Jill Shaffer (Former Employee)
Science and Products
Filter Total Items: 103
The effects of management practices on grassland birds—Wilson’s Phalarope (Phalaropus tricolor) The effects of management practices on grassland birds—Wilson’s Phalarope (Phalaropus tricolor)
The key to Wilson’s Phalarope (Phalaropus tricolor) management is providing wetland complexes containing suitable wetland characteristics (that is, open water, emergent vegetation, and open shoreline) and upland habitat (native grassland or tame hayland) throughout the breeding season. Wilson’s Phalaropes have been reported to use habitats with 15–32 centimeters (cm) average vegetation...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Christopher M. Goldade, Amy L. Zimmerman, Betty R. Euliss
The effects of management practices on grassland birds—Marbled Godwit (Limosa fedoa) The effects of management practices on grassland birds—Marbled Godwit (Limosa fedoa)
Keys to Marbled Godwit (Limosa fedoa) management include providing large expanses of short, sparsely to moderately vegetated landscapes that include native grasslands and wetland complexes. Optimal wetland complexes should contain a diversity of wetland classes and sizes, such as ephemeral, temporary, seasonal, semipermanent, permanent, and alkali wetlands, as well as intermittent...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Melvin P. Nenneman, Betty R. Euliss
The effects of management practices on grassland birds—Long-billed Curlew (Numenius americanus) The effects of management practices on grassland birds—Long-billed Curlew (Numenius americanus)
Keys to Long-billed Curlew (Numenius americanus) management include providing large, open, level to gently rolling grasslands with short vegetation, and tailoring grazing regimes to local conditions. Long-billed Curlews have been reported to use habitats with 3–75 centimeters (cm) average vegetation height, less than or equal to 27 cm visual obstruction reading, 20–71 percent grass cover...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Paul A. Rabie, Betty R. Euliss
The effects of management practices on grassland birds—Mountain Plover (Charadrius montanus) The effects of management practices on grassland birds—Mountain Plover (Charadrius montanus)
The key to Mountain Plover (Charadrius montanus) management is maintaining sparsely vegetated grasslands. Grasslands can be made suitable for breeding Mountain Plovers by preserving large prairie dog (Cynomys species) towns, conducting prescribed burns, or implementing heavy grazing in some situations. Mountain Plovers have been reported to use habitats with 2–38 centimeters average...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Melvin P. Nenneman, Travis L. Wooten, Betty R. Euliss
The effects of management practices on grassland birds — An introduction to North American grasslands and the practices used to manage grasslands and grassland birds The effects of management practices on grassland birds — An introduction to North American grasslands and the practices used to manage grasslands and grassland birds
The Great Plains of North America is defined as the land mass that encompasses the entire central portion of the North American continent that, at the time of European settlement, was an unbroken expanse of primarily herbaceous vegetation. The Great Plains extend from central Saskatchewan and Alberta to central Mexico and from Indiana to the Rocky Mountains. The expanses of herbaceous...
Authors
Jill A. Shaffer, John P. DeLong
The effects of management practices on grassland birds—Rates of Brown-headed Cowbird (Molothrus ater) parasitism in nests of North American grassland birds The effects of management practices on grassland birds—Rates of Brown-headed Cowbird (Molothrus ater) parasitism in nests of North American grassland birds
The Brown-headed Cowbird (Molothrus ater) is an obligate brood parasite that relies entirely on host species to incubate its eggs and rear its young. The Brown-headed Cowbird is a host generalist; eggs of the cowbird have been found in nests of more than 220 species of North American birds. Although cowbirds are not considered a serious threat to their primary avian hosts, cowbird brood...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson
The effects of management practices on grassland birds The effects of management practices on grassland birds
Since the mid-1960s, populations of grassland birds have been declining more precipitously than any other group of birds in North America. These long-term declines highlight the need to better understand the habitat requirements of grassland birds and how management practices affect individual species and their habitats. Although resource managers have long recognized that every...
Estimating offsets for avian displacement effects of anthropogenic impacts Estimating offsets for avian displacement effects of anthropogenic impacts
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...
Authors
Jill A. Shaffer, Charles R. Loesch, Deborah A. Buhl
Estimating indirect impacts of wind-energy development for breeding grassland birds and waterfowl in the northern Great Plains Estimating indirect impacts of wind-energy development for breeding grassland birds and waterfowl in the northern Great Plains
No abstract available.
Authors
Jill A. Shaffer, Charles R. Loesch, Deborah A. Buhl
Modeling effects of crop production, energy development and conservation-grassland loss on avian habitat Modeling effects of crop production, energy development and conservation-grassland loss on avian habitat
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...
