Avaliação de populações de crocodilianos do médio Rio Trombetas, Para

Rebelo, George Henrique

doi:10.1590/S0101-81751982000100013

Resumo

A census of crocodilians was made in a lake permanently linked to the Rio Trombetas, within a Biological Reserve of the IBDF, as well as at the mouth of the River, outside the Reserve. Estimates of size and data on the localization of the animals in the environment were undertaken. Only Caiman crocodilus crocodilus was identified, in a total sample of 33 individuais, most below 1 m in total length. Even then, there were reproductive individuals in both samples.

Avaliação de populações de crocodilianos do médio Rio Trombetas, Para

George Henrique Rebelo

Instituto Brasileiro de Desenvolvimento Florestal, Divisão de Proteção à Natureza, Ed. Palácio do Desenvolvimento, sala 1204, 70.057 Brasília, D.F

ABSTRACT

A census of crocodilians was made in a lake permanently linked to the Rio Trombetas, within a Biological Reserve of the IBDF, as well as at the mouth of the River, outside the Reserve. Estimates of size and data on the localization of the animals in the environment were undertaken. Only Caiman crocodilus crocodilus was identified, in a total sample of 33 individuais, most below 1 m in total length. Even then, there were reproductive individuals in both samples.

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Dixon, J. R. & P. Soini, 1977. The Reptiles of the Upper Amazon Basin, Iquitos Region, Peru. II Crocodilians, Turtles and Snakes. Milwaukee Publ. Mus. Contrib. Biol. Geol. 12:91 pp.
Donoso Barros, R., 1966. Contribucion al Conocimento de los Cocodrilos de Venezuela. Physis 26 (71):15-32.
Gorzula, S. J., 1978. An Ecological Study of Caiman crocodilus crocodilus Inhabiting Savanna Lagoons in the Venezuelan Guayana. Oecologia 35:21-34.
Magnusson, W. E., 1979. Biological Aspects of the Conservation of Amazonian Crocodilians in Brasil. Mimeografado:13 pp.
Medem, F., 1971. Biological Isolation of Sympatric Species of South American Crocodilia. IUCN Publ. New Series Suppl. Paper 32:152-158.
MA-IBDF-FBCN. 1982a. Plano de Manejo da Reserva Biológica do Rio Trombetas. Brasília, 95 pp.
MA-IBDF-FBCN 1982b. Plano do Sistema de Unidades de Conservação do Brasil. II Etapa. Brasília. 167 pp.
RADAMBRASIL 1976. Carta Planimétrica. Folha SA-21-X-C. Escala 1:250.000.
Rocha, A. J. A. & L. F. M. Pádua, 1980. Alguns Aspectos Limnológicos do Lago do Jacaré (rio Trombetas-Pará) durante o mês de outubro. Brasil Florestal 10 (41):7-14.
Staton, M. A. & J. R. Dixon, 1977. Breeding Biology of the Spectacled caiman Caiman crocodilus crocodilus in the Venezuelan Llanos. U. S. Fish Wildl. Services, Wildl. Res. Rep. 5:21 pp.

Datas de Publicação

Publicação nesta coleção
28 Ago 2009
Data do Fascículo
1982

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[1] Dixon, J. R. & P. Soini, 1977. The Reptiles of the Upper Amazon Basin, Iquitos Region, Peru. II Crocodilians, Turtles and Snakes. Milwaukee Publ. Mus. Contrib. Biol. Geol. 12:91 pp.

[2] Donoso Barros, R., 1966. Contribucion al Conocimento de los Cocodrilos de Venezuela. Physis 26 (71):15-32.

[3] Gorzula, S. J., 1978. An Ecological Study of Caiman crocodilus crocodilus Inhabiting Savanna Lagoons in the Venezuelan Guayana. Oecologia 35:21-34.

[4] Magnusson, W. E., 1979. Biological Aspects of the Conservation of Amazonian Crocodilians in Brasil. Mimeografado:13 pp.

[5] Medem, F., 1971. Biological Isolation of Sympatric Species of South American Crocodilia. IUCN Publ. New Series Suppl. Paper 32:152-158.

[6] MA-IBDF-FBCN. 1982a. Plano de Manejo da Reserva Biológica do Rio Trombetas. Brasília, 95 pp.

[7] MA-IBDF-FBCN 1982b. Plano do Sistema de Unidades de Conservação do Brasil. II Etapa. Brasília. 167 pp.

[8] RADAMBRASIL 1976. Carta Planimétrica. Folha SA-21-X-C. Escala 1:250.000.

[9] Rocha, A. J. A. & L. F. M. Pádua, 1980. Alguns Aspectos Limnológicos do Lago do Jacaré (rio Trombetas-Pará) durante o mês de outubro. Brasil Florestal 10 (41):7-14.

[10] Staton, M. A. & J. R. Dixon, 1977. Breeding Biology of the Spectacled caiman Caiman crocodilus crocodilus in the Venezuelan Llanos. U. S. Fish Wildl. Services, Wildl. Res. Rep. 5:21 pp.