Lecture 14- Reproduction, Numbers, Capacity

Lecture 14- Reproduction, Numbers, Capacity - Lecture 14...

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Lecture 14- Reproduction, Numbers, Capacity K - Carrying capacity -The maximum number of individuals that an environment can support indefinitely -It is not always easy to identity what K is; for example, it may be limiting food, space, etc. Limits Population growth r -A population’s per capita growth rate (intrinsic rate of increase) G -Generation time or number of generations -note: a biological generation is the time from the birth of a parent to the average birth of all offspring R -Multiplication rate (N /N ) N -Initial population size N -Final population size l -survival (mortality); a number between 0 and 1, starts at 1 and declines to 0 m -fecundity: potential reproductive capacity of an organism or population Change in Populations Over Time = - dNdt rNK NK = Nt N0ert Start with Population- Compound Interest
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= Nt NRg Compound interest example: If 2 parents have 3 children as do each of their descendants for 13 generations So. .. when = Nt N0Rg After 5 generations,
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This note was uploaded on 04/04/2009 for the course BIOLOGY 1222 taught by Professor Haffie during the Spring '09 term at UWO.

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Lecture 14- Reproduction, Numbers, Capacity - Lecture 14...

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