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2014

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Articles 91 - 120 of 181

Full-Text Articles in Other Environmental Sciences

U.S. Drought Monitor, March 4, 2014, Brad Rippey Mar 2014

U.S. Drought Monitor, March 4, 2014, Brad Rippey

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for March 4, 2014 (3/4/14) 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.

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Nongeocentric Axial Dipole Field Behavior During The Mono Lake Excursion, Robert M. Negrini, Daniel T. Mccuan, Robert A. Horton, James D. Lopez, William S. Cassata, James E.T. Channell, Kenneth L. Verosub, Jeffrey R. Knott, Robert S. Coe, Joseph C. Liddicoat, Steven P. Lund, Larry V. Benson, Andrei M. Sarna-Wojcicki Mar 2014

Nongeocentric Axial Dipole Field Behavior During The Mono Lake Excursion, Robert M. Negrini, Daniel T. Mccuan, Robert A. Horton, James D. Lopez, William S. Cassata, James E.T. Channell, Kenneth L. Verosub, Jeffrey R. Knott, Robert S. Coe, Joseph C. Liddicoat, Steven P. Lund, Larry V. Benson, Andrei M. Sarna-Wojcicki

United States Geological Survey: Staff Publications

A new record of the Mono Lake excursion (MLE) is reported from the Summer Lake basin of Oregon, USA. Sediment magnetic properties indicate magnetite as the magnetization carrier and imply suitability of the sediments as accurate recorders of the magnetic field including relative paleointensity (RPI) variations. The magnitudes and phases of the declination, inclination, and RPI components of the new record correlate well with other coeval but lower resolution records from western North America including records from the Wilson Creek Formation exposed around Mono Lake. The virtual geomagnetic pole (VGP) path of the new record is similar to that from …

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U.S. Drought Monitor, February 25, 2014, Brad Rippey Feb 2014

U.S. Drought Monitor, February 25, 2014, Brad Rippey

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for February 25, 2014 (2/25/14) 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.

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Survival Of Hatchery Gulf Sturgeon (Acipenser Oxyrinchus Desotoi Mitchill, 1815) In The Suwannee River, Florida: A 19-Year Evaluation, K. J. Sulak, M. T. Randall, J. P. Clugston Feb 2014

Survival Of Hatchery Gulf Sturgeon (Acipenser Oxyrinchus Desotoi Mitchill, 1815) In The Suwannee River, Florida: A 19-Year Evaluation, K. J. Sulak, M. T. Randall, J. P. Clugston

United States Geological Survey: Staff Publications

An experimental release of 1192 hatchery-reared, individually PIT tagged, 220 days old (296–337 mm TL) Gulf sturgeon, Acipenser oxyrinchus desotoi, was undertaken in 1992 in the Suwannee River, Florida. The original objectives of the 1992 release experiment were to: (1) evaluate survival rate of cultured Gulf sturgeon in the wild vs survival rate of their wild 1992 cohort counterparts, (2) determine the differential effect of release site within the river upon long-term survival, and (3) evaluate comparative growth rates of recaptured hatchery vs captured wild 1992 cohort Gulf sturgeon. The present investigation addressed those original objectives, plus an additional fourth …

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Stochastic Models To Generate Geospatial-, Temporal-, And Cross-Correlated Daily Maximum And Minimum Temperatures, Guillermo A. Baigorria Feb 2014

Stochastic Models To Generate Geospatial-, Temporal-, And Cross-Correlated Daily Maximum And Minimum Temperatures, Guillermo A. Baigorria

School of Natural Resources: Faculty Publications

Weather generators are tools used to downscale monthly to seasonal climate forecasts, from numerical climate models to daily values for use as inputs for crop and other environmental models. One main limitation of most of weather generators is that they do not incorporate neither the spatial/temporal correlations between/within sites nor the cross-correlations between variables, characteristics specially important when aggregating, for example, simulated crop yields, freeze events, or heat waves in a watershed or region.Three models were developed to generate realization of daily maximum and minimum temperatures for multiple sites. The first model incorporates only spatial correlation, whereas temporal correlation using …

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U.S. Drought Monitor, February 18, 2014, David Miskus Feb 2014

U.S. Drought Monitor, February 18, 2014, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for February 18, 2014 (2/18/14) 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.

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U.S. Drought Monitor, February 11, 2014, David Miskus Feb 2014

U.S. Drought Monitor, February 11, 2014, David Miskus

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for February 11, 2014 (2/11/14) 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.

