UGA BIOL 1108 - Population Ecology (4 pages)

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Population Ecology



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Population Ecology

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Pages:
4
School:
University of Georgia
Course:
Biol 1108 - Principles Bio Ii

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BIOL 1108 Edition 1nd Lecture 22 Outline of Last Lecture I Learning Objectives II Definitions III Animal Signs and Communication IV Linking Experience and Behavior V Survival and Reproduction VI Inclusive Fitness and Altruism VII Dispersal Outline of Current Lecture I Learning Objectives II Defining Populations III Bide IV Population Monitoring V Demography VI Life history VII Population Models VIII Population Regulation Current Lecture I Learning Objectives These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute II III IV V VI Describe how life table and survivorship curves represent populations over time Describe trade offs between survival and reproduction life history traits Relate population growth to organisms environments abiotic and biotic Defining Populations Population a group of individuals of the same species that live in the same general area i e potential of interacting o Abundance the number of individuals Density the number of individuals per unit area or volume Dispersion distribution the spacing of individuals in a population o Affected by resources Clumped Uniform Random Bide B births I immigration o Births and immigration add individuals to a population D deaths E emigration o Deaths and emigration remove individuals from a population Population Monitoring Observe what animals are doing Mark and recapture o For birds attach red and aluminum bands on their legs Demography Demography the study of vital statistics of populations and how they change over time o Ex Survival rates emigration ect o Death rate for females is less than males Life tables age specific summaries of survival o Typically of a cohort same age individuals Survivorship curves graphical representation o The proportion or numbers of a cohort alive at each age o 3 types Type 1 death rate is high once reaching a certain age Ex Humans Type 2 constant life line Ex Groundhog Type 3 most



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