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Natural Resources Management and Policy
University of Nebraska - Lincoln
- Keyword
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- Diurnal fluctuations (2)
- Groundwater-level (2)
- Riparian ET (2)
- Riparian zone (2)
- Streamflow (2)
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- Agricultural green revolution (1)
- Air temperatures (1)
- Baseflow recession (1)
- Between (1)
- Complementary relationship (1)
- Desperate larva hypothesis (1)
- Evaporation (1)
- Evapotranspiration (1)
- Fish species diversity (1)
- Habitat choice (1)
- Heterogeneous land uses (1)
- Hydroclimatic conditions (1)
- Impacts (1)
- India (1)
- Infiltration excess (1)
- Kinematic wave equation (1)
- Land use changes (1)
- Larval settlement behavior (1)
- Missouri River restoration (1)
- Multiple depths (1)
- Near surface (1)
- Nonlinear runoff response (1)
- Penman (1)
- Priestley-Taylor (1)
- Relationship (1)
Articles 1 - 17 of 17
Full-Text Articles in Physical Sciences and Mathematics
Unresolved Issues With The Assessment Of Multidecadal Global Land Surface Temperature Trends, Roger A. Pielke Sr., Christopher A. Davey, Dev Niyogi, Souleymane Fall, Jesse Steinweg-Woods, Ken Hubbard, Xiaomao Lin, Ming Cai, Young-Kwon Lim, Hong Li, John Nielsen-Gammon, Kevin Gallo, Robert Hale, Rezaul Mahmood, Stuart Foster, Richard T. Mcnider, Peter Blanken
Unresolved Issues With The Assessment Of Multidecadal Global Land Surface Temperature Trends, Roger A. Pielke Sr., Christopher A. Davey, Dev Niyogi, Souleymane Fall, Jesse Steinweg-Woods, Ken Hubbard, Xiaomao Lin, Ming Cai, Young-Kwon Lim, Hong Li, John Nielsen-Gammon, Kevin Gallo, Robert Hale, Rezaul Mahmood, Stuart Foster, Richard T. Mcnider, Peter Blanken
School of Natural Resources: Faculty Publications
This paper documents various unresolved issues in using surface temperature trends as a metric for assessing global and regional climate change. A series of examples ranging from errors caused by temperature measurements at a monitoring station to the undocumented biases in the regionally and globally averaged time series are provided. The issues are poorly understood or documented and relate to micrometeorological impacts due to warm bias in nighttime minimum temperatures, poor siting of the instrumentation, effect of winds as well as surface atmospheric water vapor content on temperature trends, the quantification of uncertainties in the homogenization of surface temperature data, …
If Larvae Were Smart: A Simple Model For Optimal Settlement Behavior Of Competent Larvae, Robert J. Toonen, Andrew J. Tyre
If Larvae Were Smart: A Simple Model For Optimal Settlement Behavior Of Competent Larvae, Robert J. Toonen, Andrew J. Tyre
School of Natural Resources: Faculty Publications
Much research has been done on larval settlement cues. Rather than having simple fixed responses to constant environmental stimuli, it seems likely that settlement decisions made by individual larvae should vary depending on the individual and the conditions under which it encounters that cue. Here, we present a simple stochastic dynamic programming model that explores the conditions under which larvae may maximize their lifetime fitness by accepting lower quality habitat rather than continuing to search for superior habitat. Our model predicts that there is a relatively narrow range of parameter values over which larval selectivity among habitat types changes dramatically …
Increase In Near-Surface Atmospheric Moisture Content Due To Land Use Changes: Evidence From The Observed Dewpoint Temperature Data, Rezaul Mamood, Kenneth G. Hubbard, Ronnie D. Leeper, Stuart A. Foster
Increase In Near-Surface Atmospheric Moisture Content Due To Land Use Changes: Evidence From The Observed Dewpoint Temperature Data, Rezaul Mamood, Kenneth G. Hubbard, Ronnie D. Leeper, Stuart A. Foster
School of Natural Resources: Faculty Publications
Land use change can significantly affect root zone soil moisture, surface energy balance, and near-surface atmospheric temperature and moisture content. During the second half of the twentieth century, portions of the North American Great Plains have experienced extensive introduction of irrigated agriculture. It is expected that land use change from natural grass to irrigated land use would significantly increase nearsurface atmospheric moisture content. Modeling studies have already shown an enhanced rate of evapotranspiration from the irrigated areas. The present study analyzes observed dewpoint temperature (Td) to assess the affect of irrigated land use on near-surface atmospheric moisture content. This investigation …