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U.S. Drought Monitor, February 4, 2014, Anthony Artusa Feb 2014

U.S. Drought Monitor, February 4, 2014, Anthony Artusa

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for February 4, 2014 (2/4/14) 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.

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U.S. Drought Monitor, January 28, 2014, Anthony Artusa Jan 2014

U.S. Drought Monitor, January 28, 2014, Anthony Artusa

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for January 28, 2014 (1/28/14) 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.

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Estimating Temperature Fields From Modis Land Surface Temperature And Air Temperature Observations In A Sub-Arctic Alpine Environment, Scott N. Williamson, David S. Hik, John A. Gamon, Jeffrey L. Kavanaugh, Gwenn E. Flowers Jan 2014

Estimating Temperature Fields From Modis Land Surface Temperature And Air Temperature Observations In A Sub-Arctic Alpine Environment, Scott N. Williamson, David S. Hik, John A. Gamon, Jeffrey L. Kavanaugh, Gwenn E. Flowers

School of Natural Resources: Faculty Publications

Spatially continuous satellite infrared temperature measurements are essential for understanding the consequences and drivers of change, at local and regional scales, especially in northern and alpine environments dominated by a complex cryosphere where in situ observations are scarce. We describe two methods for producing daily temperature fields using MODIS ―clear-sky‖ day-time Land Surface Temperatures (LST). The Interpolated Curve Mean Daily Surface Temperature (ICM) method, interpolates single daytime Terra LST values to daily means using the coincident diurnal air temperature curves. The second method calculates daily mean LST from daily maximum and minimum LST (MMM) values from MODIS Aqua and Terra. …

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U.S. Drought Monitor, January 21, 2014, Richard Tinker Jan 2014

U.S. Drought Monitor, January 21, 2014, Richard Tinker

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for January 21, 2014 (1/21/14) 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.

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U.S. Drought Monitor, January 14, 2014, Eric Luebehusen Jan 2014

U.S. Drought Monitor, January 14, 2014, Eric Luebehusen

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for January 14, 2014 (1/14/14) 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: Cattle, Winter wheat.

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U.S. Drought Monitor, January 7, 2014, Mark D. Svoboda Jan 2014

U.S. Drought Monitor, January 7, 2014, Mark D. Svoboda

United States Agricultural Commodities in Drought Archive

Drought map of U.S. for January 7, 2014 (1/7/14) 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.

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Summer Soil Moisture Spatiotemporal Variability In Southeastern Arizona, Susan Stillman, Jason Ninneman, Xubin Zeng, Trenton E. Franz, Russell L. Scott, William J. Shuttleworth, Ken Cummins Jan 2014

Summer Soil Moisture Spatiotemporal Variability In Southeastern Arizona, Susan Stillman, Jason Ninneman, Xubin Zeng, Trenton E. Franz, Russell L. Scott, William J. Shuttleworth, Ken Cummins

School of Natural Resources: Faculty Publications

Soil moisture is important for many applications, but its measurements are lacking globally and even regionally. The Walnut Gulch Experimental Watershed (WGEW) in southeastern Arizona has measured near surface 5-cm soil moisture with 19 in situ probes since 2002 within its 150km2 area. Using various criteria to identify erroneous data, it is found that in any given period from 1 July to 30 September from 2002 to 2011, 13– 17 of these probes were producing reasonable data, and this is sufficient to estimate area-averaged seasonal soil moisture. A soil water balance model is then developed using rainfall as its only …

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Local Awareness Of And Attitudes Toward Pygmy Hippopotamus Conservation In The Moa River Island Complex, Sierra Leone., April L. Conway, Sonia M. Hernandez, John P. Carroll, Gary T. Green, Lincoln Larson Jan 2014

Local Awareness Of And Attitudes Toward Pygmy Hippopotamus Conservation In The Moa River Island Complex, Sierra Leone., April L. Conway, Sonia M. Hernandez, John P. Carroll, Gary T. Green, Lincoln Larson

School of Natural Resources: Faculty Publications

Abstract The pygmy hippopotamus Choeropsis liberiensis is an Endangered species found only in the Upper Guinea rainforests of West Africa. Using a two-phase approach, with initial semi-structured interviews followed by more extensive questionnaires, we examined local residents’ awareness of and attitudes towards the pygmy hippopotamus along the Moa River near Tiwai Island Wildlife Sanctuary in Sierra Leone. The interviews and questionnaires addressed human–hippopotamus interactions, local knowledge and awareness of pygmy hippopotamus ecology and behaviour, and public attitudes towards hippopotamus conservation. Overall, 22% of questionnaire respondents acknowledged benefits related to hippopotamus conservation; factors affecting the perception of benefits included age, livestock …

