invasive species are better equipped than others in the face of climatic extremes

by time news

2024-01-02 18:39:19

By Marie-Cécilia Duvernoy

Published 3 minutes ago, Updated now

In the port of Bodega Bay, California, episodes of drought and flooding have damaged most fish species. BRIGITTE MERLE / Photononstop via AFP

DECRYPTION – Native plants and animals have more difficulty facing sudden changes.

The increase in extreme weather events favors the growth of invasive species, reveals a study published in Nature Ecology and Evolution , exacerbating the threat already weighing on global biodiversity due to climate change. It was by compiling data from more than 2,000 species, gathered in no less than 443 scientific publications, that Chinese and American researchers arrived at this conclusion. It is clear: for a majority of ecosystems, storms, floods, droughts or even heat or cold waves tend to favor the growth of invasive exotic species to the detriment of native species.

The phenomenon has been documented in places as diverse as the Bay of Sevastopol in the Black Sea, the port of Bodega Bay in California, and even in Portugal. In the Iberian estuary of the Rio Minho, episodes of drought and flooding have damaged most species…

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