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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

COMPARATIVE ECOLOGY OF THE GOLDEN-WINGED WARBLER AND BLUE-WINGED WARBLER ON RECLAIMED MINES IN SOUTHEASTERN KENTUCKY

Patton, Laura L. 01 January 2007 (has links)
The golden-winged warbler (Vermivora chrysoptera) inhabits lower elevations on reclaimed surface mines in Kentucky, an indication of recent range expansion in this imperiled species. In 2004 and 2005, I compared breeding habitat between the golden-winged warbler and blue-winged warbler (V. pinus) in eastern Kentucky at landscape, territory, and nest site scales. Distance to forest edge averaged 38 m for the golden-winged warbler and 33 m for the blue-winged warbler. Maximum territory size averaged 1.5 ha for the golden-winged warbler and 2.1 ha for the blue-winged warbler. The golden-winged warbler occurred at higher elevations (up to 912 m) than the blue-winged warbler (up to 693 m). Golden-winged warblers occurred on flatter slopes when coexisting with bluewinged warblers. A higher percentage of grass cover occurred in golden-winged warbler territories where blue-winged warblers were absent compared to territories of either species where the two coexisted. Golden-winged warblers coexisting with blue-winged warblers were more often found in shrub cover than when they established territories in absence of blue-winged warblers. Management for the golden-winged warbler should focus on enhancement of transition zones between forest edges and open grasslands, especially at higher elevations.
2

THE FORESTRY RECLAMATION APPROACH: MEASURING SEDIMENT MASS ACCUMULATION RATES IN RECLAIMED MINE LANDS AND NATURALLY REGENERATED LOGGED FORESTS OF EASTERN KENTUCKY

Bond, William E. 01 January 2019 (has links)
The spread of surface coal mining has resulted in loss of forests in the Appalachian region. The Forestry Reclamation Approach (FRA) was developed to provide guidance for restoring forests on reclaimed mined land. This study hypothesizes that the FRA will result in larger magnitude of sediment accumulation rates in reclaimed mine sites compared to those reclaimed using grassland reclamation. Three sediment cores and six trenches were sampled within four reclaimed mined and three previously logged sites in eastern Kentucky. Samples were processed for radionuclides, grain-size, stable isotopes (δ13C), and POC. LIDAR data were used to identify valley fills, while historical aerial photography was used to identify changes in vegetative cover from 1994 to 2016. Radionuclide dating was used to determine sediment accumulation rates over the previous 100 years. Results from logged sites are inconclusive. δ13C data for all sites fall within the range expected for forested landscapes (C3), and do not show any transitions from grassland to forests. POC data indicates that inventories and fluxes were the same for mined and logged sites. Sediment accumulation rates for reclaimed mined lands show elevated values after the implementation of the FRA, compared to grassland reclamation, thus supporting the hypothesis for previously mined sites.

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