Charles Van Riper, III, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 131
The Colorado Plateau II: biophysical, socioeconomic, and cultural research
The publication of The Colorado Plateau: Cultural, Biological, and Physical Research in 2004 marked a timely summation of current research in the Four Corners states. This new volume, derived from the seventh Biennial Conference on the Colorado Plateau in 2003, complements the previous book by focusing on the integration of science into resource management issues. The 32 chapters range...
Authors
David J. Mattson
The Colorado Plateau: cultural, biological, and physical research
Stretching from the four corners of Arizona, New Mexico, Colorado, and Utah, the Colorado Plateau is a natural laboratory for a wide range of studies. This volume presents 23 original articles drawn from more than 100 research projects presented at the Sixth Biennial Conference of Research on the Colorado Plateau. This scientific gathering revolved around research, inventory, and...
Authors
Kenneth L. Cole
Diets of insectivorous birds along the Colorado River in Grand Canyon, Arizona
We examined diets of six insectivorous bird species (n = 202 individuals) from two vegetation zones along the Colorado River in Grand Canyon National Park, Arizona, 1994. All bird species consumed similar quantities of caterpillars and beetles, but use of other prey taxa varied. Non-native leafhoppers (Opsius stactagolus) specific to non-native tamarisk (Tamarix chinensis) substantially...
Authors
H.K. Yard, Charles van Riper III, B.T. Brown, M.J. Kearsley
Brown-headed Cowbird parasitism of the Black-throated Sparrow in central Arizona
From 1994-1996 we investigated effects of Brown-headed Cowbird (Molothrus ater) parasitism on Black-throated Sparrow (Amphispiza bilineata) nesting success in the Verde Valley of central Arizona. Of 56 Black-throated Sparrow nests, 52% were parasitized. Black-throated Sparrows appear to respond to natural parasitism by accepting the cowbird egg, deserting the nest, or burying the cowbird...
Authors
M. V. Johnson, Charles van Riper III
Teetering on the edge or too late? Conservation and research issues for avifauna of sagebrush habitats
Degradation, fragmentation, and loss of native sagebrush (Artemisia spp.) landscapes have imperiled these habitats and their associated avifauna. Historically, this vast piece of the Western landscape has been undervalued: even though more than 70% of all remaining sagebrush habitat in the United States is publicly owned,
Authors
Steven T. Knick, David S. Dobkin, John T. Rotenberry, Michael P. Schroeder, W. Matthew Vander Haegen, Charles van Riper III
Epizootiology and effect of avian pox on Hawaiian forest birds
We determined prevalence and altitudinal distribution of forest birds infected with avian pox at 16 locations on Hawaii, from sea level to tree line in mesic and xeric habitats, during 1977–1980. Isolates from lesions were cultured in the laboratory for positive identification of Poxvirus avium. Infected birds from the wild were brought into the laboratory to assess differences in the...
Authors
Charles van Riper III, Sandra G. van Riper, Wallace R. Hansen
`Akohekohe response to flower availability: seasonal abundance, foraging, breeding, and molt
We studied the relationship of flower availability to the seasonality of life history events of the `Akohekohe (Palmeria dolei), a primarily nectarivorous and endangered Hawaiian honeycreeper from montane rain forests on Maui, Hawai`i. For comparison, we also investigated temporal bird density and foraging behavior of three other competing Hawaiian honeycreepers: `Apapane (Himatione...
Authors
Kim E. Berlin, John C. Simon, T.K. Pratt, James R. Kowalsky, Jeff S. Hatfield
Proceedings of the fifth biennial conference of research on the Colorado Plateau
No abstract available.
Authors
K.A. Thomas, M.A. Stuart
[Book Review] Diseases of Wild Waterfowl, by Gary A. Wobeser
Review of: Diseases of Wild Waterfowl. Gary A. Wobeser. 2nd Edition, illustrated. Springer, 1997. ISBN: 0306455900. 324 p.
