Ecological drivers of multiple facets of beta diversity in a lentic macroinvertebrate metacommunity
Ecological drivers of multiple facets of beta diversity in a lentic macroinvertebrate metacommunity
复制标题
DOI：
10.1002/lno.10577
复制
发表时间：
2017-11-01
影响因子：
4.5
通讯作者：
Tolonen, Kimmo T.
中科院分区：
文献类型：
--
作者：
Heino, Jani;Tolonen, Kimmo T.
随着认识到生物模式及其决定因素应该研究的不仅仅是物种一级的数据，群落生态学已经有了很大的扩展。相反，还应审查功能和系统发育数据，因为它们可能为基础生态学和应用领域(如保护和生物评估)提供重要信息。因此，我们探索了北方湖泊复合群落中分类、功能和系统发育群落组成沿空间和环境梯度的距离衰减。我们使用基于距离的方法(即Mantel检验、Mantel相关图和db-RDA)来检查不同方面(即分类学、功能和系统发育)和成分(即总量、周转率和嵌套性结果)与空间和环境变量的关系。研究发现，湖泊底栖无脊椎动物群落的物种组成主要沿环境梯度变化，但与湖泊间的空间距离关系不大。我们还表明，功能和系统发育组成只与湖泊之间的环境变化有关，但这些关系通常很弱。我们对贝塔多样性不同方面和成分的探索，通过增加功能和系统发育的观点，增加了对湖泊无脊椎动物群落的了解，这在水生集合群落的研究中是很少做的。这些信息对于评估湖泊的养护和生物评估也很重要，因为它不仅仅是物种一级的数据，应该探索生态模式和潜在机制。
Community ecology has broadened considerably with the recognition that it is not only at the species-level data where biological patterns and their determinants should be studied. Rather, also functional and phylogenetic data should be examined, as they may provide important information for both basic ecology and applied fields such as conservation and bioassessment. We thus explored the distance decay of taxonomic, functional, and phylogenetic community compositions along spatial and environmental gradients within a boreal lake metacommunity. We used distance-based methods (i.e., Mantel test, Mantel correlograms and db-RDA) to examine different facets (i.e., taxonomic, functional, and phylogenetic) and components (i.e., total, turnover and nestedness-resultant) in relation to spatial and environmental variables. We found that the species compositions of lake benthic invertebrate communities varied mostly along environmental gradients, but were also weakly related to spatial distances between lakes. We also showed that functional and phylogenetic compositions were solely related to environmental variation across the lakes, but these relationships were generally weak. Our exploration of different facets and components of beta diversity added to the knowledge of lake invertebrate communities by adding functional and phylogenetic views, which has rarely been done in studies of aquatic metacommunities. Such information is also important in valuing lakes for conservation and bioassessment because it is not only at the species-level data where ecological patterns and underlying mechanisms should be explored.