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John M. Pearce, Ph.D. (Former Employee)

Science and Products

Filter Total Items: 42
Two Black Brant in a wetland near the Colville River Delta

Science Informing the Status and Trends of Migratory Birds

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing decision-making on the status and trends...
By
Ecosystems Mission Area, Species Management Research Program, Alaska Science Center
Science Informing the Status and Trends of Migratory Birds

Science Informing the Status and Trends of Migratory Birds

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing decision-making on the status and trends...
Learn More
A Yellow-billed Loon swimming in a small lake

Science Informing Endangered Species Act Decisions and Recovery Planning

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing Endangered Species Act decisions and...
By
Species Management Research Program, Alaska Science Center
Science Informing Endangered Species Act Decisions and Recovery Planning

Science Informing Endangered Species Act Decisions and Recovery Planning

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing Endangered Species Act decisions and...
Learn More
A satellite tagged Pacific walrus on a piece of sea ice

Science for Oil and Gas Leasing-related Decisions

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing decision-making for oil and gas leasing...
By
Species Management Research Program, Alaska Science Center
Science for Oil and Gas Leasing-related Decisions

Science for Oil and Gas Leasing-related Decisions

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing decision-making for oil and gas leasing...
Learn More
A satellite tagged Pacific walrus on a piece of sea ice

Marine Ecosystems

The USGS conducts research on marine wildlife, habitats, and processes to provide science to inform our partners as they make decisions relative to species status, resource use, and human activities.
By
Ecosystems Mission Area, Land Management Research Program, Species Management Research Program, Alaska Science Center
Marine Ecosystems

Marine Ecosystems

The USGS conducts research on marine wildlife, habitats, and processes to provide science to inform our partners as they make decisions relative to species status, resource use, and human activities.
Learn More
Snow Goose near the Colville River, northern Alaska

Broad-scale Research Conducted Across the 1002 Area and the NPR-A of Alaska

Selected Bibliography of Broad-scale Research Involving USGS and Conducted Across the 1002 Area and the NPR-A of Alaska Compiled as of 12/17/2018
By
Land Management Research Program, Species Management Research Program, Alaska Science Center
Broad-scale Research Conducted Across the 1002 Area and the NPR-A of Alaska

Broad-scale Research Conducted Across the 1002 Area and the NPR-A of Alaska

Selected Bibliography of Broad-scale Research Involving USGS and Conducted Across the 1002 Area and the NPR-A of Alaska Compiled as of 12/17/2018
Learn More
A stream flowing from a small lake on the Arctic Coastal Plain

Research Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area)

Selected Bibliography of Research Involving USGS and Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area) Compiled as of 12/17/2018
By
Species Management Research Program, Alaska Science Center
Research Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area)

Research Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area)

Selected Bibliography of Research Involving USGS and Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area) Compiled as of 12/17/2018
Learn More
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Filter Total Items: 29
No results found.
Filter Total Items: 80

Behavioral vs. molecular sources of conflict between nuclear and mitochondrial DNA: The role of male-biased dispersal in a Holarctic sea duck Behavioral vs. molecular sources of conflict between nuclear and mitochondrial DNA: The role of male-biased dispersal in a Holarctic sea duck

Genetic studies of waterfowl (Anatidae) have observed the full spectrum of mitochondrial (mt) DNA population divergence, from apparent panmixia to deep, reciprocally monophyletic lineages. Yet, these studies often found weak or no nuclear (nu) DNA structure, which was often attributed to male-biased gene flow, a common behaviour within this family. An alternative explanation for this...
Authors
Jeffrey L. Peters, Kimberly A. Bolender, John M. Pearce
By
Ecosystems Mission Area, