Artículos de revistas
Hematological parameters and stress index in Rufous-collared Sparrows dwelling in urban environments
Fecha
2002Registro en:
Condor, Volumen 104, Issue 1, 2018, Pages 162-166
00105422
10.1650/0010-5422(2002)104[0162:HPASII]2.0.CO;2
Autor
Ruiz, Gricelda
Rosenmann, Mario
Novoa, Francisco Fernando
Sabat Kirkwood, Alejandro Pablo
Institución
Resumen
A number of wild bird species have fortuitously incorporated themselves into urban life. One of these, the Rufous-collared Sparrow (Zonotrichia capensis), dwells with seemingly similar success in urban and rural areas. Nevertheless, we found that urban Rufous-collared Sparrows have lower body weight, higher blood glucose concentration, higher proportion of heterophils (H), lower proportion of lymphocytes (L), and consequently, a larger H:L stress index, than rural ones. After two weeks of captivity rural birds developed blood characteristics that resembled those of urban birds. These indices reveal typical primary (acute), and secondary (chronic) stress characteristics in the urban birds.