Lecture 27 - Ecology - Population bio

Lecture 27 - Ecology - Population bio - OBJECTIVES:...

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OBJECTIVES: Describe the four main characteristics of a population Explain how you could estimate a populations size and explain what factors change a population’s size Describe the two different types of growth and how rate and resources affect both Describe Type I, II, and III survivorship curves and give examples of species that represent each Compare different reproductive strategies
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V. Ecology -- What is ecology? Study of: 1) distribution of organisms 2) abundance of organisms 3) patterns affected by interactions btwn abiotic and biotic factors Ecological scale important: Individual (organismal) = individual physiological and behavioral interaction Population = groups of the same species interacting in space and time Community = groups of many different species interacting in space and time; historical factors impt Ecosystem = communities and physical factors interact across a broad scale; energy flow and nutrient cycles
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Population Biology Populations = Population ecologists ask: 1. What are characteristics of the pop.? 2. What is the growth rate? 3. How is population size regulated; is the pop. sustainable? 4. If energy is limited what are the life history trade-offs?
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This note was uploaded on 03/01/2012 for the course BIO 101 taught by Professor Freeman during the Fall '12 term at Gustavus Adolphus College.

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Lecture 27 - Ecology - Population bio - OBJECTIVES:...

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