Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest
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 f...
| Autor principal: | Galatti, Ulisses |
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| Grau: | Artigo |
| Idioma: | English |
| Publicado em: |
Journal of Herpetology
2020
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| Assuntos: | |
| Acesso em linha: |
https://repositorio.inpa.gov.br/handle/1/19513 |
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oai:repositorio:1-19513 |
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oai:repositorio:1-19513 Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest Galatti, Ulisses Demography Frog Rainforest Reproduction Sexual Maturity Amazonas Amazonia Brasil Manaus South America Anura Leptodactylus Pentadactylus Leptodactylus Pentadactylus 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 2020-06-15T22:09:23Z 2020-06-15T22:09:23Z 1992 Artigo https://repositorio.inpa.gov.br/handle/1/19513 10.2307/1565017 en Volume 26, Número 1, Pags. 23-31 Restrito Journal of Herpetology |
| institution |
Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional |
| collection |
INPA-RI |
| language |
English |
| topic |
Demography Frog Rainforest Reproduction Sexual Maturity Amazonas Amazonia Brasil Manaus South America Anura Leptodactylus Pentadactylus Leptodactylus Pentadactylus |
| spellingShingle |
Demography Frog Rainforest Reproduction Sexual Maturity Amazonas Amazonia Brasil Manaus South America Anura Leptodactylus Pentadactylus Leptodactylus Pentadactylus Galatti, Ulisses Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest |
| topic_facet |
Demography Frog Rainforest Reproduction Sexual Maturity Amazonas Amazonia Brasil Manaus South America Anura Leptodactylus Pentadactylus Leptodactylus Pentadactylus |
| description |
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 |
| format |
Artigo |
| author |
Galatti, Ulisses |
| title |
Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest |
| title_short |
Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest |
| title_full |
Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest |
| title_fullStr |
Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest |
| title_full_unstemmed |
Population biology of the frog Leptodactylus pentadactylus in a central Amazonian rainforest |
| title_sort |
population biology of the frog leptodactylus pentadactylus in a central amazonian rainforest |
| publisher |
Journal of Herpetology |
| publishDate |
2020 |
| url |
https://repositorio.inpa.gov.br/handle/1/19513 |
| _version_ |
1787142444707479552 |
| score |
11.755432 |