deer)                             12.7         has an area of 115,200 hectares. It is
       54 Potamochoerus porcus (bush pig)                                2.7          drained by several rivers with plentiful
                                                                                      fish such as the Lindi, Mandaye, Lubuli,
       65 Cephalophus dorsalis (bay duiker)                              3.25         Hunde, Bilate, Rwemo, Kiruchi, Tama-
        5 Panthera pardus (leopard)                                      0.25         ria, Roombo and Ubangire.
        8 Cercopithecus hamlyni (owl-faced monkey)                       0.4              Gorillas, chimpanzees and oth-
                                                                                      er flagship animals: The existing re-
       16 Cercopithecus l’hoesti (L’Hoest’s monkey)                      0.8
                                                                                      search on gorillas and chimpanzees
        4 Kinixys erosa (forest hinge-back tortoise)                     0.2          dates from 2014. There have been no
                                                                                      updates since then. At that time there
– Bakano Forest Reserve for Com­          receive no support, despite their           were 0.797 gorillas per km2, about 918
  munity Conservation (COCREFOBA,         activities on the ground. What they are     in the reserve, and 0.072 chimpanzees
  2002)                                   able to accomplish without support is       per km2, 83 in the reserve.
– Usala Gorilla Reserve (RGU, 2002)       far from guaranteeing the survival of the       These data do not seem very con-
– Utunda and Wassa Gorilla Reserve        great apes (gorillas and chimpanzees)       clusive, however. There could have
  (REGOUWA, 2003). In recent              and other large mammals in their areas.     been many more in the reserve. In
  years, the small reserves making           We are presenting here information       2019 a patrol team noticed high con-
  up REGOUWA have changed their           about three community reserves in ar-       centrations of these animals, although
  name to RENGYIT.                        eas which are difficult to access.          no numbers were given, only locations.
– Primates and Forests of Lowa Com­                                                   In June 2022 a team monitoring a very
  munity Reserve (RECOPRIFOL,             Usala Gorilla Reserve (RGU)                 small part of the reserve, with a foot pa-
  2003)                                   The Usala Gorilla Reserve or the            trol of 20 km:
                                          Usala Community Forest was created              Management objectives:
Maniema                                   by a team of customary chieftains and       1. to protect biodiversity, particularly
– Punia Gorilla Reserve (RGPU,            local landowners under the leadership           animal species threatened with ex­
  2002)                                   of Sultan Eric Mwaka Wa Eliba, who              tinction (gorillas, chimpanzees, etc.)
– Mukingiti and Kingombe Gorilla          became the managers.                        2. to promote rural development,
  Reserve (REGOMUKI, 2003)                   The management is on two levels –        3. to promote scientific research and
– Lubutu Gorilla Reserve (REGOLU,         the administrative council, made up             tourism,
  2004)                                   of chieftains from across the area and      4. to introduce the concept of con­
                                          forming the decision-making unit, and           servation to the local population
Since 1998, the concept of community      the co-ordination unit dealing with the         through community-based activities,
forests managed by the local population   daily activities comprising technical       5. to promote the participation of the
has spread throughout the eastern         staff.                                          local population in nature con­
provinces of the Congo, leading to the       This structure operates for the mo-          servation.
creation of these reserves. But not one   ment under the terms of Provincial Or-          Challenges:
of these nine reserves has received       der No. 016/CAB/GP-NK/2010 of 22            1. illegal activities in the reserve:
sufficient support. Those reserves        April 2010 which gives it provisional           poaching, tree-felling to expand
which are accessible because they are     authority, the act of a sympathetic na-         agri­cultural areas, gold mining and
near navigable roads have received        tional Minister of the Environment and          the search for minerals,
some support from partners and            Nature Conservation.                        2. the critical shortage of financing for
international NGOs. Those reserves           The RGU is in the equatorial zone,           the organisation of patrols, the lack
which are more difficult to access        characterised by lowlands as well as            of field equipment and infrastructure

