Charles Van Riper, III, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 135
Breeding bird response to juniper woodland expansion Breeding bird response to juniper woodland expansion
In recent times, pinyon (Pinus spp.)-juniper (Juniperus spp.) woodlands have expanded into large portions of the Southwest historically occupied by grassland vegetation. From 1997-1998, we studied responses of breeding birds to one-seed juniper (J. monosperma) woodland expansion at 2 grassland study areas in northern Arizona. We sampled breeding birds in 3 successional stages along a...
Authors
Steven S. Rosenstock, Charles van Riper
First-year movements by juvenile Mexican spotted owls in the Canyonlands of Utah First-year movements by juvenile Mexican spotted owls in the Canyonlands of Utah
We studied first-year movements of Mexican Spotted Owls (Strix occidentalis lucida) during natal dispersal in canyonlands of southern Utah. Thirty-one juvenile Mexican Spotted Owls were captured and radiotracked during 1992-95 to examine behavior and conduct experiments related to the onset of natal dispersal. Juvenile Spotted Owls dispersed from their nest areas during September to...
Authors
D.W. Willey, Charles van Riper
Proceedings of the fourth biennial conference of research on the Colorado Plateau Proceedings of the fourth biennial conference of research on the Colorado Plateau
The 13 chapters in this book were selected from the 75 research papers presented at the Fourth Biennial Conference of Research on the Colorado Plateau. The theme of this meeting centered around research, inventory, and monitoring on lands over the Colorado Plateau, with a focus on the newly created BLM Grand Staircase-Escalante National Monument. The conference, held on 15-18 September...
Authors
M.A. Stuart
The influence of transportation corridors on the movement of pronghorn antelope over a fragmented landscape in northern Arizona The influence of transportation corridors on the movement of pronghorn antelope over a fragmented landscape in northern Arizona
No abstract available
Authors
Charles van Riper
A comparison of small-mammal communities in a desert riparian floodplain A comparison of small-mammal communities in a desert riparian floodplain
We compared small-mammal communities between inactive floodplain and actively flooded terraces of riparian habitat in the Verde Valley of central Arizona. We used species diversity, abundance, weight of adult males, number of juveniles, number of reproductively active individuals, longevity, residency status, and patterns of microhabitat use to compare the two communities. Although...
Authors
Laura E. Ellison, Charles van Riper
Peregrine falcon Peregrine falcon
No abstract available.
Authors
Charles van Riper, Sandra G. van Riper
Proceedings of the third biennial conference of research on the Colorado Plateau Proceedings of the third biennial conference of research on the Colorado Plateau
The papers in this volume are contributions from federal, state, and private sector researchers, who have come together to share scientific information with land managers on the Colorado Plateau. This Proceedings is the third in a series of publications that focuses on providing information to land managers on baseline scientific information pertaining to physical, cultural and...
Authors
Elena T. Deshler
A comparison of avian hematozoan epizootiology in two California coastal scrub communities A comparison of avian hematozoan epizootiology in two California coastal scrub communities
Passerine birds within two California (USA) coastal scrub ecosystems, an island and a mainland site, were examined for hematozoa from 1984 to 1990. Island birds had a significantly lower hematozoan prevalence than mainland birds. This prevalence difference can be related to a lack of appropriate hematozoan vectors on the island. Haemoproteus spp. and Leucocytozoon spp. were the most...
Authors
Paul E. Super, Charles van Riper
Proceedings of the second biennial conference on research in Colorado Plateau National Parks Proceedings of the second biennial conference on research in Colorado Plateau National Parks
On 25-28 October 1993 in Flagstaff, Arizona, the National Biological Service Colorado Plateau Research Station (formerly National Park Service Cooperative Park Studies Unit) and Northern Arizona University hosted the Second Biennial Conference of Research on the Colorado Plateau. The conference theme focused on research, inventory, and monitoring on the federal, state, and private lands...
Plasmodia of birds Plasmodia of birds
No abstract available.
Authors
Charles van Riper, C. T. Atkinson, T. M. Seed
Orange-crowned warbler (Vermivora celata) Orange-crowned warbler (Vermivora celata)
No abstract available.
