POPULATIONS
About this set
Created by:
sforness on December 18, 2011
Classes:
Field Biology 2011-2012, ENVIRONMENTAL SCI 2011-2012
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28 terms
Terms | Definitions |
|---|---|
 carrying capacity | largest number of individuals of a population that a environment can support |
| limiting factor | an environmental factor that prevents a population from increasing |
| Exponential growth | shown by a J-curve, really fast growth |
| immigration | movement of individuals into an area occupied by an existing population |
| Lincoln equation | mathmatical equation used to estimate total population in an area |
| pit tag | small tag with a barcode that is traceable- used to track/mark organisms |
| abiotic | a non- living factor such as temperature or moisture |
| species | (biology) taxonomic group whose members can interbreed, group of similar organisms that can breed and produce fertile offspring |
| community | (ecology) a group of interdependent organisms inhabiting the same region and interacting with each other |
| population | all the members of one species living in a given area. Ex.- all the maple trees in a forest |
| biotic | of or relating to living organisms |
| invasive | species introduced to a new area where it is causing a problem |
| biotic potential | the maximum reproductive rate of an organism, given unlimited resources and ideal environmental conditions |
| immigrate | migrate to a new environment |
| emigrate | leaving an area to a new environment |
| extirpated | extinct from a particular region, such as a state or a large forest, but still present elsewhere. |
| active capture | physically obtaining the organism-- must be there when its captured |
| passive Capture | leaving a capture device out to trap an organism, such as a Sherman live trap |
| Lincoln equation | N = Mn/m- used to estimate large population sizes |
| Ecosystem | All of the biotic and all of the abiotic factors of an area interacting. |
| Niche | An organisms role in its environment |
| Radio Telemetry | Use of radio transmitters to track organisms |
| Community | All of the populations in an area |
| Logistic | Growth illustrated with an "S" shaped curve |
| Density Dependent Factor | Factor dependent on the amount of organisms in an area (disease, availability of prey) |
| Density Independent Factor | Factor not dependent on amount of organisms in an area (flood, fire, drought) |
| Critical Population Size | number below which the population cannot recover without assistance |
| Mortality Factor | factor that directly causes the death of an organism |
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