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Like many birds, seabirds often migrate after the breeding season. Of these, the trip taken by the Arctic tern is the farthest of any bird, crossing the equator in order to spend the Austral summer in Antarctica. Other species also undertake trans-equatorial trips, both from the north to the south, and from south to north.
Frederick Albert Urquhart CM (December 13, 1911 – November 3, 2002) was a Canadian zoologist and professor of zoology who studied the migration of monarch butterflies, Danaus plexippus L. [1] [2] Together with his wife, Norah Roden Urquhart CM, he identified their migration routes, discovered that the migration spans multiple generations of butterflies, and found their wintering place in ...
Migration is the regular seasonal movement, often north and south, undertaken by many species of birds. Migration is marked by its annual seasonality and movement between breeding and non-breeding areas. [16] Nonmigratory bird movements include those made in response to environmental changes including in food availability, habitat, or weather.
Examples of long distance bird migration routes Migrating birds face many perils as they travel between breeding and wintering grounds each year. Migration is a dangerous part of a bird 's life cycle, with many trade-offs; birds receive benefits from wintering and breeding in better quality habitats , at the price of higher predation risks and ...
A 2006 study found individual tagged sooty shearwaters from New Zealand migrating 64,000 km (40,000 mi) a year, [2] which gave them the then longest known animal migration ever recorded electronically (though subsequently greatly exceeded by a tagged arctic tern migrating 96,000 km (60,000 mi) [3]).
Other seabirds disperse after breeding, travelling widely but having no set migration route. Albatrosses nesting in the Southern Ocean often undertake circumpolar trips between breeding seasons. [179] The routes of satellite-tagged bar-tailed godwits migrating north from New Zealand. This species has the longest known non-stop migration of any ...
Animal migration is the relatively long-distance movement of individual animals, usually on a seasonal basis. It is the most common form of migration in ecology.
The migration also appears to be quite complex, containing many stopovers and foraging zones throughout the Atlantic Ocean. [28] Ornithologist Chris Mead estimated that a bird ringed in 1957 when aged about 5 years and still breeding on Bardsey Island off Wales in April 2002 had flown over 8 million km (5 million mi) in total during its 50-year ...