Insects role changes in streams under shifting environment and climate
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Functional diversity quantifies the value and range of organismal traits influencing species roles and performance in ecosystems. Aquatic insect functional diversity has been examined previously, but not in the context of strong environmental and climate gradients. We quantified and tested differences in three primary components of functional diversity of stream insects along an altitude gradient: Functional Richness (FRic), Functional Evenness (FEve) and Functional Divergence (FDiv). 24 small streams in three adjacent basins were studied; spanning an elevational range of 2000-3500 m. Our results ...