Drought attenuates the impact of fish on aquatic macroinvertebrate richness and community composition.

ABSTRACT: Identifying ecological niche filters that shape species community composition is a critical first step in understanding the relative contributions of deterministic and stochastic processes in structuring communities. Systems with harsh ecological filters often have a more deterministic basis to community structure. Although these filters are often treated as static, investigations into their stability through time are rare, particularly in combination with extreme forms of environmental change such as drought.We examined the richness and composition of aquatic macroinvertebrate communities from 36 ponds over four years during the onset of a megadrought to answer the following questions: (1) what are the relative influences of non-native fish presence and pond permanence in structuring comm

SUBMITTER: McDevitt-Galles T 

PROVIDER: S-EPMC6405237 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature