Charles Van Riper, III, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 135
Challenge theme 1: Understanding and preserving ecological resources: Chapter 3 in United States-Mexican Borderlands: Facing tomorrow's challenges through USGS science Challenge theme 1: Understanding and preserving ecological resources: Chapter 3 in United States-Mexican Borderlands: Facing tomorrow's challenges through USGS science
The notable biodiversity within the United States–Mexican border region is driven by the wide variety of natural landscapes in the area and its biologically unique transition zone of habitats for xeric, temperate, and subtropical species. Six diverse ecoregions cover the length of the border (fig. 3–1): California Coastal Sage, Chaparral, and Oak Woodlands; Sonoran Desert; Madrean...
Authors
J. Bruce Moring, Diana M. Papoulias, Charles van Riper
Desert fires fueled by native annual forbs: Effects of fire on communities of plants and birds in the Lower Sonoran Desert of Arizona Desert fires fueled by native annual forbs: Effects of fire on communities of plants and birds in the Lower Sonoran Desert of Arizona
In 2005, fire ignited by humans swept from Yuma Proving Grounds into Kofa National Wildlife Refuge, Arizona, burning ca. 9,255 ha of Wilderness Area. Fuels were predominantly the native forb Plantago ovata. Large fires at low elevations were rare in the 19th and 20th centuries, and fires fueled by native vegetation are undocumented in the southwestern deserts. We estimated the area...
Authors
Todd C. Esque, Robert H. Webb, Cynthia S.A. Wallace, Charles van Riper, Chris McCreedy, Lindsay A. Smythe
U.S. Geological Survey ecosystems science strategy—Advancing discovery and application through collaboration U.S. Geological Survey ecosystems science strategy—Advancing discovery and application through collaboration
Executive Summary Ecosystem science is critical to making informed decisions about natural resources that can sustain our Nation’s economic and environmental well-being. Resource managers and policymakers are faced with countless decisions each year at local, regional, and national levels on issues as diverse as renewable and nonrenewable energy development, agriculture, forestry, water...
Authors
Byron K. Williams, G. Lynn Wingard, Gary Brewer, James E. Cloern, Guy Gelfenbaum, Robert B. Jacobson, Jeffrey L. Kershner, Anthony D. McGuire, James D. Nichols, Carl D. Shapiro, Charles van Riper, Robin P. White
Tamarisk in riparian woodlands: A bird’s eye view Tamarisk in riparian woodlands: A bird’s eye view
This chapter presents a “bird's eye” view of tamarisk and examines some issues surrounding the management of tamarisk in riparian woodlands. The focus on birds is based on the fact that they are a relatively well-studied group that can provide important insights into the role of tamarisk in riparian ecosystems. Because the decline of native riparian habitat occurred concurrently with the...
Authors
Mark K. Sogge, Eben H. Paxton, Charles van Riper
Breeding colonies of least terns (Sternula antillarum) in northern Sonora, Mexico, 2006-2008 Breeding colonies of least terns (Sternula antillarum) in northern Sonora, Mexico, 2006-2008
We document distribution of breeding least terns (Sternula antillarum) in northern Sonora, Mexico, 2006-2008. We report breeding activity at six sites with active colonies, including three previously undocumented colonies.
Authors
Alyssa Rosemartin, Charles van Riper
Detection of tamarisk defoliation by the northern tamarisk beetle based on multitemporal Landsat 5 thematic mapper imagery Detection of tamarisk defoliation by the northern tamarisk beetle based on multitemporal Landsat 5 thematic mapper imagery
The spread of tamarisk (Tamarix spp., also known as saltcedar) is a significant ecological disturbance in western North America and has long been targeted for control, leading to the importation of the northern tamarisk beetle (Diorhabda carinulata) as a biological control agent. Following its initial release along the Colorado River near Moab, Utah in 2004, the beetle has successfully...
