Glossary Terms 1.2 Remus Calugarescu

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Glossary Terms 1.2 Remus Calugarescu
2015-10-02 13:57:02
Glossary Terms

Glossary Terms 1.2
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  1. Population
    All the 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.
  3. Limiting Factors
    A factor that limits the growth, distribution or amount of a population in an ecosystem.

    Example: Resources available
  4. Carrying Capactiy
    The size of a population that an be supported indefinitely by the available resources and services of an ecosystem.
  5. Ecological Niche
    The way in which an organism occupies a position in an ecosystem, including all necessary biotic and abiotic factors.
  6. Predator
    An organism that kills and consumes other organisms.

    Example: Wolf, Bear, Tiger, Hawk, Shark
  7. Prey
    An organism that is eaten as food by a predator.

    Example: Rabbit, Tuna, Squirrel, Blue Jay
  8. Mutualism
    A symbiotic relationship between two species in which both species benefit from the relationship.

    Example: Sharks and Pilot Fish
  9. Parasite
    An organism whose niche is dependent on a close association with a larger host organism.

    Example: Tape worm, Fungi
  10. Competition
    When two or more organisms compete for the same resource in the same location at the same time.

    Example: Tigers and Lions, Killer Whales and Great White Sharks
  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 a 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 lands into desert, which may result from climate change or from unsustainable farming or water use.

    Example: Parts of Africa turning into desert millions of years ago.
  18. Ecotourism
    A form of tourist that is sensitive to the health of an ecosystem involves recreational activities provided by sustainable ecosystems.