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Articles 31 - 52 of 52
Full-Text Articles in Other Environmental Sciences
Kori Bustards (Ardeotis Kori) Respond To Vegetation Density And Elevation In The Northern Tuli Game Reserve, Botswana L'Abondance De L'Outarde Kori (Ardeotis Kori) Varie Selon La Végétation Et L'Élévation Dans La Réserve De Chasse De Northern Tuli, Botswana, Kathryn R. Mccollum, Larkin A. Powell, Andrei Shyman, Mary Bomberger Brown, John P. Carroll
Kori Bustards (Ardeotis Kori) Respond To Vegetation Density And Elevation In The Northern Tuli Game Reserve, Botswana L'Abondance De L'Outarde Kori (Ardeotis Kori) Varie Selon La Végétation Et L'Élévation Dans La Réserve De Chasse De Northern Tuli, Botswana, Kathryn R. Mccollum, Larkin A. Powell, Andrei Shyman, Mary Bomberger Brown, John P. Carroll
School of Natural Resources: Faculty Publications
Conservation planning and decision making for species of concern requires precise information on abundance and habitat associations. We conducted transect surveys throughout the Northern Tuli Game Reserve, Botswana during June–July 2014 and May– July 2015 to estimate the occupancy and abundance of Kori Bustards (Ardeotis kori). The probability of occupancy of Kori Bustards was greater in areas with tree canopy cover ≤ 50% (ψ2014 = 0.37, SE ± 0.09; ψ2015 = 0.39, SE ± 0.06) when compared with areas with tree canopy cover > 50% (ψ2014 = 0.00, SE ± 0.00; ψ2015 = 0.00, SE ± 0.00). Densities of Kori Bustards …
Integrating Authentic Scientific Research In A Conservation Course-Based Undergraduate Research Experience, Amanda E. Sorensen, Lucia Corral, Jenny M. Dauer, Joseph J. Fontaine
Integrating Authentic Scientific Research In A Conservation Course-Based Undergraduate Research Experience, Amanda E. Sorensen, Lucia Corral, Jenny M. Dauer, Joseph J. Fontaine
School of Natural Resources: Faculty Publications
No abstract provided.
Factors Influencing Farmers Adoption Of Best Management Practices: A Review And Synthesis, Tingting Liu, Randall J.F. Bruins, Matthew T. Heberling
Factors Influencing Farmers Adoption Of Best Management Practices: A Review And Synthesis, Tingting Liu, Randall J.F. Bruins, Matthew T. Heberling
School of Natural Resources: Faculty Publications
No abstract provided.
Unusual Aerobic Performance At High Temperatures In Juvenile Chinook Salmon, Oncorhynchus Tshawytscha, Jamilynn B. Poletto, Dennis E. Cocherell, Sarah E. Baird, Trinh X. Nguyen, Valentina Cabrera-Stagno, Anthony P. Farrell, Nann A. Fangue
Unusual Aerobic Performance At High Temperatures In Juvenile Chinook Salmon, Oncorhynchus Tshawytscha, Jamilynn B. Poletto, Dennis E. Cocherell, Sarah E. Baird, Trinh X. Nguyen, Valentina Cabrera-Stagno, Anthony P. Farrell, Nann A. Fangue
School of Natural Resources: Faculty Publications
Understanding how the current warming trends affect fish populations is crucial for effective conservation and management. To help define suitable thermal habitat for juvenile Chinook salmon, the thermal performance of juvenile Chinook salmon acclimated to either 15 or 19°C was tested across a range of environmentally relevant acute temperature changes (from 12 to 26°C). Swim tunnel respirometers were used to measure routine oxygen uptake as a measure of routine metabolic rate (RMR) and oxygen uptake when swimming maximally as a measure of maximal metabolic rate (MMR) at each test temperature. We estimated absolute aerobic scope (AAS = MMR − RMR), …
Measuring Farmer Conservation Behaviors: Challenges And Best Practices, Kristin Floress, Adam Reimer, Aaron Thompson, Mark Burbach, Cody Knutson, Linda Prokopy, Marc Ribaudo, Jessica Ulrich-Schad
Measuring Farmer Conservation Behaviors: Challenges And Best Practices, Kristin Floress, Adam Reimer, Aaron Thompson, Mark Burbach, Cody Knutson, Linda Prokopy, Marc Ribaudo, Jessica Ulrich-Schad
School of Natural Resources: Faculty Publications
No abstract provided.
