Chap+53+Pop+Ecology

Chap+53+Pop+Ecology - POPULATION ECOLOGY Ecology the study...

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POPULATION ECOLOGY
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Ecology: the study of how organisms relate to one another and to their environments. Physical environment (abiotic factors): Temperature, Water, Sunlight, Soil Homeostasis: plants and animals maintain an internal environment Conformers: plants and animals conform to the environment Responses to environmental change (to maintain homeostasis) Physiological adjustments: constrict blood vessels or perspire Morphological adjustments: grow or shed thicker fur Behavior adjustments: move in and out the sun, hibernate
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POPULATIONS = a collection of individuals of the same species in a particular time and space The area through which a population occurs: population range Pattern of spacing of individuals in the range Attainable population size in the range Population Ecology:
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Population Range: usually very limited but can be broad (e.g., dolphins) Ranges expand and contract with changing environment or colonization of areas previously unoccupied by the species
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Distribution of individuals within a population Brosimum alicastrum Coccoloba coronata Chamguava schippii RANDOM UNIFORM CLUMPED individuals do NOT interact strongly with
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Chap+53+Pop+Ecology - POPULATION ECOLOGY Ecology the study...

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