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      Translated title: Medium to large-sized mammals from the Caatinga of the Rio Grande do Norte, in Northeast Brazil Translated title: Mamíferos de médio e grande porte da Caatinga do Rio Grande do Norte, nordeste do Brasil

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          Translated abstract

          Medium to large-sized mammals are the most affected by habitat loss and hunting, while at the same time playing important roles in the ecosystem. The knowledge about this group in the Caatinga, the dry tropical forest of northeastern Brazil, however, is still scarce. In this study, we carried out the first systematic survey of medium to large-sized mammals in the Rio Grande do Norte state, with camera traps installed in 188 points distributed in 10 priority areas for the conservation of the Caatinga biodiversity. With a sampling effort of 7271 camera-days, we obtained 1607 records of 14 native medium to large-sized mammals, distributed in six orders and 10 families: eight species of the order Carnivora, two species of the order Cingulata, and one species for each of the other orders (Artiodactyla, Didelphimorphia, Pilosa e Primates). The richness recorded represents a third of the 45 large and medium-sized mammal species found in the Caatinga, and half of the large and medium-sized mammal species recorded in northern Caatinga dominium, significantly increasing the knowledge about the group in the region. Among the recorded species are three threatened felids, including a large top predator (Leopardus tigrinus, Herpailurus yagouaroundi, and Puma concolor). The low number of records of some species and the absence of others indicate the critical status of the mammal fauna in the state and highlight the importance and urgency of the creation of new protected areas in the Caatinga of the Rio Grande do Norte.

          Translated abstract

          Mamíferos de médio e grande porte são especialmente afetados pela caça e perda de habitat, ao mesmo tempo que desempenham importantes funções no ecossistema. O conhecimento sobre esse grupo na Caatinga, a floresta tropical sazonalmente seca do nordeste do Brasil, contudo, ainda é escasso. Neste trabalho realizamos o primeiro levantamento sistemático de mamíferos de médio e grande porte no estado do Rio Grande do Norte, através de armadilhamento fotográfico em 188 pontos distribuídos em 10 áreas prioritárias para a conservação da biodiversidade da Caatinga. Com um esforço amostral de 7271 câmeras-dias, obtivemos 1607 registros de 14 espécies nativas, distribuídas em seis ordens e 10 famílias: oito espécies da ordem Carnivora, duas espécies da ordem Cingulata, e uma espécie para cada uma das demais ordens (Artiodactyla, Didelphimorphia, Pilosa e Primates). A riqueza encontrada representa 31% das 45 espécies de mamíferos de médio e grande porte que ocorrem na Caatinga, e 50% das espécies deste grupo registradas no domínio da Caatinga ao norte do Rio São Francisco, ampliando significativamente o conhecimento sobre o grupo na região. Entre as espécies registradas estão três felinos ameaçados de extinção, incluindo um grande predador de topo (Leopardus tigrinus, Herpailurus yagouaroundi e Puma concolor). O baixo número de registros de algumas espécies e a ausência de outras indicam o estado crítico da mastofauna do estado e sugerem a importância e urgência do estabelecimento de novas unidades de conservação na Caatinga do Rio Grande do Norte.

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          Multiple causes of high extinction risk in large mammal species.

          Many large animal species have a high risk of extinction. This is usually thought to result simply from the way that species traits associated with vulnerability, such as low reproductive rates, scale with body size. In a broad-scale analysis of extinction risk in mammals, we find two additional patterns in the size selectivity of extinction risk. First, impacts of both intrinsic and environmental factors increase sharply above a threshold body mass around 3 kilograms. Second, whereas extinction risk in smaller species is driven by environmental factors, in larger species it is driven by a combination of environmental factors and intrinsic traits. Thus, the disadvantages of large size are greater than generally recognized, and future loss of large mammal biodiversity could be far more rapid than expected.
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            Sensitivity of global terrestrial ecosystems to climate variability

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              An evaluation of camera traps for inventorying large- and medium-sized terrestrial rainforest mammals

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                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Role: ND
                Journal
                mznt
                Mastozoología neotropical
                Mastozool. neotrop.
                Sociedad Argentina para el Estudio de los Mamíferos (SAREM) (Mendoza, Mendoza, Argentina )
                0327-9383
                1666-0536
                December 2018
                : 25
                : 2
                : 345-362
                Affiliations
                [01] Lagoa Nova, Natal RN orgnameUniversidade Federal do Rio Grande do Norte orgdiv1Centro de Biociências orgdiv2Departamento de Ecologia Brasil
                Article
                S0327-93832018000200008
                8ce14f89-9c32-4661-b807-1fe88d6a737a

                This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

                History
                : 06 June 2018
                : 01 December 2017
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 88, Pages: 18
                Product

                SciELO Argentina

                Categories
                Artículo

                Camera trap,Biodiversity conservation,Seasonally dry tropical forest,Species richness,Threatened species,Armadilha fotográfica,Conservação da biodiversidade,Espécies ameaçadas,Floresta tropical sazonalmente seca,Riqueza de espécies

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