Ecology-Unit 1 Chapter 2

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  1. Population
    all individuals of a species that occupy a particular geographic area at a certain time
  2. Exponential growth
    • accelerating growth that produces a ¬†J-shaped curve when the population is graphed against time
    • exponential01
  3. Limiting factors
    a factor that limits the growth, distribution, or amount of a population in a ecosystem
  4. Carrying capacity
    the size of a population that can be supported indefinitely by the available resources and services in an ecosystem
  5. Ecological niche
    • the way that an organism occupies a position in an ecosystem including all the necessary biotic and abiotic factor
    • Niche
  6. Predator
    • an organism that kills and consumes other organisms for energy
    • in trophic level two or higher
  7. Prey
    an organism that is eaten as food by a predator
  8. Mutualism
    • a symbiotic relationship between two species in which both species benefit from the relationship
    • 0305feature-3
  9. Parasite
    • an organism whose niche is dependent on a close association with a larger host organism
    • diagram
  10. Competition
    • limiting the size of a population¬†
    • energy used to get the most resources
  11. Sustainable use
    use that does not lead to long-term depletion of a resource or affect the diversity of the ecosystem from which the resource is obtained
  12. Doubling time
    the period of time that is required for a population to double in size
  13. Ecological footprint
    a measure of the impact of an individual or population on the environment in terms of energy consumption, land use, and waste production
  14. Unsustainable
    a pattern of activity that leads to a decline in the function of an ecosystem
  15. Sustainability
    use of Earth's resources, including land and water, at levels that can continue forever
  16. Ecosystem services
    the benefits experienced by organisms, including humans, that are provided by sustainable ecosystems
  17. Desertification
    • the change of non-desert land into a desert
    • may result from climate change and unsustainable farming or water use
    • Africa_p123_2
  18. Ecotourism
    a form of tourism that is sensitive to the health of an ecosystem and involves recreational activities provided by sustainable ecosystems
Card Set:
Ecology-Unit 1 Chapter 2
2015-09-29 03:21:26
Science Unit1 Chapter2 Ecology Population Humans Niche

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