U.S. Drought Monitor, February 11, 2014,
2014
NOAA/NWS/NCEP/CPC
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.
U.S. Drought Monitor, February 4, 2014,
2014
NOAA/NWS/NCEP/CPC
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.
U.S. Drought Monitor, January 28, 2014,
2014
NOAA/NWS/NCEP/CPC
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.
Estimating Temperature Fields From Modis Land Surface Temperature And Air Temperature Observations In A Sub-Arctic Alpine Environment,
2014
University of Alberta
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. …
U.S. Drought Monitor, January 21, 2014,
2014
NOAA/NWS/NCEP/CPC
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.
U.S. Drought Monitor, January 14, 2014,
2014
U.S. Department of Agriculture
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.
U.S. Drought Monitor, January 7, 2014,
2014
National Drought Mitigation Center/University of Nebraska-Lincoln
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.
Summer Soil Moisture Spatiotemporal Variability In Southeastern Arizona,
2014
The University of Arizona, Tucson
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 …
Local Awareness Of And Attitudes Toward Pygmy Hippopotamus Conservation In The Moa River Island Complex, Sierra Leone.,
2014
University of Georgia
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 …
Using Art To Assess Environmental Education Outcomes,
2014
University of Georgia
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 = …
Evidence For Bluegill Spawning Plasticity Obtained By Disentangling Complex Factors Related To Recruitment,
2014
University of Nebraska - Lincoln
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 …
Temperature, Hatch Date, And Prey Availability Influence Age-0 Yellow Perch Growth And Survival,
2014
University of Nebraska - Lincoln
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 …
Does Human Predation Risk Affect Harvest Susceptibility Of White-Tailed Deer During Hunting Season?,
2014
Mississippi State University
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 …
Unscreened Water-Diversion Pipes Pose An Entrainment
Risk To The Threatened Green Sturgeon, Acipenser
Medirostris,
2014
Sacramento Regional County Sanitation District
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 …
Larval Green And White Sturgeon Swimming
Performance In Relation To Water-Diversion Flows,
2014
University of California, Davis
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 …
Efficacy Of A Sensory Deterrent And Pipe
Modifications In Decreasing Entrainment
Of Juvenile Green Sturgeon (Acipenser Medirostris)
At Unscreened Water Diversions,
2014
University of California, Davis
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 …
Parameterization Of The Satellite-Based Model (Metric) For
The Estimation Of Instantaneous Surface Energy Balance
Components Over A Drip-Irrigated Vineyard,
2014
Universidad Catolica del Maule
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, …
Biofrag – A New Database For Analyzing Biodiversity
Responses To Forest Fragmentation,
2014
Imperial College London
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 …
Spectroscopic Analysis Of Seasonal Changes In Live Fuel Moisture Content And Leaf Dry Mass,
2014
University of Utah
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.
Transdisciplinary Research On Environmental Governance: A View From The Inside,
2014
Colorado State University
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.
