Richard J Camp, PhD
Specialty: Quantitative ecology; abundance and demographic modeling; avian ecology and conservation
Research Interests: Status and trend estimation; Bayesian inference; hierarchical modeling; spatial and temporal modeling; population dynamics modeling
Personal Interests: Running, bicycling, beer brewing and family
Education and Certifications
Ph.D. 2020 Statistics, University of St Andrews, St Andrews, Scotland
M.S. 1995 Wildlife Biology, Colorado State University, Fort Collins, CO
B.S. 1991 Wildlife Management, University of Minnesota, Minneapolis, MN
Science and Products
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Forest Bird Distribution, Density and Trends in the Ka'u Region of Hawai'i Island Forest Bird Distribution, Density and Trends in the Ka'u Region of Hawai'i Island
An accurate and current measure of population status and trend is necessary for conservation and management efforts. Scott and Kepler (1985) provided a comprehensive review of the status of native Hawaiian birds based on the extensive Hawaii Forest Bird Survey (HFBS) of the main islands (Scott et al. 1986). At that time, they documented declining populations and decreasing ranges for...
Authors
P. Marcos Gorresen, Richard J. Camp, Thane K. Pratt
Long-term population monitoring: Lessons learned from an endangered passerine in Hawai‘i Long-term population monitoring: Lessons learned from an endangered passerine in Hawai‘i
Obtaining reliable population estimates is crucial to monitoring endangered species and developing recovery strategies. The palila (Loxioides bailleui) is an endangered seed-eating Hawaiian honeycreeper restricted to the subalpine forests of Mauna Kea, a volcano on the island of Hawai‘i, USA. The species is vulnerable to extinction primarily because >90% of the population is concentrated...
Authors
Luanne Johnson, Richard J. Camp, Kevin W. Brinck, Paul C. Banko
Hawaii Forest Bird Interagency Database Project: Collecting, Understanding, and Sharing Population Data on Hawaiian Forest Birds Hawaii Forest Bird Interagency Database Project: Collecting, Understanding, and Sharing Population Data on Hawaiian Forest Birds
The forest birds of the Hawaiian Islands are distinguished by the diversity of endemic forms derived from a small number of ancestral colonists. However, the avifauna has been decimated by human activities both before and after Western contact. At least 71 species or subspecies disappeared before the arrival of Capt. James Cook in 1778, and an additional 24 went extinct after 1778, of...
Authors
Thane K. Pratt, Bethany L. Woodworth, Richard J. Camp, P. Marcos Gorresen
Ecology of a population of subsidized predators: Common ravens in the central Mojave Desert, California Ecology of a population of subsidized predators: Common ravens in the central Mojave Desert, California
Human subsidies have resulted in the rapid growth of populations of common ravens (Corvus corax) in the Mojave Desert. This is a management concern because ravens prey on threatened desert tortoises (Gopherus agassizii). We conducted weekly counts for 29 months at 10 sites on the US Army's National Training Center, Fort Irwin, California to evaluate factors affecting the distribution of...
Authors
W.I. Boarman, M.A. Patten, R.J. Camp, S.J. Collis
Population trends of Mariana Crow Corvus kubaryi on Rota, Commonwealth of the Northern Mariana Islands Population trends of Mariana Crow Corvus kubaryi on Rota, Commonwealth of the Northern Mariana Islands
Endemic to the islands of Guam and Rota in the Mariana Islands, Mariana Crow Corvus kubaryi is the only corvid in Micronesia. Currently, it survives on Guam only because of translocation of individuals from Rota (1999-2003). Island-wide surveys in 1982 and 1995 on Rota yielded population estimates of 1,348 and 592 respectively, indicating a 56% decrease in only 13 years. A sharp decline...
Authors
S. Plentovich, J.M. Morton, J. Bart, R.J. Camp, M. Lusk, N. Johnson, E. VanderWerf
Problems with sampling desert tortoises: A simulation analysis based on field data Problems with sampling desert tortoises: A simulation analysis based on field data
The desert tortoise (Gopherus agassizii) was listed as a U.S. threatened species in 1990 based largely on population declines inferred from mark-recapture surveys of 2.59-km2 (1-mi2) plots. Since then, several census methods have been proposed and tested, but all methods still pose logistical or statistical difficulties. We conducted computer simulations using actual tortoise location...
