The Spatial Sensitivity Of The Spectral Diversity–Biodiversity
Relationship: An Experimental Test In A Prairie Grassland,
2018
University of Alberta
The Spatial Sensitivity Of The Spectral Diversity–Biodiversity Relationship: An Experimental Test In A Prairie Grassland, Ran Wang, John A. Gamon, Jeannine Cavender-Bares, Philip A. Townsend, Arthur I. Zygielbaum
School of Natural Resources: Faculty Publications
Remote sensing has been used to detect plant biodiversity in a range of ecosystems based on the varying spectral properties of different species or functional groups. However, the most appropriate spatial resolution necessary to detect diversity remains unclear. At coarse resolution, differences among spectral patterns may be too weak to detect. In contrast, at fine resolution, redundant information may be introduced. To explore the effect of spatial resolution, we studied the scale dependence of spectral diversity in a prairie ecosystem experiment at Cedar Creek Ecosystem Science Reserve, Minnesota, USA. Our study involved a scaling exercise comparing synthetic pixels resampled from …
Extreme Group Sizes In A Colonial Bird Favored During A Rare
Climatic Event,
2018
University of Tulsa
Extreme Group Sizes In A Colonial Bird Favored During A Rare Climatic Event, Charles R. Brown, Mary B. Brown
School of Natural Resources: Faculty Publications
What maintains stasis in animal group-size distributions is an unresolved problem in behavioral ecology. One potential driver could be rare climatic events that favor certain group sizes in ways that do not occur in normal conditions. We investigated mortality among colonially nesting cliff swallows (Petrochelidon pyrrhonota) during a rare climatic event in western Nebraska in 1996 that led to the starvation of thousands of adult birds. Colonies at the extreme end of the size distribution exhibited less size reduction (higher adult survival) than those of intermediate size. That this event resulted in disruptive selection on colony size was …
Enhancing Quantitative Approaches For Assessing Community Resilience,
2018
U.S. Environmental Protection Agency
Enhancing Quantitative Approaches For Assessing Community Resilience, W. C. Chuang, A. Garmestani, T. N. Eason, T. L. Spanbauer, H. B. Fried-Peterson, C. P. Roberts, S. M. Sundstrom, J. L. Burnett, D. G. Angeler, B. C. Chaffin, L. Gunderson, D. Twidwell, C. R. Allen
School of Natural Resources: Faculty Publications
Scholars from many different intellectual disciplines have attempted to measure, estimate, or quantify resilience. However, there is growing concern that lack of clarity on the operationalization of the concept will limit its application. In this paper, we discuss the theory, research development and quantitative approaches in ecological and community resilience. Upon noting the lack of methods that quantify the complexities of the linked human and natural aspects of community resilience, we identify several promising approaches within the ecological resilience tradition that may be useful in filling these gaps. Further, we discuss the challenges for consolidating these approaches into a more …
Tiered Approach To Resilience Assessment,
2018
US Army Corps of Engineers
Tiered Approach To Resilience Assessment, Igor Linkov, Cate Fox-Lent, Laura Read, Craig R. Allen, James C. Arnott, Emanuele Bellini, Jon Coaffee, Marie-Valentine Florin, Kirk Hatfield, Iain Hyde, William Hynes, Aleksandar Jovanovic, Roger Kasperson, John Katzenberger, Patrick W. Keys, James H. Lambert, Richard Moss, Peter S. Murdoch, Jose Palma-Oliveira, Roger S. Pulwarty, Dale Sands, Edward A. Thomas, Mari R. Tye, David Woods
School of Natural Resources: Faculty Publications
Regulatory agencies have long adopted a three-tier framework for risk assessment. We build on this structure to propose a tiered approach for resilience assessment that can be integrated into the existing regulatory processes. Comprehensive approaches to assessing resilience at appropriate and operational scales, reconciling analytical complexity as needed with stakeholder needs and resources available, and ultimately creating actionable recommendations to enhance resilience are still lacking. Our proposed framework consists of tiers by which analysts can select resilience assessment and decision support tools to inform associated management actions relative to the scope and urgency of the risk and the capacity of …
River Otter Distribution In Nebraska,
2018
