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Articles 91 - 120 of 554

Full-Text Articles in Environmental Policy

Natural Resource Condition Assessment, Tallgrass Prairie National Preserve, David S. Jones, Roy Cook, John Sovell, Christopher Herron, Jay Benner, Karin Decker, Andrew Beavers, Johannes Beebee, David Weinzimmer, Rob Schorr Nov 2019

Natural Resource Condition Assessment, Tallgrass Prairie National Preserve, David S. Jones, Roy Cook, John Sovell, Christopher Herron, Jay Benner, Karin Decker, Andrew Beavers, Johannes Beebee, David Weinzimmer, Rob Schorr

United States National Park Service: Publications

Executive Summary

The National Park Service (NPS) Natural Resource Condition Assessment (NRCA) Program administered by the NPS Water Resources Division evaluates current conditions for important natural resources and resource indicators using primarily existing information and data. NRCAs also report on trends in resource condition when possible, identify critical data gaps, and characterize a general level of confidence for study findings. This NRCA complements historic resource assessments, is multi-disciplinary in scope, employs a hierarchical indicator framework, identifies and develops reference conditions/values for comparison against current conditions, and emphasizes spatial evaluation of conditions and GIS products.

Created in 1996, Tallgrass Prairie National …


Relationships Between Soil Macroinvertebrates And Nonnative Feral Pigs (Sus Scrofa) In Hawaiian Tropical Montane Wet Forests, Nathaniel H. Wehr, Creighton M. Litton, Noa K. Lincoln, Steven C. Hess Oct 2019

Relationships Between Soil Macroinvertebrates And Nonnative Feral Pigs (Sus Scrofa) In Hawaiian Tropical Montane Wet Forests, Nathaniel H. Wehr, Creighton M. Litton, Noa K. Lincoln, Steven C. Hess

United States National Park Service: Publications

Abstract Nonnative feral pigs (Sus scrofa) are recognized throughout the New World as a highly significant introduced species in terms of ecosystem alteration. Similarly, nonnative soil macroinvertebrates (e.g. earthworms, ground beetles) invade and alter the structure and function of native habitats globally. However, the relationship between feral pigs and soil macroinvertebrates remains largely unknown. This study analyzed relationships between these taxa using nine sites located inside and outside of feral pig management units representing a * 25 year chronosequence of removal in tropical montane wet forests in Hawai‘i. Soil macroinvertebrates were sampled from plots categorized as: actively trampled by feral …


Juvenile Hawksbill Residency And Habitat Use Within A Caribbean Marine Protected Area, Thomas H. Selby, Kristen M. Hart, Brian J. Smith, Clayton G. Pollock, Zandy Hillis-Starr, Madan K. Oli Oct 2019

Juvenile Hawksbill Residency And Habitat Use Within A Caribbean Marine Protected Area, Thomas H. Selby, Kristen M. Hart, Brian J. Smith, Clayton G. Pollock, Zandy Hillis-Starr, Madan K. Oli

United States National Park Service: Publications

Understanding the spatial ecology of highly mobile marine vertebrates is necessary for informing conservation and management strategies aimed at protecting such species. Buck Island Reef National Monument (BIRNM), off the coast of St. Croix, US Virgin Islands, harbors critical foraging habitat for Critically Endangered juvenile hawksbills Eretmochelys imbricata that exhibit high site fidelity until sexual maturation. Using an array of fixed passive acoustic receivers that covered over 20.2 km2 at its largest configuration and in-water biannual sampling, we analyzed residency patterns and habitat use of 29 hawksbills. High recapture rates allowed for long- term data collection for some individuals, with …


Nonlinear Reaction–Diffusion Process Models Improve Inference For Population Dynamics, Xinyi Lu, Perry J. Williams, Mevin B. Hooten, James A. Powell, Jamie N. Womble, Michael R. Bower Sep 2019

Nonlinear Reaction–Diffusion Process Models Improve Inference For Population Dynamics, Xinyi Lu, Perry J. Williams, Mevin B. Hooten, James A. Powell, Jamie N. Womble, Michael R. Bower

