%0 Journal Article
%T Effects of iron mine exploitation on the population of brown eared pheasant<br>铁矿开采对褐马鸡种群的影响
%A ZHANG Guo-Gang
%A ZHENG Guang-Mei
%A ZHANG Zheng-Wang Ministry of Education Key Laboratory for Biodiversity Science
%A Ecological Engineering
%A College of Life Sciences
%A Beijing Normal University
%A Beijing Research Institute of Forest Protection
%A Chinese Academy of Forestry
%A Beijing
%A <br>张国钢
%A 郑光美
%A 张正旺
%J 生物多样性
%D 2004
%I Science Press
%X Brown eared pheasant, Crossoptilon mantchuricum, is a globally threatened species of pheasant that is native to China. Following research in 1997, effects of iron mine exploitation on this species were studied again in Wulushan Nature Reserve of Shanxi Province in the spring of 2000, aiming at further un- derstanding the current status of habitats and population dynamics. Before exploitation, brown eared pheasants were observed in all three buffer zones, i. e. <50 m, 50 - 100 m, >100 m. Early after ex- ploitation began, the species was not found in the <50 m buffers, and there was a small decrease on number in the 50 - 100 m buffers, and an increase in the >100 m buffers. The results indicate that iron mine exploitation caused brown eared pheasants in the <50 m and 50 - 100 m buffers to move to the > 100 m buffers. After 3 years, brown eared pheasants did not occur in either the <50 m or the 50 - 100 m buffers. Compared with early after exploitation began, there was also a decrease in >100 m buffers. At the beginning of exploitation, because there were few iron mines, the effects on activities of brown eared pheasants were not great and population density did not change markedly. However, with increase in the number of iron mines and long-term exploitation many feeding sites were damaged, and this, com- bined with the effect of noise and explosives from mining, restricted normal feeding activities directly. Consequently population density and ranging pattern changed greatly. The results indicate that iron mines are an important factor determining habitat use by brown eared pheasants. The species has not accommo- dated to habitat change caused by iron mine exploitation.
%K Crossoptilon mantchuricum
%K iron mine
%K population density
%K spatial pattern
%K Wulushan<br>褐马鸡
%K 铁矿
%K 种群密度
%K 空间分布
%K 五鹿山
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=90BA3D13E7F3BC869AC96FB3DA594E3FE34FBF7B8BC0E591&jid=284A3BE2D09272C2DA95716775015427&aid=54CE387E0BEE2BB0&yid=D0E58B75BFD8E51C&vid=59906B3B2830C2C5&iid=38B194292C032A66&sid=160561E9A96393DE&eid=892C6E385D640C1E&journal_id=1005-0094&journal_name=生物多样性&referenced_num=0&reference_num=15