Freshwater Species Face Dire Threats: One in Four at Risk of Extinction

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A newly published study in the journal Nature reveals alarming statistics regarding the state of freshwater biodiversity, indicating that a quarter of freshwater species are currently at risk of extinction. The research, titled "One-quarter of freshwater fauna threatened with extinction," provides the first comprehensive assessment of the threats facing vital aquatic ecosystems.

Between 1970 and 2015, the study reports a significant loss of 35% of wetland areas, with the remaining habitats facing substantial threats. Of these, 65% are under moderate to high levels of risk. Additionally, the findings highlight that 37% of rivers longer than 1,000 kilometers have lost their free-flowing nature.

Freshwater environments, which support over 10% of all known species—including one-third of vertebrates and half of all fish—cover less than 1% of the Earth's surface. Despite their critical role in supporting biodiversity and contributing to economic growth, these ecosystems have been largely overlooked in conservation efforts compared to land and ocean species.

The authors of the study emphasize the urgent need for improved conservation strategies to protect these ecosystems and their inhabitants, urging that the decline in freshwater biodiversity must be addressed for the sake of global ecological health.

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