Exploration Of Student Biodiversity Knowledge And Decision-Making For A Wildlife Conservation Socioscientific Issue, Ashley R. Alred
Exploration Of Student Biodiversity Knowledge And Decision-Making For A Wildlife Conservation Socioscientific Issue, Ashley R. Alred
School of Natural Resources: Dissertations, Theses, and Student Research
Global biodiversity, a foundation for ecosystem function, is diminishing at a rate unprecedented in the last 50 years. Biodiversity loss and ecosystem services deterioration is linked to increased food insecurity, reduced water quality and availability, decreased energy security, higher economic losses and human suffering (Millennium Ecosystem Assessment, 2005). Consequently, educators should invest in supporting students in their development of ecological understanding and formal decision-making skills so they are equipped with meaningful tools they can use as scientifically literate citizens. To contribute to that mission, this study seeks to explore student 1) comprehension and explanation of biodiversity concepts and 2) decision-making …
Groundwater Declines Are Linked To Changes In Great Plains Stream Fish Assemblages, Joshuah S. Perkin, Keith B. Gido, Jeffrey A. Falke, Kurt D. Fausch, Harry Crockett, Eric R. Johnson, John Sanderson
Groundwater Declines Are Linked To Changes In Great Plains Stream Fish Assemblages, Joshuah S. Perkin, Keith B. Gido, Jeffrey A. Falke, Kurt D. Fausch, Harry Crockett, Eric R. Johnson, John Sanderson
United States Geological Survey: Staff Publications
Groundwater pumping for agriculture is a major driver causing declines of global freshwater ecosystems, yet the ecological consequences for stream fish assemblages are rarely quantified. We combined retrospective (1950–2010) and prospective (2011–2060) modeling approaches within a multiscale framework to predict change in Great Plains stream fish assemblages associated with groundwater pumping from the United States High Plains Aquifer. We modeled the relationship between the length of stream receiving water from the High Plains Aquifer and the occurrence of fishes characteristic of small and large streams in the western Great Plains at a regional scale and for six subwatersheds nested within …
Weights And Balances: Integrating Models For Prevention And Response To Southern California Offshore Oil Spills, Carmen Watts Clayton, Amoret Bunn
Weights And Balances: Integrating Models For Prevention And Response To Southern California Offshore Oil Spills, Carmen Watts Clayton, Amoret Bunn
STAR Program Research Presentations
Licensing offshore oil and gas reserves in the United States waters are overseen by the U.S. Department of the Interior’s Bureau of Safety and Enforcement (BSEE). The licensing application includes planning for any worst-case oil spill scenario between BSEE and the applicant based on lessons learned from historic offshore spills such as the Deepwater Horizon (2010), Exxon Valdez (1989), and the Union Oil Platform Blowout (1969). The process for planning to respond to oil spills involves coordination with multiple agencies, trustees, and stakeholders to ensure that oil spill responses consider multiple factors, including ecologically sensitive species, commercial transportation and fisheries, …
Fluctuating Fire Regimes And Their Historical Effects On Genetic Variation In An Endangered Shrubland Specialist, Hernan Vázquez-Miranda, Kelly R. Barr, C. Craig Farquhar, Robert M. Zink
Fluctuating Fire Regimes And Their Historical Effects On Genetic Variation In An Endangered Shrubland Specialist, Hernan Vázquez-Miranda, Kelly R. Barr, C. Craig Farquhar, Robert M. Zink
School of Natural Resources: Faculty Publications
The Pleistocene was characterized by worldwide shifts in community compositions. Some of these shifts were a result of changes in fire regimes, which influenced the distribution of species belonging to fire-dependent communities. We studied an endangered juniper–oak shrubland specialist, the black-capped vireo (Vireo atricapilla). This species was locally extirpated in parts of Texas and Oklahoma by the end of the 1980s as a result of habitat change and loss, predation, brood parasitism, and anthropogenic fire suppression. We sequenced multiple nuclear loci and used coalescence methods to obtain a deeper understanding of historical population trends than that typically available …
