Richard J Camp
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
Filter Total Items: 70
Current distribution and abundance of Kohala forest birds in Hawai‘i
The Kohala volcano is home to the most spatially isolated population of Hawaiian forest birds on Hawai‘i Island and contains one of the few native bird populations in the state that has not been monitored since the original Hawai‘i Forest Bird Survey (HFBS) in 1979. We surveyed 143 stations across 13 transects in Pu‘u ‘O ‘Umi Natural Area Reserve on Kohala from February through April 2017 and comp
Authors
Keith Burnett, Richard J. Camp, Patrick J. Hart
Population estimates and trends of three Maui Island-endemic Hawaiian Honeycreepers
Population monitoring is critical for informing the management and conservation of rare Hawaiian forest birds. In 2017, we used point-transect distance sampling methods to estimate population densities of birds on Haleakalā Volcano on east Maui island. We estimated the populations and ranges of three island-endemic Hawaiian honeycreepers, including the endangered ‘Ākohekohe (Palmeria dolei), the e
Authors
Seth Judge, Christopher C Warren, Richard J. Camp, Laura K Berthold, Hanna L Mounce, Patrick J. Hart, Ryan J. Monello
Population density, distribution, and trends of landbirds in the National Park of American Samoa, Ta‘ū and Tutuila Units (2011–2018)
The National Park of American Samoa (NPSA) was surveyed for landbirds from June through July, 2018. Surveys were conducted using point-transect distance sampling methods to estimate bird densities. This information provides the second datum in the time-series of landbird monitoring for long-term trends in landbird distribution, density, and abundance within NPSA. The Ta‘ū Unit and Tutuila Unit, ea
Authors
Seth Judge, Richard J. Camp, Visa Vaivai, Patrick J. Hart
Status of endemic reed-warblers of the Mariana Islands, with emphasis on conservation strategies for the endangered Nightingale Reed-warbler
Insular species, particularly birds, experience high levels of speciation and endemism. Similarly, island birds experience extreme levels of extinction. Based on a 2012 taxonomic assessment, historically there were four reed-warbler species in the Mariana Islands, the Guam Reed-warbler Acrocephalus luscinia (Guam), the Nightingale Reed-warbler Acrocephalus hiwae (Saipan and Alamagan), the Aguijuan
Authors
Ann P. Marshall, Fred A Amidon, Richard J. Camp, P. Marcos Gorresen, Paul Radley
Using density surface models to estimate spatio-temporal changes in population densities and trend
Precise measures of population abundance and trend are needed for species conservation; these are most difficult to obtain for rare and rapidly changing populations. We compare uncertainty in densities estimated from spatio–temporal models with that from standard design‐based methods. Spatio–temporal models allow us to target priority areas where, and at times when, a population may most benefit.
Authors
Richard J. Camp, David L Miller, Len Thomas, Steve T. Buckland, Steve J. Kendall
Large-scale tree mortality from Rapid Ohia Death negatively influences avifauna in lower Puna, Hawai‘i Island, USA
‘Ōhi’a lehua (Metrosideros polymorpha) is the principle tree species in forests across the Hawaiian Islands and provides critical foraging and nesting habitat for native passerines. Rapid Ohia Death (ROD), caused by the vascular wilt fungus Ceratocystis lukuohia and the canker pathogen C. huliohia, was first detected in the Puna District of Hawaii Island in 2010. It affects all life stages of ‘ōhi
Authors
Richard J. Camp, Dennis Lapointe, Patrick J. Hart, Daniel E Sedgwick, Lisa K Canale
2017-2018 Palila abundance estimates and trend
The palila (Loxioides bailleui) population was surveyed annually from 1998–2018 on Mauna Kea Volcanoto determine abundance, population trend, and spatial distribution. In the latest surveys, the 2017population was estimated at 1,177−1,813 birds (point estimate: 1,461) and the 2018 population wasestimated at 778−1,420 (point estimate: 1,051). Only two palila were detected outside the core surveyare
Authors
Ayesha S. Genz, Kevin W. Brinck, Richard J. Camp, Paul C. Banko
Density estimation of sound-producing terrestrial animals using single automatic acoustic recorders and distance sampling
Obtaining accurate information on the distribution, density, and abundance of animals is an important first step toward their conservation. Methodological approaches using automatic acoustic recorders for species that communicate acoustically are gaining increased interest because of their advantages over traditional sampling methods. In this study, we created and evaluated a protocol to estimate
Authors
Esther Sebastián-González, Richard J. Camp, Ann M. Tanimoto, Priscilla Monteiro de Oliveira, Bruna Barreto Lima, Tiago A. Marques, Patrick J. Hart
Potential impacts of projected climate change on vegetation-management strategies in Hawai‘i Volcanoes National Park
