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28 Cards in this Set
- Front
- Back
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Biogeography |
The study of the geography of life and how it changes through space and time |
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Ecology |
The study of interactions between organisms and their environment |
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Ecosystem |
The living organisms within a community and the nonliving component in which they live |
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Biodiversity |
The number of living species in a specified reigon |
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Biogeographic regions |
Continental-scale regions that contain genetically similar groups of plants and animals. |
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Niche |
Resources and environmental conditions that a species requires |
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Habitat |
The physical environment in which an organism lives |
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Community |
The populations of organisms interacting in a geographic area |
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Primary productivity |
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Limiting factor |
Any Factor that prevents an organism from reaching it's reproductive or geographic potential |
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Xerophyte |
plants that are adapted to environments with little available moisture. |
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Annual(Plants) |
plants that go seed to seed , then die each year. |
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Perennial(Plants) |
plants that live longer than one year |
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Allen's Rule |
states that appendage length in mammal's decreases as latitude increases. |
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Predation |
The consumption of one organism by another |
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Parasitism |
when 1 species gains nutrients by attaching to a host |
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Competition |
An interaction between organisms that require the same resources |
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Mutualism |
A relationship between two species from which both species benefit |
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Sweepstakes dispersal |
dispersal across an extensive region of inhospitable space |
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Colonization |
successful establishment of a population in a new geographic region without the help of people |
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Invasion |
the successful and unwanted establishment of a species in a new geographic area as a result of human activity |
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Endemic |
A species that is restricted to a one location |
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Ecological Disturbance |
A sudden event that disrupts an ecosystem |
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Primary Producer |
An organism that can convert sunlight into chemical energy through photosynthesis |
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Consumer |
any organism that consumes a primary producer |
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Food Chain |
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The 10% rule |
With each higher tropic level, only 10% of available energy is passed on |
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Decomposer |
An organism that breaks organic material down into simple compounds |
