Timber harvest provides favorable habitat for many species of shrub-dependent birds. Because of historical dominance, effect of clearcutting on early successional birds has been widely studied, but less information is available on alternatives such as shelterwood and group selection, which have become a more dominant means of regenerating pines (Pinus spp.) on federal lands of the southeastern ...

We present 27-year results from a comparison of clear-cutting and shelterwood harvesting in the boreal forest of Alaska. Three patch clear-cut and three shelterwood units were harvested in 1972; about 100 dispersed white spruce (Picea glauca (Moench) Voss) leave trees per hectare were retained in the shelterwoods. Units were mechanically scarified and an exceptionally large seed-crop was disper...

The present study is the outcome of vegetation sampling conducted in managed and unmanaged forest patch under irregular shelterwood system to analyze community structure plant diversity a degraded mixed eastern Terai, Nepal. Systematic random was followed by laying out 15 quadrates sized 4m2 with uniform spacing 50 meters both blocks, respectively. This revealed that first second-year regenerat...

Pre-commercial thinning is a thinning method performed prior to trees reaching merchantable size, typically around 4.5 inches dbh (diameter at breast height measured at 4.5 ft. above the ground). The objective of a pre-commercial thinning is to release some trees in overstocked stands by reducing densities to prevent stagnation and increase the growth of the remaining trees. Many southern pine ...

Oaks (Quercus) are economically important, and their seed (acorns) a valuable food for many animals. Thus, forest managers must consider potential tradeoffs between oak growth acorn production. I used 13 years of dbh 17 trapping data on 195 trees five common eastern species to compare stand-level production closed canopy mature (M) recent shelterwood with reserves regeneration harvests (SW) (BA...