Climate change is expected to alter the seasonal and annual patterns of rainfall and temperature in the Hawaiian Islands. Land managers and other responsible agencies will need to know how plant-species habitats will change over the next century in order to manage these resources effectively. This issue is a major concern for resource managers at Hawai‘i Volcanoes National Park (HAVO), where curre
Authors
Richard J. Camp, S. Paul Berkowitz, Kevin W. Brink, James D. Jacobi, Rhonda Loh, Jonathan Price, Lucas B. Fortini
Potential impacts of projected climate change on vegetation management in Hawai`i Volcanoes National Park
Climate change will likely alter the seasonal and annual patterns of rainfall and temperature in Hawai`i. This is a major concern for resource managers at Hawai`i Volcanoes National Park where intensely managed Special Ecological Areas (SEAs), focal sites for managing rare and endangered plants, may no longer provide suitable habitat under future climate. Expanding invasive species’ distributions
Authors
Richard J. Camp, Rhonda Loh, S. Paul Berkowitz, Kevin W. Brinck, James D. Jacobi, Jonathan Price, Sierra McDaniel, Lucas B. Fortini
Population estimates of the Endangered Hawaiʻi ʻĀkepa (Loxops coccineus) in different habitats on windward Mauna Loa
Endangered Hawai‘i ʻĀkepas (Loxops coccineus) are endemic to Hawai‘i island, where they occur in five spatially distinct populations. Data concerning the status and population trends of these unique Hawaiian honeycreepers are crucial for assessing the effectiveness of recovery and management actions. In 2016, we used point‐transect distance sampling to estimate the abundance of Hawai‘i ʻĀkepas in
Authors
Seth W. Judge, Richard J. Camp, Patrick J. Hart, Scott T. Kichman
Monitoring Hawaiian biodiversity: Pilot study to assess changes to forest birds and their habitat
Biological diversity, or biodiversity, is the variety and abundance of species in a defined area, and is one of the oldest and most basic descriptions of biological communities. Understanding how populations and communities are structured and change over space and time in response to internal and external forces is a management priority. Effective management practices and conservation strategies d
Authors
P. Marcos Gorresen, Richard J. Camp, Jacqueline Gaudioso, Kevin W. Brinck, Paul Berkowitz, James D. Jacobi
Science and Products
Filter Total Items: 70
Current distribution and abundance of Kohala forest birds in Hawai‘i
The Kohala volcano is home to the most spatially isolated population of Hawaiian forest birds on Hawai‘i Island and contains one of the few native bird populations in the state that has not been monitored since the original Hawai‘i Forest Bird Survey (HFBS) in 1979. We surveyed 143 stations across 13 transects in Pu‘u ‘O ‘Umi Natural Area Reserve on Kohala from February through April 2017 and comp
Authors
Keith Burnett, Richard J. Camp, Patrick J. Hart
Population estimates and trends of three Maui Island-endemic Hawaiian Honeycreepers
Population monitoring is critical for informing the management and conservation of rare Hawaiian forest birds. In 2017, we used point-transect distance sampling methods to estimate population densities of birds on Haleakalā Volcano on east Maui island. We estimated the populations and ranges of three island-endemic Hawaiian honeycreepers, including the endangered ‘Ākohekohe (Palmeria dolei), the e
Authors
Seth Judge, Christopher C Warren, Richard J. Camp, Laura K Berthold, Hanna L Mounce, Patrick J. Hart, Ryan J. Monello
Population density, distribution, and trends of landbirds in the National Park of American Samoa, Ta‘ū and Tutuila Units (2011–2018)
The National Park of American Samoa (NPSA) was surveyed for landbirds from June through July, 2018. Surveys were conducted using point-transect distance sampling methods to estimate bird densities. This information provides the second datum in the time-series of landbird monitoring for long-term trends in landbird distribution, density, and abundance within NPSA. The Ta‘ū Unit and Tutuila Unit, ea
Authors
Seth Judge, Richard J. Camp, Visa Vaivai, Patrick J. Hart
Status of endemic reed-warblers of the Mariana Islands, with emphasis on conservation strategies for the endangered Nightingale Reed-warbler
Insular species, particularly birds, experience high levels of speciation and endemism. Similarly, island birds experience extreme levels of extinction. Based on a 2012 taxonomic assessment, historically there were four reed-warbler species in the Mariana Islands, the Guam Reed-warbler Acrocephalus luscinia (Guam), the Nightingale Reed-warbler Acrocephalus hiwae (Saipan and Alamagan), the Aguijuan
Authors
Ann P. Marshall, Fred A Amidon, Richard J. Camp, P. Marcos Gorresen, Paul Radley
Using density surface models to estimate spatio-temporal changes in population densities and trend
Precise measures of population abundance and trend are needed for species conservation; these are most difficult to obtain for rare and rapidly changing populations. We compare uncertainty in densities estimated from spatio–temporal models with that from standard design‐based methods. Spatio–temporal models allow us to target priority areas where, and at times when, a population may most benefit.
