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| Maneyro,Raúl; Naya,Daniel E.; Rosa,Inés da; Canavero,Andrés; Camargo,Arley. |
| The diet of Leptodactylus ocellatus (L., 1758) was studied in specimens collected at Maldonado Department (Uruguay), where monthly surveys were made between August 1998 and March 2000. A total of 143 frogs were collected, measured, sexed, and dissected, to assess stomach contents. The anurans were grouped into three age classes and four categories (considering sex and capture date). The trophic amplitude for each age class and sex-season category was quantified using Shannon-Weaver Index, and the trophic niche overlap between ages and categories by using the Pianka Index. Comparisons among treatments were made by G-tests. The most important prey items were coleopterans (IRI = 2547), and significant correlations were found between predator and prey sizes.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Trophic niche; Amphibia; Leptodactylus ocellatus; Uruguay. |
| Ano: 2004 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212004000100010 |
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| Canavero,Andrés; Carreira,Santiago; Langone,José A.; Achaval,Federico; Borteiro,Claudio; Camargo,Arley; da Rosa,Inés; Estrades,Andrés; Fallabrino,Alejandro; Kolenc,Francisco; López-Mendilaharsu,M. Milagros; Maneyro,Raúl; Meneghel,Melitta; Nuñez,Diego; Prigioni,Carlos M.; Ziegler,Lucía. |
| The native species of amphibians and reptiles of Uruguay were categorized according to the IUCN Red List criteria. Out of 47 amphibian species, seven are listed as Critically Endangered (CR), five as Endangered (EN), one as Vulnerable (VU), three as Near Threatened (NT), and two as Data Deficient (DD); the remaining species are considered to be Least Concern (LC). Among the 64 species of reptiles evaluated, one is listed as Critically Endangered (CR), seven as Endangered (EN), two as Vulnerable (VU), one as Near Threatened (NT) and seven as Data Deficient (DD); the rest are considered to be Least Concern (LC). The use of these results as an additional criterion in the definition of protected areas in Uruguay will contribute towards the conservation of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Thretened species; Red List; Herpetofauna; IUCN. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000100001 |
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