United States National Park Service: Publications

Partial differential equations (PDEs) are a useful tool for modeling spatiotemporal dynamics of ecological processes. However, as an ecological process evolves, we need statistical models that can adapt to changing dynamics as new data are collected. We developed a model that combines an ecological diffusion equation and logistic growth to characterize colonization processes of a population that establishes long-term equilibrium over a heterogeneous environment. We also developed a homogenization strategy to statistically upscale the PDE for faster computation and adopted a hierarchical framework to accommodate multiple data sources collected at different spatial scales. We highlighted the advantages of using a …


Permafrost Hydrology Drives The Assimilation Of Old Carbon By Stream Food Webs In The Arctic, Jonathan A. O’Donnell, Michael P. Carey, Joshua C. Koch, Xiaomei Xu, Brett A. Poulin, Jennifer Walker, Christian E. Zimmerman Sep 2019

Permafrost Hydrology Drives The Assimilation Of Old Carbon By Stream Food Webs In The Arctic, Jonathan A. O’Donnell, Michael P. Carey, Joshua C. Koch, Xiaomei Xu, Brett A. Poulin, Jennifer Walker, Christian E. Zimmerman

United States National Park Service: Publications

Permafrost thaw in the Arctic is mobilizing old carbon (C) from soils to aquatic ecosystems and the atmosphere. Little is known, however, about the assimilation of old C by aquatic food webs in Arctic watersheds. Here, we used C isotopes (d13C, D14C) to quantify C assimilation by biota across 12 streams in arctic Alaska. Streams spanned watersheds with varying permafrost hydrology, from ice-poor bedrock to ice-rich loess (that is, yedoma). We measured isotopic content of (1) C sources including dissolved organic C (DOC), dissolved inorganic C (DIC), and soil C, and (2) stream biota, including benthic biofilm and macroinvertebrates, and …


Social Interactions Do Not Drive Territory Aggregation In A Grassland Songbird, S.K. Winnicki, S.M. Munguia, E.J. Williams, W.A. Boyle Aug 2019

Social Interactions Do Not Drive Territory Aggregation In A Grassland Songbird, S.K. Winnicki, S.M. Munguia, E.J. Williams, W.A. Boyle

United States National Park Service: Publications

Understanding the drivers of animal distributions is a fundamental goal of ecology and informs habitat management. The costs and benefits of colonial aggregations in animals are well established, but the factors leading to aggregation in territorial animals remain unclear. Territorial animals might aggregate to facilitate social behavior such as (1) group defense from predators and/or parasites, (2) cooperative care of offspring, (3) extra-pair mating, and/or (4) mitigating costs of extra-pair mating through kin selection. Using experimental and observational methods, we tested predictions of all four hypotheses in a tallgrass prairie in northeast Kansas, United States. Grasshopper Sparrow (Ammodramus savannarum) males …


Vegetation Monitoring At Homestead National Monument Of America, Nebraska, 1998–2017, Sherry A. Leis Aug 2019

Vegetation Monitoring At Homestead National Monument Of America, Nebraska, 1998–2017, Sherry A. Leis

United States National Park Service: Publications

Executive Summary

The Heartland Inventory and Monitoring Network has sampled permanent monitoring sites in three vegetation community types (restored prairie, successional forest, and bur oak forest) at Homestead National Monument of America since 1998 (includes nine sample years). Network scientists record each species, aerial cover estimates of ground flora, diameter at breast height of midstory and overstory trees, and tree regeneration frequency (tree seedlings and saplings) within these permanent sites.

The park has experienced similar periods of drought and wetness through the monitoring record. Ground cover estimates indicate that prairie litter and bare ground are negatively related; prescribed fire cycles …


Wpa News 109 (2019), World Pheasant Association Jul 2019

Wpa News 109 (2019), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Summer 2019), number 109

Published by the World Pheasant Association


Estimating Offsets For Avian Displacement Effects Of Anthropogenic Impacts, Jiill A. Shaffer, Charles R. Loesch, Deborah A. Buhl Jun 2019

Estimating Offsets For Avian Displacement Effects Of Anthropogenic Impacts, Jiill A. Shaffer, Charles R. Loesch, Deborah A. Buhl

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Biodiversity offsetting, or compensatory mitigation, is increasingly being used in temperate grassland ecosystems to compensate for unavoidable environmental damage from anthropogenic developments such as transportation infrastructure, urbanization, and energy development. Pursuit of energy independence in the United States will expand domestic energy production. Concurrent with this increased growth is increased disruption to wildlife habitats, including avian displacement from suitable breeding habitat. Recent studies at energy-extraction and energy-generation facilities have provided evidence for behavioral avoidance and thus reduced use of habitat by breeding waterfowl and grassland birds in the vicinity of energy infrastructure. To quantify and compensate for this loss in …


