Morcegos (Mammalia: Chiroptera) da região do Médio Rio Teles Pires, Sul da Amazônia, Brasil

Abstract

A Amazônia é a maior floresta tropical do mundo e pelo menos 147 espécies de morcegos ocorrem neste ambiente. A despeito desta grande riqueza, a diversidade de morcegos da Amazônia é pobremente conhecida e existem grandes lacunas neste conhecimento. O objetivo do presente trabalho foi descrever a assembleia de morcegos ocorrentes na região do Médio Teles Pires (MTP), no sul da Amazônia. Além disso, avaliou-se a similaridade dessa assembleia em relação a 14 assembleias estudadas em outras localidades amazônicas e avaliou-se a correlação entre as similaridades destas localidades e suas distâncias. Trinta e três espécies de morcegos foram registradas, representando 71% das espécies estimadas (Jackknife2). As três espécies com maior abundância relativa foram: Carollia perspicillata, Pteronotus parnellii e Phyllostomus hastatus que somadas contam com mais de 50% das capturas. O grupo funcional dos frugívoros obteve o maior número de espécies capturadas. Foi encontrada uma correlação negativa entre as distâncias e as similaridades das assembleias de morcegos amazônicos (r = -0,22; p = 0,014). A distância geográfica pode explicar apenas 6% da similaridade entre as assembleias analisadas, ainda assim, as similaridades destas assembleias permitem que as mesmas sejam agrupadas por suas distâncias geográficas. Além disso, a fauna de morcegos do MTP é diferenciada de outras áreas da Amazônia o que lhe confere um papel especial na conservação dos morcegos amazônicos. PALAVRAS-CHAVE: Chiroptera, Inventário de fauna, Assembleias, Biodiversidade. Bats (Mammalia: Chiroptera) from the Middle Teles Pires River region, Southern Amazonia, Brazil ABSTRACTAmazonia is the largest tropical rainforest in the world and at least 147 bat species occur in this environment. Despite its richness, the diversity of bat fauna is poorly known for this region and there are large gaps in its knowledge. This study aims to describe the bat assemblage of the Middle Teles Pires River (MTP) region, southern Amazonia. Furthermore, we evaluated the similarity of this assemblage in relation to 14 assemblages studied in other Amazonian localities, and correlations were found between the similarity values among the sites and their geographic distances. Thirty-three bat species were recorded, accounting for 71% of the estimated species richness (Jackknife2). The three species that had the higher relative abundance values were Carollia perspicillata, Pteronotus parnellii and Phyllostomus hastatus, which together accounted for more than 50% of the captures. The frugivore functional group had the highest number of recorded species. A negative correlation was found between the geographic distances and the similarities among the Amazonian bat assemblages (r = -0.22; p = 0.014). Geographic distance could explain only 6% of the similarities among the analyzed assemblages, even though, the similarity found allowed them to be grouped by their distances. Besides, the MTP bat fauna is different from other Amazonian areas, which gives it a special role in the Amazonian ba...

Extension of the known geographic distribution of Lampronycteris brachyotis (Dobson, 1879) (Mammalia, Chiroptera, Phyllostomidae): first records from the Cerrado of the Brazilian Midwest, in the state of Mato Grosso

“…There is another record from Mato Grosso, but in the Amazon biome (Figure 1), approximately 670 km north and west of the region of the present study (Miranda et al 2015). Similarly, the only other record for the Cerrado biome is from a locality in the state of Tocantins (Tavares et al 2008), about 800 km from our site.…”

“…It is not listed as threatened in Brazil (Chiarello et al 2008), although little is known about of the exact limits of its geographic distribution. In Amazonia, L. brachyotis has been recorded in five states: (1) Acre (Marciente and Calouro 2009), (2) Amazonas (Sampaio et al 2003), (3) Pará (Bernard et al 2001), (4, 5) Amapá (Martins et al 2011), and (6) Mato Grosso (Miranda et al 2015). In the Atlantic Forest, the species has been recorded in four states: (7) Espírito Santo Albuquerque 1985, 1993;Peracchi et al 2011), (8) Bahia (Faria et al 2006), (9) Paraná (Scultori et al 2009), and (10) São Paulo (Taddei and Pedro 1996).…”

Bat survey of the lower Juruena River and five new records for the state of Mato Grosso, Brazil

“…Of the total collected specimens, 82 were captured in mist nets and 33 were captured in roosts (Tables 1 and 2). Thirty-five species from five families were recorded (Table 1), which is a number slightly higher than Miranda et al (2015) (33 species and five families) for the middle Teles Pires River (MT). As in many other Amazonian bat inventories (e.g., Simmons and Voss 1998;Lim et al 2005;Miranda et al 2015) the most diverse groups recorded were frugivore phyllostomids (14 species), animalivore phyllostomids (nine species), and insectivorous emballonurids (six species).…”

“…Thirty-five species from five families were recorded (Table 1), which is a number slightly higher than Miranda et al (2015) (33 species and five families) for the middle Teles Pires River (MT). As in many other Amazonian bat inventories (e.g., Simmons and Voss 1998;Lim et al 2005;Miranda et al 2015) the most diverse groups recorded were frugivore phyllostomids (14 species), animalivore phyllostomids (nine species), and insectivorous emballonurids (six species). Among the recorded species there are five new records for the state of Mato Grosso and a range extension for the southern Amazon basin, increasing the bat diversity from 86 (Bernard et al 2011b;Louzada et al 2015) to 91 species (Table 1) for Amazonian Mato Grosso.…”

“…As a result of the few studies conducted there, northern Mato Grosso was considered to have about 11 to 22 species of bats (Miranda-Ribeiro 1914;Bernard et al 2011a). Recently, and applying a higher sampling effort, Miranda et al (2015) recorded 33 species along the middle Teles Pires River, which is a more realistic bat richness for an Amazonian site in Mato Grosso State.…”