Authors
Richard J. Camp, David L Miller, Len Thomas, Steve T. Buckland, Steve J. Kendall
Large-scale tree mortality from Rapid Ohia Death negatively influences avifauna in lower Puna, Hawai‘i Island, USA
‘Ōhi’a lehua (Metrosideros polymorpha) is the principle tree species in forests across the Hawaiian Islands and provides critical foraging and nesting habitat for native passerines. Rapid Ohia Death (ROD), caused by the vascular wilt fungus Ceratocystis lukuohia and the canker pathogen C. huliohia, was first detected in the Puna District of Hawaii Island in 2010. It affects all life stages of ‘ōhi
Authors
Richard J. Camp, Dennis Lapointe, Patrick J. Hart, Daniel E Sedgwick, Lisa K Canale
2017-2018 Palila abundance estimates and trend
The palila (Loxioides bailleui) population was surveyed annually from 1998–2018 on Mauna Kea Volcanoto determine abundance, population trend, and spatial distribution. In the latest surveys, the 2017population was estimated at 1,177−1,813 birds (point estimate: 1,461) and the 2018 population wasestimated at 778−1,420 (point estimate: 1,051). Only two palila were detected outside the core surveyare
Authors
Ayesha S. Genz, Kevin W. Brinck, Richard J. Camp, Paul C. Banko
Density estimation of sound-producing terrestrial animals using single automatic acoustic recorders and distance sampling
Obtaining accurate information on the distribution, density, and abundance of animals is an important first step toward their conservation. Methodological approaches using automatic acoustic recorders for species that communicate acoustically are gaining increased interest because of their advantages over traditional sampling methods. In this study, we created and evaluated a protocol to estimate
Authors
Esther Sebastián-González, Richard J. Camp, Ann M. Tanimoto, Priscilla Monteiro de Oliveira, Bruna Barreto Lima, Tiago A. Marques, Patrick J. Hart
Potential impacts of projected climate change on vegetation-management strategies in Hawai‘i Volcanoes National Park
Climate change is expected to alter the seasonal and annual patterns of rainfall and temperature in the Hawaiian Islands. Land managers and other responsible agencies will need to know how plant-species habitats will change over the next century in order to manage these resources effectively. This issue is a major concern for resource managers at Hawai‘i Volcanoes National Park (HAVO), where curre
Authors
Richard J. Camp, S. Paul Berkowitz, Kevin W. Brink, James D. Jacobi, Rhonda Loh, Jonathan Price, Lucas B. Fortini
Potential impacts of projected climate change on vegetation management in Hawai`i Volcanoes National Park
Climate change will likely alter the seasonal and annual patterns of rainfall and temperature in Hawai`i. This is a major concern for resource managers at Hawai`i Volcanoes National Park where intensely managed Special Ecological Areas (SEAs), focal sites for managing rare and endangered plants, may no longer provide suitable habitat under future climate. Expanding invasive species’ distributions
Authors
Richard J. Camp, Rhonda Loh, S. Paul Berkowitz, Kevin W. Brinck, James D. Jacobi, Jonathan Price, Sierra McDaniel, Lucas B. Fortini
Population estimates of the Endangered Hawaiʻi ʻĀkepa (Loxops coccineus) in different habitats on windward Mauna Loa
Endangered Hawai‘i ʻĀkepas (Loxops coccineus) are endemic to Hawai‘i island, where they occur in five spatially distinct populations. Data concerning the status and population trends of these unique Hawaiian honeycreepers are crucial for assessing the effectiveness of recovery and management actions. In 2016, we used point‐transect distance sampling to estimate the abundance of Hawai‘i ʻĀkepas in
Authors
Seth W. Judge, Richard J. Camp, Patrick J. Hart, Scott T. Kichman
Monitoring Hawaiian biodiversity: Pilot study to assess changes to forest birds and their habitat
Biological diversity, or biodiversity, is the variety and abundance of species in a defined area, and is one of the oldest and most basic descriptions of biological communities. Understanding how populations and communities are structured and change over space and time in response to internal and external forces is a management priority. Effective management practices and conservation strategies d
Authors
P. Marcos Gorresen, Richard J. Camp, Jacqueline Gaudioso, Kevin W. Brinck, Paul Berkowitz, James D. Jacobi