Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 10 of 10 for “"northern hardwoods"”.
-
An Evaluation of Concepts and Tools for Managing the Northern Hardwoods
Across the northern hardwoods of North America, there is considerable variation at the stand level (e.g. species composition, stocking, and growth) as well as among individual trees (e.g. stem quality, value, and growth). This variation challenges the management of the northern hardwoods by …
-
Modeling the impact of gypsy moth defoliation in individual tree mortality and basal area growth of northern hardwoods of central Pennsylvania
Data for this study were collected by the US Forest Service and the Pennsylvania Bureau of Forestry on nearly 600 plots in central Pennsylvania. Tree and stand characteristics recorded between 1978 and 1985 include estimates of percent defoliation on individual trees. Logistic regression using …
-
Effect of fire and wind-throw on a forest area
… effect of fire and wind-throw on a spruce-fir-northern hardwoods forest on Peaks Island, Casco Bay, Maine. Six years after the burn, data for the effect of fire on approximately 170 acres of this forest type, were collected and categorized. The qualitative characteristics of the herb and shrub …
-
Modeling the Distribution of the Northern Hardwood Forest Type in Carolina Northern Flying Squirrel (Glaucomys sabrinus coloratus) Recovery Areas of the Southern Appalachians
The northern hardwood forest type is a critical habitat component for the endangered Carolina northern flying squirrel (CNFS; Glaucomys sabrinus coloratus) for denning sites and corridor habitats between montane conifer patches where the squirrel forages. This study examined terrain data, and …
-
Forest songbird abundance and viability at multiple scales on the Monongahela National Forest, West Virginia
… in four major forest types: mixed mesophytic, northern hardwoods, red spruce, and dry oaks. At the landscape scale, forest types differed in bird abundance (p = 0.07) and species richness (p = 0.08). Abundance of forest-interior species, Neotropical migrants, and nine key indicator species were …
-
A Dendrochemical Analysis of Lead, Aluminum, and Calcium in Southern Appalachian American Beech.
<p>The health of the northern hardwood forest in the Southern Appalachian Mountains of Tennessee, North Carolina, and Virginia has recently gained attention from the media and environmental stakeholders. This project was designed to examine concentrations of metals, including lead, aluminum, and …