85,564 research outputs found
First Nebraska Record for the Royal Tern (\u3ci\u3eSterna maxima\u3c/i\u3e) and a Review of Regional Records
On the afternoon of 8 Sept 2007, Don and Janis Paseka discovered a large tern on the causeway that separates Lake North from Lake Babcock, north of Columbus, Platte County, Nebraska. The causeway consists of a road next to Lake North and a low cement wall next to Lake Babcock. They observed the tern at approximately 1630 CDT standing on the low wall, on the west side of the causeway. The tern remained standing on the wall as they drove to within 15 feet and photographed it. The tern was standing with its wings drooping (Photo 1), and the fact that it allowed such a close approach indicated that it was in some distress, although there were no obvious injuries. The Caspian Tern (Sterna caspia) is the expected large tern species in Nebraska, but it was soon apparent from the white forehead, black crest, and the size and color of the bill that this was not a Caspian but a Royal Tern (Sterna maxima). After the initial sighting on 8 Sept 2007, the bird was observed and photographed on 9 Sep by multiple observers (NEbirds 2007). The bird was observed by Sarah Rehme on 9 Sep to be dragging its wings on the ground and stumbling, but it was still able to fly. This is the first documented occurrence of a Royal Tern in Nebraska (Sharpe et al. 2001). The tern was found dead at about 1330h, 10 Sept by William Flack. The carcass was salvaged by Rehme at 1500h on the same day under authorization of the Nebraska Game and Parks Commission. The carcass was donated to the University of Nebraska State Museum
Late Pennsylvanian and Early Permian Cyclic Sedimentation, Paleogeography, Paleoecology, and Biostratigraphy in Kansas and Nebraska
Overview of Upper Pennsylvanian Cyclic Sedimentation in Kansas and Nebraska Philip H. Heckel Department o( Geology University o( Iowa
Contributions from:
Christopher G. Maples, W. Lynn Watney Kansas Geological Survey, Lawrence, Kansas
John Harris Shell Western Exploration and Production, Inc., Houston, Texas
David Ball . Champlin Petroleum Co., Houston, Texas
Philip H. Heckel University of Iowa, Iowa City, Iowa
R. R. West, V. Voegeli, S. Roth, K. Leonard, H. R. Feldman, C. Cunningham Kansas State University, Manhattan, Kansas
Royal H. Mapes Ohio University, Athens, Ohio
Hans-Peter Schultze University of Kansas, Lawrence, Kansas
R. M. Joeckel Florida Museum of Natural History Gainesville, Florida
Peter Holterhoff University of Cincinnati, Cincinnati, Ohio
Theodore Huscher University of Nebraska-Lincol
The Politics of Macromarketing delivered as part of the Plenary Roundtable on Macromarketing and Politics
This roundtable session was delivered at the 36th Annual Macromarketing Conference in Williamsburg Virginia, June 2011. The purpose of this roundtable was to generate a critical debate about the politics of macromarketing.
