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Unformatted text preview: The sheep eat the same heather plants that the grouse eat, so when there are too many sheep, there is not enough food for the grouse. 3. Both niche and habitat change dramatically for salmon during their life cycle. Illustrate, using two different life history stages. When the salmon are breeding, they are in inland freshwater streams and rivers. They spawn and then swim back out to the river for the summer where the live in salt water and feed on ocean life. They travel back and forth between fresh and salt water. 4. Give an example of how you might use your understanding of niche and habitat to improve salmon conservation. Salmon need rocky stream beds to lay their eggs. If there is a lot of erosion near streams, silt can build up and in the streams the eggs will not survive. Erosion can be caused by clear cutting, or construction near rivers. In order to maintain the salmon's niche, these things should be avoided....
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- Spring '08