Patricia K Haggerty (Former Employee)
Science and Products
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Population viability assessment of native fish species in the Pacific Northwest accounting for instream conditions of water temperature and streamflow permanence Population viability assessment of native fish species in the Pacific Northwest accounting for instream conditions of water temperature and streamflow permanence
This data release contains geospatial representations of population viability analysis (PVA) of 23 species of Pacific Northwest non-salmonid fishes. The analysis evaluated long term species persistence (~100 years) based on species distribution models that combined 1) modeled climate, 2) instream conditions, and 3) presence/absence fish data based on species needs and current climate...
Species distribution models and model performance evaluations of twenty-four fishes native to Pacific Northwest US Species distribution models and model performance evaluations of twenty-four fishes native to Pacific Northwest US
This data release provides spatial data for species distribution models developed for 24 stream fishes native to the Pacific Northwest, USA and associated model evaluation metrics used to determine the best supported model. These models support a larger analysis for understanding native stream fish vulnerability in the region, specifically population viability analyses built to determine...
Juvenile snowy egret (Egretta thula) locations in the Carson and Humboldt River systems, 2002-2004 Juvenile snowy egret (Egretta thula) locations in the Carson and Humboldt River systems, 2002-2004
Data from a Nevada telemetry study extending 1997-2006 research on historical mercury contamination on snowy egrets (Egretta thula) up to ~ 20 days of age.
Drought-related responses of stream flow, climate, and vegetation productivity from the Donner und Blitzen watershed, Great Basin Desert, USA (1988-2020) Drought-related responses of stream flow, climate, and vegetation productivity from the Donner und Blitzen watershed, Great Basin Desert, USA (1988-2020)
Indicators of climatic, hydrologic, and ecological drought responses in water-related terrestrial and aquatic conditions within a single catchment in the northwestern Great Basin Desert and its associated stream network were developed from stream flow, climate and remote sensing sources for the time period of 1988 to 2020.
Airborne Thermal Infrared and High-resolution True-color Imagery and Longitudinal Profiles of Stream Temperatures, Upper Donner und Blitzen River Basin, Oregon, August 2020 Airborne Thermal Infrared and High-resolution True-color Imagery and Longitudinal Profiles of Stream Temperatures, Upper Donner und Blitzen River Basin, Oregon, August 2020
This dataset includes georeferenced, high-resolution, airborne thermal infrared (TIR) and high-resolution true-color imagery, a polyline shapefile of the channel centerline, a polyline shapefile with TIR sample points for longitudinal stream temperature profiles, and a tabular file with longitudinal stream temperature profiles for the Donner und Blitzen River and its tributaries, Oregon...
Forest stands and LiDAR derived model estimates of marbled murrelet (Brachyramphus marmoratus) occupancy in the Coos Bay BLM District, Southwestern Oregon Forest stands and LiDAR derived model estimates of marbled murrelet (Brachyramphus marmoratus) occupancy in the Coos Bay BLM District, Southwestern Oregon
We used murrelet occupancy data collected by the Bureau of Land Management Coos Bay District and canopy metrics calculated from discrete return airborne LiDAR data to fit a logistic regression model predicting the probability of occupancy. Our final model for stand-level occupancy included distance to coast and 5 LiDAR-derived variables describing canopy structure. This dataset is a...
Air and stream temperature and pressure for HJ Andrews Experimental Forest, Western Oregon, 2020 Air and stream temperature and pressure for HJ Andrews Experimental Forest, Western Oregon, 2020
This dataset includes temperature and pressure data from 26 sites in the HJ Andrews Experimental Forest in western Oregon. Stream and Air data loggers were deployed in June of 2020 and downloaded in October 2020. The HJ_Andrews_Temperature file contains temperature data (in C) by logger serial number, site, and usage for the study period. The HJ_Andrews_Pressure file contains pressure...
Long-distance movements of non-migratory golden eagles in western North America, 2007-2017 Long-distance movements of non-migratory golden eagles in western North America, 2007-2017
We studied >500 golden eagles tracked by telemetry over a 10-year period in western North America, of which 160 engaged in non-routine, long-distance (> 300 km) movements. We identified spatial and temporal correlates of those movements at both small and large scales, and we quantified movement timing and direction. We further tested which age and sex classes of eagles were more likely...
