Quadrat

Quadrat - Wikipedia, the free encyclopedia a:lang(ar),a:lang(ckb),a:lang(fa),a:lang(kk-arab),a:lang(mzn),a:lang(ps),a:lang(ur){text-decoration:none}a.new,#quickbar a.new{color:#ba0000} /* cache key: enwiki:resourceloader:filter:minify-css:4:c88e2bcd56513749bec09a7e29cb3ffa */ if ( window.mediaWiki ) { mw.config.set({"wgCanonicalNamespace": "", "wgCanonicalSpecialPageName": false, "wgNamespaceNumber": 0, "wgPageName": "Quadrat", "wgTitle": "Quadrat", "wgCurRevisionId": 454373247, "wgArticleId": 511307, "wgIsArticle": true, "wgAction": "view", "wgUserName": null, "wgUserGroups": ["*"], "wgCategories": ["Articles lacking sources from October 2010", "All articles lacking sources", "Ecological definitions", "Environmental statistics", "Ecology stubs"], "wgBreakFrames": false, "wgRestrictionEdit": [], "wgRestrictionMove": [], "wgSearchNamespaces": [0], "wgFlaggedRevsParams": {"tags": {"status": {"levels": 1, "quality": 2, "pristine": 3}}}, "wgStableRevisionId": null, "wgVectorEnabledModules": {"collapsiblenav": true, "collapsibletabs": true, "editwarning": true, "expandablesearch": false, "footercleanup": false, "sectioneditlinks": false, "simplesearch": true, "experiments": true}, "wgWikiEditorEnabledModules": {"toolbar": true, "dialogs": true, "hidesig": true, "templateEditor": false, "templates": false, "preview": false, "previewDialog": false, "publish": false, "toc": false}, "wgTrackingToken": "ef29328bb8db985431b0f48c19c499a7", "wikilove-recipient": "", "wikilove-edittoken": "+\\", "wikilove-anon": 0, "mbEditToken": "+\\", "Geo": {"city": "", "country": ""}, "wgNoticeProject": "wikipedia"}); } if ( window.mediaWiki ) { mw.loader.load(["mediawiki.page.startup"]); } Quadrat From Wikipedia, the free encyclopedia Jump to: navigation, search For other uses of Quadrat, see Quadrat (disambiguation). This article does not cite any references or sources. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (October 2010) A quadrat sample used to measure the percentage cover of certain species.

Bernd and Hilla Becher: Mines and Mills-Industrial Landscape at the Fotomuseum in Winterthru
The exhibition curated by Heinz Liesbrock was organized by the Josef Albers Museum Quadrat in Bottrop and presented there in 2010. Additional loans were provided by the SK Stiftung Kultur. The exhibition at Fotomuseum Winterthur is curated by Thomas Seelig.
http://artdaily.org/index.asp?int_sec=11&int_new=52003&int_modo=1

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A quadrat is a square (of either metal, wood, or plastic) used in ecology and geography to isolate a sample, usually about 1m2 or 0.25m2. The quadrat is suitable for sampling plants, slow-moving animals (such as millipedes and insects), and some aquatic organisms. When an ecologist wants to know how many organisms there are in a particular habitat, it would not be feasible to count them all. Instead, he would be forced to count a smaller representative part of the population, called a sample. Sampling of plants or animals that do not move much (such as snails), can be done using a sampling square called a quadrat. A suitable size of a quadrat depends on the size of the organisms being sampled. For example, to count plants growing on a school field, one could use a quadrat with sides 0.5 or 1 meter in length.

19 injured in bus-tanker collision at Doda
Out of seventeen, six seriously injured were identified as Pyar Nath, 36, son Chandi Ram of Ranka, Ghulam Nabi, 55, son of Ameer of Marmat Doda, Mohammad Rafiq, 30, son of Quadrat Ullah of Bhagwah, Doda Sanjay Kumar, 30, son of Nath Ram Sharma of Udyanpur ...
http://www.kashmirtimes.com/news.aspx?ndid=21654&ct=kashmir

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It is important that sampling in an area is carried out at random, to avoid bias. For example, if one were sampling from a school field, but for convenience only placed quadrats next to a path, this might not give a sample that was representative of the whole field. It would be an unrepresentative, or biased, sample. One way one can sample randomly is to place the quadrats at coordinates on a numbered grid. Long-term studies may require that the same quadrats be revisited months or even years after initial sampling. Methods of relocating the precise area of study vary widely in accuracy, and include measurement from nearby permanent markers, use of total station theodolites, consumer-grade GPS, and differential GPS1 . References ^ Dodd, M. (2011). "Where are my quadrats? Positional accuracy in fieldwork". Methods in Ecology and Evolution. doi:10.1111/j.2041-210X.2011.00118.x. http://onlinelibrary.wiley.com/doi/10.1111/j.2041-210X.2011.00118.x/abstract. External links Ecological Sampling Methods

New president ready to give artistic licence
Dr Kerr succeeds Simon Quadrat in the role of president. He stepped down in June following a row over "populist" art such as exhibitions by Jack Vettriano and work by Damien Hirst being shown at the academy. The RWA was founded by Ellen Sharples ...
http://www.thisisbristol.co.uk/New-president-ready-artistic-licence/story-13828680-detail/story.html