Charles Van Riper, III, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 135
Coloration frequencies of male house finches in Hawaii Coloration frequencies of male house finches in Hawaii
No abstract available.
Authors
Charles van Riper, L.T. Hirai
Post-breeding territoriality and foraging behavior in Costa's Hummingbird (Calypte costae) Post-breeding territoriality and foraging behavior in Costa's Hummingbird (Calypte costae)
No abstract available.
Authors
Michael L. Avery, Charles van Riper
Changing nest placement of Hawaiian Common Amakihi during the breeding cycle Changing nest placement of Hawaiian Common Amakihi during the breeding cycle
We studied the nesting behavior of the Common Amakihi (Hemignathus virens) from 1970-1981 on the island of Hawaii to determine if the species alters nest placement over a protracted 9-month breeding season. Birds preferentially chose the southwest quadrant of trees in which to build nests during all phases of the breeding season. It appeared that ambient temperature (Ta) was a...
Authors
Charles van Riper, M. D. Kern, M. K. Sogge
Nests and nest sites of the San Miguel Island Song Sparrow Nests and nest sites of the San Miguel Island Song Sparrow
Nests and nest sites of the San Miguel Island (SMI) Song Sparrow (Melospiza melodia micronyx) are described; nests are compared with those of 16 other races of Song Sparrows. Bush lupins (Lupinus albifrons), coyote brush (Baccharis pilularis) and golden bush (Haplopappus venetus) were the shrubs used most commonly as nest sites by Song Sparrows on SMI. As a result of its location, the...
Authors
Michael D. Kern, Mark K. Sogge, Robert B. Kern, Charles van Riper
Proceedings of the first biennial conference of research in Colorado Plateau National Parks Proceedings of the first biennial conference of research in Colorado Plateau National Parks
The 19 papers in this volume were selected from the 46 presentations given at the First Biennial Conference on Research in Colorado Plateau National Parks. The overall theme for this meeting was research, inventory, and monitoring in National Park Service units on the Colorado Plateau. The conference, held in Flagstaff Arizona, on 22-25 July 1991, was sponsored by the National Park...
Growth and development of thermoregulation in nestling San Miguel Island Song Sparrows Growth and development of thermoregulation in nestling San Miguel Island Song Sparrows
Patterns of growth (reviewed by Ricklefs 1968, 1969; O'Connor 1984) and the development of endothermy (reviewed by Dawson and Hudson 1970, Dunn 1975, Hill and Beaver 1982) have been well-studied in altricial wild birds, especially passerines. But few studies compare grown and thermogenesis in separate populations of the same species. Results of such studies with emberizids varied among...
Authors
Mark K. Sogge, Michael D. Kern, Robert Kern, Charles van Riper
Pathogenicity and epizootiology of avian haematozoa: Plasmodium, Haemoproteus, and Leucocytozoon Pathogenicity and epizootiology of avian haematozoa: Plasmodium, Haemoproteus, and Leucocytozoon
No abstract available.
Authors
C. T. Atkinson, Charles van Riper
Parasite communities in wet and dry forest subpopulations of the Hawaii common amakihi Parasite communities in wet and dry forest subpopulations of the Hawaii common amakihi
No abstract available.
Authors
Charles van Riper
Water-vapor pressure in nests of the San Miguel Island Song Sparrow Water-vapor pressure in nests of the San Miguel Island Song Sparrow
The water-vapor pressure (PN) in nests of the San Miguel Island race of Song Sparrows (Melospiza melodia micronyx) averaged 16 torr, but varied considerable between nests and within individual nests during successive days of incubation. Large daily fluctuations occurred throughout the incubation period and did not parallel concurrent changes in ambien vapor pressure (P1). Daily rates of...
Authors
Michael D. Kern, Mark K. Sogge, Charles van Riper
Comparative susceptibility of Culex tarsalis, a Nopheles franciscanus, and Culiseta inornata (Diptera: Culicidae) to Plasmodium relictum (Haemosporidia: Plasmodiidae) Comparative susceptibility of Culex tarsalis, a Nopheles franciscanus, and Culiseta inornata (Diptera: Culicidae) to Plasmodium relictum (Haemosporidia: Plasmodiidae)
Repeated laboratory attempts failed to infect Culiseta inornata (Williston) and Anopheles franciscanus McCracken with Plasmodium relictum as efficiently as Culex tarsalis Coquillett controls. Of 210 An. franciscanus that imbibed a replete meal from a parasitemic canary, two were found with oocysts and none with sporozoites. Of 112 Cs. inornata similarly fed, seven contained oocysts and...
Authors
Thierry M. Work, Robert K. Washino, Charles van Riper
A comparative analysis of mammal inventory data for California's National Parks A comparative analysis of mammal inventory data for California's National Parks
No abstract available.
