How to not inflate population estimates? Spatial density distribution of white-lipped peccaries in a continuous Atlantic forest

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dc.contributor.authorNorris, D. [UNESP]
dc.contributor.authorRocha-Mendes, F. [UNESP]
dc.contributor.authorde Barros Ferraz, S. Frosini
dc.contributor.authorVillani, J. P.
dc.contributor.authorGaletti, Mauro [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionNeotrop Inst Res & Conservat
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.contributor.institutionNucleo Santa Virginia
dc.date.accessioned2013-09-30T18:48:29Z
dc.date.accessioned2014-05-20T13:57:42Z
dc.date.available2013-09-30T18:48:29Z
dc.date.available2014-05-20T13:57:42Z
dc.date.issued2011-10-01
dc.description.abstractIn a world with poor biological inventorying and rapid land-use change, predicting the spatial distribution of species is fundamental for the effective management and conservation of threatened taxa. However, on a regional scale, predicting the distribution of rare terrestrial mammals is often unreliable and/or impractical, especially in tropical forests. We apply a recently developed analytic process that integrates density estimation (kernel smoothing), niche-analysis and geostatistics (regression-kriging) to model the occupancy and density distribution of a threatened population of white-lipped peccaries Tayassu pecari in a Brazilian Atlantic forest. Locations (n = 45) within a protected area of the Serra-do-Mar state park were obtained from diurnal line transect census (233 km), camera-trapping (751 camera-trap days) and surveys (4626 km) conducted by park rangers. Niche modelling (environmental niche-factor analysis and MAXENT) revealed a restricted niche compared with the available habitat as defined by seven environmental variables. From the occupancy model obtained from regression-kriging, we found that 72% of a 170km(2) protected area is likely to be used by peccaries. We demonstrate that the distribution of large mammals can be restricted within continuous areas of Atlantic forest and therefore population estimates based on the size of protected areas can be overestimated. Our findings suggest that the generation of realized density distributions should become the norm rather than the exception to enable conservation managers and researchers to extrapolate abundance and density estimates across continuous habitats and protected areas.en
dc.description.affiliationUniv Estadual Paulista, Dept Ecol, Lab Biol Conservacao, BR-13506900 Rio Claro, SP, Brazil
dc.description.affiliationNeotrop Inst Res & Conservat, Curitiba, PR, Brazil
dc.description.affiliationUniv São Paulo, Escola Super Agr Luiz de Queiroz, Dept Ciencias Florestais, Piracicaba, SP, Brazil
dc.description.affiliationNucleo Santa Virginia, Sao Luiz de Paraitinga, SP, Brazil
dc.description.affiliationUnespUniv Estadual Paulista, Dept Ecol, Lab Biol Conservacao, BR-13506900 Rio Claro, SP, Brazil
dc.description.sponsorshipFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.description.sponsorshipIdFAPESP: 07/03392-6
dc.description.sponsorshipIdFAPESP: 07/00613-1
dc.format.extent492-501
dc.identifierhttp://dx.doi.org/10.1111/j.1469-1795.2011.00450.x
dc.identifier.citationAnimal Conservation. Malden: Wiley-blackwell, v. 14, n. 5, p. 492-501, 2011.
dc.identifier.doi10.1111/j.1469-1795.2011.00450.x
dc.identifier.issn1367-9430
dc.identifier.lattes3431375174670630
dc.identifier.urihttp://hdl.handle.net/11449/20564
dc.identifier.wosWOS:000296894900007
dc.language.isoeng
dc.publisherWiley-Blackwell
dc.relation.ispartofAnimal Conservation
dc.relation.ispartofjcr2.889
dc.relation.ispartofsjr1,523
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAtlantic foresten
dc.subjectENFAen
dc.subjectMAXENTen
dc.subjectpresence onlyen
dc.subjectprotected area managementen
dc.subjectspatial predictionen
dc.subjectspecies distribution monitoringen
dc.subjectTayassu pecarien
dc.titleHow to not inflate population estimates? Spatial density distribution of white-lipped peccaries in a continuous Atlantic foresten
dc.typeArtigo
dcterms.licensehttp://olabout.wiley.com/WileyCDA/Section/id-406071.html
dcterms.rightsHolderWiley-blackwell
unesp.author.lattes3431375174670630
unesp.author.orcid0000-0003-0015-8214[1]
unesp.author.orcid0000-0003-1808-5420[3]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências, Rio Claropt

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Artigos - Biologia - IBRC