REM 311 Chapter Notes - Chapter 2: Genetic Drift, Environmental Factor, Repeated Measures Design
13 Apr 2018
School
Department
Course
Professor
Document Summary
What is the year-to-year variation in the growth rate? . What are the confidence limits on the predicted population size? . Variation between individuals within the same population: genetic & developmental differences among individuals, genetics, phenotypes, genetic drift, sex, etc. Variation in the average chances of survivorship & reproduction: occurs from population composition of different individuals/ characteristics, effects population size heavily. Models developed allows variability in number of survivors/ offspring not survival rates. & fecundities: even when rates remain same -> demographic stochasticity introduces randomness in population. 2nd ed: 2) how it affects the population dynamics, 3) what the value of that environmental factor will be in the future. Catastrophes: natural events i. e. floods, fires, and droughts. Parameters: survival, fecundity, growth rate: variations of these parameters are from demographic and environmental variation. Form and structure of the expressions we use to describe the population: wrong expression causes uncertainty. Simple models can miss important ecological processes.
