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Articles 181 - 210 of 554
Full-Text Articles in Environmental Policy
Secretarial Order 3336 Science Priorities: The Role Of Science Past, Present, And Future, Stephen W. Barrett
Secretarial Order 3336 Science Priorities: The Role Of Science Past, Present, And Future, Stephen W. Barrett
Joint Fire Science Program Digests
Within sagebrush (Artemisia spp.) ecosystems, which are home to more than 350 species of plants and animals, potentially more frequent and severe fires are causing an increased threat to human safety, property, rural economies, and wildlife habitat. In particular, the habitat of the greater sage-grouse (Centrocercus urophasianus), an iconic sagebrush-dependent species, is at risk. In response to this reality, on January 15, 2015, Secretary Sally Jewell signed Secretarial Order 3336 (S.O. 3336), titled “Rangeland Fire Prevention, Management, and Restoration.” The main purpose of the order is to implement enhanced policies and strategies for managing rangeland fire and …
Using An Equilibrium Displacement Model To Simulate The Impact Of An Environmental Meat Tax On Grain And Livestock Markets, Regan Gilmore
Using An Equilibrium Displacement Model To Simulate The Impact Of An Environmental Meat Tax On Grain And Livestock Markets, Regan Gilmore
UCARE: Research Products
Research Question
What are the potential effects of imposing a hypothetical environmental tax on meat consumption, including beef, pork, and poultry, on the livestock and grain markets in the United States from farm to fork?
Faculty advisor: Azzeddine Azzam
This was the first half of my research project; the second half (with the results) is shown on the following poster: "Simulating the Impact of a CO2-equivalent Meat Tax on Grain and Livestock Markets" @ https://digitalcommons.unl.edu/ucareresearch/151/
Wpa News 100 (2016), World Pheasant Association
Wpa News 100 (2016), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Summer 2016), number 100
Published by the World Pheasant Association
Wpa News 99 (2016), World Pheasant Association
Wpa News 99 (2016), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Spring 2016), number 99
Published by the World Pheasant Association
Plant Community Composition And Structure Monitoring For Agate Fossil Beds National Monument, 2011-2015 Summary Report, Isabel W. Ashton, Christopher J. Davis
Plant Community Composition And Structure Monitoring For Agate Fossil Beds National Monument, 2011-2015 Summary Report, Isabel W. Ashton, Christopher J. Davis
United States National Park Service: Publications
Executive Summary
The Northern Great Plains Inventory & Monitoring Program and Fire Effects Program have been monitoring vegetation in Agate Fossil Beds National Monument for over 18 years. While methods have changed slightly, this report summarizes data from over 80 locations from 1998-2015. We use these data to explore status and trends in upland and riparian plant communities, the occurrence of rare plants, and the effects of the Fossil Hills trail installation on the surrounding vegetation. A summary of the current condition (2011-2015) and trends (based on 1998-2015) in plant communities at Agate Fossil Beds NM (AGFO) is found in …
Plant Community Composition And Structure Monitoring For Scotts Bluff National Monument, 2011-2015 Summary Report, Isabel W. Ashton, Christopher J. Davis
Plant Community Composition And Structure Monitoring For Scotts Bluff National Monument, 2011-2015 Summary Report, Isabel W. Ashton, Christopher J. Davis
United States National Park Service: Publications
Executive Summary
The Northern Great Plains Inventory & Monitoring Program and Fire Effects Program have been monitoring vegetation in Scotts Bluff National Monument for over 18 years. While methods have changed slightly, this report summarizes data from over 80 locations from 1998-2015. Below, we list the questions we asked using these data and provide a summarized answer. For more details see the full report. A summary of the current condition (2011-2015) and trends (based on 1988-2015) in plant communities at Scotts Bluff is found in Table ES-1.
1. What is the current status of plant community composition and structure of …
Air Quality Related Values (Aqrvs) For Northern Great Plains Network (Ngpn) Parks, Effects From Ozone; Visibility Reducing Particles; And Atmospheric Deposition Of Acids, Nutrients And Toxics, Timothy J. Sullivan
United States National Park Service: Publications
Summary
This report describes the Air Quality Related Values (AQRVs) of the Northern Great Plains Network (NGPN). AQRVs are those resources sensitive to air quality and include streams, lakes, soils, vegetation, fish and wildlife, and visibility. This report also describes air pollutant emissions and air quality in NGPN, and their effects on AQRVs. The primary pollutants likely to affect AQRVs include nitrogen (N) and sulfur (S) compounds (nitrate [NO3-], ammonium [NH4+], and sulfate [SO42-]); ground-level ozone (O3); haze-causing particles; and airborne toxics.