Patterns Of Fish Diversity In A Mainstem Missouri River Reservoir And Associated Delta In South Dakota And Nebraska, Usa, Mark A. Kaemingk, Brian D.S. Graeb, Christopher W. Hoagstrom, David W. Willis
Patterns Of Fish Diversity In A Mainstem Missouri River Reservoir And Associated Delta In South Dakota And Nebraska, Usa, Mark A. Kaemingk, Brian D.S. Graeb, Christopher W. Hoagstrom, David W. Willis
School of Natural Resources: Faculty Publications
There is an expansive and expanding delta at the confluence of the Niobrara and Missouri Rivers in the Lewis and Clark Reservoir. The delta provides diverse aquatic habitat that is somewhat similar to the historic Missouri River and to remnant river habitats. As such, the delta may have relatively high fish species diversity compared to lentic reservoir habitats. To compare patterns of fish diversity between the delta and reservoir habitats, we collected fish in several nursery habitats in both areas using four gear types (seine, gill net, electrofisher and fyke net) on three occasions (July, August and September) in 2005. …
Documentation Of Uncertainties And Biases Associated With Surface Temperature Measurement Sites For Climate Change Assessment, Roger A. Pielke Sr., John Nielsen-Gammon, Christopher Davey, Jim Angel, Odie Bliss, Nolan Doesken, Ming Cal, Souleymane Fall, Dev Niyogi, Kevin Gallo, Robert Hale, Kenneth Hubbard, Xiaomao Lin, Hong Li, Sethu Raman
Documentation Of Uncertainties And Biases Associated With Surface Temperature Measurement Sites For Climate Change Assessment, Roger A. Pielke Sr., John Nielsen-Gammon, Christopher Davey, Jim Angel, Odie Bliss, Nolan Doesken, Ming Cal, Souleymane Fall, Dev Niyogi, Kevin Gallo, Robert Hale, Kenneth Hubbard, Xiaomao Lin, Hong Li, Sethu Raman
School of Natural Resources: Faculty Publications
Davey and Pielke (2005) presented photographic documentation of poor observation sites within the U.S. Historical Climate Reference Network (USHCN) with respect to monitoring long-term surface air temperature trends. [These photographs were first shown to the community at the 2002 Asheville, North Carolina, meeting of the American Association of State Climatologists (see information online at www. stateclimate.org/meetings/minutes/2002minutes).] Peterson (2006) compared the adjusted climate records of many of these stations and concluded that the similarity between the homogeneity adjusted time series from the good and poorly sited stations supports the view that even stations that do not, upon visual inspection, appear to …
Development Of The Soil Moisture Index To Quantify Agricultural Drought And Its “User Friendliness” In Severity-Area-Duration Assessment, Venkataramana Sridhar, Kenneth Hubbard, Jinshing You, Eric D. Hunt
Development Of The Soil Moisture Index To Quantify Agricultural Drought And Its “User Friendliness” In Severity-Area-Duration Assessment, Venkataramana Sridhar, Kenneth Hubbard, Jinshing You, Eric D. Hunt
School of Natural Resources: Faculty Publications
This paper examines the role of soil moisture in quantifying drought through the development of a drought index using observed and modeled soil moisture. In Nebraska, rainfall is received primarily during the crop-growing season and the supply of moisture from the Gulf of Mexico determines if the impending crop year is either normal or anomalous and any deficit of rain leads to a lack of soil moisture storage. Using observed soil moisture from the Automated Weather Data Network (AWDN), the actual available water content for plants is calculated as the difference between observed or modeled soil moisture and wilting point, …
Impacts Of Predators On Northern Bobwhites In The Southeast, John P. Carroll, Susan N. Ellis-Felege, William E. Palmer
Impacts Of Predators On Northern Bobwhites In The Southeast, John P. Carroll, Susan N. Ellis-Felege, William E. Palmer
School of Natural Resources: Faculty Publications
The northern bobwhite quail (Colinus virginianus) is an important game bird that is intensively managed for hunting recreation in the southeastern United States. Despite interest regionwide, populations have been declining for much of the last 40 years (Brennan 1999). Population declines in the Southeast have occurred as a result of widespread habitat loss associated with land-use changes (Brennan 1999). These land-use changes include both conversion from agricultural to forest landscapes and changes in forest management practices, which result in dense forest canopies that shade required ground vegetation (Brennan 1999, Rollins and Carroll 2001). In addition, low-quality habitats may …
