Abundance, species richness and functional diversity of aboveground consumers from the Jena Experiment (year 2010)

This data contains species richness, abundance and functional diversity of arthropod communities per plot from a grassland biodiversity experiment (the Jena Experiment). Functional diversity here is expressed by functional richness (FRic), evenness (FEve) and divergence (FDiv). These three measures give an impression about the niches filled by members of a community and the range, dispersion, and value of organismal traits, whereby traits are measurable features of individuals affecting their performance or fitness (Villéger et al. 2008). For each consumer species we used the following five traits to calculate the above mentioned indices: feeding mode, food/ host specialization, stratum, aerial mobility, body mass.

本数据集源自草原生物多样性实验（耶拿实验，Jena Experiment），涵盖各研究样地内节肢动物群落的物种丰富度、个体多度与功能多样性数据。此处的功能多样性以功能丰富度（FRic）、功能均匀度（FEve）及功能分歧度（FDiv）三项指标表征。上述三项指标可反映群落成员所占据的生态位空间，以及生物性状的取值范围、离散程度与分布格局；其中性状指影响个体生存表现或适合度的可测量特征（Villéger等，2008）。针对每一类消费者物种，我们采用以下5项性状计算前述指数：取食方式、食物/宿主特化程度、栖息层、空中活动能力以及体质量。