Species coexistence in the real world

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This project aims to discover how similar species co-exist without weaker competitors going extinct. Hypotheses offer explanations for stable coexistence in the presence of competition, but logistic barriers mean field tests are almost completely lacking. Recent research on competition and dispersal presents an opportunity to deliver tests using riverine species, leading to experiments at landscape scales. The research will quantify the role of environmental variability and dispersal in permitting stable coexistence of species, thus filling a major knowledge gap. The project expects to provide fresh avenues for research into the causes of species losses – particularly for the 70 per cent that are invertebrates.