BI111 Lecture Notes - Lecture 6: Survivorship Curve, Exponential Growth, Snowshoe Hare
Document Summary
A sub-field of ecology that deals with the dynamics of species populations and how these populations interact with the environment. It is the study of how the population sizes of species change over time and space. ***the characteristics of populations are shaped by the interactions between individuals and their environment. The density of a population is measured as the number of individuals per unit area. The dispersion of a population is the pattern of spacing among individuals within the geographic boundaries. Density: measuring number of individuals per unit of area. ** the size/density of a population is determined by the balance between birth, immigration, death, emigration. A graphic way of representing population data is a survivorship curve a plot of the number of individuals alive at each age. Type i curve (humans, make a few offspring) Shows a low death rate early in life. Type iii curve - (oysters. make a large number of offspring)
