Browsing Research Articles (Anatomy and Physiology) by Subject "Giraffe bulls"

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Age and socially related changes in fecal androgen metabolite concentrations in free-ranging male giraffes

Wolf, Tanja Esther; Schaebs, F.S.; Bennett, Nigel Charles; Burroughs, Richard E.J.; Ganswindt, Andre (Elsevier, 2018-01)

In many mammal species, androgen levels in males are elevated during periods of mating activity, often to facilitate aggressive behavior between males over access to fertile females. However, this pattern might be less ...
The impact of age-class and social context on fecal glucocorticoid metabolite levels in free-ranging male giraffes

Wolf, Tanja Esther; Bennett, Nigel Charles; Burroughs, Richard E.J.; Ganswindt, Andre (Elsevier, 2018-01)

One of the primary sources of perceived stress is the social environment of an animal and the interactions with conspecifics. An essential component of the response to a stressor is the activation of the hypothalamic–pit ...

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