New insights into Sulawesi's apex predator: the Sulawesi civet Macrogalidia musschenbroekii
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New insights into Sulawesi's apex predator: the Sulawesi civet Macrogalidia musschenbroekii IWAN HUNOWU, ALFONS PATANDUNG, WULAN PUSPARINI, ISABEL DANISMEND ANDI CAHYANA, SYAHRIL ABDULLAH, CASPIAN L. JOHNSON, HARRY HILSER R I V O R A H A S I A , J E N L Y G A W I N A and M A T T H E W L I N K I E Abstract The Sulawesi civet Macrogalidia musschenbroekii is mammal are endemic (Whitten et al., ). This includes endemic to the Indonesian island of Sulawesi, where it is the several ground-dwelling endemic ungulates: the babirusa largest mammalian predator. Limited field data means that Babyrousa celebensis, Sulawesi warty pig Sus celebensis, and little is known about the species’ distribution, habitat prefer- anoas Bubalus depressicornis and Bubalus quarlesi. Yet despite ences, conservation status and needs, but it is believed to de- this potentially rich prey base, the island’s apex mammalian pend on primary forest. We conducted camera-trap surveys predator is the native Sulawesi civet Macrogalidia musschen- across the forests of North Sulawesi, including in two of broekii, weighing only – kg. Excluding feral dogs and cats, its main protected areas: Bogani Nani Wartabone National the other mammalian carnivore species known from Sulawesi Park and Tangkoko Nature Reserve. From camera trap are the Malay civet Viverra tangalunga and common palm stations and , trap nights, Sulawesi civets were recorded civet Paradoxurus hermaphrodites, both introduced to the times at stations, and in almost equal numbers in pri- island in the th century. The latter is rare on the island mary forest, secondary forest and farmland, including the and may not be fully established (Wemmer & Watling, ; first photographic records from both the National Park and Veron, ; Veron et al., ). Nature Reserve. We also collected data on the Malay civet The Sulawesi civet is a little known carnivore species Viverra tangalunga, an introduced species of Viverridae and named in when a specimen was brought to Leiden potential competitor. Our records (n = ) revealed that it Museum, Netherlands (Wemmer & Watling, ; Veron, is established in secondary forest; it only co-occurred twice ). It was nearly a century later, however, before studies with the Sulawesi civet. With a lapse of . years since the on captured individuals, from central Sulawesi, provided the last field record of the Sulawesi civet, our findings offer new first insights into its behaviour and diet, which include insight into its status and new enthusiasm within the pro- rodents and fruit (e.g. Arenga and Pandanus), and indicated vincial government for its conservation, which has led to a preference for primary forest (Wemmer & Watling, ). an extension of camera-trap research into neighbouring The Sulawesi civet is categorized as Vulnerable on the Gorontalo province. IUCN Red List because of a presumed population decline, precipitated by loss of primary forest (Tasirin et al., ). Keywords Bogani Nani Wartabone National Park, camera There are, however, no recent and reliable population data, traps, Macrogalidia musschenbroekii, small carnivore, as reflected by the patchy IUCN species range map that Sulawesi civet, Tangkoko Nature Reserve, Viverridae, depicts four unconnected distribution polygons in various Wallacea parts of the island, probably a reflection of the low sampling effort for this species. Whether this civet is able to survive outside primary forest is unknown because of the low survey T he Indonesian island of Sulawesi, located in the Wallacea biodiversity hotspot, has exceptionally high levels of endemism. For example, % of its species of effort in other potential habitat types, a matter that applies to most of Sulawesi’s mammals. To address this knowledge gap, we conducted camera-trap surveys to investigate mam- malian assemblages across North Sulawesi province, focus- IWAN HUNOWU, ALFONS PATANDUNG, WULAN PUSPARINI (Corresponding author), ing on the province’s two main protected areas (Bogani ANDI CAHYANA and MATTHEW LINKIE Wildlife Conservation Society, Indonesia Nani Wartabone National Park, formerly known as Dumo- Program, Bogor, 16151, Indonesia. E-mail wpusparini@wcs.org ga Bone National Park, and Tangkoko Nature Reserve), ISABEL DANISMEND Dobbs Ferry High School, Dobbs