U.S. Drought Monitor, March 12, 2013,
2013
NOAA/NWS/NCEP/CPC
U.S. Drought Monitor, March 12, 2013, Matthew Rosencrans
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for March 12, 2013 (3/12/13) 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: Hay, Cattle, Winter wheat.
Status Of Nutria (Myocastor Coypus) Populations In The Pacific Northwest And Development Of Associated Control And Management Strategies, With An Emphasis On Metropolitan Habitats,
2013
Portland State University
Status Of Nutria (Myocastor Coypus) Populations In The Pacific Northwest And Development Of Associated Control And Management Strategies, With An Emphasis On Metropolitan Habitats, Trevor Robert Sheffels
Dissertations and Theses
The nutria (Myocastor coypus) is a semi-aquatic rodent native to South America that was introduced to the Pacific Northwest, USA, in the 1930s. Primary damage categories from this invasive species include burrowing and herbivory, resulting in habitat degradation. Nutria have become well-established in metropolitan habitats, and anecdotal information suggests the problem has increased in recent years. However, little regional research on the species has been conducted. The scope of this research, which emphasizes metropolitan habitats, includes three primary foci in relation to nutria populations in the Pacific Northwest: modeling habitat suitability, assessing activity and movement patterns, and identifying and managing …
Recapture Heterogeneity In Cliff Swallows: Increased Exposure To Mist Nets Leads To Net Avoidance,
2013
U.S. Geological Survey, Northern Prairie Wildlife Research Center, Jamestown, North Dakota
Recapture Heterogeneity In Cliff Swallows: Increased Exposure To Mist Nets Leads To Net Avoidance, Erin A. Roche, Charles R. Brown, Mary Bomberger Brown, Kristen M. Lear
School of Natural Resources: Faculty Publications
Ecologists often use mark-recapture to estimate demographic variables such as abundance, growth rate, or survival for samples of wild animal populations. A common assumption underlying mark-recapture is that all animals have an equal probability of detection, and failure to meet or correct for this assumption–as when certain members of the population are either easier or more difficult to capture than other animals–can lead to biased and inaccurate demographic estimates. We built within-year and among-years Cormack-Jolly-Seber recaptures-only models to identify causes of capture heterogeneity for a population of colonially nesting cliff swallows (Petrochelidon pyrrhonota) caught using mist-netting as a …
U.S. Drought Monitor, March 5, 2013,
2013
NOAA/NWS/NCEP/CPC
U.S. Drought Monitor, March 5, 2013, Matthew Rosencrans
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for March 5, 2013 (3/5/13) 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: Hay, Cattle, Winter wheat.
Where Has All The Road Kill Gone?,
2013
Department of Biological Sciences, University of Tulsa
Where Has All The Road Kill Gone?, Charles R. Brown, Mary Bomberger Brown
School of Natural Resources: Faculty Publications
An estimated 80 million birds are killed by colliding with vehicles on U.S. roads each year [1], and millions more die annually in Europe [2] and elsewhere. Losses to vehicles are a serious problem for which various changes in roadway design and maintenance have been proposed [3]. Yet, given the magnitude of the mortality reported for some species [4], we might expect natural selection to favor individuals that either learn to avoid cars or that have other traits making them less likely to collide with vehicles. If so, the frequency of road kill should decline over time. No information is …
Scotts Bluff National Monument 2012 Resource Brief,
2013
United States National Park Service, Northern Great Plains Network
Scotts Bluff National Monument 2012 Resource Brief, Isabel W. Ashton, Michael Prowatzke, Kara Paintner
United States National Park Service: Publications
Includes brief information on plant community monitoring, air quality monitoring, and weather and climate monitoring at Scotts Bluff National Monument in Nebraska, USA in 2012.
Agate Fossil Beds National Monument 2012 Resource Brief,
2013
United States National Park Service, Northern Great Plains Network
Agate Fossil Beds National Monument 2012 Resource Brief, Marcia Wilson, Kara Paintner, Isabel Ashton, Michael Prowatzke
United States National Park Service: Publications
Includes brief information on plant community monitoring, aquatic invertebrate monitoring, weather and climate monitoring at Agate Fossil Beds National Monument in Nebraska, USA from 2012.
U.S. Drought Monitor, February 26, 2013,
2013
National Drought Mitigation Center
U.S. Drought Monitor, February 26, 2013, Brian Fuchs
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for February 26, 2013 (2/26/13) 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: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, February 19, 2013,
2013
National Drought Mitigation Center
U.S. Drought Monitor, February 19, 2013, Brian Fuchs
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for February 19, 2013 (2/19/13) 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: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, February 12, 2013,
2013
NOAA National Climatic Data Center
U.S. Drought Monitor, February 12, 2013, Michael J. Brewer, Liz Love-Brotak
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for February 12, 2013 (2/12/13) 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: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, February 5, 2013,
2013
NOAA National Climatic Data Center
U.S. Drought Monitor, February 5, 2013, Michael J. Brewer, Liz Love-Brotak
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for February 5, 2013 (2/5/13) 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: Hay, Cattle, Winter wheat.
