%0 Journal Article
%T On the habitat occupancy of some neotropical jays in South America, genus Cyanocorax Sobre a ocupa  o de habitat de algumas gralhas neotropicais na Am¨¦rica do Sul, g¨ºnero Cyanocorax
%A Luiz dos Anjos
%A Oscar Akio Shibatta
%J Semina : Ci¨ºncias Biol¨®gicas e da Sa¨²de
%D 2010
%I Universidade Estadual de Londrina
%X In this study, the habitat occupancy by ten jay species of genus Cyanocorax is evaluated taking into account the morphometric measurements of the species. Five measurements were gotten from 247 museums specimens: total length, wing, tail, bill, and tarsus. Canonical analyzes of the gotten measurements revealed the existence of two distinct groups among the analyzed jays. A group is composed by species with proportionally long wings, which tends to occupy open habitats, as grassland, cerrado and, pantanal: C. violaceus, C. cyanomelas, C. caeruleus, and C. cristatellus. Another group is composed by species with proportionally long tails and that inhabits forest or scrub habitats, as the Atlantic and Amazonian forests and the caatinga: C. affinis, C. mystacalis, C. cayanus, C. heilprini, C. chrysops and C. cyanopogon. Data from literature suggests that the species follow those occupancy tendencies even when they are sympatric in one locality. Neste estudo, a ocupa  o de habitat por dez esp¨¦cies de gralhas do g¨ºnero Cyanocorax ¨¦ avaliada levando em considera  o as medidas morfom¨¦tricas das esp¨¦cies. Cinco medidas foram obtidas de 247 esp¨¦cimes de museus: comprimento total, cauda, asa, bico, e tarso. An¨¢lise can nica das medidas obtidas revelou a exist¨ºncia de dois grupos distintos dentre as gralhas analisadas. Um grupo ¨¦ formado por esp¨¦cies com asa proporcionalmente longa, o qual tende a ocupar habitats abertos, como campo, cerrado e pantanal: C. violaceus, C. cyanomelas, C. caeruleus, e C. cristatellus. O outro grupo ¨¦ formado por esp¨¦cies de cauda proporcionalmente longa, e que habita especialmente habitats florestais ou arbustivos, como as florestas atlantica e amaz nica e a caatinga: C. affinis, C. mystacalis, C. cayanus, C. heilprini, C. chrysops e C. cyanopogon. Dados da literatura sugerem que as esp¨¦cies seguem estas tend¨ºncias de ocupa  o mesmo quando elas s o simp¨¢tricas em uma localidade.
%K Ocupa  o
%K Habitat
%K Morfometria multivariada.
%U http://www.uel.br/revistas/uel/index.php/seminabio/article/view/8797