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BIOL 1510 (20)
Lecture 9

BIOL 1510 Lecture 9: SET 9

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Nova Southeastern University
BIOL 1510
Eldakar Omar

SET 9 Population A group of individuals of a single species that occupy the same general area Population Ecology Concerned with changes in population size and the factors that regulate populations over time. EX: Size, age, structure, growth rate Population Density The number of individuals of a species per unit area or volume of the habitat...EX: The number of oak trees per square kilometer in a forest Population Age structure The distribution of individuals in different age groups. Life Tables Track survivorship, the chance of an individual in a given population surviving to various ages..used to predict how long, on average, a person of a given age will live. Survivorship Curve A plot of the number of individuals still alive at each age in the maximum life span Type 1 Survivorship The curve for the human population shows that most people survive to the older age intervals. *Humans and many other large mammals..usually produce few offspring, but gives them good care to survive to maturity Type 2 Survivorship Survivorship is constant over the life span. *Intermediate meaning individuals are no more vulnerable at one stage of the life cycle than another
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