Molecular demographic history of the Hainan Peacock Pheasant(Polyplectron katsumatae) and its conservation implications  

作　　者：CHANG Jiang CHEN De LIANG Wei LI Ming ZHANG ZhengWang 

机构地区：[1]MOE Key Laboratory for Biodiversity Science and Ecological Engineering,College of Life Sciences,Beijing Normal University [2]Key Laboratory of Animal Ecology and Conservation Biology,Institute of Zoology,Chinese Academy of Sciences [3]MOE Key Laboratory for Tropical Animal and Plant Ecology,College of Life Sciences,Hainan Normal University

出　　处：《Chinese Science Bulletin》2013年第17期2185-2190,共6页

基　　金：supported by the National Natural Science Foundation of China-Guangdong Joint Fund (U0833005);China Postdoctoral Science Foundation (2012M510543);the National Natural Science Foundation of China (30360015 and 30860044);the Program for New Century Excellent Talents in University (NCET-10-0111)

摘　　要：Knowledge of the historical responses of animal species to climate changes is critical for understanding their evolutionary history and conservation.During the late Quaternary period,Southeast Asia had a larger land area than today due to lower sea levels,and its terrestrial landscape was covered by extensive forests and savannah.To date,however,the general fluctuations in landscape distribution and their impacts on the demographics history of native species during the late Quaternary periods are still disputed.Specifically,the responses of animals on Hainan Island,which is located in the northernmost region of Southeast Asia,to historical climate changes,are poorly understood.Here,we performed a series of demographic analyses based on mitochondrial DNA genes to examine the response of the resident Hainan Peacock Pheasant(Polyplectron katsumatae) to climate change.Unlike the pattern of population collapse during the ice age and expansion during the warming period,we detected a historical expansion pattern in the demographic history of Hainan Peacock Pheasant through the late Quaternary period.It was concluded that the Hainan Peacock Pheasant survived through the late Quaternary periods,despite of its currently limited distribution and population size on Hainan Island.Anthropogenic influences must be considered in conservation planning due to their impacts on currently fragmented habitats and populations.Knowledge of the historical responses of animal species to climate changes is critical for understanding their evolutionary history and conservation. During the late Quaternary period, Southeast Asia had a larger land area than today due to lower sea levels, and its terrestrial landscape was covered by extensive forests and savannah. To date, however, the general fluctuations in landscape distribution and their impacts on the demographics history of native species during the late Quaternary periods are still disputed. Specifically, the responses of animals on Hainan Island, which is located in the northernmost region of Southeast Asia, to historical climate changes, are poorly understood. Here, we performed a series of demographic analyses based on mitochondrial DNA genes to examine the response of the resident Hainan Peacock Pheasant （Polyplectron katsumatae） to climate change. Unlike the pattern of population collapse during the ice age and expansion during the warming period, we detected a historical expansion pattern in the demographic history of Hainan Peacock Pheasant through the late Quaternary period. It was concluded that the Hainan Peacock Pheasant survived through the late Quaternary periods, despite of its currently limited distribution and population size on Hainan Island. Anthropogenic influences must be considered in conservation planning due to their impacts on currently fragmented habitats and populations.

关 键 词：进化历史 人口统计 保护规划 海南岛 孔雀 历史气候变化 东南亚地区 雉 

分 类 号：Q75[生物学—分子生物学]