Last October, Bass unveiled a new tool he hopes can help save Unit 72 and old-growth forests everywhere. It was a guitar crafted by a renowned luthier from a length of a spruce tree that fell when the USFS cut a logging road to the edge of Unit 72. The guitar made its debut at th...
American marten (Manes americana (Turton, 1806)) was traditionally associated with old-growth forests, but recent evidence suggests that they are frequently found in younger forests as well. To better understand habitat requirements by this economically important furbearer, we investigated its fine-...
The economic impacts of these changes could be severe for commercial forestry8, but even more so for the multitude of non-use values that are provided by natural tropical forests9. The biogeographic region of Central America, which is home to unique old-growth forests with high levels of ...
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Species Richness of the Campopleginae and Ichneumoninae (Hymenoptera: Ichneumonidae) Along a Latitudinal Gradient in Eastern North American Old-Growth Forests Skillen, E.L., Pickering, J. & Sharkey, M.J. (2000) Species richness of the Campopleginae and Ichneumoninae (Hymenoptera: Ichneumonidae...
These species occupy most habitats, including the driest deserts and the wettest rain forests. The majority of species seem to be concentrated in the Old World, especially in the Southern Hemisphere. A few are considered to be minor crop pests, many attract public attention because of their size...
In this Letter we reported that hydrologic export of dissolved organic nitrogen (DON) dominates over nitrate in unpolluted old-growth forests across southern Chile and Argentina, but that the reverse pattern occurs in old-growth forests exposed to chronically high rates of nitrogen deposition in east...
More than 99 percent of old-growth, eastern forests have been cleared for agricultural and urban environments or have been replaced by second-growth forests devoid of the once-dominant American chestnuts. The oak savannas of the Midwest have been reduced to tiny remnants crowded by corn fields. ...
根据第一段中“Now, scientists have found that thinning early in forest growth creates tougher trees that can endure climate change. What’s more, these thinned forests can suck carbon out of the air just as fast as thick forests.(现在,科学家们发现,在森林生长的早期,疏林可以创造出更坚韧的...
Two strips were located in unmanaged old-growth forests, and 2 were in forests managed under selection cutting. All 4 stands were dominated by sugar maple (Acer saccharum Marsh.) and American beech (Fagus grandifolia Ehrn.). Beech bark disease, an exotic pathology, was observed in all the ...