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A radio tracking study of home range and movements of the marsupial Micoureus demerarae (Thomas) (Mammalia, Didelphidae) in the Atlantic forest of south-eastern Brazil Zoologia
Moraes Junior,Edsel Amorim; Chiarello,Adriano Garcia.
From August 2001 to July 2002 the home range and movements of seven Micoureus demerarae (Thomas, 1905) (three males and four females) were investigated using radio tracking in the União Biological Reserve, state of Rio de Janeiro, south-eastern Brazil. A total of 436 locations was obtained and home range estimated with fixed Kernel (95% of data points), and minimum convex polygon (MCP) methods, with 100 and 95% of data points. Male home ranges estimated by MCP (100%) ranged from 5.4-24.2 ha and females from 0.3-10.7 ha. Corresponding figures calculated with Kernel (95%) were 4-10.9 ha for males and 1.3-5.9 ha for females. Animals travelled on average 423 m/night, with males travelling significantly further (582.8 m/night) than females (335.1 m/night) (t...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Kernel; Minimum convex polygon; Radio-telemetry; Small mammals; Travelling.
Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752005000100011
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Buffer zone use by mammals in a Cerrado protected area Biota Neotropica
Paolino,Roberta Montanheiro; Versiani,Natalia Fraguas; Pasqualotto,Nielson; Rodrigues,Thiago Ferreira; Krepschi,Victor Gasperotto; Chiarello,Adriano Garcia.
Habitat loss and degradation is threatening mammals worldwide. Therefore, Protected Areas (PA) are of utmost importance to preserve biodiversity. Their effectiveness, however, depends on some management strategies such as buffer zones, which prevent/mitigate the impact of external threats and might increase the amount of available habitat for wildlife existing within reserves. Nevertheless, how intensively terrestrial mammals use buffer zones remains little studied, particularly in the Neotropical region. Aiming to analyse the use of a buffer zone (5 km wide) by medium and large-sized mammals, we modelled the occupancy probabilities of five species of conservation concern including local (interior and buffer zone) as a site covariate, simultaneously...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Medium and large-sized mammals; Camera trapping; Detection probability; Occupancy; Jataí Ecological Station.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032016000200205
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Influence of camera-trap sampling design on mammal species capture rates and community structures in southeastern Brazil Biota Neotropica
Srbek-Araujo,Ana Carolina; Chiarello,Adriano Garcia.
The distribution of species and population attributes are critical data for biodiversity conservation. As a tool for obtaining such data, camera traps have become increasingly common throughout the world. However, there are disagreements on how camera-trap records should be used due to imperfect species detectability and limitations regarding the use of capture rates as surrogates for abundance. We evaluated variations in the capture rates and community structures of mammals in camera-trap surveys using four different sampling designs. The camera traps were installed on internal roads (in the first and fourth years of the study), at 100-200 m from roads (internal edges; second year) and at 500 m from the nearest internal road (forest interior; third year)....
Tipo: Info:eu-repo/semantics/article Palavras-chave: Atlantic Forest; Capture success; Detection bias; Detection probability; Mammal inventory.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000200051
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Registros de perdiz Rhynchotus rufescens (Aves, Tinamiformes, Tinamidae) no interior da Reserva Natural Vale, Linhares, Espírito Santo, sudeste do Brasil Biota Neotropica
Srbek-Araujo,Ana Carolina; Chiarello,Adriano Garcia.
A presente comunicação reporta observações de perdiz (Rhynchotus rufescens) efetuadas no interior da área florestada da Reserva Natural da Vale (RNV). A Reserva apresenta grande extensão (21.787 ha) e é coberta predominantemente por florestas primárias. Seis registros foram obtidos no período de 2005 a 2007, em locais distantes entre 70 e 5.500 m da borda florestal mais próxima, indicando que esta espécie de Cerrado está utilizando partes internas e florestadas da Reserva. Observações anteriores e relatos de outros autores já haviam confirmado a presença da perdiz em áreas abertas adjacentes à RNV e à Reserva Biológica de Sooretama, que é contígua à anterior, mas esta é a primeira vez em que a presença desta ave campestre é relatada para o interior da...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Espécie exótica; Fragmentação; Mata Atlântica.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000200023
Registros recuperados: 4
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