The 13 parks that are included in …
2016 International Symposium On Galliformes (Beijing, China: October 21-23, 2016): Programme And Abstracts, World Pheasant Association, China Ornithological Society
2016 International Symposium On Galliformes (Beijing, China: October 21-23, 2016): Programme And Abstracts, World Pheasant Association, China Ornithological Society
Galliformes Specialist Group and Affiliated Societies: Conference Proceedings
Evolutionary relationships among galliforms using 1000’s of unlinked loci, Rebecca Kimball
Ecology, behaviour and conservation problems in Siberian grouse Falcipennis falcipennis (Hartlaub 1855), Siegfried Klaus
Taxonomy, genetics and evolution in a highly subspecies-rich pheasant Phasianus colchicus, Yang Liu
Survey of the Blyth’s tragopan Tragopan blythii in western Myanmar, Nan Wang
Activity rhythm of green peafowl (Pavo muticus) in Konglonghe Nature Reserve based on camera-trap data, Pengfei Shan
Studies on unusual incubation behavior and embryonic tolerance of hypothermia by the Sichuan partridge (Arborophila rufipectus), Yiqiang Fu
The breeding behavior and nest selection of Sclater’s monal ( …
Patuxent’S Long-Term Research On Wolves, L. David Mech
Patuxent’S Long-Term Research On Wolves, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
The gray wolf (Canis lupus) was one of the first species placed on the Endangered Species List in 1967. The Endangered Species Act of 1973 legally protected the wolf along with other listed species.
Patuxent Wildlife Research Center (Patuxent) in Laurel, MD, began its Endangered Wildlife Program in 1966, and U.S. Fish and Wildlife Service (USFWS) biologist Ray Erickson was assigned to lead it. In 1973, I was transferred to the program from Region 3 of the USFWS, having been employed there since 1969 to study wolves in Minnesota.
Endangered Species Act protection of the wolf fostered its quick …
How To Sex And Age Grey Partridges (Perdix Perdix): Identification Guide For Bird Ringers And Field Observations, Francis Buner
How To Sex And Age Grey Partridges (Perdix Perdix): Identification Guide For Bird Ringers And Field Observations, Francis Buner
Galliformes Specialist Group and Affiliated Societies: Reports and Other Materials
Key steps
To reliably sex and age grey partridges the following five features should be examined together:
- Head feathering
- Pattern in wing coverts
- Shape of primary tips
- Leg colour
- Bill colour
Agroforestry Horizons: Experiences And Reflections: Report-Out, Steve Rasmussen
Agroforestry Horizons: Experiences And Reflections: Report-Out, Steve Rasmussen
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
The USDA National Agroforestry Center (NAC) is charting a course for the next five years. As part of this process, NAC and the USDA Interagency Agroforestry Team hosted a meeting of leaders in the fields of agroforestry, agriculture, and forestry, from government, universities, and the private sector, to share experiences and insights on agroforestry opportunities and challenges. The meeting occurred on April 27th and 28th, 2016, in Washington, DC, and entailed presentations and discussions on current and potential roles of agroforestry in supporting water quality, soil health, economic diversification, food security, and pollinator/wildlife habitat. This report-out provides a summary of …
Differential Wolf-Pack-Size Persistence And The Role Of Risk When Hunting Dangerous Prey, Shannon M. Barber-Meyer, L. David Mech, Wesley E. Newton, Bridget L. Borg
Differential Wolf-Pack-Size Persistence And The Role Of Risk When Hunting Dangerous Prey, Shannon M. Barber-Meyer, L. David Mech, Wesley E. Newton, Bridget L. Borg
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Risk to predators hunting dangerous prey is an emerging area of research and could account for possible persistent differences in gray wolf (Canis lupus) pack sizes. We documented significant differences in long-term wolf-pack-size averages and variation in the Superior National Forest (SNF), Denali National Park and Preserve, Yellowstone National Park, and Yukon, Canada (p < 0.01). The SNF differences could be related to the wolves’ risk when hunting primary prey, for those packs (N = 3) hunting moose (Alces americanus) were significantly larger than those (N = 10) hunting white-tailed deer (Odocoileus virginianus) (F1,8 = 16.50, p = 0.004). Our data support the hypothesis that differential pack-size persistence may be …
Grouse News 51-60 (2016-2020), Iucn/Ssc Galliformes Specialist Group
Grouse News 51-60 (2016-2020), Iucn/Ssc Galliformes Specialist Group
Galliformes Specialist Group and Affiliated Societies: Newsletters
Issue 51 (May 2016)
From the Editor
From the Chair of the Grouse Group and from the Galliformes Specialist Group
Research Reports
Our view: Greater sage-grouse habitat restoration: Sound science or wishful thinking?
