Function of the uropygial gland in eiders (Somateria mollissima)  

作　　者：Anders Pape Moller Karsten Laursen 

机构地区：[1]Ministry of Education Key Laboratory for Biodiversity Science and Ecological Engineering, College of Life Sciences, Beijing Normal University, Beijing 100875,China [2]Ecologie Systématique Evolution,Université Paris-Sud,CNRS,AgroParisTech,Université Paris-Saclay,91405 Orsay Cedex,France [3]Department of Bioscience,Aarhus University,Grenavej 14,Kalo 8410 Rande,Denmark

出　　处：《Avian Research》2019年第3期330-335,共6页鸟类学研究（英文版）

基　　金：funding from the 15 June Foundation,Denmark

摘　　要：Background:The uropygial gland is an exocrine gland located above the tail of birds that produces a diverse range of biochemicals.It has been hypothesized to be involved in chemical protection,water-proofing and maintenance of plumage brightness.Although these not necessarily mutually exclusive functions have received some empirical support,there has been little empirical research on the function of water-proofing.Methods:Here we analyzed data for 229 individual eiders(Somateria mollissima)collected by Danish hunters during 2016-2018.Results:The Eider is a sea-duck that spends almost its entire life in sea water emphasizing water-proofing of the plumage.The size of the uropygial gland increased with body mass in males,but not in females,and it increased with age.The size of the uropygial gland decreased during winter. Eiders with small uropygial glands grew their feathers at a fast rate.Eiders with large wing areas had large uropygial glands. Conclusions:These findings are consistent with large uropygial glands playing a role in water-proofing during molt and foraging, but also that uropygial glands may play a role in chemical defense.Background: The uropygial gland is an exocrine gland located above the tail of birds that produces a diverse range of biochemicals. It has been hypothesized to be involved in chemical protection, water-proofing and maintenance of plumage brightness. Although these not necessarily mutually exclusive functions have received some empirical support, there has been little empirical research on the function of water-proofing.Methods: Here we analyzed data for 229 individual eiders(Somateria mollissima) collected by Danish hunters during 2016-2018.Results: The Eider is a sea-duck that spends almost its entire life in sea water emphasizing water-proofing of the plumage. The size of the uropygial gland increased with body mass in males, but not in females, and it increased with age. The size of the uropygial gland decreased during winter. Eiders with small uropygial glands grew their feathers at a fast rate. Eiders with large wing areas had large uropygial glands.Conclusions: These findings are consistent with large uropygial glands playing a role in water-proofing during molt and foraging, but also that uropygial glands may play a role in chemical defense.

关 键 词：ANTI-MICROBIAL substance EIDER Somateria mollissima Uropygial GLAND Water-proofing 

分 类 号：Q[生物学]