Enhancing Rural Economies Through Agroforestry, Gary Bentrup, Dean Current, Christopher Hartley, Marlen Eve, Tricia Kovacs, Kate Mcfarland, Eric Norland, David Smith, Susan Stein, Richard Straight Jun 2019

Enhancing Rural Economies Through Agroforestry, Gary Bentrup, Dean Current, Christopher Hartley, Marlen Eve, Tricia Kovacs, Kate Mcfarland, Eric Norland, David Smith, Susan Stein, Richard Straight

United States Department of Agriculture, Forest Service / University of Nebraska-Lincoln: Faculty Publications

Executive Summary

Accelerating the adoption of agroforestry will require a better understanding of the economic opportunities and financial benefits to society, says a recent assessment of United States agroforestry.1 Providing this understanding is critical for agroforestry to reach its full potential, whereby it enhances rural economies and provides ecological services that people need, such as clean drinking water. To assess emerging opportunities, the United States Department of Agriculture (USDA) convened more than 60 people in March 2018 to learn, network, and, above all, generate ideas for raising the economic profile and viability of agroforestry in the United States.

The effort …


Bird Monitoring At Homestead National Monument Of America, Nebraska, Status Report 2009–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke Jun 2019

Bird Monitoring At Homestead National Monument Of America, Nebraska, Status Report 2009–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke

United States National Park Service: Publications

Executive Summary

In 2009, the Heartland Inventory Monitoring Network initiated breeding bird surveys on Homestead National Monument of America, Nebraska, to address two objectives: (1) to monitor changes in bird community composition and abundance, and (2) to improve our understanding of relationships between breeding birds and habitat, and the effects of management actions on those relationships. This report evaluates trends in the park’s breeding bird populations in the context of trends observed within the North American Bird Conservation Initiative’s (NABCI) Central Mixed Grass Prairie Bird Conservation Region, the region in which the park is located. By doing so, we can …


Bird Monitoring At Herbert Hoover National Historic Site, Iowa, Status Report 2005–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke Jun 2019

Bird Monitoring At Herbert Hoover National Historic Site, Iowa, Status Report 2005–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke

United States National Park Service: Publications

Executive Summary

In 2005, the Heartland Inventory & Monitoring Network initiated breeding bird surveys on Herbert Hoover National Historic Site, Iowa, to address two objectives: (1) to monitor changes in bird community composition and abundance, and (2) to improve our understanding of relationships between breeding birds and habitat, and the effects of management actions on those relationships. This report evaluates trends in the park’s breeding bird populations in the context of trends observed within the North American Bird Conservation Initiative’s (NABCI) Eastern Tallgrass Prairie Bird Conservation Region , the region in which the park is located. By doing so, we …


Circumpolar Status Of Arctic Ptarmigan: Population Dynamics And Trends, Eva Fuglei, John-Andre ́ Henden, Chris T. Callahan, Olivier Gilg, Jannik Hansen, Rolf A. Ims, Arkady P. Isaev, Johannes Lang, Carol L. Mcintyre, Richard A. Merizon, Oleg Y. Mineev, Yuri N. Mineev, Dave Mossop, Olafur K. Nielsen, Erlend B. Nilsen, Ashild Ønvik Pedersen, Niels Martin Martin, Benoıt Sittler, Maria Hørnell Willebrand, Kathy Martin May 2019

Circumpolar Status Of Arctic Ptarmigan: Population Dynamics And Trends, Eva Fuglei, John-Andre ́ Henden, Chris T. Callahan, Olivier Gilg, Jannik Hansen, Rolf A. Ims, Arkady P. Isaev, Johannes Lang, Carol L. Mcintyre, Richard A. Merizon, Oleg Y. Mineev, Yuri N. Mineev, Dave Mossop, Olafur K. Nielsen, Erlend B. Nilsen, Ashild Ønvik Pedersen, Niels Martin Martin, Benoıt Sittler, Maria Hørnell Willebrand, Kathy Martin

