Is phylogenetic and functional trait diversity a driver or a consequence of grassland community assembly?
Is phylogenetic and functional trait diversity a driver or a consequence of grassland community assembly?
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DOI：
10.1111/1365-2745.13260
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发表时间：
2019-08
影响因子：
5.5
通讯作者：
H. Jones;N. Barber;D. Gibson
中科院分区：
文献类型：
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作者：
H. Jones;N. Barber;D. Gibson
由于极端事件和人类活动造成栖息地破坏，社区聚集发生了根本性的变化，以应对干扰。群落聚集有几个重要的方面，可以在应对干扰或物种建立期间进行衡量。在这些可衡量的结果中，分类学或物种多样性(SD)的指标可能是最常见的，在后勤上也最容易评估。越来越明显的是，系统发育(PD)和功能特征(FD)多样性的测量可以提供比传统的多样性测量更多的信息，以及衡量恢复结果的可取和信息的度量标准。然而，目前尚不清楚FD和PD是司机还是社区集会的结果。这篇特写重点介绍了八项实地研究和一篇综述，这些研究和综述调查了PD多样性和功能特征多样性如何被用来更好地理解干扰后或恢复期间的草原群落集合，以及如何通过实验操纵它们作为潜在的驱动因素或将其纳入进化模型。主题包括：作为FD和PD的函数的物种定殖化；优势物种起源对从属物种FD的影响；环境梯度，如种子混合丰富度、第一年降雨量和恢复年龄对FD和分类多样性的影响；干旱和资源可获得性的影响；以及衡量FD和PD以确定它们是否为生态和功能过程提供相似或不一致推断的研究综述。本专题的工作表明，SD、FD和PD可以充当社区集会的司机和乘客，并经常产生不同的见解。土壤养分、降水等环境梯度和干旱等环境驱动因素会以预测和意想不到的方式影响聚集群落的FD和PD。综合。本专题的研究结果突出了考虑草原生态系统中群落聚集的多种生态和进化驱动因素的重要性。推动这一领域向前发展的研究将是那些纳入或研究更高营养水平、现实地纳入气候变化并理清FD和PD影响的研究。
Community assembly changes fundamentally in response to disturbance following habitat destruction due to extreme events and human activities. There are several important aspects of community assembly that can be measured in response to disturbance or during species establishment. Of these measurable outcomes, metrics of taxonomic or species diversity (SD) are perhaps the most common and logistically the easiest to evaluate. It is increasingly evident that measurements of phylogenetic (PD) and functional trait (FD) diversity can provide more information than traditional measures of diversity and desirable and informative metrics to measure restoration outcomes. However, it is unclear whether FD and PD are drivers or a consequence of community assembly. This Special Feature highlights eight field studies and a review that have investigated how PD diversity and functional trait diversity can be used to better understand grassland community assembly following disturbance or during restoration, and how as potential drivers they can be manipulated experimentally or incorporated into evolutionary models. Topics include: colonizing species as a function of FD and PD; dominant species origin impacts on subordinate species FD; impacts of environmental gradients such as seed mix richness, first‐year precipitation and restoration age on FD and taxonomic diversity; impacts of drought and resource availability; and a synthesis of studies that measured FD and PD to determine if they provide similar or incongruent inferences for ecological and functional processes. The work in this Special Feature indicates that SD, FD and PD can act as drivers and passengers of community assembly, and often yield different insights. Environmental gradients such as soil nutrients, precipitation and environmental drivers like drought can influence FD and PD of assembling communities in predicted and unexpected ways. Synthesis. Results from the studies in this Special Feature highlight the importance of considering a multitude of ecological and evolutionary drivers of community assembly in grassland ecosystems. Studies pushing this field forward will be those that incorporate or study higher trophic levels, realistically incorporate climate change and disentangle the impacts of FD and PD.