Reproductive biology of Ameerega trivittata (Anura: Dendrobatidae) in an area of terra firme forest in eastern Amazonia
The reproductive success of tropical amphibians is influenced by factors such as body size and the characteristics of breeding sites. Data on reproductive biology are important for the understanding of population dynamics and the maintenance of species. The objectives of the present study were to ex...
| Autor principal: | ACIOLI, Ellen Cristina Serrão |
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| Outros Autores: | NECKEL-OLIVEIRA, Selvino |
| Grau: | Artigo |
| Idioma: | eng |
| Publicado em: |
Museu Paraense Emilio Goeldi
2018
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| Acesso em linha: |
http://repositorio.museu-goeldi.br/handle/mgoeldi/1383 |
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ir-mgoeldi-1383 |
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ir-mgoeldi-13832019-07-17T18:23:54Z Reproductive biology of Ameerega trivittata (Anura: Dendrobatidae) in an area of terra firme forest in eastern Amazonia Biologia reprodutiva de Ameerega trivittata (Anura: Dendrobatidae) em uma área de terra firme na Amazônia Oriental ACIOLI, Ellen Cristina Serrão NECKEL-OLIVEIRA, Selvino Calling site oocyte size sexual dimorphism tadpole transportation CNPQ::CIENCIAS BIOLOGICAS::ZOOLOGIA The reproductive success of tropical amphibians is influenced by factors such as body size and the characteristics of breeding sites. Data on reproductive biology are important for the understanding of population dynamics and the maintenance of species. The objectives of the present study were to examine the abundance of Ameerega trivittata, analyze the use of microhabitats by calling males and the snout-vent length (SVL) of breeding males and females, the number of tadpoles carried by the males and mature oocytes in the females, as well as the relationship between the SVL of the female and both the number and mean size of the mature oocytes found in the ovaries. Three field trips were conducted between January and September, 2009. A total of 31 plots, with a mean area of 2.3 ha, were surveyed, resulting in records of 235 individuals, with a mean density of 3.26 individuals per hectare. Overall, 66.1% of the individuals sighted were located in the leaf litter, while 17.4% were perched on decaying tree trunks on the forest floor, 15.7% on the aerial roots of Cecropia trees, and 0.8% on lianas. Males were observed transporting a mean of 10.8 tadpoles on their backs. A significant correlation was found between the size of the females and the mean diameter of the oocytes. New data were collected on the size of oocytes and no pattern was found in the type of perches used by calling males of the different Ameerega species. O sucesso reprodutivo das espécies de anfíbios tropicais sofre influência de fatores como local de reprodução e tamanho do corpo dos reprodutores. Informações sobre a biologia reprodutiva são importantes para entender a dinâmica populacional e a manutenção das espécies. Os objetivos deste estudo foram de verificar a abundância, o uso de microhabitat por machos, o comprimento rostro-cloacal (CRC) de machos e fêmeas em atividade reprodutiva, a quantidade de girinos transportados por machos e o número de oócitos maduros por fêmea, e relacionar o número de oócitos maduros e o tamanho médio dos oócitos maduros com o CRC da fêmea. Um total de 31 parcelas foi vistoriado, tamanho médio de 2,3 ha, e um registro de 235 indivíduos, média de 3,26 por hectare. Sessenta e seis por cento dos indivíduos avistados estavam na serapilheira, 17,4% sobre troncos em decomposição no chão da floresta, 15,7% sobre raízes aéreas de Cecropia sp. e 0,8% sobre cipó. Foram observados machos transportando girinos no dorso, a média de girinos transportados foi de 10,80 por macho. A quantidade média de oócitos maduros no ovário das fêmeas foi de 20,17. Houve correlação significativa entre o diâmetro médio dos oócitos e CRC. Neste estudo obtivemos dados novos relacionados ao tamanho médio de oócitos em fêmeas ativamente reprodutivas e observamos que o tipo de sítio de vocalização usado por machos varia entre as espécies do gênero Ameerega. 2018-12-21T19:03:12Z 2018-11-29 2018-12-21T19:03:12Z 2014-05-08 Artigo de Periódico http://repositorio.museu-goeldi.br/handle/mgoeldi/1383 eng Acta amazonica Acesso Aberto application/pdf Museu Paraense Emilio Goeldi Brasil MPEG |
| institution |
Repositório Institucional - Museu Paraense Emílio Goeldi |
| collection |
RepositorioEmilioGoeldi |
| language |
eng |
| topic |
Calling site oocyte size sexual dimorphism tadpole transportation CNPQ::CIENCIAS BIOLOGICAS::ZOOLOGIA |
| spellingShingle |
Calling site oocyte size sexual dimorphism tadpole transportation CNPQ::CIENCIAS BIOLOGICAS::ZOOLOGIA ACIOLI, Ellen Cristina Serrão Reproductive biology of Ameerega trivittata (Anura: Dendrobatidae) in an area of terra firme forest in eastern Amazonia |
| topic_facet |
Calling site oocyte size sexual dimorphism tadpole transportation CNPQ::CIENCIAS BIOLOGICAS::ZOOLOGIA |
| description |
The reproductive success of tropical amphibians is influenced by factors such as body size and the characteristics of breeding sites. Data on reproductive biology are important for the understanding of population dynamics and the maintenance of species. The objectives of the present study were to examine the abundance of Ameerega trivittata, analyze the use of microhabitats by calling males and the snout-vent length (SVL) of breeding males and females, the number of tadpoles carried by the males and mature oocytes in the females, as well as the relationship between the SVL of the female and both the number and mean size of the mature oocytes found in the ovaries. Three field trips were conducted between January and September, 2009. A total of 31 plots, with a mean area of 2.3 ha, were surveyed, resulting in records of 235 individuals, with a mean density of 3.26 individuals per hectare. Overall, 66.1% of the individuals sighted were located in the leaf litter, while 17.4% were perched on decaying tree trunks on the forest floor, 15.7% on the aerial roots of Cecropia trees, and 0.8% on lianas. Males were observed transporting a mean of 10.8 tadpoles on their backs. A significant correlation was found between the size of the females and
the mean diameter of the oocytes. New data were collected on the size of oocytes and no pattern was found in the type of perches used by calling males of the different Ameerega species. |
| format |
Artigo |
| author |
ACIOLI, Ellen Cristina Serrão |
| author2 |
NECKEL-OLIVEIRA, Selvino |
| author2Str |
NECKEL-OLIVEIRA, Selvino |
| title |
Reproductive biology of Ameerega trivittata (Anura: Dendrobatidae) in an area of terra firme forest in eastern Amazonia |
| title_short |
Reproductive biology of Ameerega trivittata (Anura: Dendrobatidae) in an area of terra firme forest in eastern Amazonia |
| title_full |
Reproductive biology of Ameerega trivittata (Anura: Dendrobatidae) in an area of terra firme forest in eastern Amazonia |
| title_fullStr |
Reproductive biology of Ameerega trivittata (Anura: Dendrobatidae) in an area of terra firme forest in eastern Amazonia |
| title_full_unstemmed |
Reproductive biology of Ameerega trivittata (Anura: Dendrobatidae) in an area of terra firme forest in eastern Amazonia |
| title_sort |
reproductive biology of ameerega trivittata (anura: dendrobatidae) in an area of terra firme forest in eastern amazonia |
| publisher |
Museu Paraense Emilio Goeldi |
| publishDate |
2018 |
| url |
http://repositorio.museu-goeldi.br/handle/mgoeldi/1383 |
| _version_ |
1787135726807154688 |
| score |
11.653393 |