Capture-mark-recapture data for Oregon spotted frogs (Rana pretiosa) along the Deschutes River, Oregon, 2016-2019 Capture-mark-recapture data for Oregon spotted frogs (Rana pretiosa) along the Deschutes River, Oregon, 2016-2019
This dataset contains information from capture-mark-recapture sampling of Oregon spotted frogs (Rana pretiosa) conducted 2016-2019 by USGS as part of a study relating R. pretiosa survival and abundance to wetland inundation in the upper Deschutes River. Data consist of site, survey, habitat, and species detection covariates, as well as 10 years of hydrological and drought metrics used to...
Riparian Final Vegclass. Olympic National Park NRCA Westside Rivers Riparian Vegetation Project (2016) Riparian Final Vegclass. Olympic National Park NRCA Westside Rivers Riparian Vegetation Project (2016)
Beschta and Ripple (2012) assert that increased elk populations in the Olympic National Park due to extirpation of wolves in the 1920s has led to a reduction in riparian vegetation. They hypothesize that a decrease in this vegetation has led to an increase in erosion and undercutting of large conifer trees along the river banks, causing woody debris in the river, which in turn impacts...
Estimated Probabilities from Lidar Models for Marbled Murrelet (Brachyramphus marmoratus) Occupancy in Forest Vegetation Stands in the Siuslaw National Forest, Oregon Estimated Probabilities from Lidar Models for Marbled Murrelet (Brachyramphus marmoratus) Occupancy in Forest Vegetation Stands in the Siuslaw National Forest, Oregon
We developed a LiDAR-based habitat model for the threatened Marbled Murrelet (MAMU) in the Siuslaw National Forest, Oregon, using a two-step approach. First, we tested the applicability of the LiDAR-based model developed for the Coos Bay District of the Bureau of Land Management (BLM) to the Siuslaw N.F. In the second step, we tested alternative habitat models developed with forest...
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Filter Total Items: 13
Interpreting long-distance movements of non-migratory golden eagles: Prospecting and nomadism? Interpreting long-distance movements of non-migratory golden eagles: Prospecting and nomadism?
Movements by animals can serve different functions and occur over a variety of spatial and temporal scales. Routine movement types, such as residency (localized movements) and migration, have been well studied. However, nonroutine movement types, such as dispersal, prospecting, and nomadism, are less well understood. Documenting these rarely detected events requires tracking large...
Authors
Sharon Poessel, Brian Woodbridge, Brian W. Smith, Robert K. Murphy, Bryan E Bedrosian, Douglas A. Bell, David Bittner, Peter H. Bloom, Ross H. Crandall, Robert Domenech, Robert N. Fisher, Patricia Haggerty, Steven J. Slater, Jeff A. Tracey, James W. Watson, Todd E. Katzner
Demography of the Oregon spotted frog along a hydrologically modified river Demography of the Oregon spotted frog along a hydrologically modified river
Altered flow regimes can contribute to dissociation between life history strategies and environmental conditions, leading to reduced persistence reported for many wildlife populations inhabiting regulated rivers. The Oregon spotted frog (Rana pretiosa) is a threatened species occurring in floodplains, ponds, and wetlands in the Pacific Northwest with a core range in Oregon, USA. All life...
Authors
Jennifer Rowe, Adam Duarte, Christopher Pearl, Brome McCreary, Patricia Haggerty, John Jones, Michael J. Adams
Tree mortality in blue oak woodland during extreme drought in Sequoia National Park, California Tree mortality in blue oak woodland during extreme drought in Sequoia National Park, California
Blue oak woodlands in California have been a focus of conservation concern for many years. Numerous studies have found that existing seedling and sapling numbers are inadequate to sustain current populations, and recent work has suggested that blue oak woodlands might be particularly vulnerable to a warming climate. California has recently experienced a drought of historically...
