6 documents found, page 1 of 1
Ocelot (Leopardus pardalis) density in Central Amazonia
Rocha, Daniel Gomes da; Sollmann, Rahel; Ramalho, Emiliano Esterci; Ilha, Renata; Tan, Cedric Kai WeiOcelots (Leopardus pardalis) are presumed to be the most abundant of the wild cats throughout their distribution range and to play an important role in the dynamics of sympatric small-felid populations. However, ocelot ecological information is limited, particularly for the Amazon. We conducted three camera-trap surveys during three consecutive dry seasons to estimate ocelot density in Amanã Reserve, Central Am...
Records of the bush dog (Speothos venaticus) in Central Amazonia, Brazil
Rocha, Daniel Gomes da; Ramalho, Emiliano Esterci; Alvarenga, Guilherme Costa; Gräbin, Diogo Maia; Magnusson, William ErnestThe bush dog (Speothos venaticus) is a small Neotropical canid. Although its distribution covers the entire Amazon basin, the occurrence of bush dogs in vast areas of the Amazon remains hypothetical. The records of bush dogs presented in this study reduce a large gap in the known distribution of the species in Central Amazonia and include the 1st documentation of the species from forest seasonally flooded by bl...
Habitat use of the ocelot (Leopardus pardalis) in Brazilian Amazon
Wang, Bingxin; Rocha, Daniel Gomes da; Abrahams, Mark Ilan; Antunes, André Pinassi; Costa, Hugo C.M.; Gonçalves, André Luis SousaAmazonia forest plays a major role in providing ecosystem services for human and sanctuaries for wildlife. However, ongoing deforestation and habitat fragmentation in the Brazilian Amazon has threatened both. The ocelot is an ecologically important mesopredator and a potential conservation ambassador species, yet there are no previous studies on its habitat preference and spatial patterns in this biome. From 20...
Spatial patterns of medium and large size mammal assemblages in várzea and terr...
Alvarenga, Guilherme Costa; Ramalho, Emiliano Esterci; Baccaro, Fabricio Beggiato; Rocha, Daniel Gomes da; Ferreira-Ferreira, JeffersonVárzea forests account for 17% of the Amazon basin and endure an annual inundation that can reach 14 m deep during 6–8 months. This flood pulse in combination with topography directly influences the várzea vegetation cover. Assemblages of several taxa differ significantly between unflooded terra firme and flooded várzea forests, but little is known about the distribution of medium and large sized terrestrial ma...
Influence of pitfall designs and use of baits on the capture of small mammals i...
Rocha, Daniel Gomes da; Passamani, MarceloEach kind of trap tends to be selective on species sampled, in a way that each one only reveals part of the abundance and species richness of the community sampled. In this way, in order to know the factors that affect the success of sampling methods is crucial for a better planning of experiments and data analysis. The aim of this study was to evaluate the factors that affect the success of pitfall traps in ca...
Wild dogs at stake: Deforestation threatens the only Amazon endemic canid, the ...
Rocha, Daniel Gomes da; Barros Ferraz, Katia Maria Paschoaletto Micchi de; Gonçalves, Lucas P.; Tan, Cedric Kai Wei; Lemos, Frederico GemesioThe persistent high deforestation rate and fragmentation of the Amazon forests are the main threats to their biodiversity. To anticipate and mitigate these threats, it is important to understand and predict how species respond to the rapidly changing landscape. The short-eared dog Atelocynus microtis is the only Amazon-endemic canid and one of the most understudied wild dogs worldwide. We investigated short-ear...