Grouse News
Developing an Index to Sooty Grouse Abundance in Western Oregon, USA
Dusky and sharp-tailed grouse project starting near Clinton, BC addressing the effects of biosolids on grouse behavior and diet
Grouse research in North America: revisiting the forgotten forest grouse
New national survey of capercaillie in Scotland
Conferences 6th International Symposium on Galliformes 2016
The 16th NKV Congress
The 33rd IUGB and 14th Perdix Congress, …
Wpa News 101 (2016), World Pheasant Association
Wpa News 101 (2016), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Winter 2016), number 101
Published by the World Pheasant Association
Late Holocene Expansion Of Ponderosa Pine (Pinus Ponderosa) In The Central Rocky Mountains, Usa, Jodi R. Norris, Julio L. Betancourt, Stephen T. Jackson
Late Holocene Expansion Of Ponderosa Pine (Pinus Ponderosa) In The Central Rocky Mountains, Usa, Jodi R. Norris, Julio L. Betancourt, Stephen T. Jackson
United States National Park Service: Publications
Aim: Ponderosa pine (Pinus ponderosa) experienced one of the most extensive and rapid post-glacial plant migrations in western North America. We used plant macrofossils from woodrat (Neotoma) middens to reconstruct its spread in the Central Rocky Mountains, identify other vegetation changes coinciding with P. ponderosa expansion at the same sites, and relate P. ponderosa migrational history to both its modern phylogeography and to a parallel expansion by Utah juniper (Juniperus osteosperma).
Location: Central Rocky Mountains, Wyoming and Montana, and Black Hills, Wyoming and South Dakota, USA.
Methods: Plant macrofossils were analysed in …
Outsourcing Environmental Problems And Poverty In Less Developed Countries, Josiah Ward
Outsourcing Environmental Problems And Poverty In Less Developed Countries, Josiah Ward
Nebraska College Preparatory Academy: Senior Capstone Projects
Copyright © 2016 Josiah Ward
Diseases Of Trees In The Great Plains, Aaron D. Bergdahl, Alison Hill, Gerard C. Adams, Rachel A. Allison, John A. Appel, John Ball, James T. Blodgett, Kelly S. Burns, Whitney Cranshaw, Kelsey L. Dunnell, Mark L. Gleason, Mark O. Harrell, Thomas C. Harrington, Marcus B. Jackson, William R. Jacobi, Jennifer Juzwik, Megan M. Kennwlly, Les Koch, Jared M. Leboldus, Phillip A. Mason, Douglas L. Mcnew, Judith O'Mara, Hayley M. Nelson, Nicole Opbroek, Michael E. Ostry, Scott C. Redlin, Glen R. Stanosz, Laurie J. Stepanek, Ned Tisserat, Timothy C. Todd, James A. Walla, James J. Worrall, Simeon Wright
Diseases Of Trees In The Great Plains, Aaron D. Bergdahl, Alison Hill, Gerard C. Adams, Rachel A. Allison, John A. Appel, John Ball, James T. Blodgett, Kelly S. Burns, Whitney Cranshaw, Kelsey L. Dunnell, Mark L. Gleason, Mark O. Harrell, Thomas C. Harrington, Marcus B. Jackson, William R. Jacobi, Jennifer Juzwik, Megan M. Kennwlly, Les Koch, Jared M. Leboldus, Phillip A. Mason, Douglas L. Mcnew, Judith O'Mara, Hayley M. Nelson, Nicole Opbroek, Michael E. Ostry, Scott C. Redlin, Glen R. Stanosz, Laurie J. Stepanek, Ned Tisserat, Timothy C. Todd, James A. Walla, James J. Worrall, Simeon Wright
United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications
Hosts, distribution, symptoms and signs, disease cycle, and management strategies are described for 84 hardwood and 32 conifer diseases in 56 chapters. Color illustrations are provided to aid in accurate diagnosis. A glossary of technical terms and indexes to hosts and pathogens also are included.
