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 148
Nicholas J. Gotelli. INCORPORATING A VICTIM CARRYING CAPACITY The victim isocline tells us how many predators are needed to hold the victim population in check . Notice that as we move to the right in the state - space graph ( Figure 6.1 ) ...
Nicholas J. Gotelli. INCORPORATING A VICTIM CARRYING CAPACITY The victim isocline tells us how many predators are needed to hold the victim population in check . Notice that as we move to the right in the state - space graph ( Figure 6.1 ) ...
Page 154
... victim car- rying capacity , predator functional response , Allee effects , and a variety of other reasons , the victim isocline may have a hump in the middle ( Rosenzweig and MacArthur 1963 ) , turning downward at both low and high ...
... victim car- rying capacity , predator functional response , Allee effects , and a variety of other reasons , the victim isocline may have a hump in the middle ( Rosenzweig and MacArthur 1963 ) , turning downward at both low and high ...
Page 159
... isocline . If the predator is not a specialist on the victim , the predator population may be able to increase even when the victim density declines to zero . ( c ) Effects of victim density on the predator isocline . If the size of the ...
... isocline . If the predator is not a specialist on the victim , the predator population may be able to increase even when the victim density declines to zero . ( c ) Effects of victim density on the predator isocline . If the size of the ...
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