BILD 3 Lecture Notes - Lecture 18: Larrea Tridentata, Survivorship Curve, Population Biology
Document Summary
Life histories: population density and dispersion, population growth, exponential, logistic, age structure, human population growth, density and dispersion, density. Is the number of individuals per unit area or volume: dispersion. Fish tag: n= population size, m = # recaptured n1= # captured and marked n2= # captured in 2nd sample. Say you capture and mark 10 turtles in a lake. On a second visit, you capture 15 turtles. If none of the animals captured in the second census are marked, the estimated population size is infinity. You have to assume that every individual is likely to get caught and that"s not true. Patterns of dispersion: organisms may be exhibit random, uniform, or clumped spatial distributions, environmental and social factors. Influence the spacing of individuals in a population: a clumped dispersion. Is one in which individuals aggregate in patches: may be influenced by behavior, a uniform dispersion.