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Using Art To Assess Environmental Education Outcomes, Ami G. Flowers, John P. Carroll, Gary T. Green, Lincoln R. Larson Jan 2014

Using Art To Assess Environmental Education Outcomes, Ami G. Flowers, John P. Carroll, Gary T. Green, Lincoln R. Larson

School of Natural Resources: Faculty Publications

Construction of developmentally appropriate tools for assessing the environmental attitudes and awareness of young learners has proven to be challenging. Art-based assessments that encourage creativity and accommodate different modes of expression may be a particularly useful complement to conventional tools (e.g. surveys), but their efficacy and feasibility across diverse contexts has not been adequately explored. To examine the potential utility of integrating art into evaluations of environmental education outcomes, we adapted an existing drawing prompt and corresponding grading rubric to assess the environmental attitudes and awareness of children (ages 6–12) at summer camps in Athens, GA, USA (n = …

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Evidence For Bluegill Spawning Plasticity Obtained By Disentangling Complex Factors Related To Recruitment, Mark A. Kaemingk, Kristopher J. Stahr, Jeffrey C. Jolley, Richard S. Holland, David W. Willis Jan 2014

Evidence For Bluegill Spawning Plasticity Obtained By Disentangling Complex Factors Related To Recruitment, Mark A. Kaemingk, Kristopher J. Stahr, Jeffrey C. Jolley, Richard S. Holland, David W. Willis

School of Natural Resources: Faculty Publications

Fishes can exhibit many forms of plasticity to maximize fitness. However, limited information exists on the ability of freshwater fish to adjust spawning behavior and characteristics (e.g., timing, duration, magnitude of spawning events) to minimize mortality of recruits and ultimately maximize fitness.Wewanted to test the life history hypothesis for bluegill (Lepomis macrochirus) (i.e., opportunistic strategy) utilizing existing literature and results from our study to further evaluate the potential for spawning plasticity in this species. Our objective was to identify bluegill recruitment bottlenecks (i.e., periods of high mortality) and factors associated with these events in a single lake during …

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Temperature, Hatch Date, And Prey Availability Influence Age-0 Yellow Perch Growth And Survival, Mark A. Kaemingk, Brian D. S. Graeb, David W. Willis Jan 2014

Temperature, Hatch Date, And Prey Availability Influence Age-0 Yellow Perch Growth And Survival, Mark A. Kaemingk, Brian D. S. Graeb, David W. Willis

School of Natural Resources: Faculty Publications

Throughout their range, Yellow Perch Perca flavescens are an important ecological and economic component of many fisheries, but they often exhibit highly variable recruitment. Much research effort has been devoted to better understanding the mechanisms responsible for these erratic recruitment patterns, yet few studies have examined this process at the detail necessary to reveal complex interactions that may exist across multiple early life stages. Our current understanding of the early life recruitment patterns of Yellow Perch suggests a strong abiotic component. Using existing information, we developed three working hypotheses to examine Yellow Perch recruitment at two larval stages (5–14 and …

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Does Human Predation Risk Affect Harvest Susceptibility Of White-Tailed Deer During Hunting Season?, Andrew R. Little, Stephen Demarais, Kenneth L. Gee, Stephen L. Webb, Samuel K. Riffell, Joshua A. Gaskamp, Jerrod L. Belant Jan 2014

Does Human Predation Risk Affect Harvest Susceptibility Of White-Tailed Deer During Hunting Season?, Andrew R. Little, Stephen Demarais, Kenneth L. Gee, Stephen L. Webb, Samuel K. Riffell, Joshua A. Gaskamp, Jerrod L. Belant

School of Natural Resources: Faculty Publications

Large carnivores are considered a primary source of mortality for many ungulate populations, but harvest by hunters is the primary means of population management. However, research is needed to evaluate how human predation risk influences observability (a surrogate to harvest susceptibility) of ungulates. We determined how hunting intensity and duration influence observation rates of white-tailed deer (Odocoileus virginianus) and how deer behavior (i.e., movement rate and resource selection) affects observation rates. We sampled 37 adult (≥2 yr) male deer at 2 levels of risk (i.e., low-risk = 1 hunter/101 ha; and high-risk = 1 hunter/30 ha) during 3 …

