Charles Van Riper, III, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 135
Spatial and temporal variation in climate change: A bird’s eye view Spatial and temporal variation in climate change: A bird’s eye view
Recent changes in global climate have dramatically altered worldwide temperatures and the corresponding timing of seasonal climate conditions. Recognizing the degree to which species respond to changing climates is therefore an area of increasing conservation concern as species that are unable to respond face increased risk of extinction. Here we examine spatial and temporal...
Authors
Joseph J. Fontaine, Karie L. Decker, Susan K. Skagen, Charles van Riper
Landbird migration in the American West: Recent progress and future research directions Landbird migration in the American West: Recent progress and future research directions
Our knowledge of avian behaviors during the nonbreeding period still lags behind that of the breeding season, but the last decade has witnessed a proliferation in research that has yielded significant progress in understanding migration patterns of North American birds. And, although historically the great majority of migration research has been conducted in the eastern half of the...
Authors
J.D. Carlisle, S. K. Skagen, B.E. Kus, Charles van Riper, K.L. Paxton, J.F. Kelly
Rethinking avian response to Tamarix on the lower Colorado River: A threshold hypothesis Rethinking avian response to Tamarix on the lower Colorado River: A threshold hypothesis
Many of the world's large river systems have been greatly altered in the past century due to river regulation, agriculture, and invasion of introduced Tamarix spp. (saltcedar, tamarisk). These riverine ecosystems are known to provide important habitat for avian communities, but information on responses of birds to differing levels of Tamarix is not known. Past research on birds along the...
Authors
Charles van Riper, K.L. Paxton, C. O'brien, P.B. Shafroth, L.J. McGrath
The Colorado Plateau III: integrating research and resources management for effective conservation The Colorado Plateau III: integrating research and resources management for effective conservation
Roughly centered on the Four Corners region of the southwestern United States, the Colorado Plateau covers an area of 130,000 square miles. The relatively high semi-arid province boasts nine national parks, sixteen national monuments, many state parks, and dozens of wilderness areas. With the highest concentration of parklands in North America and unique geological and ecological...
Authors
Mark K. Sogge
USGS goals for the coming decade USGS goals for the coming decade
The U.S. Geological Survey (USGS) proposes six strategic directions for managing ecosystems along with modernization of observation networks of land, water, and biological resources.
Authors
M.D. Myers, M. A. Ayers, Jill Baron, P.R. Beauchemin, Martin B. Goldhaber, Deborah R. Hutchinson, James W. LaBaugh, Roger G. Sayre, Steven E. Schwarzbach, Eugene S. Schweig, June M. Thormodsgard, Charles van Riper, W. Wilde
Avian pox Avian pox
This chapter contains section titled: Introduction Synonyms History Distribution Host Range Etiology Epizootiology Clinical Signs Pathogenesis Pathology Diagnosis Immunity Public Health Concerns Domestic Animal Health Concerns Wildlife Population Impacts Treatment and Control Management Implications Acknowledgements Literature Cited
Authors
Charles van Riper, Donald J. Forrester
Science and Products
Filter Total Items: 135
Spatial and temporal variation in climate change: A bird’s eye view Spatial and temporal variation in climate change: A bird’s eye view
Recent changes in global climate have dramatically altered worldwide temperatures and the corresponding timing of seasonal climate conditions. Recognizing the degree to which species respond to changing climates is therefore an area of increasing conservation concern as species that are unable to respond face increased risk of extinction. Here we examine spatial and temporal...
Authors
Joseph J. Fontaine, Karie L. Decker, Susan K. Skagen, Charles van Riper
Landbird migration in the American West: Recent progress and future research directions Landbird migration in the American West: Recent progress and future research directions
Our knowledge of avian behaviors during the nonbreeding period still lags behind that of the breeding season, but the last decade has witnessed a proliferation in research that has yielded significant progress in understanding migration patterns of North American birds. And, although historically the great majority of migration research has been conducted in the eastern half of the...
Authors
J.D. Carlisle, S. K. Skagen, B.E. Kus, Charles van Riper, K.L. Paxton, J.F. Kelly
Rethinking avian response to Tamarix on the lower Colorado River: A threshold hypothesis Rethinking avian response to Tamarix on the lower Colorado River: A threshold hypothesis
Many of the world's large river systems have been greatly altered in the past century due to river regulation, agriculture, and invasion of introduced Tamarix spp. (saltcedar, tamarisk). These riverine ecosystems are known to provide important habitat for avian communities, but information on responses of birds to differing levels of Tamarix is not known. Past research on birds along the...
Authors
Charles van Riper, K.L. Paxton, C. O'brien, P.B. Shafroth, L.J. McGrath
The Colorado Plateau III: integrating research and resources management for effective conservation The Colorado Plateau III: integrating research and resources management for effective conservation
Roughly centered on the Four Corners region of the southwestern United States, the Colorado Plateau covers an area of 130,000 square miles. The relatively high semi-arid province boasts nine national parks, sixteen national monuments, many state parks, and dozens of wilderness areas. With the highest concentration of parklands in North America and unique geological and ecological...
Authors
Mark K. Sogge
USGS goals for the coming decade USGS goals for the coming decade
The U.S. Geological Survey (USGS) proposes six strategic directions for managing ecosystems along with modernization of observation networks of land, water, and biological resources.
Authors
M.D. Myers, M. A. Ayers, Jill Baron, P.R. Beauchemin, Martin B. Goldhaber, Deborah R. Hutchinson, James W. LaBaugh, Roger G. Sayre, Steven E. Schwarzbach, Eugene S. Schweig, June M. Thormodsgard, Charles van Riper, W. Wilde
Avian pox Avian pox
This chapter contains section titled: Introduction Synonyms History Distribution Host Range Etiology Epizootiology Clinical Signs Pathogenesis Pathology Diagnosis Immunity Public Health Concerns Domestic Animal Health Concerns Wildlife Population Impacts Treatment and Control Management Implications Acknowledgements Literature Cited
Authors
Charles van Riper, Donald J. Forrester