United States National Park Service: Publications

Rock ptarmigan (Lagopus muta) and willow ptarmigan (L. lagopus) are Arctic birds with a circumpolar distribution but there is limited knowledge about their status and trends across their circumpolar distribution. Here, we compiled information from 90 ptarmigan study sites from 7 Arctic countries, where almost half of the sites are still monitored. Rock ptarmigan showed an overall negative trend on Iceland and Greenland, while Svalbard and Newfoundland had positive trends, and no significant trends in Alaska. For willow ptarmigan, there was a negative trend in mid-Sweden and eastern Russia, while northern Fennoscandia, North America and Newfoundland had no significant trends. …


The Interface Between Invasive Species And The Increased Incidence Of Tick-Borne Diseases, And The Implications For Federal Land Managers, Ed Clark, Janis Mcfarland, Blaine Parker, Slade Franklin May 2019

The Interface Between Invasive Species And The Increased Incidence Of Tick-Borne Diseases, And The Implications For Federal Land Managers, Ed Clark, Janis Mcfarland, Blaine Parker, Slade Franklin

National Invasive Species Council

Includes information on the dynamics of tick-borne disease, factors affecting the occurrence and density of ticks, matrices of ties between habitat, human activities, invasive plants, and ticks, federal resources and programs related to ticks and vector-borne disease in the United States, with references and an annotated bibliography of literature on ticks, vector-borne diseases, and invasive species.


The Niobrara National Scenic River: Exploring Co-Management Through A Case Study Of The Niobrara Council, Melissa M. Mosier May 2019

The Niobrara National Scenic River: Exploring Co-Management Through A Case Study Of The Niobrara Council, Melissa M. Mosier

School of Natural Resources: Dissertations, Theses, and Student Research

In recent decades, government staff and local citizens have increasingly employed cooperative schemes of natural resource management, in lieu of more conventional, top-down approaches of addressing user conflicts as they relate to water resources. The focus of this project was on the Niobrara Council, a partnership of local, state, and federal representatives charged with cooperatively managing the reach of the Niobrara River that was federally designated under the Wild and Scenic Rivers Act in 1991. The project's purpose was to explore the cooperative framework of the Council, using the methodology outlined by Carlsson and Berkes (2005). This methodology involved investigating …


Stream Channel Monitoring In Northern Great Plains Network, Data Quality Standards, Darren J. Thornbrugh May 2019

Stream Channel Monitoring In Northern Great Plains Network, Data Quality Standards, Darren J. Thornbrugh

United States National Park Service: Publications

Executive Summary

The purpose of this report is to document the standards used by the Northern Great Plain Network (NGPN) for activities related to the collection, processing, storage, analysis, and publication of monitoring data as described in the Protocol implementation plan for stream channel monitoring in the Northern Great Plains Network: narrative version 1.0 (Thornbrugh et al. 2019). The plan also serves as a guide for all NGPN personnel who are involved in protocol/program activities and as a resource for identifying memoranda, publications, and other literature that describe associated techniques and requirements in more detail.


Protocol Implementation Plan For Cave Water Quality Monitoring In The Northern Great Plains Network, Narrative Version 1.0, Isabel W. Ashton, Justin S. Mills, Marc Ohms, Daniel Austin, Michael Wiles, Kara Paintner-Green Apr 2019

Protocol Implementation Plan For Cave Water Quality Monitoring In The Northern Great Plains Network, Narrative Version 1.0, Isabel W. Ashton, Justin S. Mills, Marc Ohms, Daniel Austin, Michael Wiles, Kara Paintner-Green

United States National Park Service: Publications

Executive Summary

The Northern Great Plains Inventory and Monitoring Network includes thirteen park units located in five northern Great Plains states across six ecoregions. Two park units, Jewel Cave National Monument (JECA) and Wind Cave National Park (WICA), protect significant cave resources. These two caves are among the longest caves in the world and have an assortment of underground water resources ranging from drip sites to cave lakes. Subsurface water quantity and quality in the caves is a concern due to groundwater depletion and groundwater contamination from pesticides (aboveground applications), hydrocarbons (vehicle use and related activities), and wastewater effluent (sewage …


Wpa News 108 (2019), World Pheasant Association Apr 2019

Wpa News 108 (2019), World Pheasant Association

Galliformes Specialist Group and Affiliated Societies: Newsletters

WPA News (Spring 2019), number 108

Published by the World Pheasant Association


Redescription Of Anaschisma (Temnospondyli: Metoposauridae) From The Late Triassic Of Wyoming And The Phylogeny Of The Metoposauridae, Bryan M. Gee, William G. Parker, Adam D. Marsh Mar 2019