6 Gorilla Journal 65, December 2022
D. R. CONGO

   such as housing for trackers and            voluntary surrender of 12-gauge            reserve. In an attempt to establish
   rangers,                                    shotguns,                                  complete protection, hunting, fishing,
3. funding of activities: young volun­       – monitoring gorilla groups near the         trapping and the cutting of timber was
   teers are growing and selling cas­          abandoned ranger post at Loya,             prohibited, as was traffic through the
   sava, and the money raised is used          along the Loyanje stream and in the        park. However, the Government was
   to organise sensitisation mis­ sions        Lukumwe and Ndufa hills. Numerous          never able to remove the Simba rebels,
   and monitoring of the reserve.              gorillas lived in this area between        who had lived in the park since 1964.
                                               1989 and 1993, but now only one to             Maiko National Park extends across
Kisimba-Ikobo Primate Reserve                  four individuals have been recorded        three different provinces: the south-
(RPKI)                                         there.                                     ern sector of the park is in Maniema
Like the Usala Reserve, RPKI was             – monitoring chimpanzees in the              Province, the central sector is part of
set up in 2001 by traditional chiefs           Mube and Ndonga hills.                     Tshopo Province, and the northern sec-
and local landowners, and it has the                                                      tor lies in North Kivu Province.
same objectives. It covers an area           Monitoring is conducted for only about           Hunting remains a major activity
of 200,000 hectares. A 2014 survey           45 days per year, which is not frequent      around Maiko National Park, in par-
showed a density of 0.422 gorillas and       enough. The area was not surveyed            ticular the hunting of bushmeat to sup-
0.05 chimpanzees per km2, with an            in 2014. The work done by Claude             ply the markets of Lubutu, Bafwasende
estimated total of 845 gorillas and 100      Sikubwabo and John Hart between              and Manguredjipa. Poaching of pro-
chimpanzees in the reserve.                  1989 and 1992 provided some in­              tected species is aimed at the capture
   There are two ranger stations inside      formation about flora and fauna in that      and marketing of monkeys, baby goril-
this reserve, and no villages. The re-       part of the forest. However, thirty years    las and chimpanzees.
serve also suffers from a critical lack of   later, with ongoing wars and unrest,             In 2020, the provinces of Maniema
financial support for patrols, trackers,     this information is out-of-date and may      and Tshopo launched a campaign to
and educators.                               no longer be accurate. An update is          collect hunting weapons, particular-
                                             urgently needed.                             ly 12-gauge shotguns, which are the
Loya Wandi Community Reserve                                                              main weapons produced locally. They
for Development (FLOWADE)                    To sum up, community conservation            are used predominantly for hunting, to
FLOWADE is situated to the north of          by the local population is a very good       provide income and food. The popula-
the central sector of Maiko National         initiative. The natural resources and        tion voluntarily handed in 265 of these
Park. It was set up in 2012 at Opienge.      ecosystems can be protected by local         weapons, but the people are suffering
Its mission is ‘Conservation for All by      efforts. We must support these initiatives   from food shortages and a lack of in-
All’. Its objectives are the same as for     because without appropriate funding,         come. Alternative livelihoods support
the Usala Reserve.                           especially for the less accessible sites,    was established for the people who
   The co-ordination centre is at An-        it is difficult to guarantee the long-term   handed over their weapons. This was
gamapasa, a village on the traditional       health of the ecosystems and their           initiated by ICCN (Congolese Institute
route connecting Opienge and Loya.           biodiversity.                                for Nature Conservation) and support-
The reserve has never received any             Claude Sikubwabo Kiyengo and Papy          ed by its partner Berggorilla & Regen-
support. A single mission in the whole                    Kabaya Mahamudi Eustache        wald Direkthilfe. These support pro-
of the northern part of the central sec-                                                  jects include: an initiative for the reha-
tor was financed by ICCN for sensitisa-                                                   bilitation and construction of fishponds
tion. The reserve needs support in the       Community Development                        in the southern sector of the park be-
form of field equipment, rations for the     Micro-Projects around                        tween Lubutu and Osso (or Oso),
patrols and to increase motivation for       Maiko National Park                          where people are provided with funds,
the trackers to contribute to the docu-                                                   material for their development, and fry
mentation of gorillas in this part of the    Maiko National Park (MNP) was ga­            (young fish); a water capture project in
forest.                                      zetted in 1970 by the President of           Obassa, Uyugu and Tingi Tingi; a mill
   The activities of this reserve focus      what was then Zaire, Marshal Mobutu.         for cassava flour in Osso in the south-
mainly on the following:                     Before the creation of the park, the         ern sector; and a project for oil, rice and
                                             area was part of the Bakumu Hunting          cassava mills in Manguredjipa in the
– educating the population on primate        Reserve. To create the park, the local       northern sector, carried out by a wom-
  conservation and promoting the             population was relocated from the            en’s association.

                                                                                          7 Gorilla Journal 65, December 2022
D. R. CONGO

A rehabilitated fishpond
                    Photo: ICCN PNM

    In addition to supporting the volun-
tary surrender of 12-gauge shotguns,
the project also reduces poaching, sen-                                                   Above: captured water source
sitises the population by involving them                                                  Left: palm oil production
in biodiversity conservation and com-                                                                        Photos: ICCN PNM
munity development activities, and im-
proves relations between park manag-        the fishpond project in particular, as        of 18,684 people have benefited from
ers and neighbouring communities.           well as the benefits of biodiversity con-     the project. They are the members of
    In order to deliver the project, the    servation.                                    ten associations including one forest
Site Manager of Maiko National Park,           These projects will support as many        reserve (REGOMUKI: Mukingiti and
together with the local chiefs, held con-   as 24,600 direct beneficiaries, as well       Kingombe Gorilla Reserve), two Cath-
sultations with the associations that       as other people living in the area who        olic churches in Osso, two youth asso-
would benefit from the project. He ex-      benefit from selling the fish, rice, oil or   ciations in Obassa and five local devel-
plained the merits of micro-projects for    cassava flour.                                opment initiatives on the Lubutu–Osso
community development in general,              In the case of the fishponds, a total      axis. Eleven fishponds are being reha-

