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Testosterone and Triiodothyronine in Franklin's Gull (Leucophaeus pipixcan) Eggs

Ethan T. Boertje, Auteur ; Nicole M. Snyder, Auteur ; Wendy L. Reed, Auteur ; Jeffrey D. Kittilson, Auteur ; Mark E. Clark, Auteur

Dans Waterbirds (42(3) September, 2019)

Maternally derived hormones are known to influence the growth and development of offspring. The differential deposition of these maternally derived hormones into egg yolk is one way by which females can alter their chicks' growth or survival. Yo[...]

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Age, nest initiation, and demographic characteristics of American White Pelicans (Pelecanus erythrorhynchos) breeding at Marsh Lake, Minnesota

Mark E. Clark, Auteur ; Jon J. (Jeff) DiMatteo, Auteur

Dans Wilson Journal of Ornithology (The) (130(4) December, 2018)

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Growth and Development of American White Pelican (Pelecanus erythrorhynchos) Chicks at Marsh Lake, Minnesota, USA

Jon J. DiMatteo, Auteur ; Mark E. Clark, Auteur

Dans Waterbirds (40(3) 09/2017)

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Maternal resource variation across the laying sequence in Canada geese Branta canadensis maxima

Todd A. Boonstra, Auteur ; Mark E. Clark, Auteur ; Wendy L. Reed, Auteur

Dans Journal of Avian Biology (40(5) SEP 2009)

Variation in maternal investments to offspring presumably reflects an optimization of resource allocation such that a female's fitness is maximized. In birds, both egg size and yolk constituents are examples of resources that can vary among offs[...]

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