Wolf reintroduction, predation risk, and cottonwood recovery in Yellowstone National Park
Wolf reintroduction, predation risk, and cottonwood recovery in Yellowstone National Park
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DOI：
10.1016/s0378-1127(03)00154-3
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发表时间：
2003-10-03
影响因子：
3.7
通讯作者：
Beschta, RL
中科院分区：
文献类型：
--
作者：
Ripple, WJ;Beschta, RL
我们研究了年轻的河岸三角叶杨（杨属）。和相关的木本植物沿着苏打巴特溪和拉马尔河在黄石国家公园（YNP）东北部的狼/麋鹿相互作用对植物生长的潜在影响。在YNP大约70年没有狼之后，他们在1995-1996年冬季重新引入。当我们比较木本植物的高度在1998年之前拍摄的照片与2001-2002年的照片中所示，我们发现在研究区域内的8个站点中有6个的河岸木本植物的高度增加。植物在点坝、河流汇合处和岛屿位置最高（1-4 m），而高度保持相对较低（
We studied young riparian cottonwoods (Populus spp.) and associated woody plants along Soda Butte Creek and the Lamar River in northeastern Yellowstone National Park (YNP) to examine the potential influence of wolf/elk interactions upon plant growth. After a period of approximately 70 years without wolves in YNP, they were reintroduced in the winter of 1995-1996. When we compared woody plant heights shown in photographs taken prior to 1998 with those shown in 2001-2002 photos, we found an increase in the height of riparian woody plants for six of the eight sites within the study area. Plants were tallest (1-4 m) at point bar, stream confluence, and island sites, while heights remained relatively low (