Authors
Adrian J. Das, Nicholas J. Ampersee, Anne Hopkins Pfaff, Nathan L. Stephenson, Tedmund J Swiecki, Elizabeth A Bernhardt, Patricia Haggerty, Koren R. Nydick
Removal of cattle grazing correlates with increases in vegetation productivity and in abundance of imperiled breeding birds Removal of cattle grazing correlates with increases in vegetation productivity and in abundance of imperiled breeding birds
Livestock grazing is the most prevalent land use practice in the western United States and a widespread cause of degradation of riparian vegetation. Riparian areas provide high-quality habitat for many species of declining migratory breeding birds. We analyzed changes in vegetation and bird abundance at a wildlife refuge in southeastern Oregon over 24 years, following cessation of 120...
Authors
Sharon Poessel, Joan Hagar, Patricia Haggerty, Todd E. Katzner
Modeling habitat for Marbled Murrelets on the Siuslaw National Forest, Oregon, using lidar data Modeling habitat for Marbled Murrelets on the Siuslaw National Forest, Oregon, using lidar data
Habitat models using lidar-derived variables that quantify fine-scale variation in vegetation structure can improve the accuracy of occupancy estimates for canopy-dwelling species over models that use variables derived from other remote sensing techniques. However, the ability of models developed at such a fine spatial scale to maintain accuracy at regional or larger spatial scales has...
Authors
Joan C. Hagar, Ramiro Aragon, Patricia Haggerty, Jeff P. Hollenbeck
Mercury and drought along the lower Carson River, Nevada: IV. Snowy egret post-fledging dispersal, timing of migration and survival, 2002–2004 Mercury and drought along the lower Carson River, Nevada: IV. Snowy egret post-fledging dispersal, timing of migration and survival, 2002–2004
This telemetry study is an extension of our 1997–2006 research on historical mercury contamination on snowy egrets (Egretta thula) up to ~ 20 days of age. Findings from initial studies at the mercury-contaminated Carson River colony at Lahontan Reservoir (LR) and a similar-sized reference (REF) colony on the Humboldt River included mercury-related physiological, biochemical...
Authors
Charles J. Henny, Elwood F. Hill, Robert A. Grove, Nathan Chelgren, Patricia K. Haggerty
USGS lidar science strategy—Mapping the technology to the science USGS lidar science strategy—Mapping the technology to the science
Summary The U.S. Geological Survey (USGS) utilizes light detection and ranging (lidar) and enabling technologies to support many science research activities. Lidar-derived metrics and products have become a fundamental input to complex hydrologic and hydraulic models, flood inundation models, fault detection and geologic mapping, topographic and land-surface mapping, landslide and...
Authors
Jason M. Stoker, John Brock, Christopher E. Soulard, Kernell G. Ries, Larry J. Sugarbaker, Wesley E. Newton, Patricia K. Haggerty, Kathy Lee, John A. Young
Using occupancy models to accommodate uncertainty in the interpretation of aerial photograph data: status of beaver in Central Oregon, USA Using occupancy models to accommodate uncertainty in the interpretation of aerial photograph data: status of beaver in Central Oregon, USA
Beavers (Castor canadensis) influence habitat for many species and pose challenges in developed landscapes. They are increasingly viewed as a cost-efficient means of riparian habitat restoration and water storage. Still, information on their status is rare, particularly in western North America. We used aerial photography to evaluate changes in beaver occupancy between 1942–1968 and 2009...
Authors
Christopher A. Pearl, M. J. Adams, Patricia K. Haggerty, Leslie Urban
North Cascades National Park Service Complex North Cascades National Park Service Complex
Natural Resource Condition Assessments (NRCAs) evaluate current conditions for a subset of natural resources and resource indicators in national parks. NRCAs also report on trends in resource condition (when possible), identify critical data gaps, and characterize a general level of confidence for study findings. The resources and indicators emphasized in a given project depend on the...
Authors
Robert Hoffman, Andrea Woodward, Patricia K. Haggerty, Kurt J. Jenkins, Paul C. Griffin, M. J. Adams, Joan Hagar, Tonnie Cummings, Dan Duriscoe, Karen Kopper, Jon Riedel, Lelaina Marin, Guillaume S. Mauger, Karen Bumbaco, Jeremy S. Littell
Modeling marbled murrelet (Brachyramphus marmoratus) habitat using LiDAR-derived canopy data Modeling marbled murrelet (Brachyramphus marmoratus) habitat using LiDAR-derived canopy data
LiDAR (Light Detection And Ranging) is an emerging remote-sensing tool that can provide fine-scale data describing vertical complexity of vegetation relevant to species that are responsive to forest structure. We used LiDAR data to estimate occupancy probability for the federally threatened marbled murrelet (Brachyramphus marmoratus) in the Oregon Coast Range of the United States. Our...
