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According to the study, environmental pollution, such as from the spraying of pesticides, and habitat changes have a particularly negative impact on the number of species and the composition of species communities (Photo: Adobe Stock).
News
The devastating impact of humans on biodiversity
March 26, 2025

Not only are the numbers of species declining, but the composition of species communities is also changing. This is shown by a new study published in the journal “Nature”.

Common barbel (Barbus barbus) and chub (Squalius cephalus) were evaluated in the study as representative species of fish communities in Swiss rivers (Photo: Eawag, M. Franco).
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Biochemical signatures to predict how chemical pollution ...
February 13, 2025

Each year, tens of thousands of chemicals enter the market and ultimately the environment. While most of these compounds undergo safety testing before approval, their long-term effects on wildlife remain difficult to predict. To better estimate their potential threat for ecosystems, researchers at Eawag have explored biochemical signatures that indicate the level of chemical stress suffered by fish.

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Eawag: Swiss Federal Institute of Aquatic Science and Technology

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