BIOL 150 Lecture Notes - Lecture 4: Logistic Function, Exponential Growth, Life Table
Document Summary
Learning objectives: contrast exponential and logistic models of population growth, describe carrying capacity and explain how carrying capacity can vary over time, be able to identify density dependent and density independent factors and their influence on population size. Of the five big ideas we emphasize systems . Living systems are interconnected and interact with each other. Population growth is influenced by biotic and abiotic factors. Interactions between organisms can influence growth of populations . Population: group of individuals of same species that live in the same area at the same time. Population ecology the study of how and why the number of individuals in a population change over time. Random position of each individual is independent of others (seed dispersal) Clumped patchy or organized into social groups. Uniform negative interactions among individuals or groups. Other species that provide habitat, food, competition. Demography looks at factors that influence size and structure of populations over time.