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Unscreened Water-Diversion Pipes Pose An Entrainment Risk To The Threatened Green Sturgeon, Acipenser Medirostris, Timothy D. Mussen, Dennis Chocherell, Jamilynn B. Poletto, Jon S. Reardon, Zachary Hockett, Ali Ercan, Hossein Bandeh, M. Levent Kavvas, Joseph J. Cech Jr., Nann A. Fangue Jan 2014

Unscreened Water-Diversion Pipes Pose An Entrainment Risk To The Threatened Green Sturgeon, Acipenser Medirostris, Timothy D. Mussen, Dennis Chocherell, Jamilynn B. Poletto, Jon S. Reardon, Zachary Hockett, Ali Ercan, Hossein Bandeh, M. Levent Kavvas, Joseph J. Cech Jr., Nann A. Fangue

School of Natural Resources: Faculty Publications

Over 3,300 unscreened agricultural water diversion pipes line the levees and riverbanks of the Sacramento River (California) watershed, where the threatened Southern Distinct Population Segment of green sturgeon, Acipenser medirostris, spawn. The number of sturgeon drawn into (entrained) and killed by these pipes is greatly unknown. We examined avoidance behaviors and entrainment susceptibility of juvenile green sturgeon (3560.6 cm mean fork length) to entrainment in a large (.500-kl) outdoor flume with a 0.46-m-diameter water-diversion pipe. Fish entrainment was generally high (range: 26–61%), likely due to a lack of avoidance behavior prior to entering inescapable inflow conditions. We estimated that …

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Larval Green And White Sturgeon Swimming Performance In Relation To Water-Diversion Flows, Christine E. Verhille, Jamilynn B. Poletto, Dennis E. Cocherell, Bethany Decourten, Sarah Baird, Joseph J. Cech Jr., Nann A. Fangue Jan 2014

Larval Green And White Sturgeon Swimming Performance In Relation To Water-Diversion Flows, Christine E. Verhille, Jamilynn B. Poletto, Dennis E. Cocherell, Bethany Decourten, Sarah Baird, Joseph J. Cech Jr., Nann A. Fangue

School of Natural Resources: Faculty Publications

Little is known of the swimming capacities of larval sturgeons, despite global population declines in many species due in part to fragmentation of their spawning and rearing habitats by man-made water-diversion structures. Larval green (Acipenser medirostris) and white sturgeon (Acipenser transmontanus) inhabit the highly altered Sacramento–San Joaquin watershed, making them logical species to examine vulnerability to entrainment by altered water flows. The risk of larval sturgeon entrainment is influenced by the ontogeny of swimming capacity and dispersal timing and their interactions with water-diversion structure operations. Therefore, the aim of this study was to describe and compare …

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Efficacy Of A Sensory Deterrent And Pipe Modifications In Decreasing Entrainment Of Juvenile Green Sturgeon (Acipenser Medirostris) At Unscreened Water Diversions, Jamilynn B. Poletto, Dennis E. Cocherell, Timothy D. Mussen, Ali Ercan, Hossein Bandeh, M. Levent Kavvas, Joseph J. Cech Jr., Nann A. Fangue Jan 2014

Efficacy Of A Sensory Deterrent And Pipe Modifications In Decreasing Entrainment Of Juvenile Green Sturgeon (Acipenser Medirostris) At Unscreened Water Diversions, Jamilynn B. Poletto, Dennis E. Cocherell, Timothy D. Mussen, Ali Ercan, Hossein Bandeh, M. Levent Kavvas, Joseph J. Cech Jr., Nann A. Fangue

School of Natural Resources: Faculty Publications

Water projects designed to extract fresh water for local urban, industrial and agricultural use throughout rivers and estuaries worldwide have contributed to the fragmentation and degradation of suitable habitat for native fishes. The number of water diversions located throughout the Sacramento–San Joaquin watershed in California’s Central Valley exceeds 3300, and the majority of these are unscreened. Many anadromous fish species are susceptible to entrainment into these diversions, potentially impacting population numbers. In the laboratory, juvenile green sturgeon (Acipenser medirostris) have been shown to have high entrainment rates into unscreened diversions compared with those of other native California fish …

