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Registro Completo |
Biblioteca(s): |
Embrapa Pantanal. |
Data corrente: |
01/09/2003 |
Data da última atualização: |
27/03/2017 |
Autoria: |
CAMPOS, Z. |
Afiliação: |
EMBRAPA Pantanal (Corumba, MS). |
Título: |
Caiman crocodilus yacare (Pantanal Caiman). Food related movement. |
Ano de publicação: |
2003 |
Fonte/Imprenta: |
Herpetological Reviews, v.34, n.2, p.140-141, June, 2003. |
Idioma: |
Inglês |
Conteúdo: |
Crocodilians move for many reasons (Lang 1987. In Webb, Manolis and Whitehead [Ed.], Wildlife Management: Crocodiles and Alligators, pp. 273-294. Surrey Beatty & Sons, Chipping Norton, New South Wales). Caiman crocodilus yacare occur in high densities in seasonally flooded habitats in the Brazilian Pantanal (Coutinho and Campo 1996. J. Trop. Ecol. 12:741-747), and food shortages during the dry season have the potential to influence movement. As Santos et al. (1966. Herpetol. J. 6:111-117) mentioned large number adults and tadpoles of Pseudis paradoxa (or soaps) in diet of caiman in the brackish ponds, here I report changes in caimans density potentially linked to changes in soap density in a lake in the Brazilian Pantanal. Observations were made on the Nhumirim Ranch (18 59'S, 56 40'W), Mato Grosso do Sul, Brazil over the period 1989-1999. During night surveys, caiman were counted and soap densities were estimated. One alkaline lake (pH of 9.0-9.9) generally had relatively few (10-34) caiman during each of 20 times it was surveyed. Only two surveys recorded high densities of caiman (>500), but each coincided with high densities of P. paradoxa. In each case, I estimated soap densities on the edge of the lake to be > 100 adults and large tadpoles/m2. On 10 April 1999, we marked 20 caimans of the several hundred present in the lake during the soap eruption. After 150 days, one marked female was recaptured in a river area 5 km away and the total number of caiman we detected in the lake was reduced to 20. These observations suggest that caiman move in response to change in prey density. I thank Sandra Santos and Max Pinheiro for help with surveys in 1989 and Henrique de Jesus, Jose Augusto Silva and Vandir Silva for assistance with capture of caiman. MenosCrocodilians move for many reasons (Lang 1987. In Webb, Manolis and Whitehead [Ed.], Wildlife Management: Crocodiles and Alligators, pp. 273-294. Surrey Beatty & Sons, Chipping Norton, New South Wales). Caiman crocodilus yacare occur in high densities in seasonally flooded habitats in the Brazilian Pantanal (Coutinho and Campo 1996. J. Trop. Ecol. 12:741-747), and food shortages during the dry season have the potential to influence movement. As Santos et al. (1966. Herpetol. J. 6:111-117) mentioned large number adults and tadpoles of Pseudis paradoxa (or soaps) in diet of caiman in the brackish ponds, here I report changes in caimans density potentially linked to changes in soap density in a lake in the Brazilian Pantanal. Observations were made on the Nhumirim Ranch (18 59'S, 56 40'W), Mato Grosso do Sul, Brazil over the period 1989-1999. During night surveys, caiman were counted and soap densities were estimated. One alkaline lake (pH of 9.0-9.9) generally had relatively few (10-34) caiman during each of 20 times it was surveyed. Only two surveys recorded high densities of caiman (>500), but each coincided with high densities of P. paradoxa. In each case, I estimated soap densities on the edge of the lake to be > 100 adults and large tadpoles/m2. On 10 April 1999, we marked 20 caimans of the several hundred present in the lake during the soap eruption. After 150 days, one marked female was recaptured in a river area 5 km away and the total number of caiman we detected in t... Mostrar Tudo |
Palavras-Chave: |
Caiman crocodilus yacare; Food; Movimento relacionado; Related movement; Reptile. |
Thesagro: |
Alimento; Dieta; Habitat; Jacaré; Réptil. |
Thesaurus Nal: |
Brazil; diet; Pantanal. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02468naa a2200277 a 4500 001 1810858 005 2017-03-27 008 2003 bl --- 0-- u #d 100 1 $aCAMPOS, Z. 245 $aCaiman crocodilus yacare (Pantanal Caiman). Food related movement. 260 $c2003 520 $aCrocodilians move for many reasons (Lang 1987. In Webb, Manolis and Whitehead [Ed.], Wildlife Management: Crocodiles and Alligators, pp. 273-294. Surrey Beatty & Sons, Chipping Norton, New South Wales). Caiman crocodilus yacare occur in high densities in seasonally flooded habitats in the Brazilian Pantanal (Coutinho and Campo 1996. J. Trop. Ecol. 12:741-747), and food shortages during the dry season have the potential to influence movement. As Santos et al. (1966. Herpetol. J. 6:111-117) mentioned large number adults and tadpoles of Pseudis paradoxa (or soaps) in diet of caiman in the brackish ponds, here I report changes in caimans density potentially linked to changes in soap density in a lake in the Brazilian Pantanal. Observations were made on the Nhumirim Ranch (18 59'S, 56 40'W), Mato Grosso do Sul, Brazil over the period 1989-1999. During night surveys, caiman were counted and soap densities were estimated. One alkaline lake (pH of 9.0-9.9) generally had relatively few (10-34) caiman during each of 20 times it was surveyed. Only two surveys recorded high densities of caiman (>500), but each coincided with high densities of P. paradoxa. In each case, I estimated soap densities on the edge of the lake to be > 100 adults and large tadpoles/m2. On 10 April 1999, we marked 20 caimans of the several hundred present in the lake during the soap eruption. After 150 days, one marked female was recaptured in a river area 5 km away and the total number of caiman we detected in the lake was reduced to 20. These observations suggest that caiman move in response to change in prey density. I thank Sandra Santos and Max Pinheiro for help with surveys in 1989 and Henrique de Jesus, Jose Augusto Silva and Vandir Silva for assistance with capture of caiman. 650 $aBrazil 650 $adiet 650 $aPantanal 650 $aAlimento 650 $aDieta 650 $aHabitat 650 $aJacaré 650 $aRéptil 653 $aCaiman crocodilus yacare 653 $aFood 653 $aMovimento relacionado 653 $aRelated movement 653 $aReptile 773 $tHerpetological Reviews$gv.34, n.2, p.140-141, June, 2003.
