Plasma DHEA levels in wild, territorial red squirrels: seasonal variation and effect of ACTH
In many species, territorial behavior is limited to the breeding season and is tightly coupled
to circulating gonadal steroid levels. In contrast, both male and female red squirrels
(Tamiasciurus hudsonicus) are highly aggressive in both the breeding and non-breeding
seasons in defense of food stores on their individual territories throughout the boreal and
northern forests of North America. Dehydroepiandrosterone (DHEA), an androgen
precursor, is secreted from the adrenal cortex in some mammals, and DHEA has been …
to circulating gonadal steroid levels. In contrast, both male and female red squirrels
(Tamiasciurus hudsonicus) are highly aggressive in both the breeding and non-breeding
seasons in defense of food stores on their individual territories throughout the boreal and
northern forests of North America. Dehydroepiandrosterone (DHEA), an androgen
precursor, is secreted from the adrenal cortex in some mammals, and DHEA has been …
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