Diet and reproductive biology of the viviparous lizard Sceloporus torquatus torquatus (Squamata : Phrynosomatidae)

The reproductive cycle and diet of a population of the viviparous lizard Sceloporus torquatus torquatus from the Pedregal de San Angel, Distrito Federal, Mexico, were studied. Ovarian activity began in June,and by October, one to five preovulatory follicles per ovary were present Ovulation took plac...

ver descrição completa

Detalhes bibliográficos
Autores: Ortiz, MF, de Oca, ANM, Ugarte, IHS
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2001
País:México
Recursos:Universidad Nacional Autónoma de México
Repositório:Sistema de Información de la Facultad de Ciencias, UNAM
OAI Identifier:oai:repositorio.fciencias.unam.mx:11154/2566
Acesso em linha:http://hdl.handle.net/11154/2566
Access Level:Acceso aberto
Palavra-chave:Zoology
Descrição
Resumo:The reproductive cycle and diet of a population of the viviparous lizard Sceloporus torquatus torquatus from the Pedregal de San Angel, Distrito Federal, Mexico, were studied. Ovarian activity began in June,and by October, one to five preovulatory follicles per ovary were present Ovulation took place in November and December, and parturition occurred in late April or early May. Relative titter and egg masses were higher at the end of development than at the beginning. Testes increased in size from June through September, when they reached their maximum volume and weight Testicular regression began at this point and was particularly accentuated in October and November. The diet of both sexes was composed primarily of insects

Registros relacionados