Articles with "brown headed" as a keyword



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Socially regulated estrogen in an eavesdropping brood parasite.

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Published in 2018 at "General and comparative endocrinology"

DOI: 10.1016/j.ygcen.2018.09.010

Abstract: Social regulation of reproductive hormones is a means by which conspecific males and females orchestrate successful reproductive efforts. We investigate whether social cues modify activity within the hypothalamic-pituitary-gonadal (HPG) axis and the specificity of this… read more here.

Keywords: socially regulated; brood; regulated estrogen; brown headed ... See more keywords
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Manipulated sex ratios alter group structure and cooperation in the brown-headed nuthatch

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Published in 2019 at "Behavioral Ecology"

DOI: 10.1093/beheco/arz030

Abstract: A biased adult sex ratio (ASR) can influence cooperative breeding behavior if the bias limits mating opportunities for the more abundant sex. We tested predictions associated with the ASR-cooperation hypothesis in the brown-headed nuthatch (Sitta… read more here.

Keywords: brown headed; biased plots; headed nuthatch; cooperation ... See more keywords
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Responses of an Endangered Songbird to an Extreme Drought Event

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Published in 2017 at "Southeastern Naturalist"

DOI: 10.1656/058.016.0207

Abstract: Abstract Given natural variation in weather conditions and increased risk of drought associated with climate change, understanding how birds respond to fluctuations in precipitation is a necessary step toward development of more-effective, long-term management strategies… read more here.

Keywords: extreme drought; drought event; drought; brown headed ... See more keywords