Redescription Of Anaschisma (Temnospondyli: Metoposauridae) From The Late Triassic Of Wyoming And The Phylogeny Of The Metoposauridae, Bryan M. Gee, William G. Parker, Adam D. Marsh

United States National Park Service: Publications

Metoposaurids are non-marine temnospondyls that are among the most common constituents of Late Triassic deposits, but despite their abundance, the evolutionary relationships of the group are poorly resolved and have not been fully addressed with modern phylogenetic methods. The genus Anaschisma is one of a number of poorly resolved metoposaurid taxa and was erected to describe two species from the Popo Agie Formation (Carnian) in Wyoming: Anaschisma browni and Anaschisma brachygnatha. Since being named, the genus has been repeatedly synonymized and separated with other taxa in the context of broader revisions of the Metoposauridae. At present, Anaschisma is considered …


Emerging Themes From The Esa Symposium Entitled “Pollinator Nutrition: Lessons From Bees At Individual To Landscape Levels”, Vanessa Corby-Harris, Julia H. Bowsher, Morgan Carr-Markell, Mark J. Carroll, Mary Centrella, Steven C. Cook, Margaret Couvillon, Gloria Degrandi-Hoffman, Adam Dolezal, Julia C. Jones, Christina L. Mogren, Clint R. V. Otto, Pierre Lau, Juliana Rangel, Roger Schürch, Ashley St. Clair Mar 2019

Emerging Themes From The Esa Symposium Entitled “Pollinator Nutrition: Lessons From Bees At Individual To Landscape Levels”, Vanessa Corby-Harris, Julia H. Bowsher, Morgan Carr-Markell, Mark J. Carroll, Mary Centrella, Steven C. Cook, Margaret Couvillon, Gloria Degrandi-Hoffman, Adam Dolezal, Julia C. Jones, Christina L. Mogren, Clint R. V. Otto, Pierre Lau, Juliana Rangel, Roger Schürch, Ashley St. Clair

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Pollinator populations are declining (Biesmeijer et al., 2006; Brodschneider et al., 2018; Cameron et al., 2011; Goulson, Lye, & Darvill, 2008; Kulhanek et al., 2017; National Research Council, 2007; Oldroyd, 2007), and both anecdotal and experimental evidence suggest that limited access to high quality forage might play a role (Carvell, Meek, Pywell, Goulson, & Nowakowski, 2007; Deepa et al., 2017; Goulson, Nicholls, Botias, & Rotheray, 2015; Potts et al., 2003, 2010; Vanbergen & The Insect Pollinators Initiative, 2013; Vaudo, Tooker, Grozinger, & Patch, 2015; Woodard, 2017). Multiple researchers are earnestly addressing this topic in a diverse array of insect-pollinator systems. …


Plant Community Composition And Structure Monitoring At Scotts Bluff National Monument, 2018 Data Report, Isabel W. Ashton Mar 2019

Plant Community Composition And Structure Monitoring At Scotts Bluff National Monument, 2018 Data Report, Isabel W. Ashton

United States National Park Service: Publications

Abstract

This report presents the results of vegetation monitoring efforts in 2018 at Scotts Bluff National Monument (SCBL) by the Northern Great Plains Inventory and Monitoring Network (NGPN) and Fire Ecology Program (NGPFire). This was the eighth year of combined monitoring efforts.

Crew members from NGPN visited eight long-term monitoring plots to collect data on the plant communities at SCBL. This work is part of a long-term monitoring effort designed to provide a better understanding of the condition of the vegetation community and how it changes over time. NGPN staff measured species richness, herb-layer height, native and non-native species abundance, …


Multivariate Analysis Of Hydrochemical Data For Jewel Cave, Wind Cave, And Surrounding Areas, Andrew J. Long, James B. Paces, William G. Eldridge Mar 2019

Multivariate Analysis Of Hydrochemical Data For Jewel Cave, Wind Cave, And Surrounding Areas, Andrew J. Long, James B. Paces, William G. Eldridge

