BIOL3044 Lecture Notes - Lecture 2: Ecological Genetics, Genetic Variation, Genetic Variability
Document Summary
Ecology, evolution, and genetics have an overlap. Ecological genetics is thus a point of view in which awareness of variability among organisms is involved in the study of all kinds of ecological interactions, both biotic and abiotic. Key ecological parameters (e. g. population growth rate, competitive ability, attack rates of predators) are not fixed properties of populations of species, but are acknowledged to evolve in an ongoing feedback between ecology and genetics. R = response to selection: adaptive evolutionary change. Adaptive evolutionary change = function of genetics of an organism and its ecology: f(genetics,ecology) Simplistic because it applies to a fairly narrow circumstance easy to understand circumstance: we will expand this idea to a more complete version that covers a broader variety of ecological circumstances. Theme 2: if r = h2s, then heritable variation for traits under selection will produce change. It implies that if there is no change, there is either no selection or no heritable variation.