Authors
Jill A. Shaffer, Cali L. Roth, David M. Mushet
The effects of management practices on grassland birds—Horned Lark (Eremophila alpestris) The effects of management practices on grassland birds—Horned Lark (Eremophila alpestris)
The key to Horned Lark (Eremophila alpestris) management is maintaining areas with short, sparse vegetation by burning, mowing, or grazing. Horned Larks have been reported to use habitats with less than or equal to (≤) 70 centimeters (cm) average vegetation height, 3–26 cm visual obstruction reading, 15–67 percent grass cover, 3–70 percent forb cover, ≤21 percent shrub cover, 1–44...
Authors
Meghan F. Dinkins, Lawrence D. Igl, Jill A. Shaffer, Douglas H. Johnson, Amy L. Zimmerman, Barry D. Parkin, Christopher M. Goldade, Betty R. Euliss
Model parameters for representative wetland plant functional groups Model parameters for representative wetland plant functional groups
Wetlands provide a wide variety of ecosystem services including water quality remediation, biodiversity refugia, groundwater recharge, and floodwater storage. Realistic estimation of ecosystem service benefits associated with wetlands requires reasonable simulation of the hydrology of each site and realistic simulation of the upland and wetland plant growth cycles. Objectives of this...
Authors
Amber S. Williams, James R. Kiniry, David M. Mushet, Loren M. Smith, Scott T. McMurry, Kelly Attebury, Megan Lang, Gregory W. McCarty, Jill A. Shaffer, William R. Effland, Mari-Vaughn V. Johnson
Non-USGS Publications**
Dechant, J. A. 2001. Range expansion of Pileated Woodpecker in North Dakota. Prairie Naturalist 33:163-182.
https://pubs.er.usgs.gov/publication/1001692
https://pubs.er.usgs.gov/publication/1001692
Winter, M., S. E. Hawks, J. A. Shaffer, and D. H. Johnson. 2003. Guidelines for finding nests of passerine birds in tallgrass prairie. Prairie Naturalist 35:197-211.
https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1159&context=usgsnpwrc.
https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1159&context=usgsnpwrc.
Shaffer, J. A., L. D. Igl, and F. VanHove. 2003. Historical and recent records and first nest records of Henslow’s Sparrow in North Dakota. Prairie Naturalist 35:81-94.
https://digitalcommons.unl.edu/usgsnpwrc/159/.
https://digitalcommons.unl.edu/usgsnpwrc/159/.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 103
The effects of management practices on grassland birds—Wilson’s Phalarope (Phalaropus tricolor) The effects of management practices on grassland birds—Wilson’s Phalarope (Phalaropus tricolor)
The key to Wilson’s Phalarope (Phalaropus tricolor) management is providing wetland complexes containing suitable wetland characteristics (that is, open water, emergent vegetation, and open shoreline) and upland habitat (native grassland or tame hayland) throughout the breeding season. Wilson’s Phalaropes have been reported to use habitats with 15–32 centimeters (cm) average vegetation...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Christopher M. Goldade, Amy L. Zimmerman, Betty R. Euliss
The effects of management practices on grassland birds—Marbled Godwit (Limosa fedoa) The effects of management practices on grassland birds—Marbled Godwit (Limosa fedoa)
Keys to Marbled Godwit (Limosa fedoa) management include providing large expanses of short, sparsely to moderately vegetated landscapes that include native grasslands and wetland complexes. Optimal wetland complexes should contain a diversity of wetland classes and sizes, such as ephemeral, temporary, seasonal, semipermanent, permanent, and alkali wetlands, as well as intermittent...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Melvin P. Nenneman, Betty R. Euliss
The effects of management practices on grassland birds—Long-billed Curlew (Numenius americanus) The effects of management practices on grassland birds—Long-billed Curlew (Numenius americanus)
Keys to Long-billed Curlew (Numenius americanus) management include providing large, open, level to gently rolling grasslands with short vegetation, and tailoring grazing regimes to local conditions. Long-billed Curlews have been reported to use habitats with 3–75 centimeters (cm) average vegetation height, less than or equal to 27 cm visual obstruction reading, 20–71 percent grass cover...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Paul A. Rabie, Betty R. Euliss
The effects of management practices on grassland birds—Mountain Plover (Charadrius montanus) The effects of management practices on grassland birds—Mountain Plover (Charadrius montanus)
The key to Mountain Plover (Charadrius montanus) management is maintaining sparsely vegetated grasslands. Grasslands can be made suitable for breeding Mountain Plovers by preserving large prairie dog (Cynomys species) towns, conducting prescribed burns, or implementing heavy grazing in some situations. Mountain Plovers have been reported to use habitats with 2–38 centimeters average...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Melvin P. Nenneman, Travis L. Wooten, Betty R. Euliss
The effects of management practices on grassland birds — An introduction to North American grasslands and the practices used to manage grasslands and grassland birds The effects of management practices on grassland birds — An introduction to North American grasslands and the practices used to manage grasslands and grassland birds
The Great Plains of North America is defined as the land mass that encompasses the entire central portion of the North American continent that, at the time of European settlement, was an unbroken expanse of primarily herbaceous vegetation. The Great Plains extend from central Saskatchewan and Alberta to central Mexico and from Indiana to the Rocky Mountains. The expanses of herbaceous...
