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Threats to Brazilian crocodilian populations

Published online by Cambridge University Press:  24 April 2009

P. Brazaitis
Affiliation:
Central Park Wildlife Center, 830 Fifth Ave, New York, NY 10021, USA.
George H. Rebêlo
Affiliation:
Instituto de Pesquisas da Amazônia, Depart. Ecologia, CXP 478, 69.000, Manaus-AM, Brazil.
Carlos Yamashita
Affiliation:
Rua Voluntaries da Patria 3714, CEP 02402, São Paulo, SP, Brazil.
Elizabeth A. Odierna
Affiliation:
Montefiore Medical Center, 111 E 210th St, Bronx, NY 10467, USA.
Myrna E. Watanabe
Affiliation:
Biological Sciences, Old Dominion University, Norfolk, VA 23529, USA.
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Abstract

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Brazilian crocodiles are threatened by gold mining and related mercury- and lead-contamination of animals and their habitat, deforestation, increasing use of land for agriculture and destructive forestry, increased human incursions, and commercial and subsistence hunting for skins and meat. Contaminated meat is consumed by local people and miners, and meat and skins are exported to global markets. Already depleted black caiman Melanosuchus niger populations are seriously affected.

Type
Research Article
Copyright
Copyright © Fauna and Flora International 1996

References

Aguirre, A. 1956. Contribuicao Pará o estudo da biologia do jacare-acu Melanosuchus niger (Spix). Ministerio da Agricultura, Divisao de Caca e Pesca, Rio de Janeiro, Brazil.Google Scholar
Anon. 1992. Mercury used by mines contaminates two villages. The Rainforest Foundation, 10 07.Google Scholar
Bates, H.W. 1864. The Naturalist on the River Amazon, Everyman's Library. John Murray Publishers, London and New York.Google Scholar
Brazaitis, P. 1973. The identification of living crocodilians. Zoologica, 58, 59101.Google Scholar
Brazaitis, P. 1989. The trade in crocodilians. In Crocodiles and Alligators (ed. Ross, A.), pp. 196201. Weldon Owen Pty Ltd, NSW, Australia.Google Scholar
Brazaitis, P. 1990. Trade in crocodilian hides and products in the United States. TRAFFIC USA, 10 (2), 45.Google Scholar
Brazaitis, P., Yamashita, C. and Rebêlo, G. 1988. CITES Central South American caiman study. Phase I: Central and Southern Brazil. Preliminary report to the CITES Secretariat.Google Scholar
Brazaitis, P., Yamashita, C. and Rebêlo, G. 1990. A summary report of the CITES central South America caiman study. Phase I: Brazil. In Crocodiles. Proc. 9th. Working Meeting of the Crocodile Specialist Group, 1, 100115. IUCN, Gland, Switzerland (unedited).Google Scholar
Brazaitis, P., Rebêlo, G. and Yamashita, C. 1992. The WWF/TRAFFIC USA Survey of Brazilian Amazonia Crocodilians: Survey Period July 1988 to January 1992. Unpublished report.Google Scholar
Brazaitis, P., Rebêlo, G. and Yamashita, C. 1996. In press. The status of Caiman crocodilus crocodilus and Melanosuchus niger populations in the Amazonian regions of Brazil. Amphibia-Reptilia.Google Scholar
Carvalho, A.L. 1951. Os Jacarés do Brasil. Arquivos do Museu Nacional (Rio de Janeiro), 42 (1), 125139.Google Scholar
Cook, R.A., Behler, J. and Brazaitis, P. 1989. Elevated heavy metal concentrations in captive crocodilians. Proc. Annu. Meet. Am. Assoc. Zoo Vet. WR217, 151.Google Scholar
Gaski, L. and Hemley, G. 1988. The ups and downs of the crocodilian skin trade. TRAFFIC USA, 8 (1), 114.Google Scholar
Herron, J.C. 1985. Population status, spatial relations, growth, and injuries in black and spectacled caiman in Cocha Cashu. BA thesis. Princeton University Princeton, NJ.Google Scholar
Hoffmann, R. 1994. Winning gold. American Scientist, 82 (1), 1517.Google Scholar
Malm, O., Pfeiffer, W.C., Souza, C.M.M. and Reuther, R. 1990. Mercury pollution due to gold mining in the Madeira River basin, Brazil. Ambio, 19, 1115.Google Scholar
Medem, F. 1983. Los Crocodylia de Sur America. Vol. 2. Universidad Nacional de Colombia and Colciencias, Bogotá, Colombia.Google Scholar
Odierna, E. Unpublished. The occurrence of lead in Brazilian caiman as determined by atomic absorption spectrometry: a potential ecological disaster. MSc thesis. Department of Biology, Manhattan College, Bronx, New York.Google Scholar
Plotkin, M., Medem, F., Mittermeier, R.A. and Constable, I.D. 1983. Distribution and conservation of the black caiman (Melanosuchus niger). In Advances in Herpetology and Evolutionary Biology (eds Rhodin, A. G. J. and Miyata, K.), pp. 695705. Museum of Comparative Zoology, Cambridge, Mass.Google Scholar
Rebêlo, G. and Magnusson, W.E. 1983. An analysis of the effect of hunting on Caiman crocodilus and Melanosuchus niger, based on the size of confiscated skins. Biol. Cons. 26, 95104.Google Scholar
Roeper, N. and Hemley, G. 1984. Crocodile and alligator trade by the United States. In Crocodiles: Proceedings 6th Working Meeting of the Crocodile Specialist Group, pp. 122147. IUCN, Gland, Switzerland.Google Scholar
Thorbjarnarson, J. 1992. Crocodiles: An Action Plan for their Conservation. IUCN, Gland, Switzerland.Google Scholar
Walsh, D., Berger, B.L. and Bean, J.R. 1977. Residues in fish, wildlife and estuaries. Mercury, arsenic, lead, cadmium and selenium residues in fish, 1971–73. National pesticide monitoring program. Pesticides Monitoring Journal, 11, 534.Google Scholar
Yanosky, A.A. 1994. A population of Caiman latirostris at 800 m above sea level. Bull. of the Maryland Herpetological Society, 30 (3), 108113.Google Scholar