Just Released: Climate Change and Prairie Pothole Wetlands—Mitigating Water-Level and Hydroperiod Effects Through Upland Management

The following USGS online publication was approved for release and has been made available to the public.USGS Scientific Investigations Report 2015-5004:Climate Change and Prairie Pothole Wetlands—Mitigating Water-Level and Hydroperiod Effects Through Upland ManagementSuggested citation:Renton, D.A., Mushet, D.M., and DeKeyser, E.S., 2015, Climate change and prairie pothole wetlands—Mitigating water-level and hydroperiod effects through upland management: U.S.

Brine Contamination to Aquatic Resources from Oil and Gas Development in the Williston Basin, United States

The Williston Basin, which includes parts of Montana, North Dakota, and South Dakota in the United States and the provinces of Manitoba and Saskatchewan in Canada, has been a leading domestic oil and gas producing region for more than one-half a century. Currently, there are renewed efforts to develop oil and gas resources from deep geologic formations, spurred by advances in recovery technologies and economic incentives associated with the price of oil.


The gray wolf ( Canis lupus) in the 48 contiguous states has been on the Endangered Species List since 1967, with the only remaining mainland population at that time residing in Minnesota. (A population averaging about 25 has also inhabited Isle Royale National Park, Michigan).  Federal research on Minnesota wolves began in 1969 and continues to the present, primarily in the Superior National Forest.  This work has resulted in hundreds of scientific articles and books providing new information about wolves and their prey, and has trained numerous biologists and technicians, that have helped foster wolf-recovery and research efforts in many other states, including wolf restoration to Yellowstone National Park.  Currently wolf populations are established in the following other states:  Wisconsin, Michigan, Wyoming, Montana, Idaho, Washington, Oregon, New Mexico, and Arizona, and the USWS considers the wolf recovered. (Formal delisting has been thwarted several times by court cases citing legal technicalities.) Biologists conducting the current USGS wolf research have collaborated with researchers in Yellowstone, Alaska, and northern Canada, and have advised on similar projects in Italy, Spain, Scandinavia, Croatia, and the former USSR.

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