Participants:
Ray Benton, Loyola University Chicago, USA
Alan Bradshaw, Royal Holloway College â University of London, UK
Janice Denegri-Knott, University of Bournemouth, UK
Sanford Grossbart, University of Nebraska, USA
Pia Polsa, HANKEN School of Economics, Finland
Ben Wooliscroft, University of Otago, NZ
Detlev Zwick, York University, Canad
The Role of Mesotocin on Social Bonding in Pinyon Jays
The neuropeptide oxytocin influences mammalian social bonding by facilitating the building and maintenance of parental, sexual, and sameâsex social relationships. However, we do not know whether the function of the avian homologue mesotocin is evolutionarily conserved across birds. While it does influence avian prosocial behavior, mesotocin\u27s role in avian social bonding remains unclear. Here, we investigated whether mesotocin regulates the formation and maintenance of sameâsex social bonding in pinyon jays (Gymnorhinus cyanocephalus), a member of the crow family. We formed squads of four individually housed birds. In the first, âpairâformationâ phase of the experiment, we repeatedly placed pairs of birds from within the squad together in a cage for short periods of time. Prior to entering the cage, we intranasally administered one of three hormone solutions to both members of the pair: mesotocin, oxytocin antagonist, or saline. Pairs received repeated sessions with administration of the same hormone. In the second, âpairâmaintenanceâ phase of the experiment, all four members of the squad were placed together in a large cage, and no hormones were administered. For both phases, we measured the physical proximity between pairs as our proxy for social bonding. We found that, compared with saline, administering mesotocin or oxytocin antagonist did not result in different proximities in either the pairâformation or pairâmaintenance phase of the experiment. Therefore, at the dosages and time frames used here, exogenously introduced mesotocin did not influence sameâsex social bond formation or maintenance. Like oxytocin in mammals, mesotocin regulates avian prosocial behavior; however, unlike oxytocin, we do not have evidence that mesotocin regulates social bonds in birds
âElizabethâs Ghost: The afterlife of the Queen in Stuart Englandâ
Toward the end of James Iâs reign John Reynoldsâ 1624 pamphlet, Vox Coeli, or News from Heaven, presents Queen Elizabeth I discussing Englandâs contemporary events with her father, her siblings, Anne of Denmark and Prince Henry. The heavenly Elizabeth supports a strong and militaristic England and is critical of the current king. In the latter part of the seventeenth century Elizabeth was presented as a Protestant heroine in contrast to the Catholic James, Duke of York, later James II. But there is one Stuart successor who is connected positively to Elizabeth. In 1706 in the reign of the last Stuartmonarch Elizabeth made another appearance in âQueen Elizabeths Ghost: or A Dream.â Unlike the earlier Elizabeth, this one praises Queen Anne, rather King James as her wor- thy successor. This paper examines a range of sources to further understand the impact Elizabeth Iâs afterlife had in the century after her death both in terms of politics and religion, and the perceptions of powerful women
Checklist and bibliography of the Trogidae (Coleoptera: Scarabaeoidea)
Presented is a checklist of the world Trogidae (Coleoptera: Scarabaeoidea) including synonyms, geographic distributions, type repositories where known, lists of valid species by genera and subgenera, citations of all papers containing original descriptions, and a supplemental literature section containing works on various other aspects of the family. The Literature Cited and Supplemental Literature sections combine to form a comprehensive bibliography
Risk and Cost Assessment of Nitrate Contamination in Domestic Wells
This study combines empirical predictive and economics models to estimate the cost of remediation for domestic wells exceeding suggested treatment thresholds for nitrates. A multiple logistic regression model predicted the probability of well contamination by nitrate, and a life cycle costing methodology was used to estimate costs of nitrate contamination in groundwater in two areas of Nebraska. In south-central Nebraska, 37% of wells were estimated to be at risk of exceeding a threshold of 7.5 mg/L as N, and 17% were at risk of exceeding 10 mg/L as N, the legal limit for human consumption in the United States. In an area in northeastern Nebraska, 82% of wells were at risk of exceeding the 10 mg/L as N legal threshold. Reverse osmosis Point-of-Use (POU) treatment was the option with the lowest costs for a household (3â4 individuals), with an average of 164 total regional cost per household per year depending on the threshold for treatment. Ion exchange and distillation were the next most cost-effective options. At the community level (~10,000 individuals), a reverse osmosis Point-of-Entry (POE) treatment system was the most expensive option for a community due to high initial costs and ongoing operation and maintenance costs, whereas the biological denitrification system was least expensive due to economies of scale. This study demonstrates integrated modeling methods to assess water treatment costs over time associated with groundwater nitrate contamination, including quantification of at-risk wells, and identifies suitable options for treatment systems for rural households and communities based on their cost
Convergence science in the Anthropocene: Navigating the known and unknown
Rapidly changing ecological and social systems currently pose significant societal challenges. Navigating the complexity of social-ecological change requires ap- proaches able to cope with, and potentially solve, both foreseen and unforeseen societal challenges.
The emergent field of convergence addresses the intricacies of such challenges, and is thus relevant to a broad range of interdisciplinary issues.
This paper suggests a way to conceptualize convergence research. It discusses how it relates to two major societal challenges (adaptation, transformation), and to the generation of policy-relevant science. It also points out limitations to the further development of convergence research
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