Scope
The purpose of this handbook is to assist users in diagnosing tree diseases and reducing their impact. Included are the most damaging diseases, along with some that are the subject of frequent inquiry although of minor importance. The diseases included were those encountered primarily on trees in conservation plantings such as windbreaks, farmstead plantings, …
Territoriality And Inter-Pack Aggression In Gray Wolves: Shaping A Social Carnivore's Life History Rudyard Kipling's Law Of The Jungle Meets Yellowstone's Law Of The Mountains, Kira A. Cassidy, Douglas W. Smith, L. David Mech, Daniel R. Macnulty, Daniel R. Stahler, Matthew C. Metz
Territoriality And Inter-Pack Aggression In Gray Wolves: Shaping A Social Carnivore's Life History Rudyard Kipling's Law Of The Jungle Meets Yellowstone's Law Of The Mountains, Kira A. Cassidy, Douglas W. Smith, L. David Mech, Daniel R. Macnulty, Daniel R. Stahler, Matthew C. Metz
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
When Rudyard Kipling wrote The Jungle Book in 1894 and included the famous line "For the strength of the Wolf is the Pack, and the strength of the Pack is the Wolf," he would have had no idea that over a century later, scientific research would back up his poetic phrase. Recent studies in Yellowstone have found that both the individual wolf and the collective pack rely on each other and play important roles in territoriality. At a time when most fairy tales and fables were portraying wolves as demonic killers or, at best, slapstick gluttons, Kipling seemed to have …
Wolf (Canis Lupus) Generation Time And Proportion Of Current Breeding Females By Age, L. David Mech, Shannon M. Barber-Meyer, John Erb
Wolf (Canis Lupus) Generation Time And Proportion Of Current Breeding Females By Age, L. David Mech, Shannon M. Barber-Meyer, John Erb
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Information is sparse about aspects of female wolf (Canis lupus) breeding in the wild, including age of first reproduction, mean age of primiparity, generation time, and proportion of each age that breeds in any given year. We studied these subjects in 86 wolves (113 captures) in the Superior National Forest (SNF), Minnesota (MN), during 1972–2013 where wolves were legally protected for most of the period, and in 159 harvested wolves from throughout MN wolf range during 2012–2014. Breeding status of SNF wolves were assessed via nipple measurements, and wolves from throughout MN wolf range, by placental scars. In …
Prescribed Fire Monitoring Report, Tallgrass Prairie National Preserve 2014 (Iqcs Fire Number 285382, 285383, 266782, 285677), Sherry A. Leis, Sarah E. Hinman
Prescribed Fire Monitoring Report, Tallgrass Prairie National Preserve 2014 (Iqcs Fire Number 285382, 285383, 266782, 285677), Sherry A. Leis, Sarah E. Hinman
United States National Park Service: Publications
Introduction
In 2014, the preserve’s federal and NGO partners conducted prescribed fires during March, April, and October that encompassed 8129.8 acres of Tallgrass Prairie National Preserve (TAPR). This was a unique burn year in that prescribed burns occurred in the spring, the traditional burn season, and the fall. Fall burns were conducted to support needed archaeological surveys as part of the environmental compliance for a symphony event scheduled for June 2015 at the preserve. Burns at TAPR were coordinated with local US Fish and Wildlife Service (USFWS), The Nature Conservancy (TNC), and various units of the National Park Service.
Burns …
Wpa News 97 (2015), World Pheasant Association
Wpa News 97 (2015), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Summer 2015), number 97
Published by the World Pheasant Association
Wpa News 96 (2015), World Pheasant Association
Wpa News 96 (2015), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Spring 2015), number 96
Published by the World Pheasant Association
Plant Community Composition And Structure Monitoring For Agate Fossil Beds National Monument, 2014 Annual Report, Michael Prowatzke, Stephen K. Wilson
Plant Community Composition And Structure Monitoring For Agate Fossil Beds National Monument, 2014 Annual Report, Michael Prowatzke, Stephen K. Wilson
United States National Park Service: Publications
Abstract
This report presents the results of vegetation monitoring efforts in 2014 at Agate Fossil Beds National Monument (AGFO) by the Northern Great Plains Inventory and Monitoring Network (NGPN).
During the fourth full year of field work, crew members from NGPN visited six plant community monitoring plots to collect data on the vegetation at AGFO. This is part of a long-term monitoring effort that will sample six of 15 randomly located upland plots every year, so that each plot is visited for two consecutive years and then rested for three years, on a five-year rotating basis. NGPN staff captured data …
Plant Community Composition And Structure Monitoring For Scotts Bluff National Monument, 2014 Annual Report, Michael Prowatzke, Stephen K. Wilson
Plant Community Composition And Structure Monitoring For Scotts Bluff National Monument, 2014 Annual Report, Michael Prowatzke, Stephen K. Wilson
United States National Park Service: Publications
Abstract
This report presents the results of vegetation monitoring efforts in 2014 at Scotts Bluff National Monument (SCBL) by the Northern Great Plains Inventory and Monitoring Network (NGPN).
