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oneevilfisherman from uop
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$1.00 week 4 check point

• From General-Questions: General-Academic-Questions , Computer-Science: General-CS
• Closed, but you can still post tutorials
• Due on Oct. 06, 2008
• Asked on Oct. 03, 2008 at 12:28:08AM

Q:

Week 4 CheckPoint: Population Size – Due Friday



Resource Required



Ch. 7 VLR, Alien Invasion located under the Week Four Materials section of the aXcess page.



Background



Responses must include a description of the four factors that produce changes in population size: births, deaths, immigrants, and emigrants. See p. 157 of the text for descriptions.



Then identify that excessive births affected the nutria population and make a prediction about what will happen to the nutria population after the land is depleted of the nutriasÂ’ food resource: The high birth rate of the nutria in an ecosystem without natural predators creates a rapid growth in population until they deplete the area of their food supply (vegetation). Unfortunately, the marsh environment they have invaded in the video cannot easily recover from the defoliation. The population of nutria will decline without available food. Where possible, the nutria population will migrate to deplete and damage nearby ecosystems. Refer to Ch. 7, pp. 158-160 for related scenarios.