United States National Park Service: Publications

Abstract

Jewel Cave National Monument and Wind Cave National Park in South Dakota contain two of the six longest caves worldwide. These caves contain subterranean lakes that are important points of intersection between the water table of the Madison aquifer and the caves. During 2015 to 2017, several subterranean lakes were discovered in Jewel Cave, which previously was thought to be above the regional water table. The objectives of this study were to better understand the hydrology of the recently discovered subterranean lakes in Jewel Cave and to evaluate their relation or possible connection to similar lakes in Wind Cave. …


Effects Of Land Use On Greenhouse Gas Flux In Playa Wetlands And Associated Watersheds In The High Plains, Usa, Dale W. Daniel, Loren M. Smith, Scott T. Mcmurry, Brian A. Tangen, Charles F. Dahl, Ned H. Euliss Jr., Ted Lagrange Feb 2019

Effects Of Land Use On Greenhouse Gas Flux In Playa Wetlands And Associated Watersheds In The High Plains, Usa, Dale W. Daniel, Loren M. Smith, Scott T. Mcmurry, Brian A. Tangen, Charles F. Dahl, Ned H. Euliss Jr., Ted Lagrange

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

In the High Plains, U.S., native prairie conversion to cropland agriculture has resulted in a loss of service delivery capabilities from most depressional wet-lands as a result of sedimentation. Restoring historic hydrological conditions to affected wetlands may rejuvenate some services, however, there may be tradeoffs due to emissions of CH4 and N2O. We evaluated the influence of two predominant conservation programs (Wetlands Reserve Program, WRP and Conservation Reserve Program, CRP) on gas emissions (CO2, CH4, N2O) from 42 playas and uplands in the High Plains of Nebraska. Because playa restoration through the WRP is most prevalent in the Rainwater Basin …


Bird Monitoring At Effigy Mounds National Monument, Iowa, Status Report 2009–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke Feb 2019

Bird Monitoring At Effigy Mounds National Monument, Iowa, Status Report 2009–2017, David G. Peitz, Lloyd W. Morrison, Kristen L. Mecke

United States National Park Service: Publications

Executive Summary

In 2009, the Heartland Inventory and Monitoring (I&M) Network) initiated breeding bird surveys on Effigy Mounds National Monument (NM), Iowa, to address two objectives: (1) to monitor changes in bird community composition and abundance, and (2) to improve our understanding of relationships between breeding birds and habitat and the effects of management actions on such relationships. This report evaluates trends in the park’s breeding bird populations in the context of trends observed within the North American Bird Conservation Initiative’s (NABCI) Prairie Hardwood Transition Bird Conservation Region, the bird conservation region in which the park is located. By doing …


Plant Community Composition And Structure Monitoring At Agate Fossil Beds National Monument, 2018 Data Report, Ryan M. Manuel Feb 2019

Plant Community Composition And Structure Monitoring At Agate Fossil Beds National Monument, 2018 Data Report, Ryan M. Manuel

United States National Park Service: Publications

Abstract

This report presents the results of vegetation monitoring efforts in 2018 at Agate Fossil Beds National Monument (AGFO) by the Northern Great Plains Inventory and Monitoring Network (NGPN) and the Northern Great Plains Fire Effects Program (NGPFire). This was the eighth year of field work conducted by NGPN at AGFO.

In 2018, crew members from NGPN visited six long-term plant community monitoring (PCM) plots, four legacy plant community monitoring (LPCM) plots, and NGPFire visited one additional PCM plot to collect data on plant communities at AGFO. This collaborative effort is part of a long-term monitoring program established to better …


Whooping Crane Use Of Riverine Stopover Sites, David M. Baasch, Patrick D. Farrell, Shay Howlin, Aaron T. Pearse, Jason M. Farnsworth, Chadwin B. Smith Jan 2019

Whooping Crane Use Of Riverine Stopover Sites, David M. Baasch, Patrick D. Farrell, Shay Howlin, Aaron T. Pearse, Jason M. Farnsworth, Chadwin B. Smith

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Migratory birds like endangered whooping cranes (Grus americana) require suitable nocturnal roost sites during twice annual migrations. Whooping cranes primarily roost in shallow surface water wetlands, ponds, and rivers. All these features have been greatly impacted by human activities, which present threats to the continued recovery of the species. A portion of one such river, the central Platte River, has been identified as critical habitat for the survival of the endangered whooping crane. Management intervention is now underway to rehabilitate habitat form and function on the central Platte River to increase use and thereby contribute to the survival of whooping …


