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| Registros recuperados : 135 | |
| 38. |  | CAMPOS, Z.; SANAIOTTI, T.; MARQUES, V.; MAGNUSSON, W. E. Geographic variation in clutch size and reproductive season of the dwarf Caiman, Paleosuchus palpebrosus, in Brazil. Journal of Herpetology, v. 49, n.1, p. 95-98, 2015.| Biblioteca(s): Embrapa Pantanal. |
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| Registros recuperados : 135 | |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Pantanal. Para informações adicionais entre em contato com cpap.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Pantanal. |
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Data corrente: |
04/05/1999 |
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Data da última atualização: |
02/10/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 1 |
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Autoria: |
CAMPOS, Z.; MUNIZ, F.; MOURAO, G.; MAGNUSSON, W. E. |
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Afiliação: |
ZILCA MARIA DA SILVA CAMPOS, CPAP; FÁBIO MUNIZ, Universidade Federal do Amazonas, Manaus; GUILHERME DE MIRANDA MOURAO, CPAP; WILLIAM E. MAGNUSSON, Instituto Nacional de Pesquisa da Amazônia, Manaus. |
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Título: |
Responses of crocodilians to construction of a hydroelectric dam on the Madeira River in the Brazilian Amazon. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Herpetological Journal, v. 30, p. 215-221, oct. 2020. |
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DOI: |
https://doi.org/10.33256/hj30.4.215221 |
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Idioma: |
Português |
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Conteúdo: |
The spillways of the Santo Antônio Hydro-electric Dam on the Madeira River in Brazilian Amazonia were closed in November 2011, inundating more than 100 km of river and reducing the annual fluctuations in water level. We surveyed the crocodilians in the affected area for two years before and for eight years after dam filling in order to evaluate the effects of the dam on the size structure of the population, the distribution of each species, and the detectability of individuals to interpret changes in apparent density. Our methodology was probably not appropriate to evaluate trends in population characteristics of Paleosuchus palpebrosus or P. trigonatus, but there was little evidence of an effect of the dam on the numbers of Caiman crocodilus and Melanosuchus niger in the area, and the distributions of all caiman species along the river changed only slightly after the dam was constructed. However, the proportions of small C. crocodilus and large M. niger detected in surveys increased eight years after dam filling. Despite having detectable effects on some population characteristics, the dam does not appear to represent a threat to the persistence of the species in the area if deforestation along the banks of the reservoir can be avoided. |
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Thesagro: |
Barragem; Crocodilo; Hidrelétrica; Jacaré; Preservação da Natureza. |
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Thesaurus NAL: |
Caiman yacare; Dams (hydrology); Paleosuchus palpebrosus; Paleosuchus trigonatus. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02100naa a2200277 a 4500
001 1795567
005 2020-10-02
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.33256/hj30.4.215221$2DOI
100 1 $aCAMPOS, Z.
245 $aResponses of crocodilians to construction of a hydroelectric dam on the Madeira River in the Brazilian Amazon.$h[electronic resource]
260 $c2020
520 $aThe spillways of the Santo Antônio Hydro-electric Dam on the Madeira River in Brazilian Amazonia were closed in November 2011, inundating more than 100 km of river and reducing the annual fluctuations in water level. We surveyed the crocodilians in the affected area for two years before and for eight years after dam filling in order to evaluate the effects of the dam on the size structure of the population, the distribution of each species, and the detectability of individuals to interpret changes in apparent density. Our methodology was probably not appropriate to evaluate trends in population characteristics of Paleosuchus palpebrosus or P. trigonatus, but there was little evidence of an effect of the dam on the numbers of Caiman crocodilus and Melanosuchus niger in the area, and the distributions of all caiman species along the river changed only slightly after the dam was constructed. However, the proportions of small C. crocodilus and large M. niger detected in surveys increased eight years after dam filling. Despite having detectable effects on some population characteristics, the dam does not appear to represent a threat to the persistence of the species in the area if deforestation along the banks of the reservoir can be avoided.
650 $aCaiman yacare
650 $aDams (hydrology)
650 $aPaleosuchus palpebrosus
650 $aPaleosuchus trigonatus
650 $aBarragem
650 $aCrocodilo
650 $aHidrelétrica
650 $aJacaré
650 $aPreservação da Natureza
700 1 $aMUNIZ, F.
700 1 $aMOURAO, G.
700 1 $aMAGNUSSON, W. E.
773 $tHerpetological Journal$gv. 30, p. 215-221, oct. 2020.
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