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Across the world, migratory animal populations are declining.The reasons are as follows


Ninety-seven percent of migratory fish species face extinction, and the whale shark, the world’s largest living fish, is also on the verge of extinction.

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Ninety-seven percent of migratory fish species face extinction, and the whale shark, the world’s largest living fish, is also on the verge of extinction.

Ulstein Bild/Ulstein Bild

Every year, as the seasons change, billions of animals embark on journeys in search of food, to better habitats, or to breed. They migrate in groups and individuals, flying, swimming, crawling and walking across international borders and habitats to survive and transport seeds and nutrients.

A major new United Nations report finds that humans are not only making these migrations more difficult, but are putting many migratory species at risk.

Nearly half of the world’s already threatened migratory species are declining in numbers, first UN report of its kind More than one-fifth of the nearly 1,200 migratory species (whales, turtles, apes, songbirds, etc.) monitored by the United Nations are threatened with extinction.

“These are great species that have had incredible journeys and, in some cases, they have economic benefits [for humans]as well as the content and cultural significance of the poems and songs,” said Amy Fraenkel, executive secretary of the United Nations Convention on Migratory Species of Wild Animals.

The report, prepared by conservation scientists, is the most comprehensive assessment of the world’s migratory species to date. It looked at 1,189 different species already protected by the Convention on Migratory Species – a 1979 treaty that protects species that migrate internationally. Boundaries – see if conservation efforts are working.

In some cases, it is. wildlife crossing Animals are being helped to cross roads and fences. Regulations are helping to prevent poaching and overconsumption of some threatened fish and mammals. Habitat conservation is giving species space to move and thrive.

However, the report’s authors said that in order to reverse population decline, “these efforts need to be strengthened and expanded”.

The publication is the latest global report to raise concerns about Earth’s non-human inhabitants. A 2019 assessment of the world’s biodiversity found: mega An estimated 8 million species on Earth are at risk of extinction, many within decades, due to human activities such as overconsumption, deforestation, pollution and development.A 2022 WWF report finds that wildlife populations have declined average 69% over the past 50 years.

For migratory species, threats from human activities may be amplified. Protection of species varies from country to country. Enforcement of conservation laws may vary by location.

According to the new report, hunting and fishing – overexploitation – and habitat loss due to human activities are considered the two biggest threats to migratory species. Invasive species, pollution – including light and sound pollution – and climate change also have far-reaching impacts. Report found.

Many species migrate as the seasons change.man-made climate change Seasonal change, lengthening summer, shortening winter and changing the timing of spring and autumn. Scientists record animals, like a north american bird, adjusting their migration timing to accommodate these changes. Not all species keep up with the pace of change, leading to what scientists call phenological asynchrony.

World leaders from the 133 countries that have signed the Convention on Migratory Species will meet in Uzbek this week to chart a way forward.

Frankel said the new report should bring a sense of urgency to all parties, but it should also serve as a guide for anyone “who wants to continue to see birds flying and whales jumping in the water.” she says. “Look at this report and find something [you] What can we do to help these incredible species continue to survive. ”



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