Ferry, New York, USA and potentially suitable habitat in areas between them. SYAHRIL ABDULLAH Bogani Nani Wartabone National Park, North Sulawesi, One of our aims was to determine the presence and habitat Indonesia preferences of the Sulawesi civet across its North Sulawesi CASPIAN L. JOHNSON, HARRY HILSER and RIVO RAHASIA Selamatkan Yaki, North Sulawesi, Indonesia range. Survey data from the National Park buffer zone were also collected, to inform a local NGO partner’s land RIVO RAHASIA and JENLY GAWINA Balai Konservasi Sumber Daya Alam, North Sulawesi, Indonesia purchase scheme, which aims to secure unprotected Received December . Revision requested February . biodiversity-rich forest corridors, for which the Sulawesi Accepted June . First published online December . civet is one of several priority species. Oryx, 2020, 54(6), 878–881 © 2019 Fauna & Flora International doi:10.1017/S0030605319000723 Downloaded from https://www.cambridge.org/core. IP address: 46.4.80.155, on 04 Feb 2021 at 19:45:03, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0030605319000723
Sulawesi’s apex predator 879 Camera traps were employed on a km grid cell system , generating , trap nights over . km from altitudes with single cameras, set by four-person teams from the of –, m. Forty-nine camera stations were set in forest Wildlife Conservation Society, Selamatkan Yaki, Ministry patches between the National Park and Tangkoko Nature of Environment and Forestry, and the community. The Reserve during March–July , generating , trap nights placement of cameras was systematic random in a checker- over km from altitudes of –, m. Field teams board pattern in the National Park and Nature Reserve, and checked cameras and retrieved data monthly. Eleven cameras random in patches of potentially suitable habitat elsewhere, malfunctioned or disappeared and were not included in the including in the small Nature Reserve of Gunung Ambang analysis. The data for the Sulawesi civet from the National (c. m). The mean distance between cameras was Park were supplemented by an opportunistic camera trap ± SD . km. Reconyx (Holmen, USA), Cuddleback (De record, and subsequent release of a snared individual. Pere, USA) or Bushnell (Overland Park, USA) camera traps Camera-trap data were compiled for all civet species, were fixed to a tree at c. cm above ground and – m from with time, date and location recorded. ArcGIS . (ESRI, trails, without bait, and were continuously active. The land- Redlands, USA) was used to construct a geospatial database scape included the National Park and its buffer zone, with for the camera-trap stations. A land cover map was created camera stations set during September –April , using government data for , onto which records of generating , trap nights over . km from altitudes the Sulawesi and Malay civets were overlain, and species of –, m. The entire km Tangkoko Nature Reserve encounter rates were calculated (photographs separated by was surveyed with camera stations set during July–October . minutes per trap nights). TABLE 1 Data collected on the Sulawesi civet Macrogalidia musschenbroekii and Malay civet Viverra tangalunga from Bogani Nani Wartabone National Park and Tangkoko Nature Reserve, and from forest patches between them (Fig. ). Asterisks indicate records from the same location. No. of independent Relation to Altitude Species recorded records protected area Time (m) Land-use type Bogani Nani Wartabone National Park Sulawesi civet 1 Inside 05.34 454 Secondary forest (camera-trap study) 1 Inside 03.23 1,040 Secondary forest 1 Inside 21.55 344 Farmland 2 Inside 19.10, 01.35 324 Farmland 2 Inside 10.45, 20.55 1,069 Primary forest 1 Outside 04.46 253 Primary forest 2 Outside 05.33, 19.39 505 Secondary forest 3 Outside 18.23, 05.40, 21.45 290 Primary forest Sulawesi civet 1 Inside 452 Secondary forest (snared individual) Sulawesi civet 1 Inside 01.15 1,086 Secondary forest (opportunistic camera trap) Malay civet 1 Outside 21.19 21 Farmland Tangkoko Nature Reserve Sulawesi civet 1 Inside* 20.11 544* Farmland* 1 Inside 18.19 458 Farmland Malay civet 1 Inside 00.19 74 Secondary forest 1 Inside 02.12 126 Secondary forest 2 Inside 04.27, 19.17 180 Open land 4 Inside* 20.03, 19.06, 19.56, 18.25 544* Farmland* 1 Inside 20.47 575 Secondary forest Other forest patches Sulawesi civet 1 Outside 21.56 830 Primary forest 1 Inside (Gunung 18.16 1,515 Secondary forest Ambang Nature Reserve) Malay civet 1 Outside 00.28 475 Secondary forest 13 Outside 19.25, 19.55, 21.27, 03.33, 904 Secondary forest 18.49, 19.57, 20.56, 01.10, 19.09, 19.56, 21.11, 01.21, 23.09 Oryx, 2020, 54(6), 878–881 © 2019 Fauna & Flora International doi:10.1017/S0030605319000723 Downloaded from https://www.cambridge.org/core. IP address: 46.4.80.155, on 04 Feb 2021 at 19:45:03, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0030605319000723