Fish-Protection Devices At Unscreened Water Diversions Can Reduce Entrainment: Evidence From Behavioural Laboratory Investigations, Jamilynn B. Poletto, Dennis E. Cocherell, Timothy D. Mussen, Ali Ercan, Hossein Bandeh, M. Levent Kavvas, Joseph J. Cech Jr., Nann A. Fangue
Fish-Protection Devices At Unscreened Water Diversions Can Reduce Entrainment: Evidence From Behavioural Laboratory Investigations, 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
Diversion (i.e. extraction) of water from rivers and estuaries can potentially affect native wildlife populations if operation is not carefully managed. For example, open, unmodified water diversions can act as a source of injury or mortality to resident or migratory fishes from entrainment and impingement, and can cause habitat degradation and fragmentation. Fish-protection devices, such as exclusion screens, louvres or sensory deterrents, can physically or behaviourally deter fish from approaching or being entrained into water diversions. However, empirical assessment of their efficacy is often lacking or is investigated only for particular economically or culturally important fishes, such as salmonids. The …
Effects Of Alternative Framing On The Publics Perceived Importance Of Environmental Conservation, Amanda E. Sorensen, Daniel Clark, Rebecca C. Jordan
Effects Of Alternative Framing On The Publics Perceived Importance Of Environmental Conservation, Amanda E. Sorensen, Daniel Clark, Rebecca C. Jordan
School of Natural Resources: Faculty Publications
Effective communication of science to the general public is important for numerous reasons, including support for policy, funding, informed public decision making, among others. Prior research has found that scientists participating in public policy and public communication must frame their communication efforts in order to connect with audiences. A frame is the mechanism that individuals use to understand and interpret the world around them. Framing can encourage specific interpretations and reference points for a particular issue or event; especially when meaning is negotiated between the media and public audiences. In this study, we looked at the effect of framing within …
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
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 …
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
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 …
The Influence Of Different Cover Types On American Robin Nest Success In Organic Agroecosystems, John E. Quinn, Amy I. Oden, James R. Brandle
The Influence Of Different Cover Types On American Robin Nest Success In Organic Agroecosystems, John E. Quinn, Amy I. Oden, James R. Brandle
School of Natural Resources: Faculty Publications
There are many opportunities for biodiversity conservation in organic farm systems. Successful and sustainable conservation efforts in organic systems, however, need to measure appropriate outcomes. In particular, data are needed on the breeding success of associated wildlife species. We measured nesting success of the American Robin (Turdus migratorius) in woodlands embedded within eight organic farms in eastern Nebraska. We modeled daily nest survival rate to identify land use and land cover patterns that optimize conservation of birds in organic farm systems. The percentage of a crop in the fields adjacent to linear woodlands best predicted daily survival rate. …
Empathy-Based Conservation: An Interdisciplinary Approach To Conservation Policy And Decision-Making, Kaitlyn Delashmutt
Empathy-Based Conservation: An Interdisciplinary Approach To Conservation Policy And Decision-Making, Kaitlyn Delashmutt
Department of Environmental Studies: Undergraduate Student Theses
In the late 20th century, neuroscientists in Italy discovered a neuron in the brain capable of mentally mimicking the emotions derived from the actions of others (Rizzolatti and Craighero, 2004). It is the process that makes your elbow ache when someone else knocks their elbow on the counter or the uncontrollable smile that creeps up when someone smiles at you. No questions asked, people intuitively sense what others are feeling. The old school of thought was that humans deduced through logic and reason the actions of others and interpreted the emotions through a rational process (Carew et al, 2008). …
