In the seas 97% of fish are at risk
Animals. This is how we kill migratory species, the UN report warns
Nearly half of the world's migratory species are in decline and more than a fifth are at risk of extinction due to habitat loss due to human exploitation and climate change
Nearly half of the world's migratory species are in
and more than a fifth are at
risk of extinction.
This is what emerges from a new United Nations report published today,
the first dedicated to migratory animals.
In the dock are the
and the effect of anthropization on ecosystems, the exploitation of territories and
Billions of animals
Billions of animals
cross deserts, plains or oceans every year to breed and feed.
From humpback whales to monarch butterflies,
birds, sea turtles, whales, sharks and many other animals are threatened by
illegal hunting and fishing,
1,189 species monitored
under a 1979 United Nations convention,
44% have suffered declines in numbers and as many as 22% could disappear entirely.
Dramatic picture for the oceans, here
fish species are at risk of extinction.
The figures in the document entitled
'State of the world's migratory species'
are based on assessments and data provided by the International Union for Conservation of Nature (IUCN) and the Living Planet Index, which collects population numbers of
over 5,000 especially from 1970 onwards
The greatest threat, the report states, is posed by
human activities which impact 70% of the species
on the UN list. A threat aggravated by the
effects of the climate crisis
with changes in temperatures that interrupt the timing of migrations, cause heat stress and lead to
increasingly destructive meteorological events
, such as droughts or fires.
The authors of the study urge governments
not to destroy habitats and interrupt migratory paths
when building infrastructure such as dams, oil pipelines or wind turbines.
"These are species that move all over the world. They move to feed and reproduce and they also need rest sites along the way," explained Kelly Malsch, first signatory of the document presented at a United Nations
conference about wildlife in Samarkand, Uzbekistan
The defense of migratory species is by definition
a transnational issue
that cannot be addressed on a national scale by individual countries.
“One country alone can't save any of these species
,” said Susan Lieberman, vice president for international policy at the nonprofit Wildlife Conservation Society.
One example is
the snow leopard of the Nagar Valley in Pakistan,
which lives and hunts across a vast area in the mountains of northern and central Asia, across the borders of as many as twelve countries, including China, India, Russia and Mongolia. According to Colman O'Criodain, WWF's wildlife policy manager, Climate change is a major threat to animals such as the leopard.
Environmentalists are calling on governments to honor the commitments made in 2022 at the
United Nations Conference on Biodiversity
held in Montreal which plan to
dedicate 30% of the
world's terrestrial and marine territories to nature by 2030.