University of Nebraska-Lincoln
River Otter Distribution In Nebraska, Nathan R. Bieber, Samuel P. Wilson, Craig R. Allen
School of Natural Resources: Faculty Publications
The river otter (Lontra canadensis) was extirpated from Nebraska, USA, in the early 1900s and reintroduced starting in 1986. Information is needed regarding the distribution of river otters in Nebraska before decisions can be made regarding its conservation status. Understanding distribution of a species is critically important for effective management. We investigated river otter distribution in Nebraska with occupancy modeling and maximum entropy (Maxent) modeling using 190 otter sign observations on Nebraska’s navigable rivers and 380 historical otter records from November 1977 to April 2014. Both methods identified the Platte River, Elkhorn River, central and eastern Niobrara River, …
The Distribution And Role Of Functional Abundance In Cross‐Scale Resilience,
2018
University of Nebraska-Lincoln
The Distribution And Role Of Functional Abundance In Cross‐Scale Resilience, Shana M. Sundstrom, David G. Angeler, Chris Barichievy, Tarsha Eason, Ahjond Garmestani, Lance Gunderson, Melinda Knutson, Kirsty L. Nash, Trisha Spanbauer, Craig Stow, Craig R. Allen
School of Natural Resources: Faculty Publications
The cross-scale resilience model suggests that system-level ecological resilience emerges from the distribution of species’ functions within and across the spatial and temporal scales of a system. It has provided a quantitative method for calculating the resilience of a given system and so has been a valuable contribution to a largely qualitative field. As it is currently laid out, the model accounts for the spatial and temporal scales at which environmental resources and species are present and the functional roles species play but does not inform us about how much resource is present or how much function is provided. In …
The Perpetual State Of Emergency That Sacrifices Protected Areas In A Changing Climate,
2018
University of Nebraska-Lincoln
The Perpetual State Of Emergency That Sacrifices Protected Areas In A Changing Climate, Dirac Twidwell, Carissa L. Wonkka, Christine H. Bielski, Craig R. Allen, David G. Angeler, Jacob Drozda, Ahjond S. Garmestani, Julia Johnson, Larkin A. Powell, Caleb P. Roberts
School of Natural Resources: Faculty Publications
A modern challenge for conservation biology is to assess the consequences of policies that adhere to assumptions of stationarity (e.g., historic norms) in an era of global environmental change. Such policies may result in unexpected and surprising levels of mitigation given future climate-change trajectories, especially as agriculture looks to protected areas to buffer against production losses during periods of environmental extremes. We assessed the potential impact of climate-change scenarios on the rates at which grasslands enrolled in the Conservation Reserve Program (CRP) are authorized for emergency harvesting (i.e., biomass removal) for agricultural use, which can occur when precipitation for the …
Comparison Of Agricultural Stakeholder Survey Results And Drought Monitoring Datasets During The 2016 Us Northern Plains Flash Drought,
2018
University of Wisconsin-Madison
Comparison Of Agricultural Stakeholder Survey Results And Drought Monitoring Datasets During The 2016 Us Northern Plains Flash Drought, Jason A. Otkin, Tonya Haigh, Anthony Mucia, Martha Anderson, Christopher Hain
School of Natural Resources: Faculty Publications
No abstract provided.
Assessing Responses Of Betula Papyrifera To Climate Variability In A Remnant Population Along The Niobrara River Valley In Nebraska, U.S.A., Through Dendroecological And Remote-Sensing Techniques,
2018
University of Nebraska-Lincoln
Assessing Responses Of Betula Papyrifera To Climate Variability In A Remnant Population Along The Niobrara River Valley In Nebraska, U.S.A., Through Dendroecological And Remote-Sensing Techniques, E. Bumann, T. Awada, B. Wardlow, M. Hayes, J. Okalebo, C. Helzer, A. Mazis, J. Hiller, P. Cherubini
School of Natural Resources: Faculty Publications
No abstract provided.
Ranchers: Perceptions Of Vegetation Heterogeneity In The Northern Great Plains,
2018
University of Nebraska - Lincoln
Ranchers: Perceptions Of Vegetation Heterogeneity In The Northern Great Plains, Maggi Sliwinski, Mark Burbach, Larkin A. Powell, Walter Schacht
School of Natural Resources: Faculty Publications
No abstract provided.
