Term
| Intrinsic Rate of Increase (r) |
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Definition
| The per capita rate of growth of a population that has reached a stable age distribution and is free of competition and other growth restraints; dN/dt = (b – d)N where (b - d) = r. |
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Term
| Finite Rate of Increase (λ) |
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Definition
| The proportional change in population size from one year to the next (λ = Nt+1/Nt); it represents the average number of offspring produced by an individual per generation |
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Term
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Definition
| Tabulation of mortality and survivorship of a population; time-specific life tables are based on a cross section of a population at a given time; cohort life tables are based on a cohort followed throughout life. |
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Term
| Time-Specific (Static) Life Table |
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Definition
| A population sampled in some manner to obtain the distribution of age classes during a single time period; assumes age-specific mortality rates have been constant through time; survival is estimated by calculating the difference in proportion of individuals in succeeding age classes. |
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Term
| Cohort (Dynamic) Life Table |
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Definition
| Tabulation of age-specific mortality and survival estimated by following a group of individuals all born at the same time |
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Term
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Definition
| Average number of female offspring produced by an average female during her lifetime. |
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Term
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Definition
| Constant proportion of individuals of various age classes in a population through population changes. |
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