One example of resource competition between two organisms are humans and the koala bear, which is actually surprising because you would think this would be between two animals. In this situation this is caused because of the trees. The koala bears live in the trees and they always have, but humans need eucalyptus, which are located in these trees, and koalas also need this eucalyptus. So humans are cutting the trees down which is deforestation causing the koalas to die because they have no home to live in, so in this relationship the humans win by getting the resources that they need, and often leaving the koala bears with nothing at all.
Another example of resource competition is between the Red Eyed Tree Frog, this competition is actually between its own species. There are more male tree frogs then female tree frogs, so the tree frogs actually fight over the female tree frogs looking for a mate. The female then mates with the winner of the fight. This is almost like the world when there would be two worthy men that would fight over the queen, and whoever won got to marry the queen. Except in this situation this is actually between tree frogs.
Wombats have competed against cattle, sheep, and particularly rabbits and the competition against rabbits is because of livestock. Both the rabbits and the wombats need the livestock, so they are actually fighting each other for it. In this fight the rabbits are winning causing a decrease in wombat population. So, between the two organisms the rabbit is winning in this competition, and since the rabbits are winning wombats are now protected by NSW to keep them from going extinct.
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