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Parameterization Of The Satellite-Based Model (Metric) For The Estimation Of Instantaneous Surface Energy Balance Components Over A Drip-Irrigated Vineyard, Marcos Carrasco-Benavides, Samuel Ortega-Farias, Luis Octavio Lagos, Jan Kleissl, Luis Morales-Salinas, Ayse Kilic Jan 2014

Parameterization Of The Satellite-Based Model (Metric) For The Estimation Of Instantaneous Surface Energy Balance Components Over A Drip-Irrigated Vineyard, Marcos Carrasco-Benavides, Samuel Ortega-Farias, Luis Octavio Lagos, Jan Kleissl, Luis Morales-Salinas, Ayse Kilic

School of Natural Resources: Faculty Publications

A study was carried out to parameterize the METRIC (Mapping EvapoTranspiration at high Resolution with Internalized Calibration) model for estimating instantaneous values of albedo (shortwave albedo) (αi), net radiation (Rni) and soil heat flux (Gi), sensible (Hi) and latent heat (LEi) over a drip-irrigated Merlot vineyard (location: 35°25′ LS; 71°32′ LW; 125 m.a.s. (l). The experiment was carried out in a plot of 4.25 ha, processing 15 Landsat images, which were acquired from 2006 to 2009. An automatic weather station was placed inside the experimental plot to measure αi, …

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Biofrag – A New Database For Analyzing Biodiversity Responses To Forest Fragmentation, Marion Pfeifer, Andrew Tyre Jan 2014

Biofrag – A New Database For Analyzing Biodiversity Responses To Forest Fragmentation, Marion Pfeifer, Andrew Tyre

School of Natural Resources: Faculty Publications

Habitat fragmentation studies have produced complex results that are challenging to synthesize. Inconsistencies among studies may result from variation in the choice of landscape metrics and response variables, which is often compounded by a lack of key statistical or methodological information. Collating primary datasets on biodiversity responses to fragmentation in a consistent and flexible database permits simple data retrieval for subsequent analyses. We present a relational database that links such field data to taxonomic nomenclature, spatial and temporal plot attributes, and environmental characteristics. Field assessments include measurements of the response(s) (e.g., presence, abundance, ground cover) of one or more species …

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Spectroscopic Analysis Of Seasonal Changes In Live Fuel Moisture Content And Leaf Dry Mass, Yi Qi, Philip E. Dennison, W. Matt Jolly, Rachael C. Kropp, Simon C. Brewer Jan 2014

Spectroscopic Analysis Of Seasonal Changes In Live Fuel Moisture Content And Leaf Dry Mass, Yi Qi, Philip E. Dennison, W. Matt Jolly, Rachael C. Kropp, Simon C. Brewer

School of Natural Resources: Faculty Publications

No abstract provided.

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Transdisciplinary Research On Environmental Governance: A View From The Inside, Katherine Mattor, Michele Betsill, Ch'aska Huayhuaca, Heidi Huber-Stearns, Theresa Jedd, Faith Sternlieb, Patrick Bixler, Matthew Luizza, Antony S. Cheng Jan 2014

Transdisciplinary Research On Environmental Governance: A View From The Inside, Katherine Mattor, Michele Betsill, Ch'aska Huayhuaca, Heidi Huber-Stearns, Theresa Jedd, Faith Sternlieb, Patrick Bixler, Matthew Luizza, Antony S. Cheng

School of Natural Resources: Faculty Publications

No abstract provided.

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Carbon–Temperature–Water Change Analysis For Peanut Production Under Climate Change: A Prototype For The Agmip Coordinated Climate-Crop Modeling Project (C3mp), Alex Ruane, Sonali Mcdermid, Cynthia Rosenzweig, Guillermo Baigorria, James W. Jones, Consuelo Romero, L. Dewayne Cecil Jan 2014

Carbon–Temperature–Water Change Analysis For Peanut Production Under Climate Change: A Prototype For The Agmip Coordinated Climate-Crop Modeling Project (C3mp), Alex Ruane, Sonali Mcdermid, Cynthia Rosenzweig, Guillermo Baigorria, James W. Jones, Consuelo Romero, L. Dewayne Cecil

School of Natural Resources: Faculty Publications

Climate change is projected to push the limits of cropping systems and has the potential to disrupt the agricultural sector from local to global scales. This article introduces the Coordinated Climate-Crop Modeling Project (C3MP), an initiative of the Agricultural Model Intercomparison and Improvement Project (AgMIP) to engage a global network of crop modelers to explore the impacts of climate change via an investigation of crop responses to changes in carbon dioxide concentration ([CO2]), temperature, and water. As a demonstration of the C3MP protocols and enabled analyses, we apply the Decision Support System for Agrotechnology Transfer (DSSAT) CROPGRO-Peanut crop model for …

