Environmental variation caused an increase of the rarest species and a decrease of the most common species. Extinction risk proportion were also shifted, giving the most common species, during constant environment, the highest extinction risk in climate with high environmental variance.

Synchrony of species environmental responses and dispersal between subpopulations can both have major influences on stability and extinction risk of food webs indicating that spatial structure could be one of the dominating factors stabilizing food webs found in nature.

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