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World Migratory Bird Day 2022: Explaining the impact of light pollution on bird migration patterns | The Weather Channel – Articles from The Weather Channel

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On the eve of World Migratory Bird Day 2022, light pollution and its impact on migratory birds is the focus of a global campaign aimed at raising awareness of migratory birds and the need for international cooperation to conserve them.

World Migratory Bird Day is celebrated in two days. The two traditional celebrations of World Migratory Bird Day on the second Saturday in May and October are a way to reflect the cyclical nature of bird migration as well as the fact that there are varying peak periods of migration in the northern and southern hemispheres. Activities to celebrate this day will be held worldwide under the slogan “Dim the lights for birds at night”.

Light pollution is increasing all over the world. It is estimated that more than 80 percent of the world’s population lives under a “lit sky,” a figure closer to 99 percent in Europe and North America.

The amount of artificial light on Earth’s surface is increasing at least 2 percent each year and could be much greater, Bian said.

Amy Fraenkel, Executive Secretary of the Convention on the Conservation of Migratory Species of Wild Animals (CMS), said: “Natural darkness has as much protection value as clean water, air and soil. One of the main goals of World Migratory Bird Day 2022 is to raise awareness of the issue of light pollution and its negative effects on birds. migratory, solutions are readily available, and we hope to encourage key decision makers to adopt measures to address light pollution.”

The Convention on Migratory Species (CMS) is a United Nations environmental treaty that provides a global platform for the conservation and sustainable use of migratory animals and their habitats.

Light pollution is a significant and growing threat to wildlife, including many species of migratory birds. Each year, light pollution contributes to the death of millions of birds. It alters the natural patterns of light and dark in ecosystems. It can alter bird migration patterns, foraging behaviors, and vocal communication.

Migratory birds are attracted to artificial light at night, especially when there is low cloud, fog, or rain or when flying at low altitudes, and they can end up circling in lighted areas. Exhausted energy reserves put them at risk of exhaustion, predation, and fatal collisions with buildings.

Jacques Trovelles, Executive Secretary of the Convention on the Conservation of African-Eurasian Migratory Waterbirds (AEWA), said: “There is a huge diversity of birds, which are active at night, and are exposed to the effects of light pollution. Many night-migrating birds such as ducks, geese and geese are affected by plovers, sandpipers and songbirds. By light pollution that causes confusion and collision with fatal consequences. Seabirds such as petrels and shearwaters are attracted by artificial lights on land and become prey for rats and cats.”

Parties to the Convention on Migratory Species adopted in 2020 guidelines on light pollution that cover sea turtles, seabirds and migratory shorebirds. The guidelines set out six principles for lighting best practices and call for environmental impact assessments of related projects that could lead to light pollution. It should take into account the main sources of light pollution in a given location, potential wild species that could be affected, and facts about proximity to important habitats and migration routes.

Many governments, cities, businesses, and societies around the world are already taking steps to tackle light pollution.

Susan Bonfield, Director of Environment for the Americas, said: “World Migratory Bird Day is a call to action to conserve migratory birds internationally. As migratory birds travel across borders, inspiring and connecting people along the way, our goal is to use Two Days in 2022 to raise awareness of the threat of light pollution. and the importance of the dark sky for the migration of birds.

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