## 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. |

### From inside the book

Results 1-3 of 38

Page 2

The factors that cause a tarantula population to increase from 500 to 800 spiders

will be very different from the factors that cause an endangered condor

population to

size can ...

The factors that cause a tarantula population to increase from 500 to 800 spiders

will be very different from the factors that cause an endangered condor

population to

**decrease**from 10 to 8 birds. Fortunately, all changes in populationsize can ...

Page 119

In this case, the growth rate of N1 is negative, and the population

Finally, if we are at a point precisely on the isocline, N1 neither increases nor ...

In this case, the growth rate of N1 is negative, and the population

**decreases**. The**decrease**is represented as a left-pointing horizontal arrow in the state space.Finally, if we are at a point precisely on the isocline, N1 neither increases nor ...

Page 134

At low densities (regions I and II), both species preferred the semistabilized

dunes, and increased densities of G. pyramidum led to a sharp

activity density of G. allenbyi. As the density of G. pyramidum increased, G.

allenbyi did ...

At low densities (regions I and II), both species preferred the semistabilized

dunes, and increased densities of G. pyramidum led to a sharp

**decrease**in theactivity density of G. allenbyi. As the density of G. pyramidum increased, G.

allenbyi did ...

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#### LibraryThing Review

User Review - dougb56586 - LibraryThingThis 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