Vegetative And Invertebrate Community Characteristics Of Conservation Reserve Program Fields Relative To Gamebirds In Western Kansas, Elizabeth D. Doxon, John P. Carroll
Vegetative And Invertebrate Community Characteristics Of Conservation Reserve Program Fields Relative To Gamebirds In Western Kansas, Elizabeth D. Doxon, John P. Carroll
School of Natural Resources: Faculty Publications
We examined vegetation and invertebrate characteristics, including insect biomass, insect-prey, six Families and seven Orders in four varieties of Conservation Reserve Program (CP10, improved CP10, CP2 and CP25) and wheat fields in western Kansas during Jun. and Jul., 2004 and 2005 relative to gamebird chick ecology. CP10 fields had less bare ground and forbs compared to the other Conservation Practices and CP25 fields had lost much of their original forb component by the end of the study. Although there was little forb component, CP10 fields had high invertebrate biomass. However, CP10 fields demonstrated sizeable declines in the estimated effect size …
Nutrient Cycling In Forage Production Systems, David A. Wedin, Michael P. Russelle
Nutrient Cycling In Forage Production Systems, David A. Wedin, Michael P. Russelle
School of Natural Resources: Faculty Publications
In most forage production systems, the nutrients needed for plant growth are provided by microbially mediated breakdown and release of plant-available mineral nutrients from dead plant tissues, livestock excreta, soil organic matter, and geochemically bound mineral forms. Even in fertilized forage systems, determining appropriate fertilizer application rates requires a "systems" approach on the part of the manager (e.g., Di and Cameron, 2000; Rotz et al., 2002). Fertilizer additions are simply one input in the system of inputs, outputs, pools, and fluxes that characterize nutrient cycling in a particular ecosystem.
Analysis Of The Nonlinearity In The Runoff Response To Precipitation Through Numerical Modeling, Jozsef Szilagyi
Analysis Of The Nonlinearity In The Runoff Response To Precipitation Through Numerical Modeling, Jozsef Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.
On Diurnal Riparian Zone Groundwater-Level And Streamflow Fluctuations, Jozsef Szilagyi, Zoltan Gribovszki, Peter Kalicz, Mihaly Kucsara
On Diurnal Riparian Zone Groundwater-Level And Streamflow Fluctuations, Jozsef Szilagyi, Zoltan Gribovszki, Peter Kalicz, Mihaly Kucsara
School of Natural Resources: Faculty Publications
No abstract provided.
On The Inherent Asymmetric Nature Of The Complementary Relationship Of Evaporation, Jozsef Szilagyi
On The Inherent Asymmetric Nature Of The Complementary Relationship Of Evaporation, Jozsef Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.
Estimation Of Catchment-Scale Evapotranspiration From Baseflow Recession Data: Numerical Model And Practical Application Results, Jozsef Szilagyi, Zoltan Gribovszki, Peter Kalicz
Estimation Of Catchment-Scale Evapotranspiration From Baseflow Recession Data: Numerical Model And Practical Application Results, Jozsef Szilagyi, Zoltan Gribovszki, Peter Kalicz
School of Natural Resources: Faculty Publications
No abstract provided.
Hungarian National Report On Iahs: 2003-2006, Jozsef Szilagyi
Hungarian National Report On Iahs: 2003-2006, Jozsef Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.
On The Inherent Asymmetric Nature Of The Complementary Relationship Of Evaporation, Jozsef Szilagyi
On The Inherent Asymmetric Nature Of The Complementary Relationship Of Evaporation, Jozsef Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.
Impacts Of The Agricultural Green Revolution Induced Land Use Changes On Air Temperatures In India, Rezaul Mahmood
Impacts Of The Agricultural Green Revolution Induced Land Use Changes On Air Temperatures In India, Rezaul Mahmood
School of Natural Resources: Faculty Publications
No abstract provided.
Relationship Between Soil Moisture Of Near Surface And Multiple Depths Of The Root Zone Under Heterogeneous Land Uses And Varying Hydroclimatic Conditions, Rezaul Mahmood
School of Natural Resources: Faculty Publications
No abstract provided.