Many ecologists hypothesize that, as global warming accelerates, change in nature must speed up. They assume that as temperatures rise and climatic zones shift, species will face local extinction and colonize new habitats at an ever-increasing rate, leading to a rapid reshuffling of ecological communities. A new study by researchers at Queen Mary University of London (QMUL) and published in Nature Communications shows this is emphatically not the case.

The authors argue that the observed deceleration is a side effect of environmental degradation and the shrinking of regional species pools.

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The findings suggest that a lack of change in local species composition should not be mistaken for stability or ecosystem health. Instead, the widespread slowdown may indicate that the internal engines of biodiversity are losing momentum due to the depletion of regional life.