Consulta: subjectFacets:"Leptodactylus fuscus"
Registros recuperados: 2
Data/hora: 02/06/2024 04:55:19

Does advertisement call variation coincide with genetic variation in the genetically diverse frog taxon currently known as Leptodactylus fuscus (Amphibia: Leptodactylidae)?
Provedor de dados: Anais da Academia Brasileira de Ciências
Autores: HEYER,W. RONALD; REID,YANA R.
The frog Leptodactylus fuscus is found throughout much of South America in open and disturbed habitats. Previous study of genetic differentiation in L. fuscus demonstrated that there was lack of genetic exchange among population units consistent with multiple species, rather than a single species. We examine advertisement vocalizations of L. fuscus to determine whether call variation coincides with genetic differentiation. Calls were analyzed for 32 individual frogs from 25 localities throughout the distributional range of L. fuscus. Although there is variation in calls among geographic samples, call variation is not concordant with genetic variation or geographic distance and the call variation observed is less than that typically found among other...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Advertisement calls; Leptodactylus fuscus; Speciation.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652003000100006

Egg-laying and foam-beating in Leptodactylus fuscus (Anura, Leptodactylidae)
Provedor de dados: Biota Neotropica
Autores: Oliveira Filho,Júlio César de; Costa,Hugo Cardoso de Moura; Braga,Úrsula Márcia Lobo.
Species of the Leptodactylus fuscus group lay their eggs in foam nests in underground chambers the males excavate. However, little is known about the interactions between males and females while egg-laying. We recorded egg-laying behavior in Leptodactylus fuscus. Observations were possible because the chambers walls were partially damaged (small holes). Within the chamber, the male holds the female in an axillary amplexus. In a typical sequence of egg-releasing/foam-beating, the male makes alternate movements of legs in a series of kicks. After a bout of foam-beating the male releases the female removing his arms from her axils. When freed by the male, the female turned a little for a new bout of beating, being seized in an axillary amplexus again. In the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Leptodactylinae frogs; Thumb asperities; Leptodactylus fuscus; Amplexus; Egg-laying behavior.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032005000300022