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      Medium and large sized mammals of a semideciduous forest remnant in southern Brazil Translated title: Mamíferos de médio e grande porte de um remanescente de Floresta Estacional Semidecidual no sul do Brasil

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          Abstract

          Knowledge about mammals of the Atlantic Forest is still lacking, especially because some places remain poorly studied or inventoried, which makes conservation initiatives difficult. We aimed to determine the species richness and composition of medium and large sized mammals in a semideciduous forest remnant, Morro do Coco, thus contributing information about the occurrence of mammalian fauna in the metropolitan region of Porto Alegre, southern Brazil. The methods consisted of interviews with local inhabitants, visual records and sand plot analysis. The study took place from July 2008 to April 2009, with monthly expeditions of three days. Sixteen species of mammals were recorded, seven of which are threatened with extinction in Rio Grande do Sul and one nationally. The predominant trophic group was the frugivorous/herbivorous. The study area is situated in a prioritized zone for the conservation of mammals in Greater Porto Alegre, since it consists of one of the last remnants where the phytophysionomies that originally occupied the edge of Guaiba Lake and granite hills of the region are represented and preserved.

          Translated abstract

          O conhecimento sobre a mastofauna da Mata Atlântica é ainda insuficiente, especialmente porque restam locais pouco estudados ou mal inventariados, o que dificulta iniciativas de conservação. Teve-se, como objetivos, conhecer a riqueza e a composição de espécies de mamíferos de médio e grande porte em um remanescente de Floresta Estacional Semidecidual, o Morro do Coco, contribuindo, assim, com informações sobre a ocorrência da mastofauna na região metropolitana de Porto Alegre, sul do Brasil. A metodologia consistiu de entrevistas com moradores locais, registros visuais e parcelas de areia. O estudo transcorreu de julho de 2008 a abril de 2009, com expedições mensais de três dias. Foram registradas 16 espécies de mamíferos, sete das quais estão ameaçadas de extinção no Rio Grande do Sul e uma nacionalmente. O grupo trófico predominante foi o de frugívoros/herbívoros. A área de estudo situa-se em uma zona prioritária à conservação da mastofauna na Grande Porto Alegre, por ser um dos últimos remanescentes onde estão representadas e preservadas as fitofisionomias que originalmente ocupavam a orla do Lago Guaíba e os morros graníticos da região.

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          Density and Population Size of Mammals in Remnants of Brazilian Atlantic Forest

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            Biodiversity indicators based on trends in conservation status: strengths of the IUCN Red List Index.

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              Diet of crab-eating fox, Cerdocyon thous (Linnaeus) (Carnivora, Canidae), in a suburban area of southern Brazil

              The crab-eating fox, Cerdocyon thous (Linnaeus, 1766), is a small canid with twilight and nocturnal habits from savannas and forests of South America. In this study, we seasonally determined and quantified the diet of C. thous in Lami Biological Reserve, a conservation unit with 179.78ha situated in a suburban area in the municipality of Porto Alegre, southern Brazil. During the year 2000, we collected 80 fecal samples - 20 for each season - in two or three week sampling intervals, along trails inside the Reserve. Samples were dried in an oven for 24h at 60ºC, immersed in 70% alcohol, and prey items were identified using a stereomicroscope. The diet of the crab-eating fox was essentially carnivorous (87.62% composed by vertebrates), with seasonal variation (p = 0.0009) and absence of fruits. Small non-flying mammals and birds were the most frequent prey, being proportionally more preyed in autumn and summer, respectively. Arthropods were more preyed in winter and spring and bird/reptile eggs only in summer and spring, in the reproduction period of these groups.
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                Author and article information

                Journal
                bn
                Biota Neotropica
                Biota Neotrop.
                Instituto Virtual da Biodiversidade | BIOTA - FAPESP (Campinas, , Brazil )
                1676-0611
                September 2012
                : 12
                : 3
                : 239-245
                Affiliations
                [01] Porto Alegre RS orgnameUniversidade Federal do Rio Grande do Sul orgdiv1Instituto de Biociências orgdiv2Departamento de Zoologia Brasil
                [02] Canoas RS orgnameCentro Universitário La Salle orgdiv1Pós-graduação e Pesquisa orgdiv2Laboratório de Manejo de Fauna Brasil
                Article
                S1676-06032012000300023 S1676-0603(12)01200323
                10.1590/S1676-06032012000300023
                e24e64e1-54d2-48b9-ac93-44f3d22a0b22

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

                History
                : 03 November 2011
                : 03 August 2012
                : 30 June 2012
                Page count
                Figures: 0, Tables: 0, Equations: 0, References: 56, Pages: 7
                Product

                SciELO Brazil

                Categories
                Inventories

                mastofauna,sand plots,Atlantic Forest Domain,tracks,mammalian fauna,registros visuais,parcelas de areia,Domínio da Mata Atlântica,pegadas,visual records

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