populationmurray

populationmurray - POPULATION DYNAMICS READINGS: FREEMAN,...

Info iconThis preview shows pages 1–15. Sign up to view the full content.

View Full Document Right Arrow Icon
POPULATION DYNAMICS READINGS: FREEMAN, 2005 Chapter 52 Pages 1196-1213
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
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.
Background image of page 2
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
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
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
Background image of page 4
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
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
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
Background image of page 6
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.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
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
Background image of page 8
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.
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
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
Background image of page 10
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
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
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
Background image of page 12
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?
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
LIFE HISTORY CHARACTERISTICS Population attributes such as lifespan, mortality and natality patterns, biotic potentials, and patterns of population
Background image of page 14
Image of page 15
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 41

populationmurray - POPULATION DYNAMICS READINGS: FREEMAN,...

This preview shows document pages 1 - 15. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online