Karst dolines provide diverse microhabitats for different functional groups in multiple phyla
Karst dolines provide diverse microhabitats for different functional groups in multiple phyla
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DOI：
10.1038/s41598-019-43603-x
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发表时间：
2019-05-09
影响因子：
4.6
通讯作者：
Keppel, Gunnar
中科院分区：
文献类型：
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作者：
Batori, Zoltan;Vojtko, Andras;Keppel, Gunnar
精细尺度的地形复杂性创造了重要的小气候，可以促进物种在其主要分布范围之外生长，并增加当地的生物多样性。喀斯特地貌中的封闭洼地（“漏斗”）是地形复杂的环境，产生的小气候比周围气候更干燥和温暖（面向赤道的斜坡）和更凉爽和潮湿（面向极点的斜坡和洼地底部）。我们发现，在两个不同的门，节肢动物（蚂蚁）和维管植物（维管植物）的生物功能群的分布模式，反映了这种变化的小气候。我们发现，朝北的斜坡和底部的溶液漏斗在匈牙利北方提供了关键的栖息地蚂蚁和植物物种与凉爽和/或潮湿的条件。在气候上，漏斗的朝南斜坡为与温暖和/或干燥条件相关的物种提供了关键的栖息地。发生在周围高原的物种与中间条件。我们的结论是，岩溶漏斗提供了多样性的小气候栖息地，可能有利于持久的类群与不同的环境偏好，表明这些漏斗是潜在的安全避风港，多门在当地和全球气候振荡。
Fine-scale topographic complexity creates important microclimates that can facilitate species to grow outside their main distributional range and increase biodiversity locally. Enclosed depressions in karst landscapes (`dolines') are topographically complex environments which produce microclimates that are drier and warmer (equator-facing slopes) and cooler and moister (pole-facing slopes and depression bottoms) than the surrounding climate. We show that the distribution patterns of functional groups for organisms in two different phyla, Arthropoda (ants) and Tracheophyta (vascular plants), mirror this variation of microclimate. We found that north-facing slopes and bottoms of solution dolines in northern Hungary provided key habitats for ant and plant species associated with cooler and/or moister conditions. Contrarily, south-facing slopes of dolines provided key habitats for species associated with warmer and/or drier conditions. Species occurring on the surrounding plateau were associated with intermediate conditions. We conclude that karst dolines provide a diversity of microclimatic habitats that may facilitate the persistence of taxa with diverse environmental preferences, indicating these dolines to be potential safe havens for multiple phyla under local and global climate oscillations.