The Long-tailed Wood-Partridge (Dendrortyx macroura) is a species endemic to Mexico, inhabiting dense coniferous forests of the Trans-Mexican Volcanic Belt and the Sierra Madre del Sur, of which little is known about its ecology and conservation status. The abundance and density of the Long-tailed Wood-Partridge was estimated by point counts with playback distance sampling from March–October of 1998–2000 in a temperate coniferous forest managed for timber production by a Mexican indigenous community. The average detection rate was 0.31 individuals per point, resulting in a mean estimate for population density of 20.9 birds/km2 and a mean population estimate of 2679 individuals, estimated using the half-normal key function with cosine adjustments. Density estimates of the Long-tailed Wood-Partridge were 8 individuals/km2 in dry, open, scrubby habitats with deep ash and sand volcanic deposits subject to intense human use and in closed canopy, humid forests with moderate human disturbance. Density estimates were 14.6 and 21.5 individuals/km2 in humid, closed canopy, multi-stratified forests. The latter areas are recommended as the core area for protection of the Long-tailed Wood-Partridge.
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Vol. 75 • No. 4