Behavioural Salinity Preferences Of Juvenile Green Sturgeon Acipenser Medirostris Acclimated To Fresh Water And
Full-Strength Salt Water,
2013
University of California, Davis
Behavioural Salinity Preferences Of Juvenile Green Sturgeon Acipenser Medirostris Acclimated To Fresh Water And Full-Strength Salt Water, J. B. Poletto, D. E. Cocherell, A. P. Klimley, J. J. Cech Jr., N. A. Fangue
School of Natural Resources: Faculty Publications
To quantify the salinity preference of juvenile green sturgeon Acipenser medirostris, two groups of A. medirostris [140 days post hatch (dph); total length (LT) 38.0–52.5 cm] were acclimated to either near fresh water (mean ± S.E. salinity = 3.2 ± 0.6) or full-strength salt water (34.1 ± 1.2) over 8 weeks. Following acclimation, the two groups were divided into experimental and control groups, where experimental A. medirostris from both freshwater and saltwater acclimations were individually introduced (200–220 dph) into a rectangular salinity-preference flume (maximum salinity gradient: 5–33). Control A. medirostris were presented with only their acclimation …
Ten Reasons To Take Peak Oil Seriously,
2013
University of Dayton
Ten Reasons To Take Peak Oil Seriously, Robert Brecha
Physics Faculty Publications
Forty years ago, the results of modeling, as presented in The Limits to Growth, reinvigorated a discussion about exponentially growing consumption of natural resources, ranging from metals to fossil fuels to atmospheric capacity, and how such consumption could not continue far into the future. Fifteen years earlier, M. King Hubbert had made the projection that petroleum production in the continental United States would likely reach a maximum around 1970, followed by a world production maximum a few decades later. The debate about “peak oil," as it has come to be called, is accompanied by some of the same vociferous …
U.S. Drought Monitor, January 29, 2013,
2013
National Drought Mitigation Center/University of Nebraska-Lincoln
U.S. Drought Monitor, January 29, 2013, Mark D. Svoboda
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 29, 2013 (1/29/13) 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: Hay, Cattle, Winter wheat.
Effects Of Molecular Structure Of The Oxidation Products Of Reactive Atmospheric Hydrocarbons On The Formation Of Secondary Organic Particulate Matter, Including The Effects Of Water,
2013
Portland State University
Effects Of Molecular Structure Of The Oxidation Products Of Reactive Atmospheric Hydrocarbons On The Formation Of Secondary Organic Particulate Matter, Including The Effects Of Water, Negar Niakan
Dissertations and Theses
Organic aerosols have significant effects on human health, air quality and climate. Secondary organic aerosols (SOA) are produced by the oxidation of primary-volatile organic compounds (VOC). For example, α-pinene reacts with oxidants such as hydroxyl radical (OH), ozone (O3), and nitrate radical (NO3), accounting for a significant portion of total organic aerosol in the atmosphere. Experimental studies have shown that the oxidation process between α-pinene and ozone has the most significant impact in the formation of SOA (Hoffmann et al., 1997). Most of the models used to predict SOA formation, however, are limited in that they …
U.S. Drought Monitor, January 22, 2013,
2013
National Drought Mitigation Center/University of Nebraska-Lincoln
U.S. Drought Monitor, January 22, 2013, Mark D. Svoboda
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 22, 2013 (1/22/13) 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: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, January 15, 2013,
2013
Western Regional Climate Center
U.S. Drought Monitor, January 15, 2013, David Simeral
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 15, 2013 (1/15/13) 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: Hay, Cattle, Winter wheat.
U.S. Drought Monitor, January 8, 2013,
2013
Western Regional Climate Center
U.S. Drought Monitor, January 8, 2013, David Simeral
United States Agricultural Commodities in Drought Archive
Drought map of U.S. for January 8, 2013 (1/8/13) 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: Hay, Cattle, Winter wheat.
Long-Term Agro-Ecosystem Research (Ltar) Network To Establish The Platte River – High Plains Aquifer Ltar,
2013
Soil and Water Conservation Research Unit, USDA-ARS
Long-Term Agro-Ecosystem Research (Ltar) Network To Establish The Platte River – High Plains Aquifer Ltar, Brian J. Wienhold, Tala Awada
School of Natural Resources: Faculty Publications
The University of Nebraska-Lincoln (UNL), the USDA-ARS Agro-ecosystem Management Research Unit (AMRU) in Lincoln, and Environmental Management Research Unit (EMRU) in Clay Center propose to establish a Long-term Agro-ecosystem Research (LTAR) Network site with a focus on the northern portion of the High Plains Aquifer. Over 95 percent of the water withdrawn from the aquifer is for agricultural use, and – unlike the portion of the aquifer underlying southern Kansas, Oklahoma, and Texas where significant drawdown has occurred – ground water levels have remained relatively stable since 1960. However, this stability might be in jeopardy with projected climate variability and …
The Importance Of Spring And Autumn Atmospheric Conditions For The Evaporation Regime Of Lake Superior,
2013
Environment Canada, Saskatoon, Saskatchewan
The Importance Of Spring And Autumn Atmospheric Conditions For The Evaporation Regime Of Lake Superior, Christopher Spence, P.D. Blanken, John D. Lenters, N. Hedstrom
School of Natural Resources: Faculty Publications
Feedbacks between ice extent and evaporation have long been suspected to be important for Lake Superior evaporation because it is during autumn and winter when latent heat fluxes are highest. Recent direct measurements of evaporation made at the Stannard Rock Lighthouse have provided new information on the physical controls on Lake Superior evaporation, in particular that evaporation can react within hours to days to a change in synoptic conditions. However, the large heat capacity of the lake creates a strong seasonal cycle of energy storage and release. There is a complex interaction among heat storage, evaporation, and ice cover that …