Authors
Ran Meng, Philip E. Dennison, Levi R. Jamison, Charles van Riper, Pamela Nager, Kevin R. Hultine, Dan W. Bean, Tom Dudley
Science and Products
Filter Total Items: 135
Challenge theme 1: Understanding and preserving ecological resources: Chapter 3 in United States-Mexican Borderlands: Facing tomorrow's challenges through USGS science Challenge theme 1: Understanding and preserving ecological resources: Chapter 3 in United States-Mexican Borderlands: Facing tomorrow's challenges through USGS science
The notable biodiversity within the United States–Mexican border region is driven by the wide variety of natural landscapes in the area and its biologically unique transition zone of habitats for xeric, temperate, and subtropical species. Six diverse ecoregions cover the length of the border (fig. 3–1): California Coastal Sage, Chaparral, and Oak Woodlands; Sonoran Desert; Madrean...
Authors
J. Bruce Moring, Diana M. Papoulias, Charles van Riper
Desert fires fueled by native annual forbs: Effects of fire on communities of plants and birds in the Lower Sonoran Desert of Arizona Desert fires fueled by native annual forbs: Effects of fire on communities of plants and birds in the Lower Sonoran Desert of Arizona
In 2005, fire ignited by humans swept from Yuma Proving Grounds into Kofa National Wildlife Refuge, Arizona, burning ca. 9,255 ha of Wilderness Area. Fuels were predominantly the native forb Plantago ovata. Large fires at low elevations were rare in the 19th and 20th centuries, and fires fueled by native vegetation are undocumented in the southwestern deserts. We estimated the area...
Authors
Todd C. Esque, Robert H. Webb, Cynthia S.A. Wallace, Charles van Riper, Chris McCreedy, Lindsay A. Smythe
U.S. Geological Survey ecosystems science strategy—Advancing discovery and application through collaboration U.S. Geological Survey ecosystems science strategy—Advancing discovery and application through collaboration
Executive Summary Ecosystem science is critical to making informed decisions about natural resources that can sustain our Nation’s economic and environmental well-being. Resource managers and policymakers are faced with countless decisions each year at local, regional, and national levels on issues as diverse as renewable and nonrenewable energy development, agriculture, forestry, water...
Authors
Byron K. Williams, G. Lynn Wingard, Gary Brewer, James E. Cloern, Guy Gelfenbaum, Robert B. Jacobson, Jeffrey L. Kershner, Anthony D. McGuire, James D. Nichols, Carl D. Shapiro, Charles van Riper, Robin P. White
Tamarisk in riparian woodlands: A bird’s eye view Tamarisk in riparian woodlands: A bird’s eye view
This chapter presents a “bird's eye” view of tamarisk and examines some issues surrounding the management of tamarisk in riparian woodlands. The focus on birds is based on the fact that they are a relatively well-studied group that can provide important insights into the role of tamarisk in riparian ecosystems. Because the decline of native riparian habitat occurred concurrently with the...
Authors
Mark K. Sogge, Eben H. Paxton, Charles van Riper
Breeding colonies of least terns (Sternula antillarum) in northern Sonora, Mexico, 2006-2008 Breeding colonies of least terns (Sternula antillarum) in northern Sonora, Mexico, 2006-2008
We document distribution of breeding least terns (Sternula antillarum) in northern Sonora, Mexico, 2006-2008. We report breeding activity at six sites with active colonies, including three previously undocumented colonies.
Authors
Alyssa Rosemartin, Charles van Riper
Detection of tamarisk defoliation by the northern tamarisk beetle based on multitemporal Landsat 5 thematic mapper imagery Detection of tamarisk defoliation by the northern tamarisk beetle based on multitemporal Landsat 5 thematic mapper imagery
The spread of tamarisk (Tamarix spp., also known as saltcedar) is a significant ecological disturbance in western North America and has long been targeted for control, leading to the importation of the northern tamarisk beetle (Diorhabda carinulata) as a biological control agent. Following its initial release along the Colorado River near Moab, Utah in 2004, the beetle has successfully...
Authors
Ran Meng, Philip E. Dennison, Levi R. Jamison, Charles van Riper, Pamela Nager, Kevin R. Hultine, Dan W. Bean, Tom Dudley