Evolution and Ecology Notes
Subject:
Biology [1]
? Tuesday, June 07, 2011 8:43 PM ? Lecture 1 ? Hierarchy Biosphere ? Ecosystem ? Communities ? Populations ? Organisms ? Organismal Ecology Sub-disciplines of physiological, evolutionary, and behavioral ecology Concerned with how organisms?s structure physiology and behavior meet challenges posed by environment. Population Ecology Population: group of individuals of same species living in area Analyzes factors that affect population size and how/why it changes through time Community Ecology Community: group of populations of different species in area Examines how interactions between species (predation/competition) affect community structure and organization Ecosystem Ecology Ecosystem: community of organisms in area and physical factors with which those organisms interact