State Water Resources Research Institute Program

Project ID: 2009KY130B
Title: Evaluating the impact of hemlock woolly adelgid invasion on headwater streams
Project Type: Research
Start Date: 3/01/2009
End Date: 2/28/2010
Congressional District: Kentucky 5th, 6th
Focus Categories: Water Quality, Invasive Species, Surface Water
Keywords: benthic macroinvertebrates, ecological function, stream chemistry
Principal Investigator: Rieske-Kinney, Lynne
Federal Funds: $ 5,000
Non-Federal Matching Funds: $ 10,000
Abstract: The study is geared to evaluate the effects of hemlock wooly adegid (HWA) on headwater stream quality. We will evaluate the extent to which HWA invasion affects (1) stream and riparian macroinvertebrate community dynamics, (2) stream chemistry (focusing on carbon, nitrogen, and phosphorus), and (3) physical stream characteristics, including temperature, dissolved oxygen, conductivity, and turbidity. By comparing these parameters in streams with hemlock dominated riparian vegetation and streams with deciduous dominated vegetation, our study will provide insight into the direct and indirect consequences of riparian eastern hemlock loss due to HWA. We will also contribute to the knowledge base necessary for preservation of this threatened ecosystem by generating baseline information for preservation of sensitive aquatic species such as the federally listed blackside dace (Phoxinus cumberlandensis), duskytail darter (Etheostoma percnurum), Cumberland elktoe (Alasmidonta atropurpurea), and others.

Progress/Completion Report, 2009, PDF

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