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 4
... births in the population is the product of the instantaneous birth rate and the pop- ulation size : B = bN Expression 1.6 Similarly , we can define an instantaneous death rate d , with units being num- ber of deaths per individual per ...
... births in the population is the product of the instantaneous birth rate and the pop- ulation size : B = bN Expression 1.6 Similarly , we can define an instantaneous death rate d , with units being num- ber of deaths per individual per ...
Page 28
... birth and death rates , b and d , remained constant . We did explore some models in which b and d fluc- tuated through time ( environmental stochasticity ) , but those fluctuations were density - independent ; in other words , birth and ...
... birth and death rates , b and d , remained constant . We did explore some models in which b and d fluc- tuated through time ( environmental stochasticity ) , but those fluctuations were density - independent ; in other words , birth and ...
Page 31
... birth and death rates in the logistic model . The graph illustrates how the per capita rates of birth and death change as a function of crowd- ing . The population reaches a stable equilibrium ( N = K ) at the intersection of the curves ...
... birth and death rates in the logistic model . The graph illustrates how the per capita rates of birth and death change as a function of crowd- ing . The population reaches a stable equilibrium ( N = K ) at the intersection of the curves ...
Contents
Logistic Population Growth Expens | 27 |
AgeStructured Population Growth | 55 |
MODEL PRESENTATION AND PREDICTIONS | 90 |
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Common terms and phrases
abundance age class age structure Allee effect allenbyi assumptions axis birth and death birth rate calculate carrying capacity Chapter coexistence colonization competition competitors constant death rate decrease density-dependent depends E. O. Wilson ecology Euler equation example exponential growth Expression extinction rate Figure fluctuations functional response habitat immigration rate interspecific competition isocline of species iteroparous K-selection K₁ K₂ large islands Leslie matrix logarithmic logistic growth logistic model Lotka-Volterra equations Lotka-Volterra model MacArthur-Wilson model mathematical maximum metapopulation metapopulation models N₁ N₂ number of individuals Number of predators number of species Number of victims offspring parasite passive sampling model patches persist population cycles population growth rate population sizes predator and victim predator isocline predator population primer rate of increase red grouse represents reproductive value rescue effect schedule source pool species richness species-area relationship survivorship survivorship curve tion turnover ulation victim density victim isocline victim population zero