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# populationmurray - POPULATION DYNAMICS READINGS FREEMAN...

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POPULATION DYNAMICS READINGS: FREEMAN, 2005 Chapter 52 Pages 1196-1213

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MATURNITY TABLE AND REPRODUCTIVE OUTPUT Fecundity is the number of female offspring produced by each female in a population. A maternity table combines survivorship (l X ) with age specific fecundity (m X ) . • Net reproductive output, ∑ (l X m X ), provides a way of projecting population changes each generation.
A SIMPLE MATURNITY TABLE X l x m x l x m x 0-1 1.00 0 0 1-2 0.50 1 2-3 0.30 1 3-4 0.20 1 4-5 0.10 0 5 0 m x = 3

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A SIMPLE MATURNITY TABLE X l x m x l x m x 0-1 1.00 0 0 1-2 0.50 1 0.50 2-3 0.30 1 3-4 0.20 1 4-5 0.10 0 5 0 m x = 3
A SIMPLE MATURNITY TABLE X l x m x l x m x 0-1 1.00 0 0 1-2 0.50 1 0.50 2-3 0.30 1 0.30 3-4 0.20 1 0.20 4-5 0.10 0 0 5 0 m x = 3

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A SIMPLE MATURNITY TABLE X l x m x l x m x 0-1 1.00 0 0 1-2 0.50 1 0.50 2-3 0.30 1 0.30 3-4 0.20 1 0.20 4-5 0.10 0 0 5 0 m x = 3 R o = 1.00
R O AND POPULATION DYNAMICS The following rules can be used to determine if a population is stationary, increasing or decreasing. The rules are: • If R o = 1, then population is stationary. • If R o > 1, then population is growing. • If R o < 1, then population is declining.

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A MATURNITY TABLE FOR A STATIONARY POPULATION X l x m x l x m x 0-1 1.00 0 0 1-2 0.50 1 0.50 2-3 0.30 1 0.30 3-4 0.20 1 0.20 4-5 0.10 0 0 5 0 m x = 3 R o = 1.00
DISTRIBUTION OF BIRTHS AND REPRODUCTIVE OUTPUT In populations that have similar age specific survivorship curves: • First births at early ages increase R o . • First births at late ages decrease R o . Delaying births in a growing population will slow the rate of growth.

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Population A: A Stationary Population X l x m x l x m x 0-1 1.00 0 0 1-2 0.50 1 0.50 2-3 0.30 1 0.30 3-4 0.20 1 0.20 4-5 0.10 0 0 5 0 m x = 3 R o = 1.00
Population B : A Growing Population X l x m x l x m x 0-1 1.00 0 0 1-2 0.50 3 1.50 2-3 0.30 0 0 3-4 0.20 0 0 4-5 0.10 0 0 5 0 m x = 3 R o = 1.50

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Population C : A Declining Population X l x m x l x m x 0-1 1.00 0 0 1-2 0.50 0 0 2-3 0.30 0 0 3-4 0.20 2 0.40 4-5 0.10 1 0.10 5 0 m x = 3 o
CHANGING SURVIVORSHIP AS A MANAGEMENT TOOL Age specific mortality and natality data can be used to make management decisions in harvesting or conserving wildlife populations. Assume that a population of interest is growing at too high a rate, what are the consequences of harvesting old versus young individuals on changing the rate of population growth?

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LIFE HISTORY CHARACTERISTICS Population attributes such as lifespan, mortality and natality patterns, biotic potentials, and patterns of population
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populationmurray - POPULATION DYNAMICS READINGS FREEMAN...

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