Consulta: creatorFacets:"Gianuca,Dimas"
Registros recuperados: 2
Data/hora: 06/06/2024 08:09:15

Abundance, breeding and food of the Little Blue Heron Egretta caerulea (Aves, Ardeidae) in the Patos Lagoon estuary, a recently colonized area in southern Brazil
Provedor de dados: 76
Autores: Gianuca,Dimas; Gianuca,Andros T.; Vooren,Carolus M.
We document the expansion of the breeding distribution of the Little Blue Heron Egretta caerulea (Linnaeus, 1758) to 850 km beyond its previous southern limit in South America. In addition we present data on abundance, breeding biology and food of the species in the Patos Lagoon estuary, the area which the species recently colonized. The maximum abundance recorded in the breeding colony and in a nocturnal roosting site was 53 and 49 individuals respectively. Nesting occurred from September to March. Birds nested in a mixed breeding colony together with about 3,000 breeding pairs of seven other species of Pelecaniformes, in a swampy forest near the margin of the estuary. Five nests were between 1.5 and 4.3 m from the ground, on the shrub Daphnopsis racemosa...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Climate change; Herons; Reproduction; Rio Grande do Sul; Range expansion.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212012000100003

New records, distribution and status of six seabird species in Brazil
Provedor de dados: 76
Autores: Dias,Rafael Antunes; Agne,Carlos Eduardo; Gianuca,Dimas; Gianuca,Andros; Barcellos-Silveira,André; Bugoni,Leandro.
Distribution records of poorly-known species are currently the most explored theme in the Brazilian seabird literature. If properly evaluated, this kind of information can improve our knowledge on distribution, migration and status of occurrence of these species. In this note we present new records for six species of poorly-known seabirds in the Brazilian coast, reviewing distribution records and defining their status of occurrence in the country. We consider Chionis albus (Gmelin, 1789) a pseudo-vagrant in Brazil and define its status as a scarce seasonal visitor from southern South America. We present the first records of Leucophaeus atricilla (Linnaeus, 1758) for Trindade Island, and of Leucophaeus pipixcan (Wagler, 1831) for the state of Rio Grande do...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Vagrancy; Pseudo-vagrancy; Migration; Rio Grande do Sul; Trindade and Martin Vaz Islands.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212010000400013