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. |
From inside the book
Results 1-3 of 19
Page 124
... competitors ( r1 and r2 ) . THE PRINCIPLE OF COMPETITIVE EXCLUSION Now that we understand the four graphical ... competitor is close to car- rying capacity ( N2 ≈ K2 ) . If N1 can achieve a positive per capita growth rate [ ( dN1 / dt ) ...
... competitors ( r1 and r2 ) . THE PRINCIPLE OF COMPETITIVE EXCLUSION Now that we understand the four graphical ... competitor is close to car- rying capacity ( N2 ≈ K2 ) . If N1 can achieve a positive per capita growth rate [ ( dN1 / dt ) ...
Page 128
... competitor that is nec- essary to cause extinction . Consequently , each isocline is rotated up or down , but remains ... competitors to cause extinction ( Figure 5.9b ) . IGP can either reinforce or reverse the outcome of competition ...
... competitor that is nec- essary to cause extinction . Consequently , each isocline is rotated up or down , but remains ... competitors to cause extinction ( Figure 5.9b ) . IGP can either reinforce or reverse the outcome of competition ...
Page 134
... competitor densities . Why isn't the isocline of G. allenbyi a straight line ? The answer is that activ- ity density depends not only on the abundance of competitors , but also on the availability and use of different habitats . In the ...
... competitor densities . Why isn't the isocline of G. allenbyi a straight line ? The answer is that activ- ity density depends not only on the abundance of competitors , but also on the availability and use of different habitats . In the ...
Contents
Logistic Population Growth Expens | 27 |
AgeStructured Population Growth | 55 |
MODEL PRESENTATION AND PREDICTIONS | 90 |
Copyright | |
5 other sections not shown
Other editions - View all
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