Social and life-history correlates of hormonal partner compatibility in greylag geese (Anser anser)
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چکیده
منابع مشابه
Juvenile Greylag Geese (Anser anser) Discriminate between Individual Siblings
Social species that maintain individualised relationships with certain others despite continuous changes in age, reproductive status and dominance rank between group members ought to be capable of individual recognition. Tests of "true" individual recognition, where an individual recognises unique features of another, are rare, however. Often kinship and/or familiarity suffice to explain dyadic...
متن کاملStress assessment in captive greylag geese (Anser anser).
Chronic stress--or, more appropriately, "allostatic overload"--may be physiologically harmful and can cause death in the most severe cases. Animals in captivity are thought to be particularly vulnerable to allostatic overload due to artificial housing and group makeup. Here we attempted to determine if captive greylag geese (Anser anser), housed lifelong in captivity, showed elevated levels of ...
متن کاملSocial and environmental factors modulate leucocyte profiles in free-living Greylag geese (Anser anser)
BACKGROUND Blood parameters such as haematocrit or leucocyte counts are indicators of immune status and health, which can be affected, in a complex way, by exogenous as well as endogenous factors. Additionally, social context is known to be among the most potent stressors in group living individuals, therefore potentially influencing haematological parameters. However, with few exceptions, this...
متن کاملNatural induction of spontaneous liver steatosis in Greylag Landaise geese (Anser anser).
The present experiment aimed at demonstrating that the Greylag geese (Anser anser), commonly used for the production of foie gras, are able to develop spontaneous hyperphagia and subsequent liver steatosis under specific handling conditions and without overfeeding. One hundred and eighty male geese were used in this experiment. After a period of feed restriction, at the age of 19 wk, corn was p...
متن کاملFrance as a staging and wintering area for Greylag Geese Anser anser
France is traditionally a staging area for Greylag Geese Anser anser migrating from northwest Europe to wintering sites in Spain, though increasing numbers have wintered in France over the last three decades. This paper considers sightings within France of neck-banded individuals marked elsewhere in Europe since the 1980s, to determine the origin of Greylag Geese staging and now wintering in th...
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 2009
ISSN: 1465-7279,1045-2249
DOI: 10.1093/beheco/arp164