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首页> 外文会议>International Conference on Machine Tool Technology and Mechatronics Engineering >Altitudinal Gradient May Shadow The Effects Of Altitudinal Range On Species Diversity
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Altitudinal Gradient May Shadow The Effects Of Altitudinal Range On Species Diversity

机译：高度梯度可能会遮挡大道范围对物种多样性的影响

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Altitudinal range is widely used as a proxy of habitat heterogeneity to explain broadscale geographical patterns of species diversity. Though altitudinal range is a factors derived from altitudinal gradient, altitudinal range's effects on species diversity on altitudinal gradient remain little known. Based on large scale information of plant species, climatic and geographical factors, we investigated the altitudinal patterns of plant species diversity in the East Himalaya regions, and the effects of altitudinal range on species diversity on altitudinal gradient. We constructed two coefficients, ARDMA (altitudinal range divided by median altitude) and SDDAR (species diversity divided by altitudinal range). We used Spearman's rank correlation to examine the associations among all of factors. Our results showed that species diversity decreased as the increase of altitude, and significantly related to potential evaporation. No significant correlation was observed between altitudinal range and species diversity, whereas ARDMA significantly related to species diversity, suggesting that only when altitudinal gradient was controlled, were there significant correlations between altitudinal range and species diversity. SDDAR significantly and negatively related to median altitude. We concluded that energy availability significantly affected the altitudinal patterns of species diversity, and altitudinal gradient may shadow the effects of altitudinal range on species diversity.
机译：高度范围被广泛用作栖息地异质性的代理，以解释物种多样性的广阔地理模式。虽然高度范围是源自高度梯度的因素，但是高度范围对海拔梯度对物种多样性的影响仍然鲜为人知。基于植物物种，气候和地理因素的大规模信息，我们调查了东喜马拉雅地区的植物物种多样性的大自然模式，以及高原范围对大道梯度物种多样性的影响。我们构建了两种系数，Ardma（altudinal范围除以中位海拔高度）和sddar（物种多样性除以高度范围）。我们使用Spearman的等级相关性来检查所有因素中的关联。我们的研究结果表明，由于海拔高度的增加，物种多样性降低，与潜在的蒸发有显着相关。在高度范围和物种多样性之间没有观察到显着的相关性，而Ardma与物种多样性显着相关，表明只有在加尔鲁特梯度被控制时，海拔地区和物种多样性之间存在显着相关性。 SDDAR显着和与中位海拔有关。我们得出结论，能源可用性显着影响了物种多样性的高度模式，并且高度梯度可能会阴影大学范围对物种多样性的影响。

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