## 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 5

Page 132

(1991) studied the coexistence of Gerbillus

western Negev desert of Israel. Experimental studies of vertebrate competition

are particularly difficult because of the large areas needed to enclose

populations ...

(1991) studied the coexistence of Gerbillus

**allenbyi**and G. pyramidum in thewestern Negev desert of Israel. Experimental studies of vertebrate competition

are particularly difficult because of the large areas needed to enclose

populations ...

Page 134

In contrast to the predictions of the Lotka–Volterra model, the isocline for G.

pyramidum, but a shallow slope at intermediate competitor densities. Why isn't

the isocline of ...

In contrast to the predictions of the Lotka–Volterra model, the isocline for G.

**allenbyi**is nonlinear, with steep declines at high and low densities of G.pyramidum, but a shallow slope at intermediate competitor densities. Why isn't

the isocline of ...

Page 135

ro £ > *E O <! o 0 10 20 30 40 50 Figure 5.13 The isocline for Gerbillus

estimated from the data in Figure 5.12. Note that the isocline (thick line) is not

linear, but has a region of shallow slope at intermediate densities of G.

pyramidum.

ro £ > *E O <! o 0 10 20 30 40 50 Figure 5.13 The isocline for Gerbillus

**allenbyi**,estimated from the data in Figure 5.12. Note that the isocline (thick line) is not

linear, but has a region of shallow slope at intermediate densities of G.

pyramidum.

### What people are saying - Write a review

#### 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 |

Copyright | |

5 other sections not shown

### Other editions - View all

### 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