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首页> 外文会议>Mining--Gateway to the future! >WILD UNGULATE USE OF AREAS IN SOUTHWESTERN MONTANA AFTER FOURTEEN YEARS OF NATURAL RECOVERY FROM SMELTER IMPACTS
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WILD UNGULATE USE OF AREAS IN SOUTHWESTERN MONTANA AFTER FOURTEEN YEARS OF NATURAL RECOVERY FROM SMELTER IMPACTS

机译：冶炼影响自然恢复四年后，野生蒙大拿州西南部地区的野蛮使用

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During 1994, fourteen years after the closure of the Anaconda smelters in southwestern Montana, two seasonal wild ungulate fecal pellet group surveys were conducted along stratified random belt transects within three areas in close proximity to the smelters and at a more distant reference area. Vegetation patterns on the proximal sites had been altered by emissions during the 96 years of continuous smelter operation. The densities of mule deer (Odocoileus hemionus hemionus) and Shiras moose (Alces alces shiras) droppings on all of the affected areas were either greater, or no different than on the reference area. Seasonal dropping densities of Rocky Mountain elk (Cervus elaphus nelsoni) on the affected area farthest removed from human activities, were either significantly greater or no different than on the reference area. On the two affected areas closest to human activities, elk dropping densities were significantly lower than on the reference area in three of the four comparisons. Thirty-three percent of the ANOVA comparisons of seasonal dropping densities on the affected areas were significantly greater than on the reference area, 50% were not significantly different, and 17% were significantly less. The median horizontal diversity index of land cover types was greater (95% CI) on the affected areas than on the reference site. The mosaic of serai communities that has developed on the affected areas since closure of the smelter appears to have produced levels of big game use which are comparable to those on the reference area, except where elk are influenced by human activities.
机译：在1994年，即蒙大拿州西南部Anaconda冶炼厂关闭后的十四年，在靠近冶炼厂且距离较远的三个参考区域内，沿着分层的随机带状样带进行了两个季节性有蹄类粪便颗粒群调查。在连续冶炼厂运营96年的过程中，近端站点的植被格局已因排放而改变。在所有受灾地区，m鹿（Odocoileus hemionus hemionus）和Shiras驼鹿（Alces alces shiras）的粪便密度与参考区域相比更大或没有差异。在距人类活动最远的受影响地区，落基山麋鹿（Cervus elaphus nelsoni）的季节性下降密度与参考区域相比明显更大或没有变化。在四个比较中的三个比较中，在最接近人类活动的两个受影响区域，麋鹿下落密度显着低于参考区域。在受影响地区的季节性下降密度的ANOVA比较中，有33％明显大于参考地区，有50％的差异不明显，有17％的差异小。受影响地区的土地覆盖类型水平中位数水平多样性指数（95％CI）大于参考地点。自冶炼厂关闭以来，受灾地区已形成的Serai社区的马赛克似乎产生了较大的游戏使用水平，与参考区域的水平相当，除非麋鹿受到人类活动的影响。

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