Wildlife numbers fall by 73% in 50 years, global stock take finds
Human activities continue to drive what the World Wide Fund for Nature (WWF) describes as a "catastrophic" decline in species.
From elephants in tropical forests to hawksbill turtles near the Great Barrier Reef, wildlife populations are declining rapidly, as highlighted in a recent assessment of global biodiversity.
The Living Planet Report, a comprehensive analysis of the state of nature, reveals that global wildlife populations have, on average, decreased by 73% over the past 50 years. This report relies on the Living Planet Index, which compiles data from over 5,000 counts of birds, mammals, amphibians, reptiles, and fish spanning five decades.
Among the alarming findings, the report notes that 60% of the Amazon's pink river dolphins have vanished due to pollution and other threats, including mining and civil unrest.
However, it also highlights some positive conservation outcomes. For instance, a sub-population of mountain gorillas in the Virunga Mountains of East Africa saw an annual growth rate of about 3% between 2010 and 2016.
Despite these isolated successes, the WWF emphasizes that they are insufficient against the widespread destruction of habitats.
Tom Oliver, an ecology professor at the University of Reading, who is not affiliated with the report, stated that when this data is combined with other datasets—such as those showing declines in insect populations—it paints a troubling picture of global biodiversity collapse. “Please don’t just feel sad about the loss of nature,” Mr. Barrett urged. “Recognize that this represents a fundamental threat to humanity, and immediate action is necessary.”
Valentina Marconi from the Zoological Society of London’s Institute of Zoology expressed to BBC News that the natural world is in a "precarious position," but with urgent and collective action from global leaders, there is still an opportunity to reverse the decline.
This urgent call to action comes as world leaders prepare for the United Nations Biodiversity Conference in Colombia, where discussions will focus on strategies to restore nature. Nearly 200 countries have committed to a significant 2022 UN agreement aimed at addressing biodiversity loss, including a target to designate 30% of the planet for nature by 2030.
The UK has endorsed this pledge, with the foreign secretary declaring that climate issues and biodiversity decline will be central to government policy. Ms. Steele described the report as an "incredible wake-up call."
"Healthy ecosystems are vital for our health, prosperity, and well-being," she told BBC News. "This responsibility does not lie solely with the average citizen—it falls on businesses and governments as well. We must protect our land and precious wild spaces for future generations."
The loss of natural habitats is putting many ecosystems at risk, according to Tanya Steele, head of WWF UK, who warned that vital areas, such as the Amazon and coral reefs, are "on the brink of dangerous tipping points."
Comments
Post a Comment