## A Primer of EcologyWith the aim of teaching students the essential models in population and community ecology, this book explains in detail the basic concepts of exponential and logistic population growth, age-structured demography, metapopulation dynamics, competition, predation and island biogeography. |

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Page 46

10 1000 F Sheltered site 100 F f |- 10 F 1 l I I l I l l I I I I I 1971 1972 1973 1974

1975 1976 1977 1978 1979 1980 1981 1982 Year Figure 2.12

.

10 1000 F Sheltered site 100 F f |- 10 F 1 l I I l I l l I I I I I 1971 1972 1973 1974

1975 1976 1977 1978 1979 1980 1981 1982 Year Figure 2.12

**Population****density**of ascidians (Ascidia mentula) at six subtidal sites off the coast of Sweden.

Page 47

3 E = E 5 : , 0.2F § { -o- p: 'E o: E 3 0.1 F § 0 I l | N0 100 200 300 0 100 200 300

2.13 (a) Density-independent mortality rates. The mortality rate of ascidians (

Ascidia ...

3 E = E 5 : , 0.2F § { -o- p: 'E o: E 3 0.1 F § 0 I l | N0 100 200 300 0 100 200 300

**Population density Population density**(individuals/m”) (individuals/m”) Figure2.13 (a) Density-independent mortality rates. The mortality rate of ascidians (

Ascidia ...

Page 202

... 75–76 Continuous differential equation for population growth (dN/dt), 4–6

Conversion efficiency (3) population cycles ... age structure and, 56

equilibrium, ...

... 75–76 Continuous differential equation for population growth (dN/dt), 4–6

Conversion efficiency (3) population cycles ... age structure and, 56

**population****density**and, 28–29 predator population equilibrium and, 141–143 stableequilibrium, ...

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User Review - dougb56586 - www.librarything.comThis is a very good introduction to the mathematical models used in population dynamics. The author begins with a simple exponential model of population growth, gradually extends the model to account ... Read full review

### Contents

Logistic Population Growth | 27 |

AgeStructured Population Growth | 56 |

Metapopulation Dynamics | 91 |

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### Common terms and phrases

abundance age class age structure Allee effect allenbyi ascidian assumptions axis birth and death birth rate calculate carrying capacity Chapter coexistence colonization competition competitors constant death rate decrease density-dependent depends ecology environmental stochasticity Euler equation example exponential growth Expression extinction rate Figure fluctuations functional response go extinct habitat immigration rate interspecific competition isocline of species iteroparous K-selection large islands Leslie matrix life-table logistic growth logistic model Lotka–Volterra model MacArthur—Wilson model mathematical maximum metapopulation metapopulation models number of individuals number of species Number of victims offspring oligochaetes parasite passive sampling model patches persist population cycles population density population growth rate population sizes predator and victim predator isocline predator population primer propagule pyramidum rate of increase red grouse represents reproductive value rescue effect schedule simple source pool species richness species—area relationship state-space graph survivorship survivorship curve tion turnover ulation victim density victim isocline victim population zero