Shifting Climate, Altered Niche, and a Dynamic Conservation Strategy for Yellow-Cedar in the North Pacific Coastal Rainforest
Shifting Climate, Altered Niche, and a Dynamic Conservation Strategy for Yellow-Cedar in the North Pacific Coastal Rainforest
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DOI：
10.1525/bio.2012.62.2.8
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发表时间：
2012-02-01
期刊：
影响因子：
10.1
通讯作者：
Shanley, Colin S.
中科院分区：
文献类型：
--
作者：
Hennon, Paul E.;D'Amore, David V.;Shanley, Colin S.
北美北方太平洋沿岸沿着1000多公里的黄杉大量死亡，是气候对森林树种影响的一个主要例子。在这篇文章中，我们记录了我们的方法来解决树木死亡的原因，我们解释为一系列相互作用的地形，森林结构和小气候因素，作用于黄杉细根冻结的独特脆弱性。树木死亡率的复杂原因减少到两个风险因素-雪深和土壤排水-然后用于模拟现在和未来的雪松栖息地的适宜性。我们提出了一个动态的，全面的保护战略，为这一宝贵的物种的基础上，由不断变化的气候，雪松的生态位，并观察到的风险因素。对黄雪松衰退的研究是作为理解和适应气候变化的其他气候森林问题的模板。
The extensive mortality of yellow-cedar along more than 1000 kilometers of the northern Pacific coast of North America serves as a leading example of climate effects on a forest tree species. In this article, we document our approaches to resolving the causes of tree death, which we explain as a cascade of interacting topographic, forest-structure, and microclimate factors that act on a unique vulnerability of yellow-cedar to fine-root freezing. The complex causes of tree mortality are reduced to two risk factors-snow depth and soil drainage-which are then used to model present and future cedar habitat suitability. We propose a dynamic, comprehensive conservation strategy for this valuable species on the basis of zones created by shifting climate, cedar's ecological niche, and observed risk factors. Research on yellow-cedar decline is offered as a template for understanding and adapting to climate change for other climate forest issues.