Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/19513
Título: Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest
Autor: Galatti, Ulisses
Palavras-chave: Demography
Frog
Rainforest
Reproduction
Sexual Maturity
Amazonas
Amazonia
Manaus
South America
Anura
Leptodactylus Pentadactylus
Leptodactylus Pentadactylus
Data do documento: 1992
Revista: Journal of Herpetology
É parte de: Volume 26, Número 1, Pags. 23-31
Abstract: At Manaus, Amazonas, Brazil, reproduction occurred only in September and October. Population demography was therefore characterized by the presence of discrete annual generations and a sudden increase in population density following the reproductive season. Individuals were nearly two years old at first reproduction. Survival rate was unrelated to age and relatively constant throughout the year. Food availability was highest in the late dry season and in the wet season. Mean volume of stomach contents was used to index rates of food consumption, which generally varied in concert with food availability. Size-independent, individual growth rates also varied throughout the year and were significantly correlated with rainfall, food consumption, and food availability. Seasonality in reproductive behaviour may allow recently metamorphosed juveniles to profit from predictable peaks in food availability. Prey availability, through its effect on food consumption and hence individual growth rates may influence the time that individuals take to reach sexual maturity. -from Author
DOI: 10.2307/1565017
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