ABSTRACT
The state of Rio de Janeiro has a long history of bat records, dating from the time of the cinquecentist travelers. Currently, it is considered one of the most well studied Brazilian states regarding the bat fauna, but new records continue to be added each year. Here, we provide an updated checklist of bat records from Rio de Janeiro and identified the major contributors to the knowledge of the fluminense chiropterology. The list reported here includes 77 species, 43 genera, and eight families, numbers that can be considered high when compared to those currently known for the Atlantic Forest of southeastern Brazil and for the whole country. Noctilio albiventris is reported for the first time in the state of Rio de Janeiro. We conclude pointing out some directions aiming not only the consolidation of the current list, but also its improvement.
O Estado do Rio de Janeiro tem um longo histórico de pesquisas com morcegos, com registros que datam desde a época dos viajantes quinhentistas. Atualmente é considerado um dos Estados brasileiros melhor conhecidos quanto à composição de sua fauna, mas novos registros vêm sendo acrescentados a cada ano. A partir de uma revisão da literatura histórica e atual, apresentamos aqui uma lista atualizada de espécies e evidenciamos os principais responsáveis pelo desenvolvimento da quiropterologia fluminense. A lista aqui reportada inclui 77 espécies, 43 gêneros e oito famílias, números que podem ser considerados elevados, quando confrontados com os conhecidos para a Mata Atlântica do sudeste brasileiro e para todo o país. Noctilio albiventris é aqui reportada pela primeira vez para o Estado do Rio de Janeiro. São apontadas algumas direções para pesquisas futuras visando não só a consolidação da presente lista, como a sua ampliação.
ABSTRACT
The state of Rio de Janeiro has a long history of bat records, dating from the time of the cinquecentist travelers. Currently, it is considered one of the most well studied Brazilian states regarding the bat fauna, but new records continue to be added each year. Here, we provide an updated checklist of bat records from Rio de Janeiro and identified the major contributors to the knowledge of the fluminense chiropterology. The list reported here includes 77 species, 43 genera, and eight families, numbers that can be considered high when compared to those currently known for the Atlantic Forest of southeastern Brazil and for the whole country. Noctilio albiventris is reported for the first time in the state of Rio de Janeiro. We conclude pointing out some directions aiming not only the consolidation of the current list, but also its improvement.
O Estado do Rio de Janeiro tem um longo histórico de pesquisas com morcegos, com registros que datam desde a época dos viajantes quinhentistas. Atualmente é considerado um dos Estados brasileiros melhor conhecidos quanto à composição de sua fauna, mas novos registros vêm sendo acrescentados a cada ano. A partir de uma revisão da literatura histórica e atual, apresentamos aqui uma lista atualizada de espécies e evidenciamos os principais responsáveis pelo desenvolvimento da quiropterologia fluminense. A lista aqui reportada inclui 77 espécies, 43 gêneros e oito famílias, números que podem ser considerados elevados, quando confrontados com os conhecidos para a Mata Atlântica do sudeste brasileiro e para todo o país. Noctilio albiventris é aqui reportada pela primeira vez para o Estado do Rio de Janeiro. São apontadas algumas direções para pesquisas futuras visando não só a consolidação da presente lista, como a sua ampliação.
ABSTRACT
Herein, we report the occurrence of Molossus pretiosus in the region of Jaiba, northern part of the state of Minas Gerais, southeastern Brazil. This is the second Brazilian record for this molossid, and it is the first documentation from the Caatinga biome. This bat is a common roof dweller in Jaiba, and was frequently captured in nets set near bodies of water. Numbers of individuals found at roosts were small ( 10), and included reproductively active females in a harem-like formation (single-male with multi-females). Reproductive activity was associated with the rainy season, and there was within-group synchronization of pregnancy. Specimens captured away from roosts were obtained in nets set over or adjacent to water sources in habitats ranging from anthropic fields to well preserved arboreal caatingas. A mensural analysis based on 17 specimens (12 females and 5 males) confirmed secondary sexual dimorphism (5 out of 10 variables), and revealed little size variation among localities from Brazil and Central America. M. pretiosus is similar to M. rufus but averages smaller in size. M. pretiosus is the fourth bat species that, in Brazil, is restricted to the open habitats, such as the Caatinga, Cerrado, and Pantanal that separate the forested habitats of Amazonia and Mata Atlantica.
