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dc.contributor.authorNorris, Darren [UNESP]
dc.contributor.authorPitman, Nigel C.A. [UNESP]
dc.contributor.authorMartínez Gonzalez, Jerry
dc.contributor.authorTorres, Eriberto
dc.contributor.authorPinto, Fernando
dc.contributor.authorCollado, Hernán
dc.contributor.authorConcha, Wilberth
dc.contributor.authorThupa, Raúl
dc.contributor.authorQuispe, Edwin
dc.contributor.authorPérez, Jorge
dc.contributor.authorFlores del Castillo, Juan Carlos
dc.date.accessioned2013-09-30T19:33:52Z
dc.date.accessioned2014-05-20T13:57:23Z
dc.date.available2013-09-30T19:33:52Z
dc.date.available2014-05-20T13:57:23Z
dc.date.issued2011-06-01
dc.identifierhttp://dx.doi.org/10.1590/S1984-46702011000300008
dc.identifier.citationZoologia (Curitiba). Sociedade Brasileira de Zoologia, v. 28, n. 3, p. 343-350, 2011.
dc.identifier.issn1984-4670
dc.identifier.urihttp://hdl.handle.net/11449/20474
dc.description.abstractPrevious studies have demonstrated that river-based surveys can provide an inexpensive source of information for neotropical zoologists, yet little information is available to inform the application of this technique for the long term monitoring of neotropical turtle species. We aimed to fill this gap by presenting an assessment of data collected during 333 river surveys over 50 months along rivers in a newly protected area in the Peruvian Amazon. A total of 14,138 basking Podocnemis unifilis Troschel, 1848 were recorded during 13,510 km of river-based surveys. We used generalized additive models (GAMs) to explore the influence of a series of abiotic and seasonal variables on the recorded abundances at two temporal scales: monthly and per trip. Our analysis revealed that there was a significant increase in turtle abundances during the study period and we also found a significant seasonal periodicity in monthly abundances. Abiotic factors strongly influenced trip level abundances, with more individuals per kilometer recorded during sunny days in the dry season, with temperatures between 25 and 30°C. The results demonstrate that turtle populations are increasing following the establishment of the protected area and that river-based surveys are likely to be more effective when carried out within a limited set of key abiotic conditions.en
dc.description.sponsorshipConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.format.extent343-350
dc.language.isoeng
dc.publisherSociedade Brasileira de Zoologia
dc.relation.ispartofZoologia (Curitiba)
dc.sourceSciELO
dc.subjectBasking surveyen
dc.subjectconservationen
dc.subjectpopulation monitoringen
dc.subjectriver turtlesen
dc.subjectsighting ratesen
dc.titleAbiotic modulators of Podocnemis unifilis (Testudines: Podocnemididae) abundances in the Peruvian Amazonen
dc.typeArtigo
dc.contributor.institutionUniversidade Estadual Paulista (UNESP)
dc.contributor.institutionAsociación para la Conservación de la Cuenca Amazónica
dc.contributor.institutionDuke University
dc.description.affiliationUniversidade Estadual Paulista Departamento de Ecologia Laboratório de Biologia da Conservação
dc.description.affiliationAsociación para la Conservación de la Cuenca Amazónica
dc.description.affiliationDuke University Nicholas School of the Environment Center for Tropical Conservation
dc.description.affiliationUnespUniversidade Estadual Paulista Departamento de Ecologia Laboratório de Biologia da Conservação
dc.identifier.doi10.1590/S1984-46702011000300008
dc.identifier.scieloS1984-46702011000300008
dc.identifier.wosWOS:000292720500008
dc.rights.accessRightsAcesso aberto
dc.identifier.fileS1984-46702011000300008.pdf
dc.relation.ispartofsjr0,405
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