Authors
Joan C. Hagar, Bianca N.I. Eskelson, Patricia K. Haggerty, S. Kim Nelson, David G. Vesely
Mount Rainier National Park Mount Rainier National Park
Natural Resource Condition Assessments (NRCAs) evaluate current conditions for a subset of natural resources and resource indicators in national parks. NRCAs also report on trends in resource condition (when possible), identify critical data gaps, and characterize a general level of confidence for study findings. The resources and indicators emphasized in a given project depend on the...
Authors
Robert Hoffman, Andrea Woodward, Patricia K. Haggerty, Kurt J. Jenkins, Paul C. Griffin, M. J. Adams, Joan Hagar, Tonnie Cummings, Dan Duriscoe, Karen Kopper, Jon Riedel, Barbara Samora, Lelaina Marin, Guillaume S. Mauger, Karen Bumbaco, Jeremy S. Littell
Golden eagle records from the Midwinter Bald Eagle Survey: information for wind energy management and planning Golden eagle records from the Midwinter Bald Eagle Survey: information for wind energy management and planning
The purpose of this Data Series report is to provide the occasions, locations, and counts when golden eagles were recorded during the annual Midwinter Bald Eagle Surveys. Golden eagles (Aquila chrysaetos) are protected by Federal statutes including the Bald and Golden Eagle Protection Act (BGEPA) (16 USC 668-668c) and the Migratory Bird Treaty Act (MBTA) (16 USC 703-12). The U.S. Fish...
Authors
Wade Eakle, Patti Haggerty, Mark Fuller, Susan L. Phillips
Science and Products
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Population viability assessment of native fish species in the Pacific Northwest accounting for instream conditions of water temperature and streamflow permanence Population viability assessment of native fish species in the Pacific Northwest accounting for instream conditions of water temperature and streamflow permanence
This data release contains geospatial representations of population viability analysis (PVA) of 23 species of Pacific Northwest non-salmonid fishes. The analysis evaluated long term species persistence (~100 years) based on species distribution models that combined 1) modeled climate, 2) instream conditions, and 3) presence/absence fish data based on species needs and current climate...
Species distribution models and model performance evaluations of twenty-four fishes native to Pacific Northwest US Species distribution models and model performance evaluations of twenty-four fishes native to Pacific Northwest US
This data release provides spatial data for species distribution models developed for 24 stream fishes native to the Pacific Northwest, USA and associated model evaluation metrics used to determine the best supported model. These models support a larger analysis for understanding native stream fish vulnerability in the region, specifically population viability analyses built to determine...
Juvenile snowy egret (Egretta thula) locations in the Carson and Humboldt River systems, 2002-2004 Juvenile snowy egret (Egretta thula) locations in the Carson and Humboldt River systems, 2002-2004
Data from a Nevada telemetry study extending 1997-2006 research on historical mercury contamination on snowy egrets (Egretta thula) up to ~ 20 days of age.
Drought-related responses of stream flow, climate, and vegetation productivity from the Donner und Blitzen watershed, Great Basin Desert, USA (1988-2020) Drought-related responses of stream flow, climate, and vegetation productivity from the Donner und Blitzen watershed, Great Basin Desert, USA (1988-2020)
Indicators of climatic, hydrologic, and ecological drought responses in water-related terrestrial and aquatic conditions within a single catchment in the northwestern Great Basin Desert and its associated stream network were developed from stream flow, climate and remote sensing sources for the time period of 1988 to 2020.
Airborne Thermal Infrared and High-resolution True-color Imagery and Longitudinal Profiles of Stream Temperatures, Upper Donner und Blitzen River Basin, Oregon, August 2020 Airborne Thermal Infrared and High-resolution True-color Imagery and Longitudinal Profiles of Stream Temperatures, Upper Donner und Blitzen River Basin, Oregon, August 2020
This dataset includes georeferenced, high-resolution, airborne thermal infrared (TIR) and high-resolution true-color imagery, a polyline shapefile of the channel centerline, a polyline shapefile with TIR sample points for longitudinal stream temperature profiles, and a tabular file with longitudinal stream temperature profiles for the Donner und Blitzen River and its tributaries, Oregon...