Project beneficiaries
 Beneficiaries/Associa-        No. of  Locality                    Activity                    Participating vil-       Quan-
 tion                          members                                                         lages                    tity
 Osso Health Centre                 8,000 Osso                     Water catchment, small- Uyugu, Obassa                4
                                                                   scale water distribution                             sources
 Bapère Development                 2,500 Manguredjipa             oil mill                    Manguredjipa             1
 Committee/CGC-ICCN                                                rice mill                                            1
 Association of Mothers for         2,000 Osso                     flour mill                  Osso                     1
 Development
 REGOMUKI                           2,200 Lubutu                   support for fish farming    Bitule                   1
 JAGA USIANA                          450 Mukwanyama               support for fish farming    Mukwanyama, Batike 3
 EKITA-AGANDJA                      1,500 Obokala, Djingala        support for fish farming    Bongisia                 2
 AMKA MABADILIKO                      150 Lubutu                   support for fish farming    Sanzalisili              1
 ULD/LEGA                           1,500 Lubutu/EDD               support for fish farming    Mukwanyama               1
 Catholic Church                    4,500 Osso                     support for fish farming    Osso                     1
 JAFARI Youth Association           1,800 Mengwe                   support for fish farming    Lubutu, Osso             1
 Total                             24,600

8 Gorilla Journal 65, December 2022
D. R. CONGO

bilitated and have received fry. Moni-     population centres with drinking water      to a number of different ecosystems.
toring of the growth of fry is under way   and thanks Berggorilla & Regenwald          Grassy savannas in the North and
and the harvesting of fish is expected     Direkthilfe for the capture of four water   South enclose a huge swath of tropical
to start in April 2023.                    sources thus far. The need remains          forest in the heart of the continent.
    As for the water projects, Osso        urgent and the further water distribution   These forests stretch a vast distance,
Health Centre benefited from four cap-     network has already been mapped.            from the East African Rift Valley in
tured sources. The 2,000 members of         Claude Sikubwabo Kiyengo and Jean          eastern Democratic Republic of the
the Association of Mothers for Devel­                     Claude Kyungu Kasolene       Congo to the Atlantic coasts of Gabon
opment of Osso benefited from a cas-                                                   and Cameroon. But not all forests within
sava flour mill. In the northern sec-      These community projects were main-         this region are the same: the forest belt
tor, the 2,500 members of the Bapere/      ly funded by the Deutsche Postcode          is composed of lowland, montane, and
ICCN Development Committee bene-           Lotterie.                                   swamp forests, but also dry woodlands –
fited from a palm oil press and a rice                                                 dominated by the so-called Miombo
husker.                                                                                tree species.
                                           Climate Change in the                          The mighty Congo River meanders
Perspective for the future                 Congo Basin                                 more than 4,700 km through this area
The population of Osso-Obassa-Ki­                                                      in a large arc before flowing into the At-
ngombe, about 10,000 people, wants         The Congo Basin covers an area of           lantic Ocean at an average discharge
Maiko National Park to provide all         more than 4 million km2 and is home         of 41,000 m3 per second. This river is

Rain forest in eastern Democratic Republic of the Congo                                                    Photo: Matti Barthel

                                                                                       9 Gorilla Journal 65, December 2022
D. R. CONGO

so massive that it has formed a natu-       mous amounts of methane while non-          and longer dry seasons can increase
ral boundary on the continent, allow-       flooded forest areas absorb methane.        tree mortality, which would likely re-
ing chimpanzees and bonobos to co-          Thus, tropical forests are extremely im-    duce the CO2 sink capacity of forests
evolve in separate parts of the basin.      portant to help buffer or mitigate the      and alter forest structure and composi-
The latter live south of the river and,     ongoing climate change caused by the        tion. However, how exactly these rap-
like the Congo peacock and okapi, are       release of anthropogenic greenhouse         id changes in climate will affect oth-
found exclusively in the Democratic         gases.                                      er ecosystem functions, such as habi-
Republic of the Congo.                         In turn, climate change also affects     tat for the resident bonobos, remains
   Congolese tropical forests are not       the Congo Basin itself, as can be seen      to be seen. Only one thing is sure:
only important for safeguarding unique      from long-term air temperature data.        increasing our conservation efforts is
fauna. The forests also absorb enor-        Since 1960, the Meteorological Insti-       essential to give the forest the best
mous amounts of carbon dioxide (CO2)        tute of the research station, Congo-        chance to survive and remain healthy.
from the atmosphere through photo-          lese Institute for Agronomic Research       Climate change already compromises
synthesis, thereby playing a major role     (INERA) in Yangambi, D. R. Congo            these systems, while we are in such
in climate processes. At the moment         has been recording the daily air tem-       dire need of them to absorb our emit-
tropical forests are still a net sink for   perature by hand – on tables provid-        ted carbon.
CO2, meaning that they absorb more          ed for this purpose. These measure-                Marijn Bauters and Matti Barthel
CO2 than they release. Intact African       ments have been written out by hand
                                                                                        References
rainforests take up as much as 0.3 pe-      every single day since 1960. Through        Barthel, M. et al. (2022): Low N2O and variable
tagrams (1 Pg = 1015 g) of C per year       some rather painstaking work, an in-        CH4 fluxes from tropical forest soils of the
(Hubau et al. 2020). This is equivalent     ternational team of scientists have now     Congo Basin. Nature Communications 13, 330
to twice Germany’s total annual emis-       digitized and evaluated these tempera-      https://doi.org/10.1038/s41467-022-27978-6
                                                                                        Hubau, W. et al. (2020): Asynchronous carbon
sions from fossil fuel burning and in-      ture data. These six decades of hand-       sink saturation in African and Amazonian
dustry and double the CO2 uptake in         written temperature data show that the      tropical forests. Nature 579, 80–87
intact forests in the Amazon basin! But     Congo Basin has warmed steadily over        Jiang, Y. et al. (2019): Widespread increase
                                                                                        of boreal summer dry season length over the
the CO2 uptake of these forests is not      the past decades (Kasongo et al. in re-     Congo rainforest. Nature Climate Change 9,
the only important process for the glob-    view). In addition to rising temperatures   617–622
al climate. Methane (CH4) and nitrous       in the Congo Basin, the duration of the     Kasongo, E. Y. et al. (in review): Six decades
oxide (N2O) are two other important         dry season has also increased over          of ground-based climate monitoring indicate
                                                                                        warming and increasing precipitation season­
atmospheric greenhouse gases that           the past decades (Jiang et al. 2019),       ality and intensity in Yangambi (central Congo
are also exchanged by tropical forest       together with an increase in the yel-       basin).
soils (Barthel et al. 2022). For example,   lowing of Congolese forests (Zhou et        Zhou, L. et al. (2014): Widespread decline
                                                                                        of Congo rainforest greenness in the past
flooded swamp forests release enor-         al. 2014). Both the rising temperatures
                                                                                        decade. Nature 509, 86–90

