BIOL 2060 Lecture Notes - Lecture 9: Voltinism, Semelparity And Iteroparity, Plants And Animals
Document Summary
Population biology is a study of populations of organisms, especially the regulation of population size, life history traits such as clutch size, & extinction. Population ecology is a sub-field of ecology that deals with the dynamics of species populations & how these populations interact with the environment. It is the study of how the population size of species living together in groups change over time & space. There are a number of ways to model population growth for monitoring/examination/prediction. Density-independent growth (growth does not depend on population size) Discrete population growth growth occurs at specific intervals; generations are not overlapping. Continuous population growth overlapping generations; offspring of different ages around at the same time as adults. Parents & offspring are not alive at the same time t. Population not limited ( unlimited" resources, no competitors), grow at same rate each time. Examples: annual plants (phlox), univoltine insects (one generation a year), & semelparous (reproduce once in a lifetime) plants/animals.
