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 91
... METAPOPULATIONS AND EXTINCTION RISK The metapopulation perspective allows us to make a distinction between local extinction , in which a single population disappears , and regional extinc- tion , in which all populations in the system ...
... METAPOPULATIONS AND EXTINCTION RISK The metapopulation perspective allows us to make a distinction between local extinction , in which a single population disappears , and regional extinc- tion , in which all populations in the system ...
Page 92
... metapopulation models in which these local popula- tions are linked to one another , so that probabilities of local extinction and local colonization depend on patch occupancy . A MODEL ... METAPOPULATIONS A Model of Metapopulation Dynamics.
... metapopulation models in which these local popula- tions are linked to one another , so that probabilities of local extinction and local colonization depend on patch occupancy . A MODEL ... METAPOPULATIONS A Model of Metapopulation Dynamics.
Page 98
... metapopulation will go extinct ( f≤ 0 ) . Extinction can happen because the metapopulation is no longer receiving the benefit of external colonization . THE RESCUE EFFECT Our first two metapopulation models ( island - mainland and ...
... metapopulation will go extinct ( f≤ 0 ) . Extinction can happen because the metapopulation is no longer receiving the benefit of external colonization . THE RESCUE EFFECT Our first two metapopulation models ( island - mainland and ...
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