Through the River and Over the Woods: Migratory Wildlife on Epic Journeys (Slideshow)
Photo credit: Wild Wonders of Europe
Migration requires tremendous resource expenditure -- a trade-off many birds, fish, and oceanic mammals make in the interest of survival. Scientists study range and migratory behaviors as part of the quest to understand how global climate change will affect survival of the species.
Recent findings suggests that in some migratory species, a certain fraction of birds do not migrate with the flock. In warmer years, these birds have a survival advantage and the flock behavior tips towards staying put in winter. Will global climate change put an end to the epic journeys of migration by selecting for the evolution of non-migraters?
More on Wildlife Migrations:
Climate Change Puts Bird Migration on Ice
Blue Whales Rediscover Lost Migration Routes: Here are Four Reasons Why This Might be Happening
Should Humans Assist Animals Migrate So Climate Change Doesn't Kill Them?
9 Human Activities That Threaten Birds and Why We Need to Effect Change Now