Authors
R.R. Cook, J.F. Quinn, Charles van Riper
Science and Products
Filter Total Items: 135
Coloration frequencies of male house finches in Hawaii Coloration frequencies of male house finches in Hawaii
No abstract available.
Authors
Charles van Riper, L.T. Hirai
Post-breeding territoriality and foraging behavior in Costa's Hummingbird (Calypte costae) Post-breeding territoriality and foraging behavior in Costa's Hummingbird (Calypte costae)
No abstract available.
Authors
Michael L. Avery, Charles van Riper
Changing nest placement of Hawaiian Common Amakihi during the breeding cycle Changing nest placement of Hawaiian Common Amakihi during the breeding cycle
We studied the nesting behavior of the Common Amakihi (Hemignathus virens) from 1970-1981 on the island of Hawaii to determine if the species alters nest placement over a protracted 9-month breeding season. Birds preferentially chose the southwest quadrant of trees in which to build nests during all phases of the breeding season. It appeared that ambient temperature (Ta) was a...
Authors
Charles van Riper, M. D. Kern, M. K. Sogge
Nests and nest sites of the San Miguel Island Song Sparrow Nests and nest sites of the San Miguel Island Song Sparrow
Nests and nest sites of the San Miguel Island (SMI) Song Sparrow (Melospiza melodia micronyx) are described; nests are compared with those of 16 other races of Song Sparrows. Bush lupins (Lupinus albifrons), coyote brush (Baccharis pilularis) and golden bush (Haplopappus venetus) were the shrubs used most commonly as nest sites by Song Sparrows on SMI. As a result of its location, the...
Authors
Michael D. Kern, Mark K. Sogge, Robert B. Kern, Charles van Riper
Proceedings of the first biennial conference of research in Colorado Plateau National Parks Proceedings of the first biennial conference of research in Colorado Plateau National Parks
The 19 papers in this volume were selected from the 46 presentations given at the First Biennial Conference on Research in Colorado Plateau National Parks. The overall theme for this meeting was research, inventory, and monitoring in National Park Service units on the Colorado Plateau. The conference, held in Flagstaff Arizona, on 22-25 July 1991, was sponsored by the National Park...
Growth and development of thermoregulation in nestling San Miguel Island Song Sparrows Growth and development of thermoregulation in nestling San Miguel Island Song Sparrows
Patterns of growth (reviewed by Ricklefs 1968, 1969; O'Connor 1984) and the development of endothermy (reviewed by Dawson and Hudson 1970, Dunn 1975, Hill and Beaver 1982) have been well-studied in altricial wild birds, especially passerines. But few studies compare grown and thermogenesis in separate populations of the same species. Results of such studies with emberizids varied among...
Authors
Mark K. Sogge, Michael D. Kern, Robert Kern, Charles van Riper
Pathogenicity and epizootiology of avian haematozoa: Plasmodium, Haemoproteus, and Leucocytozoon Pathogenicity and epizootiology of avian haematozoa: Plasmodium, Haemoproteus, and Leucocytozoon
No abstract available.
Authors
C. T. Atkinson, Charles van Riper
Parasite communities in wet and dry forest subpopulations of the Hawaii common amakihi Parasite communities in wet and dry forest subpopulations of the Hawaii common amakihi
No abstract available.
Authors
Charles van Riper
Water-vapor pressure in nests of the San Miguel Island Song Sparrow Water-vapor pressure in nests of the San Miguel Island Song Sparrow
The water-vapor pressure (PN) in nests of the San Miguel Island race of Song Sparrows (Melospiza melodia micronyx) averaged 16 torr, but varied considerable between nests and within individual nests during successive days of incubation. Large daily fluctuations occurred throughout the incubation period and did not parallel concurrent changes in ambien vapor pressure (P1). Daily rates of...
Authors
Michael D. Kern, Mark K. Sogge, Charles van Riper
Comparative susceptibility of Culex tarsalis, a Nopheles franciscanus, and Culiseta inornata (Diptera: Culicidae) to Plasmodium relictum (Haemosporidia: Plasmodiidae) Comparative susceptibility of Culex tarsalis, a Nopheles franciscanus, and Culiseta inornata (Diptera: Culicidae) to Plasmodium relictum (Haemosporidia: Plasmodiidae)
Repeated laboratory attempts failed to infect Culiseta inornata (Williston) and Anopheles franciscanus McCracken with Plasmodium relictum as efficiently as Culex tarsalis Coquillett controls. Of 210 An. franciscanus that imbibed a replete meal from a parasitemic canary, two were found with oocysts and none with sporozoites. Of 112 Cs. inornata similarly fed, seven contained oocysts and...
Authors
Thierry M. Work, Robert K. Washino, Charles van Riper
A comparative analysis of mammal inventory data for California's National Parks A comparative analysis of mammal inventory data for California's National Parks
No abstract available.
Authors
R.R. Cook, J.F. Quinn, Charles van Riper