Exam III Study Guide Study Guide Exam III I. Population Biology A. Characteristics of a population 1. Increases may also lead to increased dispersal, enhanced social hierarchies, and increased territoriality. Sex ratio a. B. Population Growth 1.
Natural populations tend to oscillate in a stable or unstable fashion around the carrying capacity.
C. Population Regulation 1. Through an Ecosystem A. Primary productivity 1. 1st and 2nd Laws of Thermodynamics tell us that energy is limited and transfers are inefficient. Amount of energy that is accumulated is measured as NPP, actually a small fraction of the energy that hits the Earth is converted to energy in chemical bonds. B. Secondary productivity 1.