Bob Klaver, PhD (Former Employee)
Science and Products
Filter Total Items: 93
Confounded winter and spring phenoclimatology on large herbivore ranges Confounded winter and spring phenoclimatology on large herbivore ranges
Annual variation in winter severity and growing season vegetation dynamics appear to influence the demography of temperate herbivores but parsing winter from spring effects requires independent metrics of environmental conditions specific to each season. We tested for independence in annual variation amongst four common metrics used to describe winter severity and early growing season...
Authors
David Christianson, Robert W. Klaver, Arthur Middleton, Matthew Kauffman
Effects of plant phenology and vertical height on accuracy of radio-telemetry locations Effects of plant phenology and vertical height on accuracy of radio-telemetry locations
The use of very high frequency (VHF) radio-telemetry remains wide-spread in studies of wildlife ecology and management. However, few studies have evaluated the influence of vegetative obstruction on accuracy in differing habitats with varying transmitter types and heights. Using adult and fawn collars at varying heights above the ground (0, 33, 66 and 100 cm) to simulate activities...
Authors
Troy W. Grovenburg, Christopher N. Jacques, Robert W. Klaver, Christopher S. DePerno, Chad P. Lehman, Todd J. Brinkman, Kevin A. Robling, Susan P. Rupp, Jonathan A. Jenks
Habitat, wildlife and one health: Arcanobacterium pyogenes in Maryland and Upper Eastern Shore white-tailed deer populations Habitat, wildlife and one health: Arcanobacterium pyogenes in Maryland and Upper Eastern Shore white-tailed deer populations
Background: Understanding the distribution of disease in wildlife is key to predicting the impact of emerging zoonotic one health concerns, especially for wildlife species with extensive human and livestock interfaces. The widespread distribution and complex interactions of white -tailed deer (Odocoileus virginianus) with humans suggest deer population health and management may have...
Authors
Melissa M. Turner, Christopher S. DePerno, Mark C. Conner, T. Brian Eyler, Richard A. Lancia, Robert W. Klaver, Michael K. Stoskopf
A vectorial capacity product to monitor changing malaria transmission potential in epidemic regions of Africa A vectorial capacity product to monitor changing malaria transmission potential in epidemic regions of Africa
Rainfall and temperature are two of the major factors triggering malaria epidemics in warm semi-arid (desert-fringe) and high altitude (highland-fringe) epidemic risk areas. The ability of the mosquitoes to transmit Plasmodium spp. is dependent upon a series of biological features generally referred to as vectorial capacity. In this study, the vectorial capacity model (VCAP) was expanded...
Authors
Pietro Ceccato, Christelle Vancutsem, Robert Klaver, James Rowland, Stephen J. Connor
Timing and synchrony of births in bighorn sheep: implications for reintroduction and conservation Timing and synchrony of births in bighorn sheep: implications for reintroduction and conservation
Context: Timing (mean birthdate) and synchrony (variance around that date) of births can influence survival of young and growth in ungulate populations. Some restored populations of ungulates may not adjust these life-history characteristics to environments of release sites until several years after release, which may influence success of reintroductions. Aims: We quantified timing and...
Authors
Jericho C. Whiting, Daniel Olson, Justin M. Shannon, R. Terry Bowyer, Robert W. Klaver, Jerran T. Flinders
Spatial ecology of white-tailed deer fawns in the northern Great Plains: implications of loss of conservation reserve program grasslands Spatial ecology of white-tailed deer fawns in the northern Great Plains: implications of loss of conservation reserve program grasslands
Few studies have evaluated how wildlife, and white-tailed deer (Odocoileus virginianus) in particular, respond to Conservation Reserve Program (CRP) grasslands. We conducted a 3-year study (2007–2009) to determine the influence of CRP on fawn ecology during a time of declining CRP enrollment. We captured and radiocollared 81 fawn white-tailed deer during 15 May to 15 June 2007–2009 in...
Authors
Troy W. Grovenburg, Robert W. Klaver, Jonathan A. Jenks
Non-USGS Publications**
Smith, J.B., S.K. Windels, T. Wolf, R.W. Klaver, J.L. Belant. 2016. Do transmitters affect survival and body condition of American beavers (Castor canadensis)? Wildlife Biology 22:117 - 123
Sasmal, I., R.W. Klaver, J.A. Jenks, and G.M. Schroeder. Age-specific survival of reintroduced swift fox in Badlands National Park and surrounding lands. Wildlife Society Bulletin
Jacques, C.N., J.A. Jenks, T.W. Grovenburg, and R.W. Klaver. 2015. Influence of habitat and intrinsic characteristics on survival of neonatal pronghorn. PLoS ONE 10: e0144026
Datta, S., J. A. Jenks, K. C. Jensen, C. C. Swanson, R. W. Klaver, I. Sasmal, and T. W. Grovenburg. 2015. Mate Replacement and Alloparental Care in Ferruginous Hawk (Buteo regalis). The Prairie Naturalist 47:36–37
Jacques, C.N., J.A. Jenks, T.W. Grovenburg, R.W. Klaver, and S.A. Dubay. 2015. Influence of ecological factors on prevalence of meningeal worm (Parelaphostrongylus tenuis) infection in South Dakota, USA. Journal of Wildlife Diseases 51: 332-340
**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: 93
Confounded winter and spring phenoclimatology on large herbivore ranges Confounded winter and spring phenoclimatology on large herbivore ranges
Annual variation in winter severity and growing season vegetation dynamics appear to influence the demography of temperate herbivores but parsing winter from spring effects requires independent metrics of environmental conditions specific to each season. We tested for independence in annual variation amongst four common metrics used to describe winter severity and early growing season...
