BIOL 226 Study Guide - Ecological Footprint, Life History Theory, Infant Mortality
Document Summary
What is a population: group of individuals of the same species in the same area. This is rarely possible: because animals move, demographically you only care about females. Fish in a lake: e. g. mark 100 fish (m) and release them, recapture 200 fish (r) the next week & examine them for marks (rm); 20 have marks, population size = n = , n = r/rm * m. Impossible to count all: count a sub-sample. Indirect method: catch per unit of fishing effort: cpue. Important episodes in an organism"s life: maximum age, age at first reproduction. Frequency of reproduction: number of offspring per reproduction, size of offspring, parental care, bamboo: phyllostachys bambusoides, optimal life history, breed at an early age. Large egg/seed size: breed repeatedly until death, possible, no: limited energy. Tradeoffs: ns favours different life histories for different species, different ecological niches, reading q: the most common kind of dispersion in nature is, clumped, random, uniform, indeterminate, dispersive, decision 1.
