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Plasma corticosterone in wild starlings (Sturnus vulgaris) immediately following capture and in relation to body weight during the annual cycle.

Abstract：

:Free-living starlings (Sturnus vulgaris) were caught by mist netting. Blood samples were taken from them between 20 sec and 4 min after capture and assayed for corticosterone. Before 1 min corticosterone levels were constant (10.3 nmol litre-1) but after 1 min they increased rapidly (27.0 +/- 3.6 nmol litre-1 min-1). Male and female free-living starlings were caught throughout the year with mist nets, and traps placed in nest boxes. Blood samples were taken within 1 min of capture and body weights recorded. Plasma corticosterone varied between 3 and 13 nmol litre-1. In both sexes the level was high during winter and through the breeding season. It fell to low levels during late summer and increased again during autumn. Body weight in both sexes was highest in midwinter and lowest in midsummer but there was no correlation between body weight and plasma corticosterone concentration.

journal_name

Gen Comp Endocrinol

journal_title

General and comparative endocrinology

authors

Dawson A,Howe PD

doi

10.1016/0016-6480(83)90085-0

subject

Has Abstract

pub_date

1983-08-01 00:00:00

pages

303-8

issue

2

eissn

0016-6480

issn

1095-6840

journal_volume

51

pub_type

杂志文章

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