Jill Shaffer (Former Employee)
Science and Products
Filter Total Items: 103
The effects of management practices on grassland birds—Eastern Meadowlark (Sturnella magna) The effects of management practices on grassland birds—Eastern Meadowlark (Sturnella magna)
The key to Eastern Meadowlark (Sturnella magna) management is providing large areas of contiguous grassland of moderate height with significant grass cover and moderate forb density. Eastern Meadowlarks have been reported to use habitats with 10–187 centimeters (cm) average vegetation height, 6–88 cm visual obstruction reading, 53–86 percent grass cover, 4–50 percent forb cover, less...
Authors
Scott D. Hull, Jill A. Shaffer, Lawrence D. Igl
The effects of management practices on grassland birds—Northern Harrier (Circus hudsonius) The effects of management practices on grassland birds—Northern Harrier (Circus hudsonius)
The key to Northern Harrier (Circus hudsonius) management is providing tall, dense vegetation in extensive mesic or xeric grasslands or in wetlands. Northern Harriers have been reported to use habitats with 15–106 centimeter (cm) average vegetation height, 28–75 cm visual obstruction reading, 24–53 percent grass cover, 18–25 percent forb cover, less than or equal to 2 percent shrub cover...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Jason P. Thiele, Betty R. Euliss
The effects of management practices on grassland birds—Ferruginous Hawk (Buteo regalis) The effects of management practices on grassland birds—Ferruginous Hawk (Buteo regalis)
Keys to Ferruginous Hawk (Buteo regalis) management are providing suitable nest sites, protecting active nest areas from human disturbance, and providing suitable habitat for prey.
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Amy L. Zimmerman, Jason P. Thiele, Betty R. Euliss
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—Upland Sandpiper (Bartramia longicauda) The effects of management practices on grassland birds—Upland Sandpiper (Bartramia longicauda)
The key to Upland Sandpiper (Bartramia longicauda) management is providing grasslands of various heights with few shrubs. In general, Upland Sandpipers forage within short vegetation and nest and rear broods within taller vegetation. Upland Sandpipers have been reported to use habitats with less than (
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Meghan F. Dinkins, Christopher M. Goldade, Barry D. Parkin, Betty R. Euliss
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—Eastern Meadowlark (Sturnella magna) The effects of management practices on grassland birds—Eastern Meadowlark (Sturnella magna)
The key to Eastern Meadowlark (Sturnella magna) management is providing large areas of contiguous grassland of moderate height with significant grass cover and moderate forb density. Eastern Meadowlarks have been reported to use habitats with 10–187 centimeters (cm) average vegetation height, 6–88 cm visual obstruction reading, 53–86 percent grass cover, 4–50 percent forb cover, less...
Authors
Scott D. Hull, Jill A. Shaffer, Lawrence D. Igl
The effects of management practices on grassland birds—Northern Harrier (Circus hudsonius) The effects of management practices on grassland birds—Northern Harrier (Circus hudsonius)
The key to Northern Harrier (Circus hudsonius) management is providing tall, dense vegetation in extensive mesic or xeric grasslands or in wetlands. Northern Harriers have been reported to use habitats with 15–106 centimeter (cm) average vegetation height, 28–75 cm visual obstruction reading, 24–53 percent grass cover, 18–25 percent forb cover, less than or equal to 2 percent shrub cover...
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Jason P. Thiele, Betty R. Euliss
The effects of management practices on grassland birds—Ferruginous Hawk (Buteo regalis) The effects of management practices on grassland birds—Ferruginous Hawk (Buteo regalis)
Keys to Ferruginous Hawk (Buteo regalis) management are providing suitable nest sites, protecting active nest areas from human disturbance, and providing suitable habitat for prey.
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Marriah L. Sondreal, Christopher M. Goldade, Amy L. Zimmerman, Jason P. Thiele, Betty R. Euliss
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—Upland Sandpiper (Bartramia longicauda) The effects of management practices on grassland birds—Upland Sandpiper (Bartramia longicauda)
The key to Upland Sandpiper (Bartramia longicauda) management is providing grasslands of various heights with few shrubs. In general, Upland Sandpipers forage within short vegetation and nest and rear broods within taller vegetation. Upland Sandpipers have been reported to use habitats with less than (
Authors
Jill A. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Meghan F. Dinkins, Christopher M. Goldade, Barry D. Parkin, Betty R. Euliss
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.