Science Essay Example | Topics and Well Written Essays - 1750 words

Science - Essay Example Once in the sea, they typically stay there around 4 years before returning up the rivers they came from to spawn. 3. Wildebeast – nomadic migration, performed by wildebeasts as a function of seeking out new grazing and better sources of drinking water; this typically is a relatively short migratory route. Occurs on a seasonal basis and is dependent upon the quality of grass and the availability of water within the affected regions. Other species such as the impala accompany the wildebeasts in this mass migration pattern. 4. Humback Whales – seasonal migration. Humpback whales spend the winter months in warmer climates while during the summers they hunt for krill and small fish in polar climates. Performed on a seasonal/yearly basis; this typically is a relatively long migratory route. Humpback whales are known not to eat while in the warmer waters closer to the equator during the winter months. 5. Dall Sheep – altitudinal migration. Dall sheep typically spend the winter months in lower elevations where they can dig through the snow to find patches of existing grass. However, once the summer months appear, they climb back up into higher elevations; both for protection and due to the fact that food is also abundantly available there; this typically is a relatively short migratory route. ... The average arctic tern lives about 20 years and during this time can cover over 1.5 million miles! 7. Golden Eagles-partial migration. The golden eagles ultimately a bird that exhibits a partial migration in the fact that not each and every one of the species leaves it habitat as part of the migration. The migration itself is a medium to long migratory route that has as its purpose breeding in the sub Arctic regions of Alaska and Canada; returning to warmer climates once the summer is at an end. The golden eagle is the emblem of perhaps more countries than any other animal. It is officially the emblem of Albania, Kazakhstan, Mexico, Austria, and Germany. 8. Sea Turtles (pick any one of the 8 species) – reproductive migration. Green sea turtles travel vast distances from their feeding grounds to the beaches that they will ultimately deposit their eggs upon. Currently, green sea turtles, like the other sea turtles, are endangered due to human activity and the overall lack of en vironmental conditions that they can lay their eggs unadulterated. 9. Locusts – is a type of animal that exhibits an interruptive migration. These migrations are incumbent upon the region that the locust is in and the availability of the food source within this region. The distances traveled are usually not as far as many of the other species that have been discussed. Locust migration has been known to cause vast amounts of damage and ultimately the deaths of tens of thousands of people throughout history as the result of famine caused by the destruction in crops and grassland that they can effect. 10. Great Gray Owls- are indicative of a nomadic migration. The nomadic patterns of the great grey owl are little understood;