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The impact of forest logging and fragmentation on carnivore species composition, density and occupancy in Madagascar's rainforests

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dc.contributorVirginia Techen
dc.contributor.authorGerber, B. D.en
dc.contributor.authorKarpanty, Sarah M.en
dc.contributor.authorRandrianantenaina, J.en
dc.contributor.departmentFish and Wildlife Conservationen
dc.date.accessed2014-07-15en
dc.date.accessioned2014-07-21T15:49:41Zen
dc.date.available2014-07-21T15:49:41Zen
dc.date.issued2012-07en
dc.description.abstractForest carnivores are threatened globally by logging and forest fragmentation yet we know relatively little about how such change affects predator populations. This is especially true in Madagascar, where carnivores have not been extensively studied. To understand better the effects of logging and fragmentation on Malagasy carnivores we evaluated species composition, density of fossa Cryptoprocta ferox and Malagasy civet Fossa fossana, and carnivore occupancy in central-eastern Madagascar. We photographically-sampled carnivores in two contiguous (primary and selectively-logged) and two fragmented rainforests (fragments <2.5 and <15 km from intact forest). Species composition varied, with more native carnivores in the contiguous than fragmented rainforests. F. fossana was absent from fragmented rainforests and at a lower density in selectively-logged than in primary rainforest (mean 1.38 +/- SE 0.22 and 3.19 +/- SE 0.55 individuals km(-2), respectively). C. ferox was detected in fragments <2.5 km from forest and had similar densities in primary and selectively-logged forests (0.12 +/- SE 0.05 and 0.09 +/- SE 0.04 adults km(-2), respectively) but was absent in fragments >15 km from forest. We identified only two protected areas in Madagascar that may maintain >300 adult C. ferox. Occupancy of broad-striped mongoose Galidictis fasciata was positively related to fragment size whereas occupancy of ring-tailed mongoose Galidia elegans elegans was negatively associated with increasing exotic wild cat (Felis spp.) activity at a camera site. Degraded rainforest fragments are difficult environments for Malagasy carnivores to occupy; there is a need to prioritize the reconnection and maintenance of contiguous forest tracts.en
dc.description.sponsorshipVirginia Techen
dc.description.sponsorshipNational Geographic Society Committee on Research and Explorationen
dc.description.sponsorshipSigma Xi Virginia Tech Masters Degree and Grants-in-Aid Awardsen
dc.description.sponsorshipNational Science Foundation Graduate Research Fellowship Programmeen
dc.description.sponsorshipBurd Sheldon McGinnes Graduate Fellowshipen
dc.identifier.citationGerber, B. D.; Karpanty, S. M.; Randrianantenaina, J., "The impact of forest logging and fragmentation on carnivore species composition, density and occupancy in Madagascar's rainforests," Oryx 46(3), 414-422, 2012. DOI: 10.1017/s0030605311001116en
dc.identifier.doihttps://doi.org/10.1017/s0030605311001116en
dc.identifier.issn0030-6053en
dc.identifier.urihttp://hdl.handle.net/10919/49647en
dc.identifier.urlhttp://journals.cambridge.org/action/displayAbstract?fromPage=online&aid=8641182&fulltextType=RA&fileId=S0030605311001116en
dc.language.isoen_USen
dc.publisherCambridge University Pressen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectcryptoprocta feroxen
dc.subjecteupleridaeen
dc.subjectfossaen
dc.subjectmadagascaren
dc.subjectmalagasy civeten
dc.subjectmongooseen
dc.subjectpopulation-densityen
dc.subjectcamera trapsen
dc.subjectconservationen
dc.subjecteupleridaeen
dc.subjectbiodiversity conservationen
dc.subjectecologyen
dc.titleThe impact of forest logging and fragmentation on carnivore species composition, density and occupancy in Madagascar's rainforestsen
dc.title.serialOryxen
dc.typeArticle - Refereeden

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