Authors
Jill A. Shaffer, John P. DeLong
The effects of management practices on grassland birds—Rates of Brown-headed Cowbird (Molothrus ater) parasitism in nests of North American grassland birds The effects of management practices on grassland birds—Rates of Brown-headed Cowbird (Molothrus ater) parasitism in nests of North American grassland birds
The Brown-headed Cowbird (Molothrus ater) is an obligate brood parasite that relies entirely on host species to incubate its eggs and rear its young. The Brown-headed Cowbird is a host generalist; eggs of the cowbird have been found in nests of more than 220 species of North American birds. Although cowbirds are not considered a serious threat to their primary avian hosts, cowbird brood...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson
The effects of management practices on grassland birds The effects of management practices on grassland birds
Since the mid-1960s, populations of grassland birds have been declining more precipitously than any other group of birds in North America. These long-term declines highlight the need to better understand the habitat requirements of grassland birds and how management practices affect individual species and their habitats. Although resource managers have long recognized that every...
Estimating offsets for avian displacement effects of anthropogenic impacts Estimating offsets for avian displacement effects of anthropogenic impacts
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...
Authors
Jill A. Shaffer, Charles R. Loesch, Deborah A. Buhl
Estimating indirect impacts of wind-energy development for breeding grassland birds and waterfowl in the northern Great Plains Estimating indirect impacts of wind-energy development for breeding grassland birds and waterfowl in the northern Great Plains
No abstract available.
Authors
Jill A. Shaffer, Charles R. Loesch, Deborah A. Buhl
Modeling effects of crop production, energy development and conservation-grassland loss on avian habitat Modeling effects of crop production, energy development and conservation-grassland loss on avian habitat
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...
Authors
Jill A. Shaffer, Cali L. Roth, David M. Mushet
The effects of management practices on grassland birds—Horned Lark (Eremophila alpestris) The effects of management practices on grassland birds—Horned Lark (Eremophila alpestris)
The key to Horned Lark (Eremophila alpestris) management is maintaining areas with short, sparse vegetation by burning, mowing, or grazing. Horned Larks have been reported to use habitats with less than or equal to (≤) 70 centimeters (cm) average vegetation height, 3–26 cm visual obstruction reading, 15–67 percent grass cover, 3–70 percent forb cover, ≤21 percent shrub cover, 1–44...
Authors
Meghan F. Dinkins, Lawrence D. Igl, Jill A. Shaffer, Douglas H. Johnson, Amy L. Zimmerman, Barry D. Parkin, Christopher M. Goldade, Betty R. Euliss
Model parameters for representative wetland plant functional groups Model parameters for representative wetland plant functional groups
Wetlands provide a wide variety of ecosystem services including water quality remediation, biodiversity refugia, groundwater recharge, and floodwater storage. Realistic estimation of ecosystem service benefits associated with wetlands requires reasonable simulation of the hydrology of each site and realistic simulation of the upland and wetland plant growth cycles. Objectives of this...
Authors
Amber S. Williams, James R. Kiniry, David M. Mushet, Loren M. Smith, Scott T. McMurry, Kelly Attebury, Megan Lang, Gregory W. McCarty, Jill A. Shaffer, William R. Effland, Mari-Vaughn V. Johnson
Non-USGS Publications**
Dechant, J. A. 2001. Range expansion of Pileated Woodpecker in North Dakota. Prairie Naturalist 33:163-182.
https://pubs.er.usgs.gov/publication/1001692
https://pubs.er.usgs.gov/publication/1001692
Winter, M., S. E. Hawks, J. A. Shaffer, and D. H. Johnson. 2003. Guidelines for finding nests of passerine birds in tallgrass prairie. Prairie Naturalist 35:197-211.
https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1159&context=usgsnpwrc.
https://digitalcommons.unl.edu/cgi/viewcontent.cgi?article=1159&context=usgsnpwrc.
Shaffer, J. A., L. D. Igl, and F. VanHove. 2003. Historical and recent records and first nest records of Henslow’s Sparrow in North Dakota. Prairie Naturalist 35:81-94.
https://digitalcommons.unl.edu/usgsnpwrc/159/.
https://digitalcommons.unl.edu/usgsnpwrc/159/.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.