Quadrat

Quadrat

Unit of environmental samples, consisting of a square frame known area. Quadrat is used to quantify the number or percentage of cover of this type within this area. See also section.

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Industry/Domain: Biology
Category: Marine biology
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quadrat

Natural environment; Coral reefs

A square or rectangular sampling unit of known area (e.g.,1 m2) within which organisms are counted or measured. Quadrats can be used to estimate the percent cover of each species ...

quadrate

Natural environment; Coral reefs

Square-shaped.

quadrate

Education; SAT vocabulary

quadrate, is to divide into quarters, divide in four parts.

quadrat

Anthropology; Cultural anthropology

A rectangular sampling unit.

quadrat

Biology; Marine biology

An ecological sampling unit that consists of a square frame of known area. The quadrat is used for quantifying the number or percent cover of a given species within a given area. ...

quadrat

Geography; Physical geography

A square frame with a measured grid of wire within it used to lay over surfaces and enable systematic sampling.

macroplankton

Biology; Marine biology

Planktonic organisms that are 200-2,000 micrometers in size.

nanoplankton

Biology; Marine biology

Planktonic organisms that are 2-20 micometers in size.

megaplankton

Biology; Marine biology

Planktonic organisms that are greater than or equal to 2000 micrometers in size.

mixoplankton

Biology; Marine biology

Planktonic organisms that can be classified at several trophic levels. For example, some ciliates can be photosynthetic but also can ingest other plankton and are heterotrophic.

logistic population growth

Biology; Marine biology

Population growth that is modulated by the population size relative to carrying capacity. Population growth declines as population approaches carrying capacity, and is negative ...

global warming

Biology; Marine biology

Predicted increase in the earth's oceanic and atmospheric temperature, owing to additions of carbon dioxide to the atmosphere, as a result of human activities.

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