Herein, we report the occurrence of Molossus pretiosus in the region of Jaiba, northern part of the state of Minas Gerais, southeastern Brazil. This is the second Brazilian record for this molossid, and it is the first documentation from the Caatinga biome. This bat is a common roof dweller in Jaiba, and was frequently captured in nets set near bodies of water. Numbers of individuals found at roosts were small ( 10), and included reproductively active females in a harem-like formation (single-male with multi-females). Reproductive activity was associated with the rainy season, and there was within-group synchronization of pregnancy. Specimens captured away from roosts were obtained in nets set over or adjacent to water sources in habitats ranging from anthropic fields to well preserved arboreal caatingas. A mensural analysis based on 17 specimens (12 females and 5 males) confirmed secondary sexual dimorphism (5 out of 10 variables), and revealed little size variation among localities from Brazil and Central America. M. pretiosus is similar to M. rufus but averages smaller in size. M. pretiosus is the fourth bat species that, in Brazil, is restricted to the open habitats, such as the Caatinga, Cerrado, and Pantanal that separate the forested habitats of Amazonia and Mata Atlantica.
ABSTRACT
Herein, we report the occurrence of Molossus pretiosus in the region of Jaiba, northern part of the state of Minas Gerais, southeastern Brazil. This is the second Brazilian record for this molossid, and it is the first documentation from the Caatinga biome. This bat is a common roof dweller in Jaiba, and was frequently captured in nets set near bodies of water. Numbers of individuals found at roosts were small ( 10), and included reproductively active females in a harem-like formation (single-male with multi-females). Reproductive activity was associated with the rainy season, and there was within-group synchronization of pregnancy. Specimens captured away from roosts were obtained in nets set over or adjacent to water sources in habitats ranging from anthropic fields to well preserved arboreal caatingas. A mensural analysis based on 17 specimens (12 females and 5 males) confirmed secondary sexual dimorphism (5 out of 10 variables), and revealed little size variation among localities from Brazil and Central America. M. pretiosus is similar to M. rufus but averages smaller in size. M. pretiosus is the fourth bat species that, in Brazil, is restricted to the open habitats, such as the Caatinga, Cerrado, and Pantanal that separate the forested habitats of Amazonia and Mata Atlantica.
Herein, we report the occurrence of Molossus pretiosus in the region of Jaiba, northern part of the state of Minas Gerais, southeastern Brazil. This is the second Brazilian record for this molossid, and it is the first documentation from the Caatinga biome. This bat is a common roof dweller in Jaiba, and was frequently captured in nets set near bodies of water. Numbers of individuals found at roosts were small ( 10), and included reproductively active females in a harem-like formation (single-male with multi-females). Reproductive activity was associated with the rainy season, and there was within-group synchronization of pregnancy. Specimens captured away from roosts were obtained in nets set over or adjacent to water sources in habitats ranging from anthropic fields to well preserved arboreal caatingas. A mensural analysis based on 17 specimens (12 females and 5 males) confirmed secondary sexual dimorphism (5 out of 10 variables), and revealed little size variation among localities from Brazil and Central America. M. pretiosus is similar to M. rufus but averages smaller in size. M. pretiosus is the fourth bat species that, in Brazil, is restricted to the open habitats, such as the Caatinga, Cerrado, and Pantanal that separate the forested habitats of Amazonia and Mata Atlantica.
ABSTRACT
Taddei (1973, 1980) demonstrated that feeding habits of some Neotropical fruit-eating bats, such as Chiroderma doriae has specific food requirements. As we report below, this author presented consistent evidence associating C. doriaeto fruits of Ficus, a resource that may play a keystone role in tropical forests (Terbogh, 1986, Shanahan et al. 2001). However, very few data on the feeding habits of this bat have appeared in the literature and the feeding specialization reported by Taddei (1973, 1980) has been largely overviewed (Nowak 1994, Eisenberg & Redford 1999, Shanahan et al. 2001).
ABSTRACT
Taddei (1973, 1980) demonstrated that feeding habits of some Neotropical fruit-eating bats, such as Chiroderma doriae has specific food requirements. As we report below, this author presented consistent evidence associating C. doriaeto fruits of Ficus, a resource that may play a keystone role in tropical forests (Terbogh, 1986, Shanahan et al. 2001). However, very few data on the feeding habits of this bat have appeared in the literature and the feeding specialization reported by Taddei (1973, 1980) has been largely overviewed (Nowak 1994, Eisenberg & Redford 1999, Shanahan et al. 2001).