Forest stands and LiDAR derived model estimates of marbled murrelet (Brachyramphus marmoratus) occupancy in the Coos Bay BLM District, Southwestern Oregon Forest stands and LiDAR derived model estimates of marbled murrelet (Brachyramphus marmoratus) occupancy in the Coos Bay BLM District, Southwestern Oregon
We used murrelet occupancy data collected by the Bureau of Land Management Coos Bay District and canopy metrics calculated from discrete return airborne LiDAR data to fit a logistic regression model predicting the probability of occupancy. Our final model for stand-level occupancy included distance to coast and 5 LiDAR-derived variables describing canopy structure. This dataset is a...
Air and stream temperature and pressure for HJ Andrews Experimental Forest, Western Oregon, 2020 Air and stream temperature and pressure for HJ Andrews Experimental Forest, Western Oregon, 2020
This dataset includes temperature and pressure data from 26 sites in the HJ Andrews Experimental Forest in western Oregon. Stream and Air data loggers were deployed in June of 2020 and downloaded in October 2020. The HJ_Andrews_Temperature file contains temperature data (in C) by logger serial number, site, and usage for the study period. The HJ_Andrews_Pressure file contains pressure...
Long-distance movements of non-migratory golden eagles in western North America, 2007-2017 Long-distance movements of non-migratory golden eagles in western North America, 2007-2017
We studied >500 golden eagles tracked by telemetry over a 10-year period in western North America, of which 160 engaged in non-routine, long-distance (> 300 km) movements. We identified spatial and temporal correlates of those movements at both small and large scales, and we quantified movement timing and direction. We further tested which age and sex classes of eagles were more likely...
Capture-mark-recapture data for Oregon spotted frogs (Rana pretiosa) along the Deschutes River, Oregon, 2016-2019 Capture-mark-recapture data for Oregon spotted frogs (Rana pretiosa) along the Deschutes River, Oregon, 2016-2019
This dataset contains information from capture-mark-recapture sampling of Oregon spotted frogs (Rana pretiosa) conducted 2016-2019 by USGS as part of a study relating R. pretiosa survival and abundance to wetland inundation in the upper Deschutes River. Data consist of site, survey, habitat, and species detection covariates, as well as 10 years of hydrological and drought metrics used to...
Riparian Final Vegclass. Olympic National Park NRCA Westside Rivers Riparian Vegetation Project (2016) Riparian Final Vegclass. Olympic National Park NRCA Westside Rivers Riparian Vegetation Project (2016)
Beschta and Ripple (2012) assert that increased elk populations in the Olympic National Park due to extirpation of wolves in the 1920s has led to a reduction in riparian vegetation. They hypothesize that a decrease in this vegetation has led to an increase in erosion and undercutting of large conifer trees along the river banks, causing woody debris in the river, which in turn impacts...
Estimated Probabilities from Lidar Models for Marbled Murrelet (Brachyramphus marmoratus) Occupancy in Forest Vegetation Stands in the Siuslaw National Forest, Oregon Estimated Probabilities from Lidar Models for Marbled Murrelet (Brachyramphus marmoratus) Occupancy in Forest Vegetation Stands in the Siuslaw National Forest, Oregon
We developed a LiDAR-based habitat model for the threatened Marbled Murrelet (MAMU) in the Siuslaw National Forest, Oregon, using a two-step approach. First, we tested the applicability of the LiDAR-based model developed for the Coos Bay District of the Bureau of Land Management (BLM) to the Siuslaw N.F. In the second step, we tested alternative habitat models developed with forest...
If you are unable to access or download a product, email fresc_outreach@usgs.gov a request, including the full citation, or call (541) 750-1030.
Filter Total Items: 13
Interpreting long-distance movements of non-migratory golden eagles: Prospecting and nomadism? Interpreting long-distance movements of non-migratory golden eagles: Prospecting and nomadism?
