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What is 1 major cause of 1 present-day species extinction (examine the extinction of a...

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kimamccray | Student | eNoter

Posted July 31, 2012 at 5:31 PM via web

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What is 1 major cause of 1 present-day species extinction (examine the extinction of a specific species that has become extinct in modern times)?

Explain how this extinction came about and what could have been done to prevent it

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trophyhunter1 | College Teacher | (Level 3) Senior Educator

Posted August 1, 2012 at 12:31 AM (Answer #1)

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One cause of extinction is habitat degradation--due to clearing land for agricultural purposes, to provide homes for an expanding populatoin, logging trees and mining. When this occurs, organisms that inhabit that area may find that they have no place to get shelter, food, mates and other vital resources, like water. When the habitat is destroyed, biodiversity suffers. This is not healthy for the functioning of the various ecosystems and can lead to extinctions. An example is the Tecopa pupfish. This creature was a native of the hot springs in the Mojave Desert. Developers destroyed its natural habitat and it went extinct in 1982. The Javan Tiger, went extinct in 1979. This was due to loss of habitat because of agricultural development. They lived in Java which is an Indonesian Island. Organisms generally have a specific niche and when they lose their habitat, they are in danger of becoming extinct.

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