The Reproductive Ecology of the Common Coot (Fulce atra) in Zoige Plateau Wetland
Author of the article:Xiao Yue, Zhao Chenhao, Wu Yongjie
Author's Workplace：College of life science, Sichuan University, Chengdu 610065, China
Key Words：Fulica atra, Zoige, Plateau wetland, Reproductive success, Nest-site selection
Abstract：Common coots (Fulica atra) are widespread all over the world and listed as Least Concern (LC) in the IUCN Red List for the high quantity of its population. However, attributed to the degradation of the wetland, the number of coots is decreasing in parts of their distribution areas in recent years, which highlight the necessity of further study and conservation. Some researches on the physiology and ecology of coots were carried out in domestic and foreign; mainly focus on the reproductive ecology. Nevertheless, most of the researches were carried on the wetlands of inland plain; to coots which inhabit in the wetland of plateau, the understanding of basic information such as the hatching rate, fledging success and nest-site selection are still insufficient. Accordingly, coots lived in Zoige Plateau Wetland has been chosen as study object to ascertain the reproductive success and the characteristics of nest-site selection. It turns out that the coots which breed in the wetland of plateau have smaller clutch size and longer hatching period; and also, coots prefer nesting in habitat close to aquatic vegetation and with middle coverage and high height of water plants, which is different from the situation in inland plains. The three principal components that affect the nest-site selection of the coots are safety factor, traffic factor and intraspecific competition factor. We considered that to choose nest site with better shelter and safetyis a kind of nest-site select and nurture behavioral strategy and adaption which formed under the climate of plateau and high predation pressure from the Black-necked Crane (Grus nigricollis). For the conservation of coots, we suggested that choose places with more open water and low height of vegetation to build tourism facility as long as possible in future tourism developing , so that could avoid potential negative impact on the reproduction of the common coot.