RESUMO
We observed the mating behavior of the neck-banded snake Scaphiodontophis annulatus (a common species of colubrid in the South Pacific of Costa Rica) in the pre-montane wet forest of Las Cruces Biological Station (San Vito de Java, Costa Rica). Three S. annulatus were observed during courtship between 10-12 AM in a patch of primary forest. The two males were observed to interact with the female, but not signs of male-male agonistic interactions were observed. Their behavior includes grabbing and holding the female, copula, and biting during the copula.
El comportamiento de apareamiento es descrito para la serpiente Scaphiodontophis annulatus, una especie de colúbrido común en el Pacífico sur de Costa Rica. El comportamiento incluye capturar y sujetar a la hembra, mordiscos durante la cópula y coito. Dos machos fueron observados al interactuar con una sola hembra, pero no se detectó señales de interacciones antagónicas macho-macho.
Assuntos
Animais , Masculino , Feminino , Colubridae/fisiologia , Comportamento Sexual Animal/fisiologia , Corte , Caracteres Sexuais , Copulação/fisiologia , Costa Rica , Observação , Preferência de Acasalamento Animal/fisiologiaRESUMO
A field study was conducted in August 1974 at Bireuen, Indonesia, at the type locality of Brugia malayi from where the parasite was first described by Lichtenstein (1927) and Brug (1927), in order to determine the pattern of the microfilarial periodicity. From the results, it has been demonstrated that both the microfilariae of B. malayi as well as those of W. bancrofti in man from Bireuen area are the nocturnally periodic form. The microfilaria rates observed in the present survey were much lower than those recorded by Lichtenstein (1927) some 50 years ago in the same areas.