Term
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Definition
An assemblage of populations living close enough together for potential interaction
Described by its species composition |
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Term
| Interspecific Interactions |
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Definition
| Relationships with other species in the community |
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Term
| Interspecific Competition |
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Definition
| Two different species compete for the same limited resource |
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Term
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Definition
Sum of an organism’s use of biotic and abiotic resources
Interspecific competition occurs when the niches of two populations overlap |
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Term
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Definition
| A pattern of feeding relationships consisting of several different levels |
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Term
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Definition
| Sequence of food transfer up the trophic levels |
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Term
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Definition
Support all other trophic levels
Autotrophs |
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Term
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Definition
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Term
| Detritivores and Decomposers |
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Definition
| Derive energy from dead matter and wastes |
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Term
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Definition
| A network of interconnecting food chains |
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Term
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Definition
Species richness
Relative abundance |
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Term
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Definition
A species whose impact on its community is larger than its biomass or abundance indicates
Occupies a niche that holds the rest of its community in place |
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Term
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Definition
Events that damage biological communities
Storms, fire, floods, droughts, overgrazing, or human activity
The types, frequency, and severity of disturbances vary from community to community |
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Term
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Definition
Colonization by a variety of species
A success of change gradually replaces other species |
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Term
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Definition
| Begins in a virtually lifeless area with no soil |
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Term
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Definition
| When a disturbance destroyed an existing community but left the soil intact |
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Term
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Definition
| All the organisms in a community as well as the abiotic environment |
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Term
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Definition
Energy flow
Chemical cycling |
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Term
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Definition
The amount of solar energy converted to chemical energy
Carried out by producers
Produces biomass |
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Term
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Definition
Cycle chemicals between organisms and the Earth
Can be local or global |
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Term
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Definition
| Carried out by some bacteria and cyanobacteria |
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Term
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Definition
Changes in land use
Climate warming |
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Term
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Definition
| One that is “in danger of extinction throughout all or a significant portion of its range” |
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Term
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Definition
| Those likely to become endangered in the foreseeable future |
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Term
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Definition
Compete with native species
Prey on native species
Parasitize native species |
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Term
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Definition
| Release of chlorofluorocarbons from aerosol cans and manufacturing |
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Term
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Definition
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Term
| Conservation biology priority |
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Definition
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Term
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Definition
| Dynamics of a collection of ecosystems |
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Term
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Definition
Extensive region of land with one or more areas undisturbed by humans
Contributes to sustainable development |
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Term
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Definition
| Uses ecological principles to restore environments |
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Term
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Definition
Bioremediation
Replanting native vegetation
Repairing waterways and wetlands |
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