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Introduction to Ecology

Introduction to Ecology. Thursday 10/11/2012. Goals for the day. Understand, and be able to describe the difference between r-strategists and K-strategists. Be able to draw the exponential & logistic growth curves labeling the X & Y axes (and carrying capacity where necessary)

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Introduction to Ecology

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  1. Introduction to Ecology Thursday 10/11/2012

  2. Goals for the day • Understand, and be able to describe the difference between r-strategists and K-strategists. • Be able to draw the exponential & logistic growth curves labeling the X & Y axes (and carrying capacity where necessary) • Be able to discuss & explain how humans are involved in the carbon cycle.

  3. Question of the day Through what process do humans contribute to the Carbon Cycle that sets them apart from other organisms? What process links humans & ALL other Organisms to the Carbon Cycle?

  4. Populations A Population consists of all of the individuals of a species that live together in one place at one time.

  5. Population Growth Carrying Capacity: The maximum population size that an environment can sustain.

  6. Limiting Factors

  7. Types of Growth Curves 1. Exponential Growth Curve: A Curve where the rate of population growth increases swiftly over time. As a result, the population size increases steadily.

  8. Types of Growth Curves 2. Logistic Growth Curve: An exponential growth is limited by the carrying capacity of the environment. Takes into consideration food, shelter, competition, limited resources

  9. Rapid Growing Populations Rapidly Growing Populations are called r-Strategists. Ex. Large population size is short lived. Especially when environmental conditions deteriorate.

  10. Slow growing populations Slow growing populations are called k-Strategies. • Ex. Whales. • Care for young a long time

  11. Field Guide Page • You will CREATE 2 organisms • One will be a K strategist, AND one will be an r strategist • Each organism will have its own field guide page with the following attributes

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