An Analysis Of Agreement Between Volunteer- And Researcher-Collected Urban Tree Inventory Data,
2018
University of Minnesota
An Analysis Of Agreement Between Volunteer- And Researcher-Collected Urban Tree Inventory Data, Nick Bancks, Eric A. North, Gary R. Johnson
School of Natural Resources: Faculty Publications
No abstract provided.
Changes In Co2 During The Ocean Anoxic Event 1d Indicate Similarities To Other Carbon Cycle Perturbations,
2018
Texas State University-San Marcos
Changes In Co2 During The Ocean Anoxic Event 1d Indicate Similarities To Other Carbon Cycle Perturbations, Jon D. Richey, Garland R. Upchurch, Isabel P. Montanez, Barry H. Lomax, Marina B. Suarez, Neil M.J. Crout, R.M. Joeckel, Greg A. Ludvigson, Jon J. Smith
School of Natural Resources: Faculty Publications
No abstract provided.
Water In Society: An Interdisciplinary Course To Support Undergraduate Students' Water Literacy,
2018
University of Nebraska-Lincoln
Water In Society: An Interdisciplinary Course To Support Undergraduate Students' Water Literacy, Cory T. Forbes, Nicholas Brozovic, Trenton E. Franz, Diane E. Lally, Destini N. Petitt
School of Natural Resources: Faculty Publications
No abstract provided.
Tree Rings Of Pinus Ponderosa And Juniperus Virginiana Show Different Responses To Stand Density And Water Availability In The Nebraska Grassland,
2018
University of Zurich
Tree Rings Of Pinus Ponderosa And Juniperus Virginiana Show Different Responses To Stand Density And Water Availability In The Nebraska Grassland, R. Aus Der Au, Tala Awada, J. Hiller, G. Battipaglia, M. Saurer, P. Cherubini
School of Natural Resources: Faculty Publications
No abstract provided.
The Ups And Downs Of Nebraska: Recognizing Gilgai In The State,
2018
University of Nebraska-Lincoln
The Ups And Downs Of Nebraska: Recognizing Gilgai In The State, R.M. Joeckel, L.M. Howard
School of Natural Resources: Faculty Publications
No abstract provided.
Supporting Science Teachers In Creating Lessons With Explicit Conceptual Storylines,
2018
University of Nebraska-Lincoln
Supporting Science Teachers In Creating Lessons With Explicit Conceptual Storylines, Dante Cisterna, Kelsey Lipsitz, Deborah Hanuscin, Zandra De Araujo, Delinda Van Garderen
School of Natural Resources: Faculty Publications
No abstract provided.
African Lion (Panthera Leo) Space Use In The Greater Mapungubwe Transfrontier Conservation Area,
2018
Mashatu Research
African Lion (Panthera Leo) Space Use In The Greater Mapungubwe Transfrontier Conservation Area, Andrei Snyman, Edward Raynor, Chris Chizinski, Larkin Powell, John Carroll
School of Natural Resources: Faculty Publications
No abstract provided.
Anthropogenic Hydrological Cycle Disturbance At A Regional Scale: State-Wide Evapotranspiration Trends (1979-2015) Across Nebraska, Usa,
2018
University of Nebraska-Lincoln
Anthropogenic Hydrological Cycle Disturbance At A Regional Scale: State-Wide Evapotranspiration Trends (1979-2015) Across Nebraska, Usa, Jozsef Szilagyi
School of Natural Resources: Faculty Publications
No abstract provided.
Conforming To Or Defying Gender Stereotypes? Empathy Nudging Vs. Financial Incentives In Environmental Context,
2018
University of Michigan-Dearborn
Conforming To Or Defying Gender Stereotypes? Empathy Nudging Vs. Financial Incentives In Environmental Context, Natalia V. Czap, Hans J. Czap, Marianna Khachaturyan, Mark E. Burbach
School of Natural Resources: Faculty Publications
No abstract provided.
Enactment Of Ongoing Formative Assessment: Challenges And Opportunities For Professional Development And Practice,
2018
University of Nebraska-Lincoln
Enactment Of Ongoing Formative Assessment: Challenges And Opportunities For Professional Development And Practice, Dante Cisterna, Amelia Wenk Gotwals
School of Natural Resources: Faculty Publications
No abstract provided.