                                                                                        GRACE Celebrates World
                                                                                        Gorilla Day
                                                                                        It was early morning on 24 September,
                                                                                        2022, but the GRACE Education
                                                                                        Team was already on the move. They
                                                                                        had been planning for weeks: Zoom
                                                                                        meetings, community invitations, hours
                                                                                        of preparation, and even a new video
                                                                                        about gorillas led to this day. Now, it was
                                                                                        “go” time and the team was headed out
                                                                                        into communities near GRACE to start
                                                                                        the celebrations.
Logging has been an important factor of forest destruction for decades –                    After all, 24 September is a big deal
recently climate change has become another strong factor.                               at GRACE … it’s World Gorilla Day! Ini-
                                                        Photo: Matti Barthel            tiated by the Dian Fossey Gorilla Fund,

10 Gorilla Journal 65, December 2022
D. R. CONGO

                                                                                          the group. They shared their thoughts
                                                                                          on why gorillas are important, how
                                                                                          people can protect gorillas, and what
                                                                                          makes the community-managed Tay-
                                                                                          na Nature Reserve near GRACE spe-
                                                                                          cial. Everyone in the audience cheered
                                                                                          as these young conservation heroes
                                                                                          spoke.
                                                                                             Led by GRACE Educators, commu-
                                                                                          nity members also shared their dedica-
                                                                                          tion to gorillas and conservation on the
                                                                                          local radio station, Radio Tayna. Their
                                                                                          voices carried throughout the Tayna
                                                                                          area, reaching thousands of listeners
                                                                                          on World Gorilla Day.
                                                                                             Gracianne and Sims led each village
                                                                                          in a community-wide cleanup. Togeth-
                                                                                          er, they collected over 1,000 pieces of
                                                                                          rubbish (including plastic bottles and
                                                                                          bags) from homes and common areas
A procession through Kagheri to celebrate World Gorilla Day                               and brought it to a community dispos-
                                                           Photo: GRACE                   al site. This reinforced the importance
                                                                                          of working together to clean up the en-
World Gorilla Day brings together peo-       Sims, “to see the local authorities, kids,   vironment. After so much planning,
ple from around the world to raise           and women all participating together         Gracianne was “proud that the team
awareness of gorillas and their conser-      on this day – seeing everyone dancing        brought World Gorilla Day celebrations
vation. For GRACE staff, who dedicate        and singing for gorillas – really made       to three villages at the same time.”
their passion and purpose to caring for      me happy.”                                      In all three villages, over 300 com-
rescued Grauer’s gorillas daily, there is       Students from GRACE Conserva-             munity members participated in a Pride
so much to celebrate.                        tion Clubs read stories and poems to         Wall where Educators posed three
    It is also an important time to rec-
ognise the communities living near
GRACE which help make our gorilla re-
habilitation and conservation work pos-
sible. Therefore, they are the first to be
invited to celebrate with us every World
Gorilla Day. This year, GRACE Educa-
tors expanded their festivities to three
villages: Katoyo, Kasugho, and Kagh-
eri. More than 11,000 people came to
learn about and take conservation ac-
tion for Grauer’s gorillas and the forest.
    In Katoyo and Kasugho, over 4,000
people, including GRACE staff and
their families, gathered to celebrate
gorillas. GRACE Educators Gracianne
Basyanirya and Guy Simisi (Sims)
Mumbere led the celebrations in these
two villages. They organised speech-
es, songs, processions, educational          Residents of Kasugho gather with GRACE Educator Sims (second from
presentations and more. According to         left) to celebrate World Gorilla Day                   Photo: GRACE