Authors
J.E. Freilich, R.J. Camp, J.J. Duda, A.E. Karl
Science and Products
Filter Total Items: 14
No Result Found
Filter Total Items: 100
Forest Bird Distribution, Density and Trends in the Ka'u Region of Hawai'i Island Forest Bird Distribution, Density and Trends in the Ka'u Region of Hawai'i Island
An accurate and current measure of population status and trend is necessary for conservation and management efforts. Scott and Kepler (1985) provided a comprehensive review of the status of native Hawaiian birds based on the extensive Hawaii Forest Bird Survey (HFBS) of the main islands (Scott et al. 1986). At that time, they documented declining populations and decreasing ranges for...
Authors
P. Marcos Gorresen, Richard J. Camp, Thane K. Pratt
Long-term population monitoring: Lessons learned from an endangered passerine in Hawai‘i Long-term population monitoring: Lessons learned from an endangered passerine in Hawai‘i
Obtaining reliable population estimates is crucial to monitoring endangered species and developing recovery strategies. The palila (Loxioides bailleui) is an endangered seed-eating Hawaiian honeycreeper restricted to the subalpine forests of Mauna Kea, a volcano on the island of Hawai‘i, USA. The species is vulnerable to extinction primarily because >90% of the population is concentrated...
Authors
Luanne Johnson, Richard J. Camp, Kevin W. Brinck, Paul C. Banko
Hawaii Forest Bird Interagency Database Project: Collecting, Understanding, and Sharing Population Data on Hawaiian Forest Birds Hawaii Forest Bird Interagency Database Project: Collecting, Understanding, and Sharing Population Data on Hawaiian Forest Birds
The forest birds of the Hawaiian Islands are distinguished by the diversity of endemic forms derived from a small number of ancestral colonists. However, the avifauna has been decimated by human activities both before and after Western contact. At least 71 species or subspecies disappeared before the arrival of Capt. James Cook in 1778, and an additional 24 went extinct after 1778, of...
Authors
Thane K. Pratt, Bethany L. Woodworth, Richard J. Camp, P. Marcos Gorresen
Ecology of a population of subsidized predators: Common ravens in the central Mojave Desert, California Ecology of a population of subsidized predators: Common ravens in the central Mojave Desert, California
Human subsidies have resulted in the rapid growth of populations of common ravens (Corvus corax) in the Mojave Desert. This is a management concern because ravens prey on threatened desert tortoises (Gopherus agassizii). We conducted weekly counts for 29 months at 10 sites on the US Army's National Training Center, Fort Irwin, California to evaluate factors affecting the distribution of...
Authors
W.I. Boarman, M.A. Patten, R.J. Camp, S.J. Collis
Population trends of Mariana Crow Corvus kubaryi on Rota, Commonwealth of the Northern Mariana Islands Population trends of Mariana Crow Corvus kubaryi on Rota, Commonwealth of the Northern Mariana Islands
Endemic to the islands of Guam and Rota in the Mariana Islands, Mariana Crow Corvus kubaryi is the only corvid in Micronesia. Currently, it survives on Guam only because of translocation of individuals from Rota (1999-2003). Island-wide surveys in 1982 and 1995 on Rota yielded population estimates of 1,348 and 592 respectively, indicating a 56% decrease in only 13 years. A sharp decline...
Authors
S. Plentovich, J.M. Morton, J. Bart, R.J. Camp, M. Lusk, N. Johnson, E. VanderWerf
Problems with sampling desert tortoises: A simulation analysis based on field data Problems with sampling desert tortoises: A simulation analysis based on field data
The desert tortoise (Gopherus agassizii) was listed as a U.S. threatened species in 1990 based largely on population declines inferred from mark-recapture surveys of 2.59-km2 (1-mi2) plots. Since then, several census methods have been proposed and tested, but all methods still pose logistical or statistical difficulties. We conducted computer simulations using actual tortoise location...
Authors
J.E. Freilich, R.J. Camp, J.J. Duda, A.E. Karl