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Articles 1 - 11 of 11
Full-Text Articles in Life Sciences
Spatial And Seasonal Variation In Wildlife-Vehicle Collisions, Jonathan M. Conard, Philip S. Gipson
Spatial And Seasonal Variation In Wildlife-Vehicle Collisions, Jonathan M. Conard, Philip S. Gipson
The Prairie Naturalist
To understand seasonal variation in the number of wildlife-vehicle collisions and the influence of land cover type on collision distribution we counted road-kill carcasses for 84 weeks along a 40 km route on two state highways in northeastern Kansas. We noted land cover type adjacent to each road-kill and tested the null hypothesis that road-kills were distributed randomly with respect to land cover type. Wildlife-vehicle collisions were not distributed randomly in relation to land cover availability. Instead, collisions occurred more often then expected adjacent to riparian areas and less often than expected adjacent to agricultural fields. Wildlife-vehicle collisions varied seasonally …
Blanding’S Turtle (Emydoidea Blandingii): A Technical Conservation Assessment, Justin D. Congdon, Douglas A. Keinath
Blanding’S Turtle (Emydoidea Blandingii): A Technical Conservation Assessment, Justin D. Congdon, Douglas A. Keinath
USDA Forest Service / UNL Faculty Publications
Blanding’s turtles (Emydoidea blandingii) are secure in Nebraska, and they range from being vulnerable to threatened, or endangered throughout most of the rest of their distribution. In Region 2, they have not been reported from Kansas, they are extremely rare in South Dakota, and they occupy wetlands in the northern half of Nebraska. The largest population known within the range of Blanding’s turtles is at Valentine National Wildlife Refuge, Nebraska.
The core habitat of Blanding’s turtles has an aquatic component that consists of a permanent wetland and a suite of other, usually smaller and more temporary, wetlands such …
Slides: In The Nick Of Time: Pathways To A Post-2012 Climate Treaty Framework, Annie Petsonk
Slides: In The Nick Of Time: Pathways To A Post-2012 Climate Treaty Framework, Annie Petsonk
Climate Change and the Future of the American West: Exploring the Legal and Policy Dimensions (Summer Conference, June 7-9)
Presenter: Annie Petsonk, Environmental Defense, Washington, DC.
22 slides.
Slides: The Cdm Carbon Market And The Upcoming U.S. Market, Evan A. Evans
Slides: The Cdm Carbon Market And The Upcoming U.S. Market, Evan A. Evans
Climate Change and the Future of the American West: Exploring the Legal and Policy Dimensions (Summer Conference, June 7-9)
Presenter: Evan A. Evans, P.E., Vice President and Director of Engineering, Econergy International, Boulder, CO.
15 slides.
Slides: Agriculture: Climate Change Problem, Solution, Or Both? And U.S. Agriculture And Climate Change: Challenge And Opportunity, David L. Carlson
Slides: Agriculture: Climate Change Problem, Solution, Or Both? And U.S. Agriculture And Climate Change: Challenge And Opportunity, David L. Carlson
Climate Change and the Future of the American West: Exploring the Legal and Policy Dimensions (Summer Conference, June 7-9)
Presenter: David L. Carlson, President, Resource Analysis, Inc., Denver, CO.
1 page and 19 slides.
Contains footnotes.
Slides: The Real Biofuel Cycles And The Earth, Biofuels, And Reality, Tad W. Patzek
Slides: The Real Biofuel Cycles And The Earth, Biofuels, And Reality, Tad W. Patzek
Climate Change and the Future of the American West: Exploring the Legal and Policy Dimensions (Summer Conference, June 7-9)
Presenter: Tad W. Patzek, Professor of Petroleum Engineering, University of California at Berkeley, Berkeley, CA
2 pages and 29 slides.
Contains footnotes.
