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ecological principles synthesis

ecological principles synthesis - 3 What are diagrams A and...

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Green vs. Gray:  Ecological Principles Synthesis Assigned:   Thursday, 9.23.10 Due: Tuesday, 9.28.10 On your own, answer the following questions (one to two paragraphs each) on a separate piece  of paper.   1)  Your textbook explains what ecosystem services are and provides several examples.  In  your own words, please discuss two of them, identifying their economic and societal benefits to  humans. 2) Identify four characteristics that are used to distinguish between  K - and  r - selected species,  and give an example of a species for each.  What types of organisms do we find in cities?  Provide at least three examples and explain (in ecological terms) how they can survive so well  in an ecologically stressful environment.
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Unformatted text preview: 3) What are diagrams A) and B) telling us about the the population growth (and decline.) Be as specific as you can: A) A) B) B) 4) Define density-dependent and density-independent factors (that affect population sizes.) Describe two density-dependent and two density-independent factors that limit populations, providing an example for each factor. 5) Using the set of ecological principles outlined in class and in your text regarding nutrient and energy cycling, write a set of guidelines for human society that would help us live more sustainably in urban environments. This will take some time and a bit of digging to answer this question thoughtfully, so pace yourselves(!)...
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