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 81
... ( Figure 3.5a ) , and reproductive value peaked for individuals near the end of their second year ( Figure 3.5b ) . • After density was reduced , reproduction exceeded mortality , and there was a substantial rate of population increase ...
... ( Figure 3.5a ) , and reproductive value peaked for individuals near the end of their second year ( Figure 3.5b ) . • After density was reduced , reproduction exceeded mortality , and there was a substantial rate of population increase ...
Page 154
... ( Figure 6.10a ) . However , if the predator isocline cross- es to the right of the hump , the predator and victim populations converge on a stable equilibrium point , without population cycles ( Figure 6.10b ) . In this case , the ...
... ( Figure 6.10a ) . However , if the predator isocline cross- es to the right of the hump , the predator and victim populations converge on a stable equilibrium point , without population cycles ( Figure 6.10b ) . In this case , the ...
Page 159
... ( Figure 6.13b ) . Thus , with alternative prey and a preda- tor carrying capacity , the predator isocline can shift from vertical to horizon- tal . As we noted earlier , the availability of other prey may shift the victim iso- cline as ...
... ( Figure 6.13b ) . Thus , with alternative prey and a preda- tor carrying capacity , the predator isocline can shift from vertical to horizon- tal . As we noted earlier , the availability of other prey may shift the victim iso- cline as ...
Contents
Logistic Population Growth Expens | 27 |
AgeStructured Population Growth | 55 |
MODEL PRESENTATION AND PREDICTIONS | 90 |
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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