Lawrence Igl, PhD (Former Employee)
Science and Products
Filter Total Items: 121
Adaptive management in native grasslands managed by the U.S. Fish and Wildlife Service—Implications for grassland birds Adaptive management in native grasslands managed by the U.S. Fish and Wildlife Service—Implications for grassland birds
Burning and grazing are natural processes in native prairies that also serve as important tools in grassland management to conserve plant diversity, to limit encroachment of woody and invasive plants, and to maintain or improve prairies. Native prairies managed by the U.S. Fish and Wildlife Service (FWS) in the Prairie Pothole Region of the northern Great Plains have been extensively...
Authors
Lawrence D. Igl, Wesley E. Newton, Todd A. Grant, Cami S. Dixon
Northern Prairie Wildlife Research Center—Celebrating 50 years of science Northern Prairie Wildlife Research Center—Celebrating 50 years of science
The Northern Prairie Wildlife Research Center (NPWRC) celebrated its 50-year anniversary in 2015. This report is written in support of that observance. We document why and how the NPWRC came to be and describe some of its many accomplishments and the influence the Center’s research program has had on natural resource management. The history is organized by major research themes, proceeds...
Authors
Jane E. Austin, Terry L. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Gary L. Krapu, Diane L. Larson, L. David Mech, David M. Mushet, Marsha A. Sovada
The influence of local- and landscape-level factors on wetland breeding birds in the Prairie Pothole Region of North and South Dakota The influence of local- and landscape-level factors on wetland breeding birds in the Prairie Pothole Region of North and South Dakota
We examined the relationship between local- (wetland) and landscape-level factors and breeding bird abundances on 1,190 depressional wetlands in the Prairie Pothole Region of North and South Dakota during the breeding seasons in 1995–97. The surveyed wetlands were selected from five wetland classes (alkali, permanent, semipermanent, seasonal, or temporary), two wetland types (natural or...
Authors
Lawrence D. Igl, Jill A. Shaffer, Douglas H. Johnson, Deborah A. Buhl
Effects of haying on breeding birds in CRP grasslands Effects of haying on breeding birds in CRP grasslands
The Conservation Reserve Program (CRP) is a voluntary program that is available to agricultural producers to help protect environmentally sensitive or highly erodible land. Management disturbances of CRP grasslands generally are not allowed unless authorized to provide relief to livestock producers during severe drought or a similar natural disaster (i.e., emergency haying and grazing)...
Authors
Lawrence D. Igl, Douglas H. Johnson
Historic and recent nesting records of Turkey Vultures in South Dakota Historic and recent nesting records of Turkey Vultures in South Dakota
Present-day vultures are generally classified into two distinct groups: Old World vultures and new World vultures. The two groups share morphological and behavioral characters (e.g. scavenger diet, energy-efficient soaring, mostly featherless head), but historically the two groups were considered phylogenetically distant with long and independent histories (Rich 198., Wink 1995, Zhang et...
Authors
Lawrence D. Igl, Brian J. Chepulis, Kyle E. McLean
Influence of climate change on productivity of American White Pelicans, Pelecanus erythrorhynchos Influence of climate change on productivity of American White Pelicans, Pelecanus erythrorhynchos
In the past decade, severe weather and West Nile virus were major causes of chick mortality at American white pelican (Pelecanus erythrorhynchos) colonies in the northern plains of North America. At one of these colonies, Chase Lake National Wildlife Refuge in North Dakota, spring arrival by pelicans has advanced approximately 16 days over a period of 44 years (1965–2008). We examined...
Authors
Marsha A. Sovada, Lawrence D. Igl, Pamela J. Pietz, Alisa J. Bartos
Science and Products
Filter Total Items: 121
Adaptive management in native grasslands managed by the U.S. Fish and Wildlife Service—Implications for grassland birds Adaptive management in native grasslands managed by the U.S. Fish and Wildlife Service—Implications for grassland birds
Burning and grazing are natural processes in native prairies that also serve as important tools in grassland management to conserve plant diversity, to limit encroachment of woody and invasive plants, and to maintain or improve prairies. Native prairies managed by the U.S. Fish and Wildlife Service (FWS) in the Prairie Pothole Region of the northern Great Plains have been extensively...
Authors
Lawrence D. Igl, Wesley E. Newton, Todd A. Grant, Cami S. Dixon
Northern Prairie Wildlife Research Center—Celebrating 50 years of science Northern Prairie Wildlife Research Center—Celebrating 50 years of science
The Northern Prairie Wildlife Research Center (NPWRC) celebrated its 50-year anniversary in 2015. This report is written in support of that observance. We document why and how the NPWRC came to be and describe some of its many accomplishments and the influence the Center’s research program has had on natural resource management. The history is organized by major research themes, proceeds...
Authors
Jane E. Austin, Terry L. Shaffer, Lawrence D. Igl, Douglas H. Johnson, Gary L. Krapu, Diane L. Larson, L. David Mech, David M. Mushet, Marsha A. Sovada
The influence of local- and landscape-level factors on wetland breeding birds in the Prairie Pothole Region of North and South Dakota The influence of local- and landscape-level factors on wetland breeding birds in the Prairie Pothole Region of North and South Dakota
We examined the relationship between local- (wetland) and landscape-level factors and breeding bird abundances on 1,190 depressional wetlands in the Prairie Pothole Region of North and South Dakota during the breeding seasons in 1995–97. The surveyed wetlands were selected from five wetland classes (alkali, permanent, semipermanent, seasonal, or temporary), two wetland types (natural or...
Authors
Lawrence D. Igl, Jill A. Shaffer, Douglas H. Johnson, Deborah A. Buhl
Effects of haying on breeding birds in CRP grasslands Effects of haying on breeding birds in CRP grasslands
The Conservation Reserve Program (CRP) is a voluntary program that is available to agricultural producers to help protect environmentally sensitive or highly erodible land. Management disturbances of CRP grasslands generally are not allowed unless authorized to provide relief to livestock producers during severe drought or a similar natural disaster (i.e., emergency haying and grazing)...
Authors
Lawrence D. Igl, Douglas H. Johnson
Historic and recent nesting records of Turkey Vultures in South Dakota Historic and recent nesting records of Turkey Vultures in South Dakota
Present-day vultures are generally classified into two distinct groups: Old World vultures and new World vultures. The two groups share morphological and behavioral characters (e.g. scavenger diet, energy-efficient soaring, mostly featherless head), but historically the two groups were considered phylogenetically distant with long and independent histories (Rich 198., Wink 1995, Zhang et...
Authors
Lawrence D. Igl, Brian J. Chepulis, Kyle E. McLean
Influence of climate change on productivity of American White Pelicans, Pelecanus erythrorhynchos Influence of climate change on productivity of American White Pelicans, Pelecanus erythrorhynchos
In the past decade, severe weather and West Nile virus were major causes of chick mortality at American white pelican (Pelecanus erythrorhynchos) colonies in the northern plains of North America. At one of these colonies, Chase Lake National Wildlife Refuge in North Dakota, spring arrival by pelicans has advanced approximately 16 days over a period of 44 years (1965–2008). We examined...
Authors
Marsha A. Sovada, Lawrence D. Igl, Pamela J. Pietz, Alisa J. Bartos