10 Migrações mais incríveis do Mundo

10 Most Amazing Migrations in the World
As the weather starts to get colder, you may notice that your favourite animals are missing. While some may be hibernating, many being a trip to warmer climates.

1. Arctic Tern (Sterna paradisaea)
File:Arctic Tern 2006 06 08.JPG
Has the longest migration of any animal.
71,000 kilometres a year, this adds up to 2.4 million kilometres over my 30 year lifespan.
Fly of the Greenland and the Arctic to Antarctica; from one end of the world to the other.

2.  Humpback Whale (Megaptera novaeangliae)
File:Jubartes em Abrolhos.jpg
Has the longest migration of any mammal.
One female humpback whale travel more than 9,800 kilometres.
Moving from the tropics and head north to feeding grounds. Not all of travel together; pregnant whales and those who had calves in the previous year go north first.

3.  Sooty Shearwaters (Puffinus Griseus)
File:Puffinus griseus in flight - SE Tasmania.jpg
Has the second longest migration.
Travel: 65,000 kilometres.
His travel from breeding grounds in New Zealand and Chile north to feeding grounds covering around 724 to 1096 kilometres a day.

4. Monarch Butterfly (Danaus plexippus)
Migration cycle is longer span so no one butterfly makes the entire round trip.
Travel: 3,100 kilometres
Arrive in Canada in June, then in September (two to three generations later) I head south to Mexico.

5. Dragonflies mainly the Globe skimmers (Pantala flavescens)
File:Wandering glider horizontal edit1.jpg
Has the longest known insect migration.
Travel: 14,000 – 18,000 kilometres
Head out from India to the Maldives, Seychelles, Mozambique and Uganda, using the wind to help me along. Through 4 generations for the complete migration cycle. Just like the monarch no one dragonfly completes the migration on their own.

6. Chinook Salmon (Oncorhynchus tshawytscha)
File:Chinook salmon, Oncorhynchus tshawytscha.jpg
Swim upstream to spawn where I was born.
Travel: 3,000 kilometres
After hatching spend time in fresh water from three months to a year. Migrate to the Pacific Ocean, then head back home to the river was born in to spawn.

7. Adélie Penguins (Pygoscelis adeliae)
File:Adelie chicks in antarctica and Ms Explorer.jpg
Has the longest migration of all of the penguins.
Travel: 17,600 kilometres
Follows the sun from the breeding colonies to winter feeding grounds.

8. Semipalmated Sandpiper (Calidris pusilla)
Fly non-stop over the Atlantic Ocean. The migration is so tough that some young don’t even migrate north until their second year.
Travel: 3,000 kilometres
In mid-May take off from South America heading north towards breeding grounds in the sub-arctic of Canada and Alaska. In July back south again.

9. Wildebeest or Gnu (Connochaetes)
Continually on the move in search of grass and water, following the cycles of rainfall to help guide. Migrating can be very dangerous with lots of predators, that’s why the young travel on the inside of the herd, to help protect them.
Travel: The Serengeti population of wildebeest is a huge nomadic group that migrates 1,600 kilometres each year.
Beginning in January and February, move from the Serengeti plains west towards Lake Victoria.

10. Red Crab of Christmas Island (Gecarcoidea natalis)
File:Gecarcoidea natalis 2.jpg
The trip is synchronized so all of move across the island together. There are so many of that sometimes sections of roads have to be closed to allow to get through there.
Travel: 5 kilometres, traveling up to 12 hours over 5 days.
At the beginning of the wet season (October/November) moving out from the forest to the coast to breed. The males arrive at the sea first followed by the females who soon outnumber them. As tiny babies (only 5 mm across) we travel back from the sea to the forest, a trip that takes about nine days.

Source: http://www.earthrangers.com


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