880 I. Hunowu et al. FIG. 1 Locations of camera-trap records of the Sulawesi civet Macrogalidia musschenbroekii ( records in locations) and Malay civet Viverra tangalunga ( records in locations) in Tangkoko Nature Reserve and Bogani Nani Wartabone National Park, and areas between, including in Gunung Ambang Nature Reserve, North Sulawesi province, Indonesia. The high trapping effort but low detection rate for the palm civets. Brodie et al. () did not record the Sulawesi Sulawesi civet (n = ) yielded a low encounter rate in the civet in , camera-trap nights in Tangkoko Nature National Park (. records per trap nights), Tangkoko Reserve but did record the Malay civet. Thus the Sulawesi Nature Reserve (.) and other forest patches (., includ- civet may be rare and/or ground traps set for a semi-arboreal ing Gunung Ambang Nature Reserve). Malay civet detections civet may have a low detection probability. (n = ) yielded a higher encounter rate in the Tangkoko We recorded the Sulawesi civet times at eight stations Nature Reserve (.) and other forest patches (.), than in the National Park, and with two opportunistic records in the National Park (.). We recorded the Sulawesi civet from two locations. These records were from altitudes of in more locations () than the Malay civet (). –, m, from primary forest (three of stations), sec- From camera trap nights, Lee et al. () captured ondary forest (/) and farmland (/; Table , Fig. ). From three Sulawesi civet images in Southeast Sulawesi province the Tangkoko Nature Reserve there were two Sulawesi civet (encounter rate = .), but none from Central (, records from farmland (/ stations), and m from for- camera-trap nights and km of transect surveys) or est, including one recorded at the same station as a Malay North Sulawesi province (, trap nights and km). civet. Our study is the first to confirm the presence of the Additionally, they recorded one Malay civet and no common Sulawesi civet with photographic records in both Bogani PLATE 1 Camera-trapped (a) Sulawesi civet Macrogalidia musschenbroekii in primary forest in Bogani Nani Wartabone National Park, showing its characteristic striped tail (February ), and (b) Malay civet Viverra tangalunga (August ) in Tangkoko Natural Reserve, and (c) snared Sulawesi civet found by a National Park ranger patrol team (March ), and (d) examples of bushmeat seen at a road-block patrol for monitoring wildlife trade in Maelang (from left to right Sulawesi civet, black-crested macaque Macaca nigra and babirusa Babyrousa celebensis) in . Oryx, 2020, 54(6), 878–881 © 2019 Fauna & Flora International doi:10.1017/S0030605319000723 Downloaded from https://www.cambridge.org/core. IP address: 46.4.80.155, on 04 Feb 2021 at 19:45:03, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0030605319000723
Sulawesi’s apex predator 881 Nani Wartabone National Park and Tangkoko Nature Enhancing the Protected Area System in Sulawesi for supporting Reserve (previous records were from tracks and scats). various parts of this work, and Jedediah Brodie for lending us camera traps. Amongst the other forest patches surveyed, the Sulawesi civet was recorded in primary (/) and secondary forest Author contributions Study design: WP, IH, CJ, HH, ML; field- (/) inside Gunung Ambang Nature Reserve, and the work: AP, CJ, RR; data analysis: AP, AC; writing: WP, ID, ML, IH, CJ. Malay civet from secondary forest (/) and open land (/). Despite the relatively low number of records, our data re- Conflicts of interest None. veal diverse habitat use by the Sulawesi civet (Wemmer & Ethical standards The research involved no human subjects, experi- Watling, ; Plate ) and concur with Lee et al.’s () mentation with animals and/or collection of specimens, and otherwise observation that the species is not restricted by elevation abided by the Oryx guidelines on ethical standards. or forest disturbance. Our results showed widespread pres- ence of the Sulawesi civet in Bogani Nani Wartabone