Terry L. Sharik

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A Forest Site Quality Index (FSQI) formulated to predict site quality in Ridge and Valley terrain based on the topographic parameters of aspect, slope inclination and slope position was used to verify moisture gradients along the southeast face of Potts Mountain in Craig County, Virginia. A gradient of site quality index values representing xeric to mesic(More)
1Department of Wildland Resources, Utah State University, Logan, UT 84322, USA 2Rocky Mountain Research Station, USDA Forest Service, Fort Collins, CO 80526, USA 3Department of Forest Ecosystems and Society, Oregon State University, Corvallis, OR 97331, USA 4Department of Forest Resources, University of Minnesota, Saint. Paul, MN 55108, USA 5BC Ministry of(More)
The rate of change of leaf mass, N and P levels in understory vegetation at various levels of canopy cover were measured for 2 years following canopy cover manipulations in northern red oak (Quercus rubra L.) and red pine (Pinus resinosa Ait.) stands in northern Lower Michigan, USA. Canopy cover treatments consisted of clearcut, 25% (50% during first(More)
The global population of the Neotropical migrant Golden-winged Warbler (Vermivora chrysoptera) has declined steadily over the past fifty years. While factors influencing this decline have been well researched on the breeding grounds, little is known about the distribution and habitat requirements of this warbler on its stationary non-breeding range. Recent(More)
Over the last three decades the fungus Discula destructiva Redlin has severely impacted Cornus florida L. (flowering dogwood— hereafter “dogwood”) populations throughout its range. This study estimates historical and current dogwood populations (number of trees) across the Appalachian ecoregion. Objectives were to (1) quantify current dogwood populations in(More)
Beech bark disease (BBD) is a non-native association between a scale insect (Cryptococcus fagisuga) and one or more pathogenic ascomycetes in the genus Neonectria resulting in rapid and widespread mortality of American beech (Fagus grandifolia) in North America. To observe the effects of BBD, forest health indicators and composition metrics such as basal(More)