Natural Resources and Conservation Commons^™

Distribution Of Burrowing Owls In East- Central South Dakota, Jiill A. Shaffer, Jason P. Thiele

The Prairie Naturalist

Western burrowing owl (Athene cunicularia hypugaea) populations have declined across much of western North America, particularly at the northern and eastern edges of the species’ breeding range (Martell et al. 2001, Murphy et al. 2001, Shyry et al. 2001, Skeel et al. 2001, Klute et al. 2003). In South Dakota, the burrowing owl is a summer resident that historically was relatively common throughout the state, but its range has decreased in recent decades, especially in the eastern half of the state (Whitney et al. 1978, South Dakota Ornithologists’ Union [SDOU] 1991, Peterson 1995). Tallman et al. (2002) described the species …

Notes: Nesting Patterns Of Red-Tailed Hawks And Great-Horned Owls In South-Cen- Tral Kansas, William Langley

The Prairie Naturalist

Red-tailed hawks (Buteo jamaicensis) and great-horned owls (Bubo virginianus) can influence the nesting behavior of each other through direct competition for nesting sites. For instance, owls begin nesting before hawks and, thus, can use nests from the previous year and prevent hawks from occupying those sites (Orians and Kuhl- man 1956, Gilmer et al. 1983, Minor et al. 1993). However, both species sometimes kill the nestlings of the other (Craig- head and Craighead 1956, Bosakowski et al. 1989).

The objective of my study was to investigate nesting patterns of these two raptors at the edge of the tallgrass prairie over …

Research Notes Vs. Research Articles, Christopher N. Jacques

The Prairie Naturalist

Greetings GPNSS members! I hope this email finds you well, winding down another academic year, and looking forward to the summer field season. Warm temperatures, peak foliage, and heightened anticipation of the start of another field season are upon us following a long winter season and unusually wet spring for many of us across the Great Plains. Here in westcentral Illinois, wild turkeys are gobbling, neotropical migrants are singing and establishing breeding territories, and white-tailed deer are within days of giving birth to the next generation of fawns. Granted, there are many outdoor activities to participate in, though oppressive heat …

Source And Magnitude Of Error In An Inexpensive Image-Based Water Level Measurement System, Troy E. Gilmore, François Birgand, Kenneth W. Chapman

School of Natural Resources: Faculty Publications

Recent technological advances have opened the possibility to use webcams and images as part of the environmental monitoring arsenal. The potential sources and magnitude of uncertainties inherent to an image-based water level measurement system are evaluated in an experimental design in the laboratory. Sources of error investigated include image resolution, lighting effects, perspective, lens distortion and water meniscus. Image resolution and meniscus were found to weigh the most in the overall uncertainty of this system. Image distortion, although largely taken into account by the software developed, may also significantly add to uncertainty. Results suggest that ‘‘flat’’ images with little distortion …

The Role Of The Ocean Industry In The Chinese National Economy: An Input-Output Analysis, Rui Zhao

Working Papers

The OEAS (Ocean Economy Accounting System) has been established in China for 6 years. However, the economic impact of the ocean economy in China’s national economy has not yet been understood clearly at the national or regional levels. The direct impact of ocean industries in China at national and regional levels has been compiled for the period of 2001-2011, but it is still unclear what the overall economic impacts of ocean industries are in the national economy, and how the ocean industries interact with other industries in the national economy. China is similar to other ocean countries in that, - …

Jefferson Currents: Summer/Fall 2007

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, steam power and chilled water on campus, 6 degrees of efficiency challenge, and other conservation news. 2 pages.

Jefferson Currents: Winter 2005/6

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, Jefferson signs agreements for a new central chilled water plant and steam purchase pricing, and other conservation news. 2 pages.

Jefferson Currents: Winter 2005

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, energy myths debunked, savings at work, and other conservation news. 2 pages.

Jefferson Currents: Winter 2003

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, campus heating costs soar, energy upgrades at TJUH buildings, and other conservation news. 2 pages.

Jefferson Currents: Summer 2005

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, electricity bills rising, information on buying air conditioners, and other conservation news. 2 pages.

Jefferson Currents: Summer 2004

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, energy costs slashed, energy myths debunked, and other conservation news. 2 pages.

Jefferson Currents: Summer 2003

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, Jefferson receives two energy awards, Jefferson's water meter costs cut, and other conservation news. 2 pages.

Jefferson Currents: Spring 2013

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, insulation for saving on heating and cooling cost, Earth Day news, and other conservation news. 2 pages.

Jefferson Currents: Spring 2011

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, healthy Jeff water Wednesday, investment in energy efficiency yields big savings on campus, and other conservation news. 2 pages.

Jefferson Currents: Spring 2006

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, electric rates going up, energy myths debunked, and other conservation news. 2 pages.

Jefferson Currents: Spring 2005

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, energy use on campus, energy myths debunked, and other conservation news. 2 pages.

Jefferson Currents: Spring 2004

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, free hot water, energy myths debunked, and other conservation news. 2 pages.

Jefferson Currents: Fall 2012

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, on the home front, EnergySense from PGW, and other conservation news. 2 pages.

Jefferson Currents: Fall 2011

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, six ways to cut winter energy use, load shedding initiative saves money, work completed on large energy projects, and more conservation news. 2 pages.

Jefferson Currents: Fall 2009

Jefferson Currents: The Energy Conservation Newsletter

Dr. Watts' Brilliant Savings, saving money and healing the environment, trash to cash, and other conservation news. 2 pages.