Transect: Difference between revisions
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{{For|the urban planning approach|Transect (urban)}} |
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A '''transect''' is a path along which one counts and records occurrences of the specie of study (e.g. plants). |
A '''transect''' is a path along which one counts and records occurrences of the specie of study (e.g. plants). |
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The estimation of the abundance of populations (such as terrestrial mammal species) can be achieved using a number of different types of transect methods, such as [[strip transect]]s, [[Line-intercept sampling|line transects]], [[belt transect]]s, [[point transect]]s<ref>Buckland, S.T., Anderson, D.R., Burnham, K.P and Laake, J.L. 1993. ''Distance Sampling: Estimating Abundance of Biological Populations''. London: Chapman and Hall. ISBN 0-412-42660-9 [http://www.colostate.edu/Dept/coopunit/download.html Online version]</ref> and [[curved line transect]]s.<ref>Line Lex Hiby, M. B. Krishna 2001. Transect Sampling from a Curving Path. Biometrics. 57(3):727-731 [http://www.creem.st-and.ac.uk/tiago/webpages/pdfs/Hiby&Krishna2001.pdf]</ref> |
The estimation of the abundance of populations (such as terrestrial mammal species) can be achieved using a number of different types of transect methods, such as [[strip transect]]s, [[Line-intercept sampling|line transects]], [[belt transect]]s, [[point transect]]s<ref>Buckland, S.T., Anderson, D.R., Burnham, K.P and Laake, J.L. 1993. ''Distance Sampling: Estimating Abundance of Biological Populations''. London: Chapman and Hall. ISBN 0-412-42660-9 [http://www.colostate.edu/Dept/coopunit/download.html Online version]</ref> and [[curved line transect]]s.<ref>Line Lex Hiby, M. B. Krishna 2001. Transect Sampling from a Curving Path. Biometrics. 57(3):727-731 [http://www.creem.st-and.ac.uk/tiago/webpages/pdfs/Hiby&Krishna2001.pdf]</ref> |
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(from highest to lowest density) are: urban core, urban centre, general urban, suburban, rural, and natural.<ref>[http://www.dpz.com/transect.aspx Transect. Duany Plater-Zyberk & Company (DPZ). Undated]</ref> |
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== See also == |
== See also == |
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*[[Mark and recapture]] |
*[[Mark and recapture]] |
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*[[Distance sampling]] |
*[[Distance sampling]] |
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*[[Transect (urban)]] |
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*[[MegaTransect]] |
*[[MegaTransect]] |
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{{reflist}} |
{{reflist}} |
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== External links == |
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{{Wiktionary}} |
* {{Wiktionary-inline}} |
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[[Category:Scientific observation]] |
[[Category:Scientific observation]] |
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Revision as of 21:51, 2 March 2015
A transect is a path along which one counts and records occurrences of the specie of study (e.g. plants).
It requires an observer to move along a fixed path and to count occurrences along the path and, at the same time (in some procedures), obtain the distance of the object from the path. This results in an estimate of the area covered and an estimate of the way in which detectability increases from probability 0 (far from the path) towards 1 (near the path). Using the raw count and this probability function, one can arrive at an estimate of the actual density of objects.
The estimation of the abundance of populations (such as terrestrial mammal species) can be achieved using a number of different types of transect methods, such as strip transects, line transects, belt transects, point transects[1] and curved line transects.[2]
See also
References
- ^ Buckland, S.T., Anderson, D.R., Burnham, K.P and Laake, J.L. 1993. Distance Sampling: Estimating Abundance of Biological Populations. London: Chapman and Hall. ISBN 0-412-42660-9 Online version
- ^ Line Lex Hiby, M. B. Krishna 2001. Transect Sampling from a Curving Path. Biometrics. 57(3):727-731 [1]
External links
The dictionary definition of transect at Wiktionary
