Nutrient enrichment modifies temperature-biodiversity relationships in large-scale field experiments.

ABSTRACT: Climate effects and human impacts, that is, nutrient enrichment, simultaneously drive spatial biodiversity patterns. However, there is little consensus about their independent effects on biodiversity. Here we manipulate nutrient enrichment in aquatic microcosms in subtropical and subarctic regions (China and Norway, respectively) to show clear segregation of bacterial species along temperature gradients, and decreasing alpha and gamma diversity toward higher nutrients. The temperature dependence of species richness is greatest at extreme nutrient levels, whereas the nutrient dependence of species richness is strongest at intermediate temperatures. For species turnover rates, temperature effects are strongest at intermediate and two extreme ends of nutrient gradients in subtropical and suba

SUBMITTER: Wang J 

PROVIDER: S-EPMC5187590 | biostudies-literature | 2016 Dec

REPOSITORIES: biostudies-literature