Impact of climate change on bird migrations

 

 

With every spring comes the great spectacle of bird migrations. Who has never stopped to contemplate the majestic flight of snow geese or Canada geese? Every year, migratory birds travel thousands of kilometres, linking together different ecological systems. Their beauty, what they inspire in us and their importance internationally make them excellent ambassadors for biodiversity.

But the international scientific community is signalling a decline in migratory birds worldwide due to the impacts of climate change. Higher temperatures that lead to desertification in some areas and an increase in storms in different parts of the world have a major effect on bird migrations. A new French study conducted over 18 years and published recently in the British Proceedings of the Royal Society indicates that the average temperature in France, for example, has increased by 0.068 degrees Celsius per year, meaning that any given temperature has moved 273 kilometres north.

The study continues by indicating that bird populations in France are moving their habitats only 182 kilometres north. Birds are thus not migrating north as rapidly as the earth is warming, and this phenomenon could be accompanied by “a desynchronization of interactions between species,” states the study’s main author, Vincent Devictor of the University of Montpellier, evoking the risk of serious consequences for biodiversity.

All wisdom traditions have always spoken to us of the interrelationship between all things. Without a profound, global understanding of the laws of life, humans appear to be apprentice-sorcerers who cause disturbances that impact humanity and all of the other kingdoms of Nature.

 

 

April 20, 2009

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