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 73
... REPRODUCTIVE VALUE Using the Euler equation , we can calculate another useful statistic from the life table — the reproductive value of each age ( Fisher 1930 ) . The reproductive value is the relative number of offspring that remain to ...
... REPRODUCTIVE VALUE Using the Euler equation , we can calculate another useful statistic from the life table — the reproductive value of each age ( Fisher 1930 ) . The reproductive value is the relative number of offspring that remain to ...
Page 74
... reproductive values . From Equation 3.15 , the reproductive value of newborns always equals 1.0 . Thus , reproductive value is measured relative to that of the first age . For example , if v ( 3 ) = 2.0 , an individual of age 3 will ...
... reproductive values . From Equation 3.15 , the reproductive value of newborns always equals 1.0 . Thus , reproductive value is measured relative to that of the first age . For example , if v ( 3 ) = 2.0 , an individual of age 3 will ...
Page 75
... reproductive value — usually newborns and very old individuals , depending on the age structure of the population . Reproductive value is also relevant to problems of population manage- ment and conservation biology . If we are going to ...
... reproductive value — usually newborns and very old individuals , depending on the age structure of the population . Reproductive value is also relevant to problems of population manage- ment and conservation biology . If we are going to ...
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