BIO 201 Lecture Notes - Lecture 10: Net Reproduction Rate
9 Aug 2018
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Document Summary
2: describe two basic models of population growth (exponential, logistic). Population growth rate: r=(b-d: change in population with time: N= population size t= time r= net reproductive rate. The rate of change of the population is proportional to the size of the population. Logistic growth: assumes population growth with constraints, describes growth of a single population, assumes growth as a limit. As n approaches k, population growth slows down and eventually the population remains a constant size: describe the involvement of growth rate and carrying capacity in life history and reproductive strategies of different species (r-strategists versus k-strategists). R ( r selected"; r selection) strategies: rapid population growth, high reproductive output, low parental care, high dispersal ability, poor competitive ability with other species, unstable population sizes. Type i or physiological: many humans survive most of their potential life span, for some species, mortality is highest at advanced ages.