National Park, with the single Malay civet record from a References shrub-mixed dryland farm km from the Park’s border. In its native range of Sumatra, Kalimantan, Malaysia, B R O D I E , J.F., H E L M Y , O., P A N G A U -A D A M , M., U G I E K , G., F R O E S E , G., G R A N A D O S , A. et al. () Crossing the (Wallace) line: local presumably Brunei, and probably introduced into the abundance and distribution of mammals across biogeographic Philippines, the Malay civet occupies a variety of habitat barriers. Biotropica, , –. types, such as encroached areas (Duckworth et al., ), D U C K W O R T H , J.W., M AT H A I , J., W I LT I N G , A., H O L D E N , J., H E A R N , A. and was more widespread in Tangkoko Nature Reserve & R O S S , J. () Viverra tangalunga. In The IUCN Red List of than the Sulawesi civet, with both species recorded in the Threatened Species , e.TA. Http://dx.doi.org/. same forest patches between the two protected areas. /IUCN.UK.-.RLTS.TA.en [accessed June ]. Forest loss is a potential threat to the Sulawesi civet. During L E E , R.J., G O R O G , A.J., D W I Y A H R E N I , A., S I W U , S., R I L E Y , J., – forest cover declined by .% in Bogani Nani A L E X A N D E R , H. et al. () Wildlife trade and implications for law Wartabone National Park and .% in Tangkoko Nature enforcement in Indonesia: a case study from North Sulawesi. Reserve, with increased accessibility being the main explana- Biological Conservation, , –. tory factor (WCS-EPASS, ). Roads and fragmented forest L E E , R.J., R I L E Y , J., H U N O W U , I. & M A N E A S A , E. () The Sulawesi palm civet: expanded distribution of a little known endemic increase access for poachers. We released one Sulawesi civet viverrid. Oryx, , –. from a snare trap, which was probably set for wild pigs. T A S I R I N , J., D I N E T S , V., M E I J A A R D , E., B R O D I E , J., N I J M A N , V., Bushmeat consumption is widespread in North Sulawesi L O F F E L D , T.A.C. et al. () Macrogalidia musschenbroekii. In The province. A market survey conducted by Lee et al. () dur- IUCN Red List of Threatened Species , e.TA. ing – recorded , wild mammal specimens on Http://dx.doi.org/./IUCN.UK.-.RLTS. TA.en [accessed June ]. sale, including the Sulawesi civet. Nevertheless, new conserva- V E R O N , G. () The palm civets of Sulawesi. Small Carnivore tion measures are being implemented in the protected areas Conservation, , –. that we studied, with ranger patrol teams and local informant V E R O N , G., W I L L S C H , M., D AC O S TA , V., P AT O U , M.L., S E Y M O U R , A., networks, and law enforcement agency partnerships have im- B O N I L LO , C. et al. () The distribution of the Malay civet Viverra plemented an integrated site-based protection strategy since tangalunga (Carnivora: Viverridae) across Southeast Asia: natural or human-mediated dispersal? Zoological Journal of the Linnean . Camera trapping is now being extended into neighbour- Society, , –. ing Gorontalo province, which could provide additional infor- WCS-EPASS (W I L D L I F E C O N S E R VAT I O N S O C I E T Y –E N H A N C I N G mation on the Sulawesi civet and help guide the conservation T H E P R O T E C T E D A R E A S Y S T E M I N S U L AW E S I ) () Del : Update of this species. Baseline Data for Forest Cover of the Three Project Sites Including Forest Cover, Threat Index, EHI & Active Encroachment. UNDP, Acknowledgements We are grateful to the Indonesian Ministry Bogor, Indonesia. of Environment and Forestry, especially Bogani Nani Wartabone W E M M E R , C. & W AT L I N G , D. () Ecology and status of the Sulawesi National Park and BKSDA-North Sulawesi staff for granting us field- palm civet Macrogalidia musschenbroekii schlegel. Biological work permission and supporting data collection, Fondation Segré, Conservation, , –. Rainforest Trust, Wildlife Reserves Singapore Conservation Fund, W H I T T E N , T., H E N D E R S O N , G.S. & M U S T A F A , M. () The Ecology and UN Development Programme/Global Environmental Finance of Sulawesi. Gajah Mada University Press, Yogyakarta, Indonesia. Oryx, 2020, 54(6), 878–881 © 2019 Fauna & Flora International doi:10.1017/S0030605319000723 Downloaded from https://www.cambridge.org/core. IP address: 46.4.80.155, on 04 Feb 2021 at 19:45:03, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1017/S0030605319000723
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