INVESTIGADORES
SIMONCINI Melina Soledad
congresos y reuniones científicas
Título:
Caiman surveys in Corrientes Province, Argentina
Autor/es:
PIÑA ,C. I.; SIMONCINI ,M.; PARACHÚ MARCÓ, M. V.; PORTELINHA, T.
Lugar:
Manila
Reunión:
Congreso; XXI Working Meeting Crocodiles Specialist Group; 2012
Institución organizadora:
Crocodiles Specialist Group - UICN
Resumen:
In this work we reported relative densities (ind./km) of Caiman latirostris and Caiman yacare in Corrientes Province, Argentina, which is one of the Provinces where there is a ranching program going on. We studied eleven differents sites. Four sites where nest harvesting occurs, three sites within Iberá Reserve where management is not allowed, and four places outside the reserve where populations are not yet managed. Since 2008 relative densities were highly variables, except in Yaguareté Corá, Galbán (harvesting), and Empedrado (not managed). The most variable number of caiman observed over time was in La Salada (not managed), Tabé, San Juan Poriahú (Iberá Reserve), and San Martín (managed). In 2009 and 2012 Corrientes had a drought period that increases relative densities. Present results did not indicate any tendency in relative densities of population due to management, but in those sites where harvesting occurs Class IV (22.3%±6.8%), and Class III + IV (63.3%±17.6%), represented a higher percentage of animals (excluding Class I) than places where there was not management (C IV=2.8%±3.3%; CIII+IV=44.8%±23.9%), actually managed sites and Iberá Reserve sites presented similar values (C IV=15.2%±11.7%; C III+IV=62.3%±11.7%). In the managed sites we have found hatchlings indicating that harvesting does not include 100% of the nests.