                                                                                          11 Gorilla Journal 65, December 2022
D. R. CONGO

questions: 1) “What do you know about      people about gorillas. For some in at-      known what GRACE is, where we are
gorillas?” 2) “How do you feel about       tendance, this was their first time see-    located, and what we do. They have
gorillas?” and 3) “What have you done      ing footage of Grauer’s gorillas. Bro-      promised to welcome us for future ac-
to protect the forest for people and go-   chures were also distributed for peo-       tivities in Kagheri.”
rillas?” Community members shared          ple to learn more about gorillas and            As deforestation and habitat loss
their responses by writing answers on      GRACE.                                      continue to threaten Grauer’s gorillas
the Pride Wall. This allowed people of        In partnership with GRACE, the           in eastern Democratic Republic of the
all ages and backgrounds to express        community organisation SPEED-RDC            Congo, GRACE Educators are work-
their ideas and share how they take ac-    led a procession for gorillas through the   ing to address these threats by bringing
tion to protect gorillas.                  center of Kagheri, getting people of all    conservation education to more com-
    GRACE Educators worked with local      ages involved in the celebration. A rep-    munities. Honoré explained: “Kagheri
officials, women’s groups, churches,       resentative from Tayna Nature Reserve       is a new area for us, but it was mem-
community associations and students        was invited to speak to the residents       orable and something we have been
from 22 schools to make these ex-          of Kagheri and answer their questions       thinking about for a long time. Now,
panded celebrations possible. GRACE        about gorillas and the forest. This was     the community here really respects
Education Manager Honoré Kambale           an important moment for building trust      and understands our mission and mes-
Masumbuko said, “working in collabo-       and understanding between the com-          sage as GRACE Educators. This event
ration with local associations and com-    munity and the different conservation       gave us roots in Kagheri and will help
munities helped us reach our goals.”       groups working in the region.               us continue to grow into additional vil­
This was especially true in Kagheri,          Asked to share his favourite high-       lages.”
where GRACE Educators celebrated           light from World Gorilla Day, GRACE             Located in a biodiversity hotspot and
World Gorilla Day for the first time.      Communications Manager Josias Ka­           one of the last remaining strongholds
    A drama about gorilla conservation     mbale Kamaliro said, “all of the com-       for Grauer’s gorillas, GRACE is on a
presented in the center of Kagheri drew    munity – including the soldiers, local      mission to inspire 100,000 hearts to
in large crowds to watch. Later that       leaders, teachers – everyone was in-        take conservation action. Thanks to the
day, a film created by the GRACE Ed-       volved in the activities throughout Ka­     dedication of the GRACE Education
ucation Team taught more than 5,800        gheri. Since that day, people have          team and the support of local commu-
                                                                                       nities, we are proud to report that over
                                                                                       11,000 people (including 5,800 new
                                                                                       contacts) were connected with Grau-
                                                                                       er’s gorillas this World Gorilla Day! The
                                                                                       GRACE Education team is already
                                                                                       planning for next year’s events, with a
                                                                                       goal to expand the celebrations even
                                                                                       further. Their commitment to communi-
                                                                                       ty-led conservation is making a differ-
                                                                                       ence for people and Grauer’s gorillas
                                                                                       in eastern D. R. Congo.
                                                                                        Laurie G. Cummins and Honoré Kam-
                                                                                                               bale Masumbuko

                                                                                       GRACE’s 2022 World Gorilla Day cel-
                                                                                       ebrations would not be possible with-
                                                                                       out the planning, coordination and
                                                                                       support of the entire GRACE Team,
                                                                                       including: Gracianne K. Basyanirya,
                                                                                       Guy Simisi Mumbere, Josias Kambale
                                                                                       Kamaliro, Faustin Muhindo Kibwana,
                                                                                       Jackson Kabuyaya Mbeke, Katie Faw-
Residents of Katoyo gather to add their thoughts on gorillas to the Pride              cett, Tommi Wolfe, and the communi-
Wall.                                                       Photo: GRACE               ties of Katoyo, Kasugho and Kagheri.

