'Environmental resistance' presentation slideshows

HUMAN POPULATION DYNAMICS opr.princeton/popclock/

HUMAN POPULATION DYNAMICS http://opr.princeton.edu/popclock/. Demography. The study of human populations along with their characteristics and changes. Core Case Study: Are There Too Many of Us?.

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5-2 What Limits the Growth of Populations?

5-2 What Limits the Growth of Populations? . Concept 5-2 No population can continue to grow indefinitely because of limitations on resources and because of competition among species for those resources. . Most Populations Live Together in Clumps or Patches (1).

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Chapter 5: Community Ecology

Chapter 5: Community Ecology. How do species interact?. Interspecific Competition. Members of two or more different species interact to gain access to the same limited resources Niches overlap; the greater the overlap, the more intense the competition

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Chapter 5: Community Ecology

Chapter 5: Community Ecology. How do species interact?. Interspecific Competition. Members of two or more different species interact to gain access to the same limited resources Niches overlap; the greater the overlap, the more intense the competition

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Chapter 19

Chapter 19. Populations. Population Properties. The numbers or population of an organism is limited by their environment Population - all the members of a species living in the same area at the same time Ex: all the oak trees in Houston County. Properties. Can be described by :

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Measuring Populations

Measuring Populations. Introduction. If you had one male and one female elephant in the wild They would reproduce every so often and have a baby elephant That would increase the population Over a short time the elephants would have a much larger population. Introduction.

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Environmental Science: Toward a Sustainable Future Richard T. Wright

Environmental Science: Toward a Sustainable Future Richard T. Wright. Chapter 4. Ecosystems: How They Change PPT by Clark E. Adams (modified). Factors That Contribute to Ecosystem Change. Dynamics of natural populations Mechanisms of population equilibrium Ecosystem response to disturbance.

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Chapters 15 & 16

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Population Ecology

Population Ecology. Population Dynamics. Population: All the individuals of a species that live together in an area Demography: The statistical study of populations, allows predictions to be made about how a population will change. Population Dynamics. Three Key Features of Populations

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Populations grow exponentially

Populations grow exponentially . 4.1. when populations are relatively small and resources are plentiful. when most mature individuals in the population have an opportunity to reproduce. for an indefinite period of time, independently of resources. when they follow an S-shaped growth curve.

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State which species of turtle nests in the greatest numbers on Jupiter Island. (1 mk )

Happy Wed! 9/8/2010. State which species of turtle nests in the greatest numbers on Jupiter Island. (1 mk ) (b) Compare the distribution of nesting in the three species of turtle along the eastern coastline of Florida. (2 mks ). (a) loggerheads / Caretta caretta 1

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State which species of turtle nests in the greatest numbers on Jupiter Island. (1 mk )

Happy Wed! 9/8/2010. State which species of turtle nests in the greatest numbers on Jupiter Island. (1 mk ) (b) Compare the distribution of nesting in the three species of turtle along the eastern coastline of Florida. (2 mks ). (a) loggerheads / Caretta caretta 1

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Objectives:

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Population Biology

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Population growth curves

Population growth curves. Population growth curves. Population is measured as: Births + immigration = deaths + emigration. Population growth curves. Population is measured as: Births + immigration = deaths + emigration

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Ch 8: Population Ecology

Ch 8: Population Ecology. Population Dynamics and Carrying Capacity. Most populations live in clumps due to resource availability, protection, food capture, mating and/or caring for young. 4 variables in population changes: Birth, death, immigration, emigration.

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TAKE NOTES ON THESE TWO TERMS! They appear on the AP exam but are NOT in our textbook!

TAKE NOTES ON THESE TWO TERMS! They appear on the AP exam but are NOT in our textbook! Biotic Potential: capacity for growth factors allow a population to increase under ideal conditions, potentially leading to exponential growth

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