Ecology Chapter 2

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Ecology Chapter 2
2015-09-27 14:57:15
Ecology Chapter
Ecology Chapter 2
Vocabulary- Ecology Chapter 2
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  1. Population
    A group of organisms of one species that live in the same place at the same time

    e.g. The human population of Canada is about 35 million people; 35 million people live in Canada
  2. Exponential growth
    • Accelerating growth that makes a J shaped curve when the population is graphed with the  time
  3. Limiting factors
    Factors that limit growth, distribution, or amount of a population in an ecosystem

    e.g. limiting factors include food, water, and space
  4. Carrying capacity

    The size of a population that can be supported indefinitely by the available resources and service of an ecosystem
  5. Ecological niche
    The way that an organism occupies a position in an ecosystem, including all the necessary biotic and abiotic factors

    • e.g. -The big brown bat biotic niche factors are the insects it eats and its competitors.
    • -The bat's abiotic niche factors include the place it uses for roosting and hibernation and the airspace it flies through when hunting
  6. Predator
    An organism that kills another organism known as it's prey

    e.g. The wolf is a predator for a moose
  7. Prey
    The organism that is eaten by another organism also known as its predator

    The moose is the prey for a wolf
  8. Mutualism
    Symbiosis in which both benefit

    e.g. The relationship between the coral and algae is known as mutualism. The algae provides the coral with energy and the coral provides it with protection
  9. Parasite
    • An organism whose niche is dependent on a close association with a larger host

    e.g. The brain worm is a parasite for the white tailed deer
  10. Competition
    When two of the same organism compete for the same resource such as food, water, and space

    e.g. There is competition between grass and a dandelion. They compete for sunlight
  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 the population to double
  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

    Canada has one of the largest ecological footprint
  14. Unsustainable
    a pattern of activity that leads to a decline in the functions of an ecosystem

    e.g. Non-renewable resources is unsustainable
  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

    Ecosystems  services include: the provision of clean food and clean water, the cycling of nutrients, the conversion of atmospheric carbon into biomass (which influences climate and weather)
  17. Desertification
    The change of non desert land to a desert

    This may result from climate change and unsustainable farming or water use
  18. Ecotourism
    A form of tourism that is sensitive to the health of an ecosystem and involves recreational activities provided by sustainable ecosystem

    e.g. Snowshoeing