01399nas a2200157 4500008004100000245003900041210003900080300001100119490000700130520097900137653001101116653001101127653001301138100002001151856007001171 1977 eng d00aEmlen transects in Kansas habitats0 aEmlen transects in Kansas habitats a18 -210 v283 a
The Emlen strip census (Emlen, 1971, 1972) is becoming more and more widely used as a means to measure bird populations, particularly in environmental impact assessment programs. This method has the advantage of being rapid, applicable to a wide variety of habitats, and usable during all seasons of the year. Yet the data produced are only estimates of relative density and hence of minimal value for comparisons between sites and seasons and not usable at all in attempts to determine community biomass densities. Absolute densities can be derived only if empirically determined correction factors (coefficients and detectability) are calculated. Emlen (1971) hypothesized that these coefficients might be species-specific for a given habitat at a given season. If this hypothesis were true and standard coefficients determined, the cost for bird population census work would be decreased and its value in the description of ecological communities would be enhanced
10ahabits10akansas10atransect1 aZimmerman, J.L. uhttp://lter.konza.ksu.edu/content/emlen-transects-kansas-habitats