Tuesday, September 24, 2013

human carrying capacity

This article talks about logistic growth of organisms that connect to large scale extinction to another community of organisms. The article uses Easter Island as the main example. The island that is in complete isolation is now inhabited by humans with the help of technology. The population raised from 50 to 10 000 in less than 1300 years. Because of this the balance of the environment was thrown off because of overuse which lead to erosion f the islands fertile lands, limited fresh water and deforestation. With the increasing movement on the island which brought rats and diseases diminished corps and spread small pox throughout the islands. The shortage of food and the epidemic brought the population down. When the balance is thrown off it will out it way out to even eventually. I think this was nature was of fighting back from overuse and the natural way to reduce population if an environment cannot sustain it.

1. Carrying capacity is the maximum size f a population of any species that an environment can sustain given its resources, habitats and space. Another way of describing carrying capacity is that it is the environments highest sustainable population.

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