Forest management Forest ecology Ecosystem management Forests and forestry Biodiversity Bird populations Ponderosa pine Wildlife conservation Wildlife management Aspen Growth Biodiversity conservation Forest nurseries Forest regeneration Forest reserves Forest reserves Recreational use Mountain pine beetle Outdoor recreation Range management Rangelands Watershed management Birds Conservation Forest animals Forest management Mathematical models Forests and forestry Measurement Fraser Experimental Forest (Colo.) Natural resources Management Ponderosa pine Ecology Restoration ecology Sampling (Statistics) Songbirds Ecology