Plasma steroid hormones in two Arctic-breeding shorebirds: Monogamy versus polygyny

Steroid hormones are predicted to vary with mating systems, degree of paternal care and aggression, as proposed in the “challenge hypothesis.” We measured plasma concentrations of testosterone (T) and 5α-dihydrotestosterone (DHT) in two high Arctic breeding and closely related shorebird species, the...

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Veröffentlicht in:	General and comparative endocrinology 2006-06, Vol.147 (2), p.133-140
Hauptverfasser:	Steiger, Silke S., Goymann, Wolfgang, Kempenaers, Bart
Format:	Artikel
Sprache:	eng
Schlagworte:	Androgens Animals Arctic Regions Birds - blood Birds - physiology Calidris Calidris melanotos Calidris pusilla Dihydrotestosterone Dihydrotestosterone - blood Female Latitudinal differences Male Mating system Nesting Behavior Paternal Behavior Pectoral sandpiper Semipalmated sandpiper Sexual Behavior, Animal Species Specificity Testosterone Testosterone - blood
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