Modeling Effects Of Crop Production, Energy Development And Conservation-Grassland Loss On Avian Habitat, Jiill A. Shaffer, Cali L. Roth, David M. Mushet Jan 2019

Modeling Effects Of Crop Production, Energy Development And Conservation-Grassland Loss On Avian Habitat, Jiill A. Shaffer, Cali L. Roth, David M. Mushet

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Birds are essential components of most ecosystems and provide many services valued by society. However, many populations have undergone striking declines as their habitats have been lost or degraded by human activities. Terrestrial grasslands are vital habitat for birds in the North American Prairie Pothole Region (PPR), but grassland conversion and fragmentation from agriculture and energy-production activities have destroyed or degraded millions of hectares. Conservation grasslands can provide alternate habitat. In the United States, the Conservation Reserve Program (CRP) is the largest program maintaining conservation grasslands on agricultural lands, but conservation grasslands in the PPR have declined by over 1 …


7th International Symposium On Galliformes (September 22–24, 2019: Quang Binh, Vietnam): Abstracts, World Pheasant Association, Việt Nature Conservation Centre Jan 2019

7th International Symposium On Galliformes (September 22–24, 2019: Quang Binh, Vietnam): Abstracts, World Pheasant Association, Việt Nature Conservation Centre

Galliformes Specialist Group and Affiliated Societies: Conference Proceedings

Abstracts

How much recent research help with plans to reintroduce Vietnam pheasant Lophura edwardsi to the world? Nigel Collar

Status and range decline of Germain’s peacock pheasant, Vy Nguyen Tran, Dusit Ngoprasert, Stephen Browne, and Tommaso Savini

Landscape-scale camera-trapping surveys fill the information gap about the distribution of galliforms in the Annamites, An Nguyen, Andrew Tilker, Jesse F. Abrams, Thanh V. Nguyen, Nguyen Quang Hoa Anh, Benjamin Rawson, Francois Guegan, Camille N. Z. Coudrat, Cao Tien Trung, Minh Le, Daniel Wilcox, and Andreas Wilting

Increasing the breeding success of two vulnerable peacock-pheasant species through antiparasitic interventions and hand-rearing Grace Tang …


Diurnal Habitat Selection Of Migrating Whooping Crane In The Great Plains, David M. Baasch, Patrick D. Farrell, Aaron T. Pearse, David A. Brandt, Andrew J. Caven, Mary J. Harner, Greg D. Wright, Kristine L. Metzger Jan 2019

Diurnal Habitat Selection Of Migrating Whooping Crane In The Great Plains, David M. Baasch, Patrick D. Farrell, Aaron T. Pearse, David A. Brandt, Andrew J. Caven, Mary J. Harner, Greg D. Wright, Kristine L. Metzger

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Available stopover habitats with quality foraging opportunities are essential for migrating waterbirds, including Whooping Crane (Grus americana). Several studies have evaluated habitats used by Whooping Crane for roosting throughout its migration corridor; however, habitats associated with foraging and other diurnal activities have received less attention. We used data collected from 42 Whooping Crane individuals that included 2169 diurnal use locations within 395 stopover sites evaluated during spring 2013 to fall 2015 to assess diurnal habitat selection throughout the U.S. portion of the migration corridor. We found that Whooping Crane selected wetland land-cover types (i.e., open water, riverine, and semipermanent wetlands) …


Revisiting The Historic Distribution And Habitats Of The Whooping Crane, Jane E. Austin, Matthew A. Hayes, Jeb A. Barzen Jan 2019

Revisiting The Historic Distribution And Habitats Of The Whooping Crane, Jane E. Austin, Matthew A. Hayes, Jeb A. Barzen

United States Geological Survey, Northern Prairie Wildlife Research Center: Publications

Understanding the historic range and habitats of an endangered species can assist in conservation and reintroduction efforts for that species. Individuals reintroduced into a species’ historic core range have a higher survival rate compared to individuals introduced near the periphery or outside the historic range (Falk and Olwell, 1992; Griffith et al., 1989). Individuals on the periphery of a species’ range tend to occupy less favorable habitats and have lower and more variable densities than those near the core of their range (Brown, 1984; Brown et al., 1995, 1996). Such conclusions, however, presume that historic habitats have not changed since …