BIOL 119 Chapter Notes - Chapter 54: Population Ecology, Net Reproduction Rate, Paramecium Aurelia
Document Summary
Population = group of individuals of the same species living in the same area are the same time. Population ecology = study of how and why the number of individuals in a population changes over time n space. Is a dynamic thing, changing along with the two factors listed below: two factors help determine range: abiotic (ex. continental drift) and biotic factors (ex. presence of food, habitat, or competition). Population density = number of individuals in a population per unit area: different kinds of population arrangements: Random = an individual"s position is independent from the position of others. Clumped = social groups like schools of sh, or if habitat is patchy. Uniform = if negative interactions occur among individuals, etc. competition for space. Equation used for a mark-recapture study to estimate population size: mark-recapture works by scientists rst capture a group of animals, mark them, then release.
