Chapter 4, Estimating Density: Quadrat Counts

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Chapter 4 Estimating density : Quadrat Counts (Version 5, 27 January 2017) Page Quadrat SIZE AND SHAPE ........................................ .................................. 137 Wiegert's Method ........................................ ........................................ .141 Hendricks' Method ........................................ .......................................1 46 When Should You Ignore these Recommendations ? .....................148 STATISTICAL DISTRIBUTIONS ........................................ .............................. 149 Poisson Distribution ........................................ ...................................151 Negative Binomial Distribution ........................................ ...................160 LINE INTERCEPT METHOD.

highest statistical precision for a given total area sampled, or for a given total amount of time or money, (2) ecologically, as that quadrat size and shape that are most efficient to answer the question being asked, and (3) logistically, as that quadrat size and shape that are easiest to put out and use. You should be wary of the logistical criterion since in

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