Nebraska's Tern And Plover Conservation Partnership -- A Model For Sustainable Conservation Of Threatened And Endangered Species, Mary Bomberger Brown, Mark E. Burbach, John Dinan, Renae J. Held, Ron J. Johnson, Joel G. Jorgensen, Jeanine Lackey, Jeffrey F. Marcus, Gina S. Matkin, Christine M. Thody
Nebraska's Tern And Plover Conservation Partnership -- A Model For Sustainable Conservation Of Threatened And Endangered Species, Mary Bomberger Brown, Mark E. Burbach, John Dinan, Renae J. Held, Ron J. Johnson, Joel G. Jorgensen, Jeanine Lackey, Jeffrey F. Marcus, Gina S. Matkin, Christine M. Thody
School of Natural Resources: Faculty Publications
Implementing successful conservation programs is critical if we are to protect the earth's most imperiled species. These programs must respect state and federal legal concerns as well as local economic and social interests, Here we describe a sustainable partnership approach to Piping Plover and Interior Least Tern conservation in Nebraska, USA. Partners include industry groups, federal, state, and local agencies, and non-governmental organizations. The factor that unifies all partners is a desire to accomplish cooperative threatened and endangered species conservation. We believe that implementing this sort of partnership model could be useful in addressing the protection of other species of …
Introgression And Dispersal Among Spotted Owl (Strix Occidentalis) Subspecies, W. Chris Funk, Eric D. Forsman, Thomas D. Mullins, Susan M. Haig
Introgression And Dispersal Among Spotted Owl (Strix Occidentalis) Subspecies, W. Chris Funk, Eric D. Forsman, Thomas D. Mullins, Susan M. Haig
United States Geological Survey: Staff Publications
Population genetics plays an increasingly important role in the conservation and management of declining species, particularly for defining taxonomic units. Subspecies are recognized by several conservation organizations and countries and receive legal protection under the US Endangered Species Act (ESA). Two subspecies of spotted owls, northern (Strix occidentalis caurina) and Mexican (S. o. lucida) spotted owls, are ESA-listed as threatened, but the California (S. o. occidentalis) spotted owl is not listed. Thus, determining the boundaries of these subspecies is critical for effective enforcement of the ESA. We tested the validity of previously recognized spotted …
Conservation And Beneficial Functions Of Grassland Birds In Agroecosystems, Andrea Victoria Hanson
Conservation And Beneficial Functions Of Grassland Birds In Agroecosystems, Andrea Victoria Hanson
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Achieving Bat Conservation Through Tourism, Lisa A. Pennisi, Stephen M. Holland, Taylor V. Stein
Achieving Bat Conservation Through Tourism, Lisa A. Pennisi, Stephen M. Holland, Taylor V. Stein
School of Natural Resources: Faculty Publications
No abstract provided.
Modeling Viable Mammal Populations In Gap Analyses, Craig R. Allen, L. G. Pearlstine
Modeling Viable Mammal Populations In Gap Analyses, Craig R. Allen, L. G. Pearlstine
Nebraska Cooperative Fish and Wildlife Research Unit: Staff Publications
Gap analysis is an approach to conserving biological diversity that maps species richness and identifies sites that ought to be protected but are not in conservation networks. Gap analyses based on species richness may have high error rates when species models are based solely on species-habitat association, because patches too small to support populations are still considered to be potential habitat. We incorporated information on the home range and dispersal distances of the mammals of Florida to estimate minimum critical areas (MCA) to support minimum viable populations for each mammal species. Incorporating MCA decreases the area occupied by the highest …
Propagation Of Juniperus For Conservation Plantings In The Great Plains, Scott Allen Lee
Propagation Of Juniperus For Conservation Plantings In The Great Plains, Scott Allen Lee
School of Natural Resources: Dissertations, Theses, and Student Research
No abstract provided.
Opportunities To Increase Tree Planting In Shelterbelts And The Potential Impacts On Carbon Storage And Conservation, James R. Brandle
Opportunities To Increase Tree Planting In Shelterbelts And The Potential Impacts On Carbon Storage And Conservation, James R. Brandle
School of Natural Resources: Faculty Publications
No abstract provided.