Shifts in Plant Community Assembly Processes across Growth Forms along a Habitat Severity Gradient: A Test of the Plant Functional Trait Approach.
Shifts in Plant Community Assembly Processes across Growth Forms along a Habitat Severity Gradient: A Test of the Plant Functional Trait Approach.
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植物群落组装过程沿生境严重度梯度跨生长形式的变化：植物功能性状方法的测试
DOI：
10.3389/fpls.2018.00180
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发表时间：
2018
影响因子：
5.6
通讯作者：
Yue M
中科院分区：
文献类型：
--
作者：
Xu J;Chai Y;Wang M;Dang H;Guo Y;Chen Y;Zhang C;Li T;Zhang L;Yue M
物种会对环境的变化做出反应。生态学的一个核心目标是了解植物群落组装对气候变化的反应过程。研究功能性状的表现和基于性状的组装模式是探索组装过程的一种有用的方法。在这项研究中，我们构建了一个栖息地严重度梯度，包括几个环境因素沿沿着海拔2300米，中国中部太白山。然后，我们评估了不同生长形式之间物种之间功能性状值和群落聚集模式沿着这一梯度的变化。我们发现：（1）虽然生境-严重度值与海拔高度密切相关，但沿着生境严重度梯度考察的群落可能揭示未来气候变化下的群落动态和物种响应。(2)不同生长型的性状值沿生境强度梯度沿着分布相似，而草本植物的聚集格局与群落和木本植物不一致。(3)草本植物的性状-性状关系与群落和木本植物的性状-性状关系不同。这些结果表明：（1）无论何种生长型，群落都能通过环境过滤作用沿沿着生境强度梯度重新聚集;（2）不同生长型的物种在不同的性状组合下表现出相似的性状值变化，但性状-性状关系不同。
Species respond to changes in their environments. A core goal in ecology is to understand the process of plant community assembly in response to a changing climate. Examining the performance of functional traits and trait-based assembly patterns across species among different growth forms is a useful way to explore the assembly process. In this study, we constructed a habitat severity gradient including several environment factors along a 2300 m wide elevational range at Taibai Mountain, central China. Then we assessed the shift on functional trait values and community assembly patterns along this gradient across species among different growth forms. We found that (1) although habitat-severity values closely covaried with elevation in this study, an examined communities along a habitat severity gradient might reveal community dynamics and species responses under future climate change. (2) the occurrence of trait values along the habitat severity gradient across different growth forms were similar, whereas the assembly pattern of herbaceous species was inconsistent with the community and woody species. (3) the trait-trait relationships of herbaceous species were dissimilar to those of the community and woody species. These results suggest that (1) community would re-assemble along habitat severity gradient through environmental filtering, regardless of any growth forms and that (2) different growth forms' species exhibiting similar trait values' shift but different trait-trait relationship by different trait combinations.
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影响因子：
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