Authors
Charles van Riper III
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 III
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 III
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
Science and Products
Filter Total Items: 131
The Colorado Plateau II: biophysical, socioeconomic, and cultural research
The publication of The Colorado Plateau: Cultural, Biological, and Physical Research in 2004 marked a timely summation of current research in the Four Corners states. This new volume, derived from the seventh Biennial Conference on the Colorado Plateau in 2003, complements the previous book by focusing on the integration of science into resource management issues. The 32 chapters range...
Authors
David J. Mattson
The Colorado Plateau: cultural, biological, and physical research
Stretching from the four corners of Arizona, New Mexico, Colorado, and Utah, the Colorado Plateau is a natural laboratory for a wide range of studies. This volume presents 23 original articles drawn from more than 100 research projects presented at the Sixth Biennial Conference of Research on the Colorado Plateau. This scientific gathering revolved around research, inventory, and...
Authors
Kenneth L. Cole
Diets of insectivorous birds along the Colorado River in Grand Canyon, Arizona
We examined diets of six insectivorous bird species (n = 202 individuals) from two vegetation zones along the Colorado River in Grand Canyon National Park, Arizona, 1994. All bird species consumed similar quantities of caterpillars and beetles, but use of other prey taxa varied. Non-native leafhoppers (Opsius stactagolus) specific to non-native tamarisk (Tamarix chinensis) substantially...
Authors
H.K. Yard, Charles van Riper III, B.T. Brown, M.J. Kearsley
Brown-headed Cowbird parasitism of the Black-throated Sparrow in central Arizona
From 1994-1996 we investigated effects of Brown-headed Cowbird (Molothrus ater) parasitism on Black-throated Sparrow (Amphispiza bilineata) nesting success in the Verde Valley of central Arizona. Of 56 Black-throated Sparrow nests, 52% were parasitized. Black-throated Sparrows appear to respond to natural parasitism by accepting the cowbird egg, deserting the nest, or burying the cowbird...
Authors
M. V. Johnson, Charles van Riper III
Teetering on the edge or too late? Conservation and research issues for avifauna of sagebrush habitats
Degradation, fragmentation, and loss of native sagebrush (Artemisia spp.) landscapes have imperiled these habitats and their associated avifauna. Historically, this vast piece of the Western landscape has been undervalued: even though more than 70% of all remaining sagebrush habitat in the United States is publicly owned,
Authors
Steven T. Knick, David S. Dobkin, John T. Rotenberry, Michael P. Schroeder, W. Matthew Vander Haegen, Charles van Riper III
Epizootiology and effect of avian pox on Hawaiian forest birds
We determined prevalence and altitudinal distribution of forest birds infected with avian pox at 16 locations on Hawaii, from sea level to tree line in mesic and xeric habitats, during 1977–1980. Isolates from lesions were cultured in the laboratory for positive identification of Poxvirus avium. Infected birds from the wild were brought into the laboratory to assess differences in the...
Authors
Charles van Riper III, Sandra G. van Riper, Wallace R. Hansen
`Akohekohe response to flower availability: seasonal abundance, foraging, breeding, and molt
We studied the relationship of flower availability to the seasonality of life history events of the `Akohekohe (Palmeria dolei), a primarily nectarivorous and endangered Hawaiian honeycreeper from montane rain forests on Maui, Hawai`i. For comparison, we also investigated temporal bird density and foraging behavior of three other competing Hawaiian honeycreepers: `Apapane (Himatione...
Authors
Kim E. Berlin, John C. Simon, T.K. Pratt, James R. Kowalsky, Jeff S. Hatfield
Proceedings of the fifth biennial conference of research on the Colorado Plateau
No abstract available.
Authors
K.A. Thomas, M.A. Stuart
[Book Review] Diseases of Wild Waterfowl, by Gary A. Wobeser
Review of: Diseases of Wild Waterfowl. Gary A. Wobeser. 2nd Edition, illustrated. Springer, 1997. ISBN: 0306455900. 324 p.
Authors
Charles van Riper III
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 III
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 III
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