Animals Thrive in an Avalanche's Wake
Animals Thrive in an Avalanche's Wake
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DOI：
10.1126/science.279.5358.1853
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发表时间：
1998-03
期刊：
影响因子：
56.9
通讯作者：
K. Krajick
中科院分区：
文献类型：
--
作者：
K. Krajick
在最近和正在进行的一系列研究中，生物学家发现雪崩也有积极的一面：他们创造的残茬地形为从鹿到灰熊再到狼獾的一切事物提供了关键的栖息地。研究人员说，滑梯提高了植物的多样性，因为它们首先清理土地，在原本被针叶树茂密覆盖的地形上挖出长达一公里、宽达100米的永久开口滑道。不能在树荫下生长的植物和灌木在这些阳光充足的滑道上生长，为大型哺乳动物和各种鸟类提供了重要的营养。
In a series of recent and ongoing studies, biologists are finding that avalanches can have a positive side: The stubbled terrains they create provide key habitat for everything from deer to grizzly bears to wolverines. Slides boost plant diversity, researchers say, because they first clear the land, gouging out permanent open chutes up to a kilometer long and 100 meters wide through terrain that would otherwise be densely covered by conifers. Plants and shrubs that can9t grow under shady conifers spring up in these sunny chutes, providing important nutrition for large mammals as well as a variety of birds.