U.S. Geological Survey Home Page USGS Patuxent Wildlife Research Center Science Meetings; dedicated to Chandler S. Robbins USGS Patuxent Wildlife Research Center; Science Meetings dedicated to Chandler S. Robbins Dedicated to Chan Robbins USGS Patuxent Wildlife Research Center; Science Meetings dedicated to Chandler S. Robbins Poster Abstracts from USGS Patuxent Wildlife Research Science Meetings, October, 2006
Patuxent Science Meeting 2006 Poster Abstract

Effects of multiple stressors on aquatic communities in the Prairie

Pothole region

Guntenspergen GR, Schoff PK, Johnson LB, Johnson WC

The prairie pothole region (PPR), forming the northeastern edge of the Great Plains,

encompasses a large area of diverse wetlands that represent crucial aquatic resources for flood

control and aquatic and terrestrial production. Because most of the PPR is subject to mixed

use agriculture and open grazing, the wetlands are routinely exposed to a variety of

anthropogenic stressors, such as pesticides, nutrients, and domestic animal pathogens. In

addition, higher latitudes are exposed to increased ultraviolet B radiation (UV-B). Climate

models indicate that the PPR is likely to be severely impacted by climate change through

increasing temperature and reduced precipitation. The objectives of this research are to: (1)

Quantify relationships among land use, amphibian community structure, and composition in the

prairie pothole region, (2) Quantify relationships among physical and chemical wetland

attributes on amphibian organismal and community responses, (3) Quantify the effects of

multiple stressors on organismal responses of northern leopard frog (Rana pipiens), and (4)

Predict potential effects of multiple stressors on prairie pothole wetlands and associated

amphibian communities.

Friday, September 22, 2006



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