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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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 population
size can ...
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 ...
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 the
activity density of G. allenbyi. As the density of G. pyramidum increased, G.
allenbyi did ...
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LibraryThing ReviewUser Review - dougb56586 - LibraryThing
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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