02218nas a2200193   4500008004100000020001400041245015900055210006900214260001300283300001400296490000700310520144900317653002801766100002301794700002501817700002301842700002401865856013501889       2010                        eng d  a0045-506700aPost-harvest seedling recruitment following mountain pine beetle infestation of Colorado lodgepole pine stands: a comparison using historic survey records0 aPostharvest seedling recruitment following mountain pine beetle   cDecember  a2452-24560 v403 aThe extent and severity of overstory lodgepole pine (Pinus contorta var. latifolia Engelm. ex Wats.) mortality from mountain pine beetle (Dendroctonus ponderosae Hopkins) has created management concerns associated with forest regeneration, wildfire risk, human safety, and scenic, wildlife, and watershed resources in western North America. Owing to the unprecedented nature of the outbreak and associated management in the southern Rocky Mountains, it is unknown if the forests that regenerate after this current period of extensive change will differ from those that regenerated in the past. Here, we compare the density and species composition of post-harvest seedling recruits in pre-outbreak (1980-1996) and outbreak stands (2002-2007). Lodgepole pine accounted for more than 95% of post-harvest seedling recruitment and the density of seedlings colonizing clearcuts was equal during both the pre-outbreak and outbreak periods. Compared with harvested areas, the density of tree regeneration was 75% lower in uncut forests and was more evenly distributed among subalpine fir (Abies lasiocarpa (Hook.) Nutt.) and lodgepole pine. This comparison provides evidence that the density of seedling recruitment will be at least as high after extensive pine beetle caused mortality as under healthy, pre-outbreak conditions and that the species composition of stands regenerating after this outbreak will differ between treated and untreated areas.10aDendroctonus ponderosae1 aCollins, Byron, J.1 aRhoades, Charles, C.1 aUnderhill, Jeffery1 aHubbard, Robert, M.  uhttps://weevil.myspecies.info/post-harvest-seedling-recruitment-following-mountain-pine-beetle-infestation-colorado-lodgepole-pine