| Term | Definition |
|---|
| quadrant | Used to measure a population. A small square area, in which all individuals are counted. Quadrants can be temporary of left to study change over time. They can be placed at regular intervals or random. |
| direct count | the actual number of each species counted. |
| area coverage | this method is good if you have a lot of organisms. This method gives the area covered by the species not the actual number. |
| quick estimate | an estimate of the number of organisms in the quadrant/sample. |
| line transect | individuals along a line counted at regular intervals. |
| belt transect | individuals within a band that are counted. Often used in forestry. |
| mark and recapture | Used measure a population of animals that move around. They are caught, marked, released and after an appropriate time, another sample is collected. |
| Predation | a biological interaction where a predator (an organism that hunts) feeds on its prey, the organism that is attacked |
| emmigration | the act of a population leaving one's native area to settle in another |
| autotophs | organisms that can make their own food |
| abiotic | non-living factors |
| antibiosis | an association between two organisms, especially microorganisms, that is harmful to one of them. |
| biomass | biological material derived from living, or recently living organisms |
| commensalism | two different species of plant and animals that live in close association |
| competition | an event where organisms compete for a niche, food source or resource |
| chemo-autotroph | organisms that use chemicals to produce their own food. |
| climax community | the state of development of a community in an area over time, where it has reached a stable state |
| canopy | the upper level in a forest that is higher than other layers |
| detritivore | organism that feeds on decayed material |
Combine with other sets
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