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
... go extinct . The second shift concerns the spatial scale at which we study populations . In Chapters 1-3 we emphasized equilibrium solutions for population size , implicitly focusing on local populations that persisted through time . In ...
... go extinct . The second shift concerns the spatial scale at which we study populations . In Chapters 1-3 we emphasized equilibrium solutions for population size , implicitly focusing on local populations that persisted through time . In ...
Page 92
... go extinct during the year : P2 = 1 − ( P ̧ ) ( P ̧ ) = 1 − ( pe ) 2 - Expression 4.2 More generally , the probability of regional persistence in a set of x patches is the probability that all x patches do not go simultaneously extinct ...
... go extinct during the year : P2 = 1 − ( P ̧ ) ( P ̧ ) = 1 − ( pe ) 2 - Expression 4.2 More generally , the probability of regional persistence in a set of x patches is the probability that all x patches do not go simultaneously extinct ...
Page 98
... extinction ( pe ) . If this condition is not met , the 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 ...
... extinction ( pe ) . If this condition is not met , the 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 ...
Contents
Logistic Population Growth Expens | 27 |
AgeStructured Population Growth | 55 |
MODEL PRESENTATION AND PREDICTIONS | 90 |
Copyright | |
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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