During the fourth full year of field work, crew members from NGPN visited eight plant community monitoring plots to collect data on the vegetation at SCBL. This is part of a long-term monitoring effort that will sample eight of 20 randomly located upland plots every year, so that each plot is visited for two consecutive years and then rested for three years, on a five-year rotating basis. Additionally, NGPN staff also visited …
White-Tailed Deer (Odocoileus Virginianus) Fawn Risk From Gray Wolf (Canis Lupus) Predation During Summer, L. David Mech, Aaron Morris, Shannon M. Barber-Meyer
White-Tailed Deer (Odocoileus Virginianus) Fawn Risk From Gray Wolf (Canis Lupus) Predation During Summer, L. David Mech, Aaron Morris, Shannon M. Barber-Meyer
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Little is known about how often various prey animals are at risk of predation by Gray Wolves (Canis lupus). We used a system to monitor the presence during the day of two radio-collared Gray Wolves within 2 km of a radio-collared White-tailed Deer (Odocoileus virginianus) with a fawn or fawns in August 2013 in the Superior National Forest of northeastern Minnesota. We concluded that the fawn or fawns were at risk of predation by at least one wolf at least daily.
Yellowstone Wolf (Canis Lupus) Density Predicted By Elk (Cervus Elaphus) Biomass, L. David Mech, Shannon M. Barber-Meyer
Yellowstone Wolf (Canis Lupus) Density Predicted By Elk (Cervus Elaphus) Biomass, L. David Mech, Shannon M. Barber-Meyer
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
The Northern Range (NR) of Yellowstone National Park (YNP) hosts a higher prey biomass density in the form of elk (Cervus elaphus L., 1758) than any other system of gray wolves (Canis lupus L., 1758) and prey reported. Therefore, it is important to determine whether that wolf–prey system fits a long-standing model relating wolf density to prey biomass. Using data from 2005 to 2012 after elk population fluctuations dampened 10 years subsequent to wolf reintroduction, we found that NR prey biomass predicted wolf density. This finding and the trajectory of the regression extend the validity of the model …
Piecemeal Reform Of Trade And Environmental Policy When Consumption Also Pollutes, Mark R. Metcalfe, John C. Beghin
Piecemeal Reform Of Trade And Environmental Policy When Consumption Also Pollutes, Mark R. Metcalfe, John C. Beghin
Department of Agricultural Economics: Faculty Publications
We incorporate endogenous (price-responsive) consumption pollution into a dual trade model to assess welfare effects of coordinated trade and environmental piecemeal reform in a small, open and distorted economy. Pollution is generated by production and consumption. Producers control the level of pollution and face incentives to abate both types of pollution. We identify sufficient conditions for welfare-improving reforms of trade and environmental policies. An additional domestic environmental policy instrument must be imposed on exportables because of their supply response to foreign environmental taxes.
Wpa News 98 (2015), World Pheasant Association
Wpa News 98 (2015), World Pheasant Association
Galliformes Specialist Group and Affiliated Societies: Newsletters
WPA News (Winter 2015), number 98
Published by the World Pheasant Association
Evaluation Of A Formula That Categorizes Female Gray Wolf Breeding Status By Nipple Size, Shannon M. Barber-Meyer, L. David Mech
Evaluation Of A Formula That Categorizes Female Gray Wolf Breeding Status By Nipple Size, Shannon M. Barber-Meyer, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
The proportion by age class of wild Canis lupus (Gray Wolf) females that reproduce in any given year remains unclear; thus, we evaluated the applicability to our long-term (1972–2013) data set of the Mech et al. (1993) formula that categorizes female Gray Wolf breeding status by nipple size and time of year. We used the formula to classify Gray Wolves from 68 capture events into 4 categories (yearling, adult non-breeder, former breeder, current breeder). To address issues with small sample size and variance, we created an ambiguity index to allow some Gray Wolves to be classed into 2 categories. We …
Gray Wolf (Canis Lupus) Dyad Monthly Association Rates By Demographic Group, Shannon M. Barber-Meyer, L. David Mech
Gray Wolf (Canis Lupus) Dyad Monthly Association Rates By Demographic Group, Shannon M. Barber-Meyer, L. David Mech
United States Geological Survey, Northern Prairie Wildlife Research Center: Publications
Preliminary data from GPS-collared wolves (Canis lupus) in the Superior National Forest of northeastern Minnesota indicated wolves had low association rates with packmates during summer. However, aerial-telemetry locations of very high frequency (VHF)-radioed wolves in this same area showed high associations among packmates during winter. We analyzed aerial-telemetry-location data from VHF-collared wolves in several packs (n=18 dyads) in this same area from 1994-2012 by month, and found lowest association rates occurred during June. While other studies have found low association among wolf packmates during summer, information on differences in association patterns depending on the wolf associates’ demographics is …