quadrat


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Related to quadrat: quadrat sampling

quadrat

(kwŏd′rət, -răt′)
n.
Any of a group of small, usually rectangular plots of land used for sampling the occurrence of species or of archaeological artifacts.
The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

quadrat

an area of ground surface, often 1 m2, used as a sampling unit in population studies.
Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005
References in periodicals archive ?
As for the roller chain method, this procedure was repeated for three transects per quadrat, which were averaged to provide a single mean value for each quadrat.
PVC quadrats were inexpensive and easy to construct.
Seven sample quadrats were taken randomly and decided the species area curves of the vegetation of Yemrehane Kirstos Church Forest.
Coverage was calculated as an average of the percentage coverage estimated in quadrats [adapted from Parada et al.
quadrats within the entire 200 m reach, extending across the entire width of the river for the length of the survey area.
Possible covariates that could be predictors of abundance were depth of the measurements, date, site effect (UPJP versus UPR), type of collection gear or net effect (quadrat, aquarium net, small plankton net, and large plankton net).
To evaluate the suitability of using quadrats, a continuous belt transect survey was conducted using a 0.5 X 0.5-m quadrat along the pre-established 100-m transects running at right angles to the shore (Fig.
On July 30th, the Bay Head Shores site was surveyed again using the quadrat method described above.