First published online May 24, 2004
Journal of Experimental Biology 207, 2215-2220 (2004)
Published by The Company of Biologists 2004
doi: 10.1242/jeb.01013
Negative effects of early developmental stress on yolk testosterone levels in a passerine bird
Diego Gil1,*,
Claudia Heim2,
Elena Bulmer1,
Milagros Rocha3,
Marisa Puerta3 and
Marc Naguib2
1 Departamento de Ecología Evolutiva, Museo Nacional de Ciencias
Naturales (CSIC), José Gutiérrez Abascal 2, 28006 Madrid,
Spain
2 Department of Animal Behaviour, Universität Bielefeld, PO Box 100
131, 33501 Bielefeld, Germany
3 Departamento de Fisiología (Fisiología Animal II), Facultad
de Biología, Universidad Complutense de Madrid, 28040 Madrid,
Spain

View larger version (15K):
[in a new window]
|
Fig. 1. Differences in yolk testosterone concentration between zebra finch females
raised as nestlings in small, medium and large brood sizes. Data shown are
least-square means ± 1 S.E.M. from the full model, which
includes female brood size, laying order and clutch size.
|
|

View larger version (12K):
[in a new window]
|
Fig. 2. Relationship between laying order and yolk testosterone concentration.
|
|

View larger version (14K):
[in a new window]
|
Fig. 3. Relationship between clutch size and yolk testosterone concentration. Data
shown are least-square means ± 1 S.E.M. from the full model,
which includes female brood size, laying order and clutch size.
|
|

CiteULike
Complore
Connotea
Del.icio.us
Digg
Reddit
Technorati
Twitter What's this?
© The Company of Biologists Ltd 2004