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 63
... offspring — the gross reproductive rate . But in most populations , mortality in each age class reduces the potential contribu- tion of offspring to the next generation . Thus , the net reproductive rate is the offspring production ...
... offspring — the gross reproductive rate . But in most populations , mortality in each age class reduces the potential contribu- tion of offspring to the next generation . Thus , the net reproductive rate is the offspring production ...
Page 75
... offspring that survive poorly or a few large offspring that sur- vive well . Hence , there may be tradeoffs between offspring number and off- spring survivorship . Life history strategies will also be shaped by constraints ...
... offspring that survive poorly or a few large offspring that sur- vive well . Hence , there may be tradeoffs between offspring number and off- spring survivorship . Life history strategies will also be shaped by constraints ...
Page 76
... offspring production . So , the traits expected under r - selection are early , semelparous reproduction , large r , many offspring with poor sur- vivorship , a Type III survivorship curve , and small adult body size . By contrast , in ...
... offspring production . So , the traits expected under r - selection are early , semelparous reproduction , large r , many offspring with poor sur- vivorship , a Type III survivorship curve , and small adult body size . By contrast , in ...
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