Authors
David Christianson, Robert W. Klaver, Arthur Middleton, Matthew Kauffman
Effects of plant phenology and vertical height on accuracy of radio-telemetry locations Effects of plant phenology and vertical height on accuracy of radio-telemetry locations
The use of very high frequency (VHF) radio-telemetry remains wide-spread in studies of wildlife ecology and management. However, few studies have evaluated the influence of vegetative obstruction on accuracy in differing habitats with varying transmitter types and heights. Using adult and fawn collars at varying heights above the ground (0, 33, 66 and 100 cm) to simulate activities...
Authors
Troy W. Grovenburg, Christopher N. Jacques, Robert W. Klaver, Christopher S. DePerno, Chad P. Lehman, Todd J. Brinkman, Kevin A. Robling, Susan P. Rupp, Jonathan A. Jenks
Habitat, wildlife and one health: Arcanobacterium pyogenes in Maryland and Upper Eastern Shore white-tailed deer populations Habitat, wildlife and one health: Arcanobacterium pyogenes in Maryland and Upper Eastern Shore white-tailed deer populations
Background: Understanding the distribution of disease in wildlife is key to predicting the impact of emerging zoonotic one health concerns, especially for wildlife species with extensive human and livestock interfaces. The widespread distribution and complex interactions of white -tailed deer (Odocoileus virginianus) with humans suggest deer population health and management may have...
Authors
Melissa M. Turner, Christopher S. DePerno, Mark C. Conner, T. Brian Eyler, Richard A. Lancia, Robert W. Klaver, Michael K. Stoskopf
A vectorial capacity product to monitor changing malaria transmission potential in epidemic regions of Africa A vectorial capacity product to monitor changing malaria transmission potential in epidemic regions of Africa
Rainfall and temperature are two of the major factors triggering malaria epidemics in warm semi-arid (desert-fringe) and high altitude (highland-fringe) epidemic risk areas. The ability of the mosquitoes to transmit Plasmodium spp. is dependent upon a series of biological features generally referred to as vectorial capacity. In this study, the vectorial capacity model (VCAP) was expanded...
Authors
Pietro Ceccato, Christelle Vancutsem, Robert Klaver, James Rowland, Stephen J. Connor
Timing and synchrony of births in bighorn sheep: implications for reintroduction and conservation Timing and synchrony of births in bighorn sheep: implications for reintroduction and conservation
Context: Timing (mean birthdate) and synchrony (variance around that date) of births can influence survival of young and growth in ungulate populations. Some restored populations of ungulates may not adjust these life-history characteristics to environments of release sites until several years after release, which may influence success of reintroductions. Aims: We quantified timing and...
Authors
Jericho C. Whiting, Daniel Olson, Justin M. Shannon, R. Terry Bowyer, Robert W. Klaver, Jerran T. Flinders
Spatial ecology of white-tailed deer fawns in the northern Great Plains: implications of loss of conservation reserve program grasslands Spatial ecology of white-tailed deer fawns in the northern Great Plains: implications of loss of conservation reserve program grasslands
Few studies have evaluated how wildlife, and white-tailed deer (Odocoileus virginianus) in particular, respond to Conservation Reserve Program (CRP) grasslands. We conducted a 3-year study (2007–2009) to determine the influence of CRP on fawn ecology during a time of declining CRP enrollment. We captured and radiocollared 81 fawn white-tailed deer during 15 May to 15 June 2007–2009 in...
Authors
Troy W. Grovenburg, Robert W. Klaver, Jonathan A. Jenks
Non-USGS Publications**
Smith, J.B., S.K. Windels, T. Wolf, R.W. Klaver, J.L. Belant. 2016. Do transmitters affect survival and body condition of American beavers (Castor canadensis)? Wildlife Biology 22:117 - 123
Sasmal, I., R.W. Klaver, J.A. Jenks, and G.M. Schroeder. Age-specific survival of reintroduced swift fox in Badlands National Park and surrounding lands. Wildlife Society Bulletin
Jacques, C.N., J.A. Jenks, T.W. Grovenburg, and R.W. Klaver. 2015. Influence of habitat and intrinsic characteristics on survival of neonatal pronghorn. PLoS ONE 10: e0144026
Datta, S., J. A. Jenks, K. C. Jensen, C. C. Swanson, R. W. Klaver, I. Sasmal, and T. W. Grovenburg. 2015. Mate Replacement and Alloparental Care in Ferruginous Hawk (Buteo regalis). The Prairie Naturalist 47:36–37
Jacques, C.N., J.A. Jenks, T.W. Grovenburg, R.W. Klaver, and S.A. Dubay. 2015. Influence of ecological factors on prevalence of meningeal worm (Parelaphostrongylus tenuis) infection in South Dakota, USA. Journal of Wildlife Diseases 51: 332-340
**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.