Ecology chapter 2

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  1. Prey
    An organism consumed by the predator.
  2. Mutualism
    When both members of different species benefit equally.
  3. Competition
    When two or more organisms are forced to compete for the same resources due to a shortage of resources.
  4. Population
    • The size of an individual species in the same geographical area at a certain time.
    • E.g Humans in Russia
    • The population of mockingbirds in the forest
  5. Exponential Growth
    When a population experiences an accelerated growth in population. This usually produces a J-shaped curve when the population is graphed against time.

  6. Carrying Capacity
    • The size of a population that can be nurtured and supported imminently by the resources and conditions present in a current ecosystem.
    • The population is at a balanced stage (equilibrium).
  7. Equilibrium
    The balance and steadiness of two opposing forces.
  8. Ecological Niche
    • How an organism occupies is place in the ecosystem with all the necessary biotic and abiotic factors.
    • The resources an organism uses in the ecosystem.
    • The abiotic factors that are used by the organism.
    • The biotic interactions it has with other organisms.
    • E.g A brown bat uses resources such as the insects it eats and the cave it uses to roost.
    • The biotic niche for the brown bat are the insect that it consumes and the competitors it has such as the nighthawk.
    • The abiotic relationships it has are the caves it uses for nesting.
  9. Sustainable Use
    Use of land and resources that does not deplete its resources  and does not inflict long-term damage and harm upon that ecosystem, or affect the biodiversity of that ecosystem.
  10. Doubling Time
    • The amount of time to takes for a population to double in size.
    • arithmetic_reflections_fig7growthgraph_bartlett
  11. Ecological Footprint
    A measurement of how an individual of a population consumes resources, energy, land production, and waste production on the environment.
  12. Ecosystem Services
    The benefits and positive incentives experienced by all organisms that are provided by sustainable ecosystems.
  13. Desertification
    • The metamorphosis that occurs in a land where it turns from a non-desert land into a desert.
    • This usually occurs because of climate change, and unsustainable use of water.
  14. Limiting Factors
    A factors the restricts the growth, spread (distribution), or amount of a population in an given ecosystem.
  15. Predator
    An organisms that kills other organisms (usually for survival).
  16. Parasite
    • An organism whose niche is dependent on a close association with a larger host animal.
    • B620-01
  17. Ecotourism
    • A form of tourism that utilizes the natural beauty of nature.
    • It involves recreational activities provided by sustainable ecosystems.
  18. Sustanability
    • The broad concept of making resources last as long as possible.
    • It has three pillars:
    • Economics
    • Social
    • And Environmental.
  19. Unsustainable
    • The opposite of sustainable use.
    • Instead of using resources at a rate where they will be replenished by nature, unsustainable use pushes an ecosystem far beyond the regular normal capacity.
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Ecology chapter 2
2015-09-30 01:23:53
Ecology Science Verbs

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