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Population Definition
all the individuals of a species that occupy a particular geographic area at a certain time. e.g humans and deer
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Exponential Growth Definition
accelerating growth that produces a J shaped curve when the population is graphed against time
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Limiting factors Definition
a factor that limits the growth, distribution, or amount of a population in an ecosystem
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Carrying Capacity Definition
the size of a population that can be supported indefinitely by the available resources and services of an ecosystem
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Ecological niche Definition
the way in which an organism occupies a position in n ecosystem, including all the necessary biotic and abiotic factors
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Ecological Footprint Definition
a measure of the impact of an individual or a population on the environment in terms of energy consumption, land use, and waste production
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Predator Definition
an organism that kills and consumes other organisms e,g wolf
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Prey Definition
an organism that is eaten as food by a predator
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Parasite Definition
an organism whose niche is dependent on a close association with a larger host organism
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Mutualism Definition
a symbiotic relationship between two species in which both species benefit from the relationship
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Competition Definition
when two or more organisms compete for the same resource in the same location at the same time
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Sustainable use Definition
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
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Doubling time Definition
the period of time that is required for a population to double in size
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Unsustainable Definition
a pattern of activity that leads to a decline in the function of an ecosystem
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Sustainability Definition
use of Earth's resources, including land and water, at levels that can continue forever
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Ecosystem Services Definition
the benefits experienced by organisms, including humans that are provided by sustainable ecosystems
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Desertification Definition
the change of non-desert land into desert, which may result from climate change or from unsustainable farming or water use
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Ecotourism Definition
a form of tourism that is sensitive to the health of an ecosystem and involves recreational activities provided by sustainable ecosystems
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