Other Environmental Sciences Commons^™

U.S. Drought Monitor, October 15, 2013, Richard Tinker

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for October 15, 2013 (10/15/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, October 8, 2013, Richard Tinker

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for October 8, 2013 (10/8/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, October 1, 2013, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for October 1, 2013 (10/1/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Plant Community Composition And Structure Monitoring In Scotts Bluff National Monument, 2013 Annual Report, Isabel Ashton, Michael Prowatzke

United States National Park Service: Publications

Introduction

During the last century, much of the prairie within the Northern Great Plains has been plowed for cropland, planted with non-natives to maximize livestock production, or otherwise developed, making it one of the most threatened ecosystems in the United States. Within Nebraska, greater than 77% of the area of native mixed grass prairie has been lost since European settlement (Samson and Knopf 1994). The National Park Service (NPS) plays an important role in preserving and restoring some of the last pieces of intact prairies within its boundaries. The stewardship goal of the NPS is to “preserve ecological integrity and …

U.S. Drought Monitor, September 24, 2013, Brad Rippey

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for September 24, 2013 (9/24/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, September 17, 2013, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for September 17, 2013 (9/17/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, September 10, 2013, Anthony Artusa

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for September 10, 2013 (9/10/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Transformations In Matter And Energy: Student Learning And Inquiry To Inform Teaching, Jenny Dauer

Discipline-Based Education Research Group Speaker Series

Learning progressions are descriptions of increasing levels of sophistication of student reasoning about a topic based on empirical evidence. Our learning progression framework about student explanations of carbon-transforming processes (e.g. photosynthesis, cellular respiration) describes how student’s interconnected and mutually supporting ideas and practices are deeply embedded in discourse at all levels of achievement. My research is in two areas: 1) applying the learning progression framework for student explanations of carbon-transforming processes to describe the most productive pathways for student learning, 2) extending the research to student reasoning during inquiry activities about carbon-transforming processes. One finding is that students who consistently …

U.S. Drought Monitor, September 3, 2013, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for September 3, 2013 (9/3/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, August 27, 2013, Anthony Artusa

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 27, 2013 (8/27/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, August 20, 2013, Michael J. Brewer

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 20, 2013 (8/20/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, August 13, 2013, Michael J. Brewer

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 13, 2013 (8/13/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

The Role Of Wood Microsites At Timberline-Alpine Meadow Borders For Conifer Regeneration, Adelaide Chapman Johnson

Dissertations and Theses

This research aimed to determine whether wood microsites ("nurse logs"), which are regeneration sites in Pacific Northwest (PNW) subalpine forests, supported regeneration at timberline-alpine meadow borders. Upward advance of forests and conifer invasion into alpine meadows, which may be occurring in conjunction with climate warming, have gained worldwide attention. Successful alpine meadow seedling regeneration depends on suitable substrate availability, or microsites, for seedling establishment. To better understand factors associated with wood microsite occurrence, mechanisms of wood input were determined and four specific hypotheses were posed to assess: (1) seedling density and seedling survival; (2) growing season length, summer mean growing …

U.S. Drought Monitor, August 6, 2013, Brian Fuchs

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for August 6, 2013 (8/6/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Zooplankton Trophic Ecology In The San Francisco Estuary During Summer As Determined By Stable Isotope Analysis, Kyla Bradylong, Steven Westbrook, Julien Moderan, Wim Kimmerer

STAR Program Research Presentations

Declines in the abundance of several pelagic fish species in the upper San Francisco Estuary have prompted investigation into food web interactions within the estuary and delta (the lower Sacramento and San Joaquin Rivers). This area is characterized by low primary production and pelagic food webs much longer and reticulated than previously thought, implying low efficiency in the energy transfers from primary producers to planktivorous fish. We determined the carbon and nitrogen stable isotope (SI) composition of zooplankton samples collected monthly between June 2012 and February 2013 at eight stations along the salinity gradient. As consumers SI composition reflects that …

U.S. Drought Monitor, July 30, 2013, Brian Fuchs

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for July 30, 2013 (7/30/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, July 23, 2013, Richard R. Heim Jr.

United States Agricultural Commodities in Drought Archive

Drought map of the United States for July 23, 2013 (7/23/13) plus: United States crop areas experiencing drought (map), an approximate percentage of crop located in drought by state (bar graph), and the percentage of crop area located in drought during the past 52 weeks (line graph) for corn, soybeans, hay, cattle, and winter wheat.

U.S. Drought Monitor, July 16, 2013, Richard R. Heim Jr.

United States Agricultural Commodities in Drought Archive

Drought map of the United States for July 16, 2013 (7/16/13) plus: United States crop areas experiencing drought (map), an approximate percentage of crop located in drought by state (bar graph), and the percentage of crop area located in drought during the past 52 weeks (line graph) for corn, soybeans, hay, cattle, and winter wheat.

U.S. Drought Monitor, July 9, 2013, Matthew Rosencrans

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for July 9, 2013 (7/9/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, July 2, 2013, Matthew Rosencrans

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for July 2, 2013 (7/2/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Seasonal Fires, Bison Grazing, And The Tallgrass Prairie Forb Arnoglossum Plantagineum Raf., Stephen L. Winter, Karen R. Hickman, Carla L. Goad, Samuel D. Fuhlendorf, Mark S. Gregory

School of Natural Resources: Faculty Publications

Fire and grazing can interact to affect the structure and composition of vegetation communities in a manner that may differ from the effects of fire or grazing that occurs in isolation of the other. In order to better understand the effects of a fire-grazing interaction at the level of an individual plant species, we studied the response of a perennial tallgrass prairie forb, Arnoglossum plantagineum Raf., to the interaction of spring and summer fires with grazing by bison (Bison bison L.). During one field season (2006), we collected data in areas that had been treated with summer fires while …

U.S. Drought Monitor, June 25, 2013, Mark D. Svoboda

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 25, 2013 (6/25/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, June 18, 2013, Mark D. Svoboda

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 18, 2013 (6/18/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, June 11, 2013, David Simeral

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 11, 2013 (6/11/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, June 4, 2013, David Simeral

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for June 4, 2013 (6/4/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

Patch Burning: Integrating Fire And Grazing To Promote Heterogeneity, John R. Weir, Samuel D. Fuhlendorf, David M. Engle, Terrence G. Bidwell, D. Chad Cummings, R. Dwayne Elmore, Ryan F. Limb, Brady W. Allred, J. Derek Scasta, Stephen L. Winter

United States Fish and Wildlife Service: Publications

Heterogeneity refers to the differences in habitats across the landscape, and it is required for diverse plant and wildlife communities. Some heterogeneity is inherent, caused by differences in soils, while most heterogeneity is disturbance driven. Climate, fire, and grazing are the main three disturbance factors that have historically shaped the landscape. All three are still very important to the continued diversity and health of the plants and animals associated with our prairies, shrublands, and forestlands across the Great Plains. While we cannot control the climate, we can manage grazing by stocking rate, season of use, and kind and type of …

U.S. Drought Monitor, May 28, 2013, Brad Rippey

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for May 28, 2013 (5/28/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, May 21, 2013, Brad Rippey

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for May 21, 2013 (5/21/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, May 14, 2013, Rich Tinker

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for May 14, 2013 (5/14/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.

U.S. Drought Monitor, May 7, 2013, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for May 7, 2013 (5/7/13) plus: U.S. crop areas experiencing drought (map), Approximate percentage of crop located in drought, by state (bar graph), Percent of crop area located in drought, past 52 weeks (line graph) for: Corn, Soybeans, Hay, Cattle, Winter wheat.