American White Pelicans and Recreational Boaters on Lakes of the North American Great Plains: Habitat Use Overlap

The North American Great Lakes / St . Lawrence

Incidental oligotrophication of North American Great Lakes.

Phytoplankton production is an important factor in determining both ecosystem stability and the provision of ecosystem goods and services. The expansive and economically important North American Great Lakes are subjected to multiple stressors and understanding their responses to those stresses is important for understanding system-wide ecological controls. Here we show gradual increases in spri...

North American Indians: Indians of the Plains

THE PLAINS The Plains region, an area delineated by the Rocky Mountains on the west; the Canadian provinces of Alberta, Saskatchewan, and Manitoba on the north; the Mississippi River on the east; and the Gulf of Mexico on the south, is home to philosophies, traditions, and ways of life that are some of the most varied and complex in the United States. The Great Plains measure 1,125,000 square m...

Avoidance of unconventional oil wells and roads exacerbates habitat loss for grassland birds in the North American great plains

a r t i c l e i n f o Keywords: Avoidance Bakken Grassland birds Oil development Piecewise regression Sprague's pipit Oil development in the Bakken shale region has increased rapidly as a result of new technologies and strong demand for fossil fuel. This region also supports a particularly high density and diversity of grassland bird species, which are declining across North America. We examine...

Forum Effects of Grazing Pressure on Efficiency of Grazing on North American Great Plains Rangelands

Comparisons of stocking rates across sites can be facilitated by calculating grazing pressure. We used peak standing crop and stocking rates from six studies in the North American Great Plains (Cheyenne, Wyoming; Cottonwood, South Dakota; Hays, Kansas; Nunn, Colorado; Streeter, North Dakota; and Woodward, Oklahoma) to calculate a grazing pressure index and develop relationships for harvest effi...