Agenda: Climate Change And The Future Of The American West: Exploring The Legal And Policy Dimensions, University Of Colorado Boulder. Natural Resources Law Center
Agenda: Climate Change And The Future Of The American West: Exploring The Legal And Policy Dimensions, University Of Colorado Boulder. Natural Resources Law Center
Climate Change and the Future of the American West: Exploring the Legal and Policy Dimensions (Summer Conference, June 7-9)
Sponsors: The William and Flora Hewlett Foundation; BP America; Holland & Hart; Patrick, Miller & Krope, P.C.; The Rocky Mountain Mineral Law Foundation, Rocky Mountain Natural Resource Center of the National Wildlife Federation, Western Water Assessment.
Exploring the legal and political dimensions that climate change will bring to the American West will be the focus of the CU-Boulder Natural Resources Law Center's 27th Annual Summer Conference.
Titled "Climate Change and the Future of the American West: Exploring the Legal and Policy Dimensions," the conference will be held June 7-9 at the Fleming Law Building on the University of Colorado at …
Homeland Security: Engaging The Frontlines - Symposium Proceedings, George H. Baker, Cheryl J. Elliott
Homeland Security: Engaging The Frontlines - Symposium Proceedings, George H. Baker, Cheryl J. Elliott
George H Baker
The rise of the American homeland security endeavor under the leadership of the new Department of Homeland Security has been heralded by several major national strategy documents. These documents have served to organize efforts at top levels within the government and industry. However, the national strategy guidance is not getting to many organizations and people at the grass-roots level who can make the most difference in preventing attacks, protecting systems, and recovering from catastrophic events, viz. the general citizenry, private infrastructure owners, and local governments. To better understand grass-roots issues and solutions, James Madison University, in cooperation with the Federal …
Effects Of Predator Removal On Upland Nesting Ducks In North Dakota Grassland Fragments, Kristen D. Chodachek, Michael J. Chamberlain
Effects Of Predator Removal On Upland Nesting Ducks In North Dakota Grassland Fragments, Kristen D. Chodachek, Michael J. Chamberlain
The Prairie Naturalist
Low nest success rates in the Prairie Pothole Region are attributed mainly to changes in the predator community coupled with reductions in availability of suitable nesting cover. We evaluated effects of removal of mammalian predators on pair density and nest success of ducks nesting on 259 ha sites in northeastern North Dakota during 2001 and 2002. We monitored pair density and duck nests on 10 sites with removal and 10 sites without removal. Overall nest success for both years was greater on trapped (53.4%) than nontrapped sites (28.7%). Pair densities were not affected by predator removal, but did increase across …
Urine-Marking And Ground-Scratching By Free-Ranging Arctic Wolves, Canis Lupus Arctos, In Summer, L. David Mech
Urine-Marking And Ground-Scratching By Free-Ranging Arctic Wolves, Canis Lupus Arctos, In Summer, L. David Mech
USGS Northern Prairie Wildlife Research Center
Urine-marking and ground-scratching were observed in an Arctic Wolf (Canis lupus) pack on Ellesmere Island, Nunavut, Canada, during 16 summers between 1986 and 2005. All previously known urination postures and ground-scratching by breeding males and females were seen, and incidence of marking and scratching was greatest when non-pack wolves were present. Observations of urine-marking of food remains supported the conclusion from a captive Wolf study that such marking signals lack of edible food.
Air Exchange Rate In A Horse Trailer During Road Transport, Joseph L. Purswell, Richard S. Gates, Laurie M. Lawrence, Jamey D. Jacob, Timothy S. Stombaugh, Robert J. Coleman
Air Exchange Rate In A Horse Trailer During Road Transport, Joseph L. Purswell, Richard S. Gates, Laurie M. Lawrence, Jamey D. Jacob, Timothy S. Stombaugh, Robert J. Coleman
Biosystems and Agricultural Engineering Faculty Publications
Horses traveling by road commonly experience heat stress conditions and poor air quality, which may be caused by insufficient ventilation; however, there are few estimates of air exchange in a horse trailer during transport. Air exchange rate was measured at ten locations within a four-horse trailer (internal volume 18.5 m3) using tracer gas decay measurement to assess the adequacy of ventilation. Three vehicle speeds (13, 48, and 97 km h-1) and three window configurations (all windows and roof vents closed, all windows open, all windows open and roof vents open forward) were tested with and without …