- Download PDF (879 KB)
- This publication is available only online.
Design unbiased estimation in line intersect sampling using segmented transects
Environmental and Ecological Statistics. 12(1): 39-154.
In many applications of line intersect sampling. transects consist of multiple, connected segments in a prescribed configuration. The relationship between the transect configuration and the selection probability of a population element is illustrated and a consistent sampling protocol, applicable to populations composed of arbitrarily shaped elements, is proposed. It is shown that this protocol obviates the arbitrary practice of treating multiple intersections of a single particle as independent probabilistic events and preserves the design-unbiasedness of Kaiser's (1983, Biornetrics 39, 965-976) conditional and unconditional estimators, suitably generalized to segmented transect designs. The relative efficiency and utility of segmented transect designs are also discussed from a fixed population perspective.
Affleck, David L.R.; Gregoire, Timothy G.; Valentine, Harry T. 2005. Design unbiased estimation in line intersect sampling using segmented transects. Environmental and Ecological Statistics. 12(1): 39-154.
Last updated on: March 31, 2008