Abstract
At least 251 mammal species are recorded for the Brazilan cerrado, which, therefore, is the third richest Brazilian biome. Most mammal surveys in Brazilian cerrado result from studies performed opportunistically and in short time periods. The aims of the present study were (1) provide a checklist for the mammalian fauna based on a five-year sampling in Serra do Facão region, Southeastern Goiás state; (2) compare small non-flying mammals diversity in open and forest areas and (3) compare species diversity before and after the flood caused by a hydroelectric reservoir filling. The data was gathered in 19 sampling periods, from May 2008 to September 2013. We sampled open and forest habitats and captured non-flying small mammals with Sherman and Tomahawk live traps and pitfalls; bats were sampled with mist-nets; large mammals were recorded with camera traps, and by direct observations and track surveys in field. We found 20 species of small non-flying mammals, 10 species of bats and 33 species of larger mammals. Species diversity was greater for forest than open habitats, and was also greater before than after the complete reservoir filling. About 10% of the recorded species are included in the Brazilian official list of threatened species. The total richness represents 25% of all cerrado mammal fauna, highlighting the importance of this area for regional mammal fauna conservation.
Highlights
IntroductionThe mammal richness reported for the cerrado varies from 227 (Carmignotto et al 2012) to 251 species (Paglia et al 2012)
701 species of mammals are known in Brazil (Paglia et al 2012)
We recorded 63 species of mammals in the study area: 33 larger mammals, 20 small non-flying mammals and 10 bats (Table 1)
Summary
The mammal richness reported for the cerrado varies from 227 (Carmignotto et al 2012) to 251 species (Paglia et al 2012). About 40% cerrado mammals are bats (Chiroptera), 31% are rodents (Rodentia), and 10% are marsupials (Didelphimorphia) (Paglia et al 2012). The number of endemic cerrado mammals varies from 25 to 32 species depending on the authors (Carmignotto et al 2012, Paglia et al 2012). The endemism rate is slightly larger for open areas (56%), highlighting the relevance of both open and forested habitats for cerrado mammals conservation (Marinho-Filho et al 2002)
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