Synthesis of trait-based community dynamics and stability

在Dyacom的第二阶段，研究单位的目标是将其基于空间特征的食物网观点推广到社区的随机和确定性集合与生态系统功能之间的动态相互作用。SP 10的作用是整合不同维度和有机体群体的特征信息，并提供关于稳定性的多个维度的综合视图，以响应空间环境的变化。在第一阶段的基础上，我们围绕四个工作包组织了这个项目。在WP 10.1中，我们将整合整个研究单位的资源需求和体型信息，以确定性状组成的异速生长和化学计量限制。因此，我们解决了一个基本问题，根据定义，这些特征需要以不同的方式对不同的有机体群体进行衡量，这些特征是否可以反映在共同的货币中，如营养需求和体型。在WP 10.2中，我们将使用Dyacom中所有有机体群体的综合特征信息来建立瓦登海物种池中的整体特征空间，并测试该特征空间中有多少被局部组装和区域元群落所覆盖(填充)。使用一组最近设计的方法(超体积，扩散图)，我们提供了Dyacom工作的真实综合。在WP 10.3中，我们将重点转向稳定性是应对环境变化的关键属性。在这里，我们将通过使用Dyacom数据和额外的监测时间序列来提供稳定性的天气分析，以评估空间尺度如何影响元社区的时间稳定性，以及处理干扰后恢复的实验数据。最后的WP10.4旨在使dynacom成果可转移到管理环境中。我们将把有关人口变化、稀有性和环境驱动因素的信息整合到脆弱性指数中，并探索是否可以将脆弱性与特征联系起来。因此，SP 10履行了合成项目的中心作用，该项目通过整合来自生物体特定评估、模型输出和相关时间序列的信息，实现了研究单位DYNACOM的所有中心目标。

In Phase 2 of DynaCom, the research unit aims to generalize its spatial trait-based food-web perspective to the dynamic interplay between stochastic and deterministic assembly of communities and the functioning of ecosystems. The role of SP 10 is to integrate the trait information across the different dimensions and organism groups and to provide a synthetic view on the multiple dimensions of stability in response to environmental changes in a spatial context. Building upon the advances from phase 1, we organized this project around four workpackages. In WP 10.1, we will integrate the information on resource demand and body size across the research unit to identify allometric and stoichiometric constraints of trait composition. Thereby, we address the fundamental question whether traits, which by definition need to be measured in different ways for different organism groups, can be reflected in common currencies such as nutrient demand and body size. In WP 10.2, we will use the integrated trait information across all organism groups in DynaCom to establish the overall trait space in the species pool of the Wadden Sea and to test how much of this trait space is covered (filled) in local assemblage and regional metacommunities. Using a set of recently devised methods (hypervolumes, diffusion maps), we provide a true synthesis of the work in DynaCom. In WP 10.3 we turn the focus to stability is key property in response to environmental change. Here, we will provide a synoptic analysis of stability by using DynaCom data and additional monitoring time series to assess how spatial scaling affects temporal stability in metacommunities and experimental data to address post-disturbance recovery. The final WP10.4 aims at making the DynaCom outcome transferable into a management context. We will integrate information on population changes, rarity, and environmental drivers into a vulnerability index, and explore whether we can associate vulnerability to traits. Thereby, SP 10 fulfills the central role of the synthesis project, which addresses all central objectives of the research unit DynaCom by integrating the information from organism specific assessments, model output and associated time series.