Movements by animals can serve different functions and occur over a variety of spatial and temporal scales. Routine movement types, such as residency (localized movements) and migration, have been well studied. However, nonroutine movement types, such as dispersal, prospecting, and nomadism, are less well understood. Documenting these rarely detected events requires tracking large...
Authors
Sharon Poessel, Brian Woodbridge, Brian W. Smith, Robert K. Murphy, Bryan E Bedrosian, Douglas A. Bell, David Bittner, Peter H. Bloom, Ross H. Crandall, Robert Domenech, Robert N. Fisher, Patricia Haggerty, Steven J. Slater, Jeff A. Tracey, James W. Watson, Todd E. Katzner
Demography of the Oregon spotted frog along a hydrologically modified river Demography of the Oregon spotted frog along a hydrologically modified river
Altered flow regimes can contribute to dissociation between life history strategies and environmental conditions, leading to reduced persistence reported for many wildlife populations inhabiting regulated rivers. The Oregon spotted frog (Rana pretiosa) is a threatened species occurring in floodplains, ponds, and wetlands in the Pacific Northwest with a core range in Oregon, USA. All life...
Authors
Jennifer Rowe, Adam Duarte, Christopher Pearl, Brome McCreary, Patricia Haggerty, John Jones, Michael J. Adams
Tree mortality in blue oak woodland during extreme drought in Sequoia National Park, California Tree mortality in blue oak woodland during extreme drought in Sequoia National Park, California
Blue oak woodlands in California have been a focus of conservation concern for many years. Numerous studies have found that existing seedling and sapling numbers are inadequate to sustain current populations, and recent work has suggested that blue oak woodlands might be particularly vulnerable to a warming climate. California has recently experienced a drought of historically...
Authors
Adrian J. Das, Nicholas J. Ampersee, Anne Hopkins Pfaff, Nathan L. Stephenson, Tedmund J Swiecki, Elizabeth A Bernhardt, Patricia Haggerty, Koren R. Nydick
Removal of cattle grazing correlates with increases in vegetation productivity and in abundance of imperiled breeding birds Removal of cattle grazing correlates with increases in vegetation productivity and in abundance of imperiled breeding birds
Livestock grazing is the most prevalent land use practice in the western United States and a widespread cause of degradation of riparian vegetation. Riparian areas provide high-quality habitat for many species of declining migratory breeding birds. We analyzed changes in vegetation and bird abundance at a wildlife refuge in southeastern Oregon over 24 years, following cessation of 120...
Authors
Sharon Poessel, Joan Hagar, Patricia Haggerty, Todd E. Katzner
Modeling habitat for Marbled Murrelets on the Siuslaw National Forest, Oregon, using lidar data Modeling habitat for Marbled Murrelets on the Siuslaw National Forest, Oregon, using lidar data
Habitat models using lidar-derived variables that quantify fine-scale variation in vegetation structure can improve the accuracy of occupancy estimates for canopy-dwelling species over models that use variables derived from other remote sensing techniques. However, the ability of models developed at such a fine spatial scale to maintain accuracy at regional or larger spatial scales has...
Authors
Joan C. Hagar, Ramiro Aragon, Patricia Haggerty, Jeff P. Hollenbeck
Mercury and drought along the lower Carson River, Nevada: IV. Snowy egret post-fledging dispersal, timing of migration and survival, 2002–2004 Mercury and drought along the lower Carson River, Nevada: IV. Snowy egret post-fledging dispersal, timing of migration and survival, 2002–2004
This telemetry study is an extension of our 1997–2006 research on historical mercury contamination on snowy egrets (Egretta thula) up to ~ 20 days of age. Findings from initial studies at the mercury-contaminated Carson River colony at Lahontan Reservoir (LR) and a similar-sized reference (REF) colony on the Humboldt River included mercury-related physiological, biochemical...
Authors
Charles J. Henny, Elwood F. Hill, Robert A. Grove, Nathan Chelgren, Patricia K. Haggerty
USGS lidar science strategy—Mapping the technology to the science USGS lidar science strategy—Mapping the technology to the science
Summary The U.S. Geological Survey (USGS) utilizes light detection and ranging (lidar) and enabling technologies to support many science research activities. Lidar-derived metrics and products have become a fundamental input to complex hydrologic and hydraulic models, flood inundation models, fault detection and geologic mapping, topographic and land-surface mapping, landslide and...