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Assessing Risk Of Disease Transmission: Direct Implications For An Indirect Science, Michael Lavelle, Justin Fischer, Gregory Phillips, Tyler Campbell, Kurt C. Vercauteren, Aaron Hildreth, David Hewiltt, Scott Hygnstrom Jan 2014

Assessing Risk Of Disease Transmission: Direct Implications For An Indirect Science, Michael Lavelle, Justin Fischer, Gregory Phillips, Tyler Campbell, Kurt C. Vercauteren, Aaron Hildreth, David Hewiltt, Scott Hygnstrom

School of Natural Resources: Faculty Publications

By definition, contact denotes the ;unction of at least two objects. In the context of disease transmission, contact implies interaction with potential to spread disease. Mischaracterization of contacts may res"lt in inaccurate estimates of transmission rates. To collect more-accurate contact data among white-tailed deer (Odocoileus virginianus), "'e built a deer-borne contact detection system (DCDS) consisting of a camera and a proximity logger installed on a GPS (Global Positioning System) collar. We outfitted 26 adult male deer with DCDSs to record GPS locations, proximity of equipped deer to other equipped deer, and video of deer interactions in southern Texas during arltUmn …

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A Tallgrass Prairie Forb In A Landscape Shaped By Patch Burn Grazing, Stephen L. Winter Jan 2014

A Tallgrass Prairie Forb In A Landscape Shaped By Patch Burn Grazing, Stephen L. Winter

School of Natural Resources: Faculty Publications

Our research indicated that Indian plantain is a tallgrass prairie forb that experiences a temporary period of competitive release as a result of the fire‐grazing interaction found in patch burn grazing systems. Additional research is needed to determine what other species of perennial forbs exhibit this phenomena and in what other locations. Conservationists are especially interested in whether this is the case for what are termed “conservative” species of forbs, species that aren’t typically found in locations that have a long history of heavy grazing or other type of land use that produces vegetation characterized by only the hardiest species. …

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Landsat-8: Science And Product Vision For Terrestrial Global Change Research, David P. Roy, M. A. Wulder, T. R. Loveland, C. E. Woodcock, R. G. Allen, M. C. Anderson, D. Helder, J. R. Irons, D. M. Johnson, R. Kennedy, T. A. Scambos, C. B. Schaaf, J. R. Schott, Y. Sheng, E. F. Vermote, A. S. Belward, R. Bindschadler, W. B. Cohen, F. Gao, J. D. Hipple, P. Hostert, Desert Research Institute, Reno, Nv, C. O. Justice, Ayse Kilic, V. Kovalskyy, Z. P. Lee, L. Lymburner, J. G. Masek, J. Mccorkel, Y. Shuai, R. Trezza, J. Vogelmann, R. H. Wynne, Z. Zhu Jan 2014

Landsat-8: Science And Product Vision For Terrestrial Global Change Research, David P. Roy, M. A. Wulder, T. R. Loveland, C. E. Woodcock, R. G. Allen, M. C. Anderson, D. Helder, J. R. Irons, D. M. Johnson, R. Kennedy, T. A. Scambos, C. B. Schaaf, J. R. Schott, Y. Sheng, E. F. Vermote, A. S. Belward, R. Bindschadler, W. B. Cohen, F. Gao, J. D. Hipple, P. Hostert, Desert Research Institute, Reno, Nv, C. O. Justice, Ayse Kilic, V. Kovalskyy, Z. P. Lee, L. Lymburner, J. G. Masek, J. Mccorkel, Y. Shuai, R. Trezza, J. Vogelmann, R. H. Wynne, Z. Zhu

School of Natural Resources: Faculty Publications

Landsat 8, a NASA and USGS collaboration, acquires global moderate-resolution measurements of the Earth's terrestrial and polar regions in the visible, near-infrared, short wave, and thermal infrared. Landsat 8 extends the remarkable 40 year Landsat record and has enhanced capabilities including new spectral bands in the blue and cirrus cloud-detection portion of the spectrum, two thermal bands, improved sensor signal-to-noise performance and associated improvements in radiometric resolution, and an improved duty cycle that allows collection of a significantly greater number of images per day. This paper introduces the current (2012–2017) Landsat Science Team's efforts to establish an initial understanding of …

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