A Primer of Ecology
With 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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=(b-d)N Expression 2.1 but now we will modify b and d so they are density-
dependent and reflect crowding. DENSITY DEPENDENCE In the face of
increased crowding, we expect the per capita birth rate to decrease because less
food and ...
measures the increase in the death rate from density dependence. Expressions
2.2 and 2.3 are the simplest mathematical descriptions of the effects of crowding
on birth and death rates. In real populations, the functions may be more complex.
Although this population is clearly buffeted by density-independent changes,
there is good evidence of underlying density dependence. Male song sparrows
defend territories that determine their breeding success, but limited food
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LibraryThing ReviewUser Review - dougb56586 - www.librarything.com
This 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
Logistic Population Growth
AgeStructured Population Growth
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