História natural e repertório acústico de dendropsophus branneri (cochran, 1948) (anura, hylidae) no Nordeste brasileiro.
In this paper we describe the acoustic repertoire, reproductive biology and analyze if there is sexual dimorphism in Dendropsophus branneri in a transition area between the Atlantic Forest and Caatinga in northeastern Brazil. During focal observations were recorded: 1) behavioral aspects of couples...
Na minha lista:
| Autor principal: | |
|---|---|
| Outros Autores: | |
| Formato: | bachelorThesis |
| Idioma: | pt_BR |
| Publicado em: |
Universidade Federal do Rio Grande do Norte
|
| Assuntos: | |
| Endereço do item: | https://repositorio.ufrn.br/handle/123456789/43302 |
| Tags: |
Adicionar Tag
Sem tags, seja o primeiro a adicionar uma tag!
|
| Resumo: | In this paper we describe the acoustic repertoire, reproductive biology and analyze if there is sexual dimorphism in Dendropsophus branneri in a transition area between the Atlantic Forest and Caatinga in northeastern Brazil. During focal observations were recorded: 1) behavioral aspects of couples or individuals, 2) the context in which the vocalizations and signals occurred, 3) place used by the male as vocalization site, and 4) air temperature. The males of D. branneri vocalized in aquatic vegetation composed by grasses. Twelve subjects performed a visual signs behavior of territorial defense and court. On three occasions the males entered physical combat. The advertisement call is composed of 2-8 pulses notes with dominant frequency ranging from 6,4 to 7,6 kHz, singing duration of 0,007 to 0,027s and the pulse emission rate from 133,3 to 666,7. Additionally, we describe other vocalizations identified as: territorial, aggressive and releasing issued in the context of combat and defense of territory. The species showed sexual dimorphism in body shape (females are larger than males), the variables that most represented these differences are: thigh length, interorbital distance and diameter of the eye. Besides the taxonomic importance, natural history studies of frogs represent an important database on the biology of these species. Although the information on the natural history of D. branneri presented here, further research is essential because studies on this species widely distributed in the Brazilian Atlantic Forest are scarce |
|---|