Authors
M. K. Sogge, W. M. Gilbert, Charles van Riper
Science and Products
Filter Total Items: 135
Breeding bird response to juniper woodland expansion Breeding bird response to juniper woodland expansion
In recent times, pinyon (Pinus spp.)-juniper (Juniperus spp.) woodlands have expanded into large portions of the Southwest historically occupied by grassland vegetation. From 1997-1998, we studied responses of breeding birds to one-seed juniper (J. monosperma) woodland expansion at 2 grassland study areas in northern Arizona. We sampled breeding birds in 3 successional stages along a...
Authors
Steven S. Rosenstock, Charles van Riper
First-year movements by juvenile Mexican spotted owls in the Canyonlands of Utah First-year movements by juvenile Mexican spotted owls in the Canyonlands of Utah
We studied first-year movements of Mexican Spotted Owls (Strix occidentalis lucida) during natal dispersal in canyonlands of southern Utah. Thirty-one juvenile Mexican Spotted Owls were captured and radiotracked during 1992-95 to examine behavior and conduct experiments related to the onset of natal dispersal. Juvenile Spotted Owls dispersed from their nest areas during September to...
Authors
D.W. Willey, Charles van Riper
Proceedings of the fourth biennial conference of research on the Colorado Plateau Proceedings of the fourth biennial conference of research on the Colorado Plateau
The 13 chapters in this book were selected from the 75 research papers presented at the Fourth Biennial Conference of Research on the Colorado Plateau. The theme of this meeting centered around research, inventory, and monitoring on lands over the Colorado Plateau, with a focus on the newly created BLM Grand Staircase-Escalante National Monument. The conference, held on 15-18 September...
Authors
M.A. Stuart
The influence of transportation corridors on the movement of pronghorn antelope over a fragmented landscape in northern Arizona The influence of transportation corridors on the movement of pronghorn antelope over a fragmented landscape in northern Arizona
No abstract available
Authors
Charles van Riper
A comparison of small-mammal communities in a desert riparian floodplain A comparison of small-mammal communities in a desert riparian floodplain
We compared small-mammal communities between inactive floodplain and actively flooded terraces of riparian habitat in the Verde Valley of central Arizona. We used species diversity, abundance, weight of adult males, number of juveniles, number of reproductively active individuals, longevity, residency status, and patterns of microhabitat use to compare the two communities. Although...
Authors
Laura E. Ellison, Charles van Riper
Peregrine falcon Peregrine falcon
No abstract available.
Authors
Charles van Riper, Sandra G. van Riper
Proceedings of the third biennial conference of research on the Colorado Plateau Proceedings of the third biennial conference of research on the Colorado Plateau
The papers in this volume are contributions from federal, state, and private sector researchers, who have come together to share scientific information with land managers on the Colorado Plateau. This Proceedings is the third in a series of publications that focuses on providing information to land managers on baseline scientific information pertaining to physical, cultural and...
Authors
Elena T. Deshler
A comparison of avian hematozoan epizootiology in two California coastal scrub communities A comparison of avian hematozoan epizootiology in two California coastal scrub communities
Passerine birds within two California (USA) coastal scrub ecosystems, an island and a mainland site, were examined for hematozoa from 1984 to 1990. Island birds had a significantly lower hematozoan prevalence than mainland birds. This prevalence difference can be related to a lack of appropriate hematozoan vectors on the island. Haemoproteus spp. and Leucocytozoon spp. were the most...
Authors
Paul E. Super, Charles van Riper
Proceedings of the second biennial conference on research in Colorado Plateau National Parks Proceedings of the second biennial conference on research in Colorado Plateau National Parks
On 25-28 October 1993 in Flagstaff, Arizona, the National Biological Service Colorado Plateau Research Station (formerly National Park Service Cooperative Park Studies Unit) and Northern Arizona University hosted the Second Biennial Conference of Research on the Colorado Plateau. The conference theme focused on research, inventory, and monitoring on the federal, state, and private lands...
Plasmodia of birds Plasmodia of birds
No abstract available.
Authors
Charles van Riper, C. T. Atkinson, T. M. Seed
Orange-crowned warbler (Vermivora celata) Orange-crowned warbler (Vermivora celata)
No abstract available.
Authors
M. K. Sogge, W. M. Gilbert, Charles van Riper