Gao De, Fu Liqin, Sun Jiaxing, Li Yan, Cao Zhen, Liu Yongying, Xu Peng, Zhao Jiancheng
Department of Resources and Environmental Science Hebei Normal University Shijiazhuang China.
Hebei Key Laboratory of Environmental Change and Ecological Construction Shijiazhuang China.
Ecol Evol. 2021 May 4;11(12):7448-7460. doi: 10.1002/ece3.7576. eCollection 2021 Jun.
The utility of elevational gradients as tools to test either ecological hypotheses and delineate elevation-associated environmental factors that explain the species diversity patterns is critical for moss species conservation. We examined the elevational patterns of species richness and evaluated the effects of spatial and environmental factors on moss species predicted a priori by alternative hypotheses, including mid-domain effect (MDE), habitat complexity, energy, and environment proposed to explain the variation of diversity. Last, we assessed the contribution of elevation toward explaining the heterogeneity among sampling sites. We observed the hump-shaped distribution pattern of species richness along elevational gradient. The MDE and the habitat complexity hypothesis were supported with MDE being the primary driver for richness patterns, whereas little support was found for the energy and the environmental factors.
利用海拔梯度作为工具来检验生态假说并描绘与海拔相关的环境因素（这些因素解释了物种多样性模式）对于苔藓物种保护至关重要。我们研究了物种丰富度的海拔格局，并评估了空间和环境因素对苔藓物种的影响，这些影响是由包括中域效应（MDE）、栖息地复杂性、能量以及为解释多样性变化而提出的环境等替代假说事先预测的。最后，我们评估了海拔对解释采样点之间异质性的贡献。我们观察到沿海拔梯度物种丰富度呈驼峰状分布模式。中域效应和栖息地复杂性假说得到了支持，其中中域效应是丰富度模式的主要驱动因素，而能量和环境因素几乎没有得到支持。
