Line Transect Method of Estimating Grouse Population Densities

Abstract

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Conservation Status and Abundance of the Crowned Sifaka (Propithecus coronatus)

“…The Betsiboka-Ikopa region remains to be more carefully surveyed in order to determine if the species was ever or is still present. Meyers and Ratsirarson, (1989) LT-DS: Line transect-distance sampling; Field method: Müller (Müller et al 2002); CDS: Conventional Distance Sampling (Buckland et al 2001);Whitesides (Whitesides, 1988); MPD: Mean Perpendicular Distance (Gates et al 1968). Table 6: Conservation status update for crowned sifaka (Propithecus coronatus).…”

Akaike Information Criterion to Select the Parametric Detection Function for Kernel Estimator Using Line Transect Data

“…The negative exponential model and the half normal model are the most prominent models. Gates et al (1968) suggested the negative exponential model with detection function, The corresponding pdf is,…”

On Counts of Organisms Able to Signal the Presence of an Observer

“…As an illustration we reexamine the data on ruffed grouse from the Cloquet Forest Research Center that were first discussed in the statistical literature by GATES et al (1968). These authors commented that one reason for the failure of the data to follow a Poisson distribution could be the tendency of the birds to flush in pairs.…”