## 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 28

Consequently, the per capita birth and

We did explore some models in which b and d fluctuated through time (

environmental stochasticity), but those fluctuations were density-independent; in

other ...

Consequently, the per capita birth and

**death rates**, b and d, remained constant.We did explore some models in which b and d fluctuated through time (

environmental stochasticity), but those fluctuations were density-independent; in

other ...

Page 31

Birth rate (b) • K Population size (N) Figure 2.1 Density-dependent birth and

birth and death change as a function of crowding. The population reaches a

stable ...

Birth rate (b) • K Population size (N) Figure 2.1 Density-dependent birth and

**death rates**in the logistic model. The graph illustrates how the per capita rates ofbirth and death change as a function of crowding. The population reaches a

stable ...

Page 51

From Figure 2.3a, we know that the maximum possible growth rate for a

population growing according to the logistic ... The equation for the

linear; as in the simple logistic, the greater the number of turtles in the population,

the ...

From Figure 2.3a, we know that the maximum possible growth rate for a

population growing according to the logistic ... The equation for the

**death rate**islinear; as in the simple logistic, the greater the number of turtles in the population,

the ...

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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