12 Gorilla Journal 65, December 2022
D. R. CONGO

                                                                                         written specifically for the campaign.
                                                                                         Furthermore, post-evaluation data in-
                                                                                         dicated that radio can be effective at
                                                                                         encouraging action: 100 % of people
                                                                                         surveyed told friends to listen to con-
                                                                                         servation programming on the radio. In
                                                                                         the context of community led conser-
                                                                                         vation, spreading awareness amongst
                                                                                         the community is an important action
                                                                                         for gorilla conservation. Findings sup-
                                                                                         port the use of radio, including the use
                                                                                         of culturally relevant song, as an impor-
                                                                                         tant and effective tool for conservation
                                                                                         education.
                                                                                            Building on our findings, GRACE
                                                                                         educators have designed and plan to
                                                                                         launch and evaluate a new radio cam-
                                                                                         paign in 2022 focused on the connec-
The GRACE Education team outside the radio station                    Photo: GRACE       tion between human, forest, and gorilla
                                                                                         health. The new campaign is expected
GRACE Uses Radio for                           campaign was run, as was shown            to air beginning in October 2022. “Stay
Conservation Education                         in the post-evaluation scores: 100 %      tuned” for updates on this exciting new
                                               of respondents reported that gorillas     radio outreach program!
The Tayna Nature Reserve, eastern              can get sick; 99 % said gorillas and
Democratic Republic of the Congo,              humans can get the same diseases;         Summary of
is managed in partnership with the             and 89 % said practicing good hygiene     Fawcett, K. et. al. (2022): Radio as a
local community and is home to the             can prevent gorillas from getting sick.   Tool for Conservation Education. Inter-
critically endangered Grauer’s gorilla         In addition, 88 % of respondents cor-     national Zoo Educators Journal (Inter-
(Gorilla beringei graueri). In response        rectly reported information, which was    national Zoo Educators Association)
to Ebola and COVID-19, the Gorilla             only delivered through lyrics of a song   58, 32–35
Rehabilitation and Conservation Edu­
cation (GRACE) Center opted to utilise
radio for conservation education as an
alternative to in-person programming
in 2021.
   Very little data exists on the ability of
radio programming to positively impact
conservation knowledge, attitudes, and
behaviours, so GRACE used this time
to evaluate our efforts. GRACE educa-
tors and international zoo advisors cre-
ated a new radio campaign focused on
the threats of human-wildlife disease
transmission.       Pre-/post-evaluations
were conducted with 200+ individuals
across 21 community neighbourhoods
(Barazas). Solar-powered radios were
provided. Programming was delivered
in local languages and a variety of for-
mats.                                          GRACE staff educator Gracianne interviewing for radio program
   Knowledge increased, when the                                                                         Photo: GRACE

                                                                                         13 Gorilla Journal 65, December 2022
GORILLAS

As Temperatures                               wild gorillas from the two mountain        than Bwindi gorillas, which in part like-
                                              gorilla populations (Bwindi and Virun-     ly explains why they drink water much
Increase, Mountain                            ga). Mountain gorillas very rarely drink   less frequently.
Gorillas get Thirstier                        water from streams, swamps, or pud-           The results of this study revealed
                                              dles. This is because the plants that      a higher dependence on free-stand-
Climate change is in the media on a           mountain gorillas eat contain a large      ing water than expected in these rain-
daily basis, but the focus is often on arid   amount of water, often accounting for      forest-dwelling mountain gorillas that
ecosystems, while we rarely think about       more than 90 % of the wet weight of the    consume plants with high water con-
its impact on animals living in tropical      plants. Nonetheless, as temperatures       tent. Additionally, as temperatures are
rainforests. An increase in temperature       increase and weather patterns change,      expected to continue to increase, the
may lead to changes in rainfall and           it is important to examine how endan-      mountain gorillas may need to work
patterns of fruit production by trees in      gered species such as mountain goril-      harder to maintain their water balance
rainforests. Additionally, the behaviour      las obtain sufficient water.               via sources of free-standing water.
of animals may also change, such as               Using data from 21 gorilla groups      Therefore, there are important impli-
their activity patterns or movement           in the two populations between 2010        cations for the conservation and be-
patterns. Uganda and Rwanda have              and 2020, we found that the frequen-       haviour of the mountain gorillas. First,
already experienced the impact of             cy of water drinking significantly in-     an increase in the frequency of wa-
climate change, with increased tem­           creased at higher maximum tempera-         ter drinking may lead to an increase
peratures and frequencies of extreme          tures than cooler ones. No relationship    in the risk of parasite exposure and
weather events. Specifically, the mean        between water drinking and rainfall        compromise the health of the gorillas,
annual temperature has increased by           was found. The Bwindi gorillas drank       especially in cases where the water
approximately 2.1 °C over the past            water on about 6 % of days observed        sources are also used by local com-
50 years, with the trend expected             whereas the Virunga gorillas drank wa-     munity members. Second, habitat use
to continue in the coming decades.            ter on only 0.6 % of observation days.     and ranging patterns of the gorillas
Additionally, rainfall has become less        This difference between the two popu-      may change as they rely more on water
seasonal.                                     lations may be due to the overall low-     sources. Small streams and swamps
    The goal of our study was to exam-        er temperatures in the Virungas (due       are not evenly distributed throughout
ine the relationship between the fre-         to higher altitude). However, we also      Bwindi and the Virungas and some of
quency of water drinking and maximum          found that Virunga gorillas consumed       these water sources dry up seasonally.
temperature and rainfall in habituated        more foods with higher water content       Future research to better understand

