Territorial aggression does not feed back on testosterone in a multiple-brooded songbird species with breeding and non-breeding season territoriality, the European stonechat

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• 作者：Beate Apfelbeck^a ; ^b ; ^c ; ^{bea.apfelbeck@gmx.de} ; Heiner Flinks^d ; Wolfgang Goymann^a
• 关键词：Testosterone ; Gonadotropin releasing hormone ; GnRH ; Territorial behaviour ; Simulated territorial intrusion ; STI ; Male-male interactions ; Challenge hypothesis ; Androgen responsiveness
• 刊名：Hormones and Behavior
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：87
• 期：Complete
• 页码：89-95
• 全文大小：513 K
• 卷排序：87

文摘

In stonechats, breeding territorial aggression depends on testosterone and oestradiol. Latency to attack a decoy intruder was negatively correlated with testosterone. Males had the physiological capacity to increase testosterone. However, during simulated territorial intrusions they did not increase testosterone. Differences in the control of year-round territoriality reflect evolutionary tinkering.