Biology Ecology new wake tech

Biology Ecology new wake tech - A. The scientific study of...

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c. communitie s- interaction of species = structure & organization d. *ecosystems - abiotic and biotic = energy flow and chemical cycles e. The biosphere the many ecosystems of our planet *understanding essential
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B. History of Ecology 1. 1950s heralded increase in crops & decrease of disease in US due to pesticides such as DDT & others, until side effects were discovered by Rachel Carson in 1962. 1. Disenchanment w/ chemicals = rise of environmentalism 2. Today we are faced w/ depletion of natural resources, famine, air pollution, extinction and endangerment of species, global warming and deforestation as result of human manipulation of the environment ..
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DISCUSSION: What are we using today that seems to benefit us, but whose side effects have not yet shown up?
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(1) evolutionary adaptation is the result of an organism interacting w/ the changes in its environment over time. (2) If these organismal changes or adaptations occur during that organism’s lifetime this is ecology .
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Population: same species in same area at same time (1) Density = number of species/unit area. What effect might this have? (2) Growth rate = change of population over time (74 million/year in US, 40% from immigration) is density dependent: consuming resources and waste buildup (3) Age ranges = proportion in different age ranges (baby boomers)
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adaptations resulting in physiological change locations. Changing locations =
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This note was uploaded on 04/18/2008 for the course BIO 110 taught by Professor Ms.mimidavis during the Fall '07 term at Wake Tech.

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Biology Ecology new wake tech - A. The scientific study of...

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