Authors
Jason M. Stoker, John Brock, Christopher E. Soulard, Kernell G. Ries, Larry J. Sugarbaker, Wesley E. Newton, Patricia K. Haggerty, Kathy Lee, John A. Young
Using occupancy models to accommodate uncertainty in the interpretation of aerial photograph data: status of beaver in Central Oregon, USA Using occupancy models to accommodate uncertainty in the interpretation of aerial photograph data: status of beaver in Central Oregon, USA
Beavers (Castor canadensis) influence habitat for many species and pose challenges in developed landscapes. They are increasingly viewed as a cost-efficient means of riparian habitat restoration and water storage. Still, information on their status is rare, particularly in western North America. We used aerial photography to evaluate changes in beaver occupancy between 1942–1968 and 2009...
Authors
Christopher A. Pearl, M. J. Adams, Patricia K. Haggerty, Leslie Urban
North Cascades National Park Service Complex North Cascades National Park Service Complex
Natural Resource Condition Assessments (NRCAs) evaluate current conditions for a subset of natural resources and resource indicators in national parks. NRCAs also report on trends in resource condition (when possible), identify critical data gaps, and characterize a general level of confidence for study findings. The resources and indicators emphasized in a given project depend on the...
Authors
Robert Hoffman, Andrea Woodward, Patricia K. Haggerty, Kurt J. Jenkins, Paul C. Griffin, M. J. Adams, Joan Hagar, Tonnie Cummings, Dan Duriscoe, Karen Kopper, Jon Riedel, Lelaina Marin, Guillaume S. Mauger, Karen Bumbaco, Jeremy S. Littell
Modeling marbled murrelet (Brachyramphus marmoratus) habitat using LiDAR-derived canopy data Modeling marbled murrelet (Brachyramphus marmoratus) habitat using LiDAR-derived canopy data
LiDAR (Light Detection And Ranging) is an emerging remote-sensing tool that can provide fine-scale data describing vertical complexity of vegetation relevant to species that are responsive to forest structure. We used LiDAR data to estimate occupancy probability for the federally threatened marbled murrelet (Brachyramphus marmoratus) in the Oregon Coast Range of the United States. Our...
Authors
Joan C. Hagar, Bianca N.I. Eskelson, Patricia K. Haggerty, S. Kim Nelson, David G. Vesely
Mount Rainier National Park Mount Rainier National Park
Natural Resource Condition Assessments (NRCAs) evaluate current conditions for a subset of natural resources and resource indicators in national parks. NRCAs also report on trends in resource condition (when possible), identify critical data gaps, and characterize a general level of confidence for study findings. The resources and indicators emphasized in a given project depend on the...
Authors
Robert Hoffman, Andrea Woodward, Patricia K. Haggerty, Kurt J. Jenkins, Paul C. Griffin, M. J. Adams, Joan Hagar, Tonnie Cummings, Dan Duriscoe, Karen Kopper, Jon Riedel, Barbara Samora, Lelaina Marin, Guillaume S. Mauger, Karen Bumbaco, Jeremy S. Littell
Golden eagle records from the Midwinter Bald Eagle Survey: information for wind energy management and planning Golden eagle records from the Midwinter Bald Eagle Survey: information for wind energy management and planning
The purpose of this Data Series report is to provide the occasions, locations, and counts when golden eagles were recorded during the annual Midwinter Bald Eagle Surveys. Golden eagles (Aquila chrysaetos) are protected by Federal statutes including the Bald and Golden Eagle Protection Act (BGEPA) (16 USC 668-668c) and the Migratory Bird Treaty Act (MBTA) (16 USC 703-12). The U.S. Fish...
Authors
Wade Eakle, Patti Haggerty, Mark Fuller, Susan L. Phillips
*Disclaimer: Listing outside positions with professional scientific organizations on this Staff Profile are for informational purposes only and do not constitute an endorsement of those professional scientific organizations or their activities by the USGS, Department of the Interior, or U.S. Government