  GORILLAS our friends FOREVER
                                                                                         If you want to find out more about
  Uganda introduced gorilla tourism           projects ensuring the water supply for     the campaign and the Eco-Box, you
  in Bwindi Impenetrable National             local populations). These projects will    can find it at
  Park In the early 1990s. At that time,      help to protect Bwindi and its gorillas       www.gorillafriends.org
  the silverback Ruhondeza was the            in the future.
  leader of the Mubare group, one of
  two groups that tourists could visit.
  Dieter Beller launched the campaign
  Gorillas our friends forever in June
  2022 to mark the tenth anniversary
  of the death of this legendary gorilla.
  As part of the campaign, he is selling
  an Eco-Box with gorilla figures made
  of pewter and collecting donations.
  The proceeds help to fund en­
  vironmental, nature and species
  conservation projects (for example,

14 Gorilla Journal 65, December 2022
GORILLAS

the impact of increased water drinking          Distribution and Habitat                        Preliminary studies and informal in-
would include monitoring water qual-                                                        terviews with local communities sur-
ity and quantity as well as creating a
                                                Use of Gorillas in the Ebo                  rounding the Ebo forest from 2002 on-
detailed map of water availability, to          Forest                                      wards suggested that the gorilla popu-
ascertain whether water is a limiting                                                       lation is restricted to the north-eastern
factor or not, and if the gorillas’ rang-       Although gorilla distribution and habitat   part of the forest. In our study from Jan-
ing patterns are altered by the search          use are fairly well known for many          uary 2013 to November 2017, we want-
for water.                                      gorilla populations in Cameroon, very       ed to map the distribution of the gorilla
   Lastly, a notable aspect of this pro-        little is known concerning the Ebo          population there and to assess habitat
ject is that it is a result of long-term data   population, probably one of the most        use mostly using indirect signs of goril-
collection. Analysis of data leading to         threatened populations of western           las including nests, faecal and feeding
these findings would not be possible            gorillas. The traditional threats to this   remains.
from data collection over a short period        isolated gorilla population include             The study site (~39 km2) was iden-
of one or two years. Furthermore, this          habitat loss and degradation related        tified from previous records of gorilla
project emphasises the value of col-            to settlement and subsistence farming       signs by the Ebo Forest Research Pro-
laborations between different organisa-         expansion, logging and climate change.      ject between 2005 and 2011, and in-
tions. The data on water drinking was           For example, in 2020, the entire Ebo        formal reports from local hunters. We
from two long term research projects            forest was proposed for logging by the      used the recce survey method or ran-
(Max Planck Institute for Evolutionary          government of Cameroon. This led            dom walks as opposed to line transect
Anthropology in Bwindi and the Dian             to protests and pressure from stake­        methods which facilitate future access
Fossey Gorilla Fund in Rwanda), the             holders including grassroots com­           by hunters and destroy more vegeta-
weather data for Bwindi was provid-             munities, leading to the suspension of      tion.
ed by the Institute of Tropical Forest          the logging concession process. With            Recces involve walking in a prede-
Conservation, and the overall project           no current legal conservation status for    termined direction, allowing for data
was supported by the ‘Vanishing Treas-          the Ebo forest, there is a continued        collection on the spatial distribution of
ures’ project of GRASP, which is part of        risk that logging and other land use        an animal population in remote areas
the United Nations Environmental Pro-           changes could threaten the local bio­       by intentionally taking paths of least re-
gram. By working together and shar-             diversity.                                  sistance which are permitted to devi-
ing data, we can learn more and pro-
vide useful information for conserva-
tion management.
                        Martha M. Robbins

Original Article
Wright, E., Eckardt, W., Refisch, J.,
Bitariho, R., Grueter, C. C., Ganas-
Swaray, J., Stoinski, T. S., Robbins,
M. M. (2022): Higher Maximum Tem-
perature Increases the Frequency of
Water Drinking in Mountain Gorillas
(Gorilla beringei beringei). Frontiers in
Conservation Science 3, 738820. doi:
10.3389/fcosc.2022.738820

Study area within the Ebo Forest
and recce track distribution
                 Map: Daniel Mfossa

                                                                                            15 Gorilla Journal 65, December 2022
GORILLAS

A view of the Ebo Forest                                                                           Photo: Daniel Mfossa/ZSSD