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Embrapa Pantanal (CPAP) |
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Registros recuperados : 9 | |
1. | | SANTOS, E. M. dos; AZEVEDO, B. M. de; MARINHO, A. B.; CARVALHO, A. C. P. P. de; SARAIVA, K. R. Aclimatização de mudas micropropagadas de Bastão do Imperador em diferentes volumes de recipientes. Revista Ceres, Viçosa, v. 60, n. 1, p. 134-137, 2013.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
Biblioteca(s): Embrapa Agroindústria Tropical. |
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2. | | ROCHA, E. L. J.; AZEVEDO, B. M. de; MARINHO, A. B.; CARVALHO, A. C. P. P. de; VASCONCELOS, D. V.; VIANA, T. V. de A. Aclimatização de mudas de helicônia em ambiente protegido em função do tipo de recipiente e do volume do substrato. Revista Brasileira de Horticultura Ornamental, Campinas, v. 15, n. 2, 2009. p. 159-163.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 4 |
Biblioteca(s): Embrapa Agroindústria Tropical. |
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3. | | ROCHA, E. L. J.; CARVALHO, A. C. P. P. de; AZEVEDO, B. M. de; MARINHO, A. B.; VIANA, T. V. de A.; VASCONCELOS, D. V. Aclimatização de mudas micropropagadas de helicônia em ambiente protegido em função do tipo de substrato. Ciência e Agrotecnologia, Lavras, v. 33, n. 6, p. 1457-1462, 2009.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
Biblioteca(s): Embrapa Agroindústria Tropical. |
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4. | | CARVALHO, C. M. de; VIANA, T. V. de A.; MARINHO, A. B.; LIMA JÚNIOR, L. A. de; AZEVEDO, B. M. de; SOUSA, G. G. de. Crescimento inicial do pinhão manso irrigado submetido a diferentes níveis de adubação nitrogenada. In: CONGRESSO BRASILEIRO DE MAMONA, 4.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 1., 2010, João Pessoa. Inclusão social e energia: anais. Campina Grande: Embrapa Algodão, 2010.Biblioteca(s): Embrapa Algodão. |
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5. | | LIMA, A. D.; MARINHO, A. B.; DUARTE, J. M. de L.; VIANA, T. V. de A.; AZEVEDO, B. M. de; CAMBOIM NETO, L. de F. Efeito da adubação borácica na cultura do girassol. In: CONGRESSO BRASILEIRO DE MAMONA, 4.; SIMPÓSIO INTERNACIONAL DE OLEAGINOSAS ENERGÉTICAS, 1., 2010, João Pessoa. Inclusão social e energia: anais. Campina Grande: Embrapa Algodão, 2010.Biblioteca(s): Embrapa Algodão. |
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6. | | SANTOS, E. M. dos; FERNANDEZ, V. C. M.; MARINHO, A. B.; MENEZES, S. M. DO N.; AZEVEDO, B. M. DE; CARVALHO, A. C. P. P. de. Efeito de diferentes concentrações de sais e fitorreguladores no enraizamento in vitro de mudas de antúrio. In: CONGRESSO BRASILEIRO DE FISIOLOGIA VEGETAL, 12., 2009, Fortaleza. Resumos... Fortaleza: Sociedade Brasileira de Fisiologia Vegetal, 2009. 1 CD-ROM.Tipo: Resumo em Anais de Congresso |
Biblioteca(s): Embrapa Agroindústria Tropical. |
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9. | | SANTOS, E. M. dos; AZEVEDO, B. M. de; MARINHO, A. B.; CARVALHO, A. C. P. P. de; SARAIVA, K. R.; SILVA JUNIOR, J. M. T. Effect of irrigation depths on leaf physical characteristics of micropropagated Torch Ginver. Irriga, Botucatu, v. 20, n. 4, p. 630-637, 2015.Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 2 |
Biblioteca(s): Embrapa Agroindústria Tropical. |
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Registros recuperados : 9 | |
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Nenhum registro encontrado para a expressão de busca informada. |
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