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Effects Of Turbidity On The Foraging Abilities Of Brook Trout (Salvelinus Fontinalis) And Smallmouth Bass (Micropterus Dolomieu), John A. Sweka
Effects Of Turbidity On The Foraging Abilities Of Brook Trout (Salvelinus Fontinalis) And Smallmouth Bass (Micropterus Dolomieu), John A. Sweka
Graduate Theses, Dissertations, and Problem Reports
Sedimentation is the major pollutant of waters in North America. Most research on the effects of increased sedimentation has focussed on its effects on stream habitat and its ramification on the reproductive potential of fish. Although relatively large sediment loads may be necessary to alter stream habitat, only small loads are needed to raise mean stream turbidity levels. Turbidity may be an important, yet relatively unexamined factor in stream fish production. With this, I sought to determine the influence of elevated turbidity on the foraging abilities of two predatory species representing both cold and warm water stream habitas, brook trout …
Forest Songbird Abundance And Viability At Multiple Scales On The Monongahela National Forest, West Virginia, Thomas Eugene Demeo
Forest Songbird Abundance And Viability At Multiple Scales On The Monongahela National Forest, West Virginia, Thomas Eugene Demeo
Graduate Theses, Dissertations, and Problem Reports
Songbird-habitat relationships were investigated using three interrelated studies, each at multiple scales, on the Monongahela National Forest, West Virginia. In each study I used landscape (25 km2), transect (2500 m), and point (50-m radius point count plot) scales.;In the first study, I investigated bird abundance and species richness at these scales 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 greatest in the mixed …
Identifying Structural Differences In Mixed Mesophytic And Northern Hardwood Forests On The Monongahela National Forest Using Remote Sensing Data, John Richard Bender Jr.
Identifying Structural Differences In Mixed Mesophytic And Northern Hardwood Forests On The Monongahela National Forest Using Remote Sensing Data, John Richard Bender Jr.
Graduate Theses, Dissertations, and Problem Reports
This thesis is a study of field data and remotely sensed data to evaluate the structural diversity, texture, spectral and spatial differences between forest stands of three age classes (50--69, 70--89, and >90 years) in the Cheat District on the Monongahela National Forest. The structural diversity was determined with foliage-height profiles for 48 stands ranging from 52 to 148 years old. Structural diversity was highest in the 70--89 and >90 year old stands and lowest in the 50--69 year old stands. The structural characteristics of the 70--89 and >90 year old stands were characterized by greater numbers of larger trees, …
Survey And Home Range Analyses Of Wintering Shorebirds Using The Lanark Reef Shorebird Complex, Franklin Co., Florida, Christine Marie Gunnels
Survey And Home Range Analyses Of Wintering Shorebirds Using The Lanark Reef Shorebird Complex, Franklin Co., Florida, Christine Marie Gunnels
Graduate Theses, Dissertations, and Problem Reports
Radio telemetry was used to document spatial variation in use by wintering shorebirds at a series of sites believed to form the Lanark Reef Shorebird Complex in Franklin County. Fifty and 95% convex polygon home range estimate for Willets (Catoptrophorus semipalmatus) averaged 0.52 km 2 and 14.85 km2, respectively. Fifty and 95% convex polygon home range estimate for the Black-bellied Plover (Pluvialis squatarola) averaged <0.01 km2 and 0.10 km 2, respectively. Fifty and 95% convex polygon for the Marbled Godwit (Limosa fedoa) and Long-billed Curlew (Numenius americanus ) was 0.32 km2, and 6.72 km2, and 0.36 km2 and 24.41 km2, respectively. Black-bellied Plovers appeared to have the smallest distance between locations followed by Willets, Long-billed Curlews and Marbled Godwits.;Replicate shorebird surveys were conducted on the reef and count data were regressed against four environmental variables (wind speed, tide height, cloud cover, and temperature). Regression results (R2 adj) accounted for 45% and 66% of the variance in total shorebird counts on the Reef for 1996 and 1997, respectively. Shorebird total counts were positively correlated with tide height for 1996 and 1997 (P < 0.01).