ate from the initial direction through the      Swampy areas cover hydromorphic          followed by secondary forest (7.90 %).
study area to some degree.                   soil seasonally or permanently flood-       The extent of grassland and the
   The study site is characterised by        ed, with a mixture of species princi-       swampy areas were comparable and
mature forest with sparse undergrowth        pally characterised by high densities of    covered 2.63 % and 2.43 % of the area
and late successional large tree spe-        hydromorphic plants and some water-         respectively. Gorilla signs were record-
cies. The forest canopy is generally         adapted shrubs or trees.                    ed in the four main habitat types found
closed (75–100 % covered), with mini-           Over the study period we surveyed        in the study area; more than half of the
mal sapling undergrowth. Primary and         1935.8 km of recces in the study area       signs were observed in the grassland
very old secondary forest falls into this    and detected evidence of gorilla pres-      (53.6 %) followed by the mature forest
vegetation category.                         ence on 261 occasions. Based on the
   Secondary forest covers areas af-         distribution of gorilla signs across the
fected by recent or old anthropogen-         forest, the total estimated distribution      Human signs recorded in the
ic activities (logging, abandoned plan-      of the population covered ~22 km2 and         study area from 2013 to 2017
tation or habitation) with the canopy        was restricted to the central band of
moderately closed (50–75 % covered)          the study area. Both overall and for          Human signs           Number
or open (25–50 % covered), a relative        each season, gorilla signs were con-          Used cartridge shells     340
dense ligneous and/or herbaceous un-         centrated in the northern part of the         Wire snares               110
dergrowth and presence of indicator          study area. We observed a slight sea-         Cut marks or machete cuts 72
trees or scrubs.                             sonal variation, with gorilla signs being     Used batteries             52
   Grassland covers areas ranging            more clumped during the dry season            Hunting trails             51
from 50–3000 m2 with scattered young         compared to the rainy season. Except          Footprints                 21
trees and/or shrubs. In this vegetation      for the southwestern part of the study        Encounters                 21
category the canopy is open (25–50 %         area, evidence of human activities was        Gunshots                   19
covered) or very open (0–25 % cov-           prominent across the study area, in-          Hunting camps              14
ered), and the dense or very dense           cluding within areas with a high gorilla      Vocalisations               3
herbaceous undergrowth is sometimes          presence.                                     Abandoned logging roads     2
dominated by ferns and plants in the            Mature forest was the most com-            Other signs                 6
families Marantaceae and Zingibera­          mon habitat type throughout the study         Total                     711
ceae.                                        area (87.04 % coverage of the total),

16 Gorilla Journal 65, December 2022
GORILLAS

                                                                                         Original publication
                                                                                         Mfossa D. M., Abwe, E. E., Whytock,
                                                                                         R. C., Morgan, B. J., Huynen, M.-C.,
                                                                                         Beudels-Jamar, R. C., Brotcorne, F. &
                                                                                         Tchouamo, R. I. (2022): Distribution,
                                                                                         habitat use and human disturbance of
                                                                                         gorillas (Gorilla gorilla) in the Ebo for-
                                                                                         est, Littoral Region, Cameroon. Afri-
                                                                                         can Journal of Ecology 00, 1–13

                                                                                         Understanding Visitors
                                                                                         at Tourist Sites to Protect
                                                                                         Great Apes from Disease
                                                                                         Nonhuman great apes (bonobos,
                                                                                         chimpanzees, eastern gorillas, western
                                                                                         gorillas and orangutans) are particularly
                                                                                         vulnerable to infectious diseases
                                                                                         from humans because of our close
                                                                                         genetic relatedness. This vulnerability
Gorilla distribution in the Ebo forest                          Map: Daniel Mfossa       is highest in close-contact activities
                                                                                         such as tourism and research. While
(37.9 %). Very few signs were recorded      to be investigated systematically, the       these activities can assist conservation
in swampy areas (5.6 %) and second-         situation here could be less catastroph-     efforts, there are also well-documented
ary forest (2.8 %).                         ic than elsewhere, since gorillas are not    health risks. With the COVID-19 pan­
   These results suggest that gorillas      currently targeted by hunters, at least      demic reviving concerns for disease
used grassland more than expected           partly due to sensitisation campaigns        transmission, the “Protect Great Apes
(53.6 % of signs yet only 2.63 % cov-       carried out by the community conser-         from Disease” initiative was born (see
erage) and mature forest less than ex-      vation association ‘Clubs des Amis des       www.protectgreatapesfromdisease.
pected (37.9 % of signs yet 87.04 %         Gorilles’ (Gorilla Guardian Clubs) since     com).
coverage). Gorillas tended to use the       2012. This concurs with previous stud-          At an early stage of the pandemic
swampy areas more often during the          ies that have demonstrated that con-         (pandemic announced 11 March 2020
dry season (57.14 %), while they vis-       sistent conservation activities in local     and data collected from 19 January to
ited the secondary forest most during       communities positively influence the         27 February 2021), our team aimed
the rainy season. Other studies have        preservation of wildlife species.            to develop visitor education and guide
revealed that gorillas show a prefer-           Further studies using alternative        training materials for use in African
ence for light gaps in the forest which     survey methods are essential to de-          sites with great ape tourism (where you
provide them with a variety of herba-       termine accurately the population size       can find all great apes except orang­
ceous and fruiting plants as food sourc-    and dynamics, to shed light on the sta-
es and preferred nest-building mate-        tus of this population, and to clarify its
rials.                                      taxonomic status through genetic stud-
   The Ebo gorillas ranged over around      ies. We recommend promoting and
22 km2 and were restricted to the cen-      supporting sustainable alternative live-
tral band of the study area. This re-       lihood projects for the benefit of the
sult concurs with an earlier study which    local population that should, if imple-
suggested that the gorillas may have a      mented appropriately, reduce pressure
very limited distribution within the Ebo    on the gorilla habitat.
forest.                                      Daniel Mbouombouo Mfossa, Ekwoge
   Although the indirect human impact           Enang Abwe and Bethan J. Morgan
on the Ebo gorilla population still needs

                                                                                         17 Gorilla Journal 65, December 2022
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