Non-flying mammals of Chapada Diamantina (Bahia, Brazil)

Abstract

Chapada Diamantina is located in central Bahia state, and has a large diversity of habitats, including important transitional areas, but has remained largely unstudied until now. In the present study we list the nonflying mammals of Chapada Diamantina National Park and surroundings. We captured only small non-volant mammals, medium and large mammals were assessed through indirect evidences (tracks and marks) and interviews. We recorded 58 species and 47 genera from seven Mammalian orders. Seven species are included in the list of endangered Brazilian species by IBAMA and IUCN; and other seven are classified as data-deficient. Species richness of small mammals was equivalent among sampled habitats, but species composition varied among habitats (10 in semi-deciduous forest, 9 in rocky savanna and 8 in cerrado sensu stricto), as some species are restricted by humidity to forest habitats. During four different samplings, eight species were collected only in open vegetation, four only in forests, and six in both habitats. Oligoryzomys rupestris and Gracilinanus microtarsus had its geographic range expanded. Faunal composition is similar to the one observed in the Atlantic Forest, including species from Cerrado and Caatinga. Besides, some species occupy different habitats from those previously ascribed to them. Keywords: mammal diversity, zoogeography, Cerrado, Caatinga, Atlantic Forest.PEREIRA, L.P. & GEISE, L. Mamíferos não-voadores da Chapada Diamantina (Bahia, Brasil). Biota Neotrop., 9(3): http://www.biotaneotropica.org.br/v9n3/en/abstract?article+bn03709032009.Resumo: A Chapada Diamantina está localizada na parte central do Estado da Bahia, apresentando grande diversidade de habitats, assim como áreas de transição. Seu isolamento da Mata Atlântica costeira por extensa área de vegetação aberta fazem com que seja uma região de particular interesse na compreensão dos padrões de ocorrência e evolução da mastofauna neotropical. Uma lista de mamíferos não voadores do Parque Nacional da Chapada Diamantina e arredores foi elaborada. O esforço de captura foi realizado apenas para pequenos mamíferos, assim, a sua composição e riqueza de espécies entre habitats (floresta decidual, cerrado sensu stricto e campo rupestre) foram calculadas. Visitas às coleções científicas permitiram, junto com os dados de coletas, a compilação de 58 espécies e 47 gêneros de sete ordens de mamíferos. Sete espécies estão incluídas nas listas de espécies brasileiras ameaçadas de extinção do IBAMA e do IUCN; e outras sete estão classificadas como espécies com pouco conhecimento. A riqueza de espécies de pequenos mamíferos foi equivalente entre os habitats sem relação com o esforço amostral e número de espécies coletadas (10 na floresta decidual, nove em campo rupestre e oito no cerrado sentido restrito). A composição de espécies de pequenos mamíferos variou entre habitats, já que algumas espécies são restritas a ambientes úmidos e com fitosionomia florestal. Durante os quatro períodos de captura foi observada uma maior afinidade de algu...

Mammal richness and diversity in Serra do Facão region, Southeastern Goiás state, central Brazil

“…Á guas Emendadas Ecological Station, in the Federal District, with 11,000 ha, shows similar species richness (Marinho-Filho et al 1998) to Serra do Facã o region. Other studies found between 24 and 93 species for areas of different sizes and locations in the Brazilian cerrado (Mares et al 1989, Schneider 2000, Moreira et al 2008, Pereira & Geise 2009 (Table 2).…”

“…This pattern is expected for the cerrado biome (Marinho-Filho et al 2002). Considering studies in Protected Areas of cerrado and those that make use of pitfalls in addition to conventional traps, the richness of small non-flying mammals ranged from 19 to 29 species (Schneider 2000, Marinho-Filho et al 2002, Pereira & Geise 2009, Carmignotto & Aires 2011, Bonvicino et al 2012). This richness is similar (or even large) than our study, despite our larger sample effort ( Table 2).…”

Circumscribing campo rupestre – megadiverse Brazilian rocky montane savanas

“…As for the mammals, most species inhabiting CRs are ordinarily found in other vegetation complexes in the Cerrado matrix such as the Cerrado sensu stricto (e.g., Pereira and Geise, 2009), but a few select taxa seem to be endemic or at least rarely recorded elsewhere. Mammal species possibly endemic of the CRs are usually restricted to one or a few mountain ranges of the same massif.…”

“…The only case of a mammal known exclusively from CRs is Olygoryzomys rupestris Weksler & Bonvicino, 2005, a sigmodont rodent that has been recorded so far only in widely isolated localities: Alto Paraíso, Goiás, Chapada dos Veadeiros, in Goiás state, and two scattered localities in the Chapada Diamantina, northern Espinhaço range, state of Bahia. So far this species has only been captured at high altitudes (1500m) either in CRs or on their limits with adjacent vegetation (Weksler and Bonvicino, 2005;Pereira and Geise, 2009). …”

The Taxonomic Status ofOligoryzomys mattogrossae(Allen 1916) (Rodentia: Cricetidae: Sigmodontinae), Reservoir of Anajatuba Hantavirus

“…1). In Brazil, the species has been recently reported in the states of Mato Grosso do Sul (Carmingnotto et al, 2014), São Paulo (Vivo et al, 2011), Tocantins (Di-Nizo et al, 2015, Pará , and Bahia (Pereira and Geise, 2009). Therefore, O. mattogrossae is found in the Brazilian Caatinga (Bahia, Alagoas, Pernambuco, Paraíba states) and Cerrado (Distrito Federal, São Paulo, Minas Gerais, Mato Grosso, Mato Grosso do Sul, Goiás, Tocantins, Bahia, and Maranhão states).…”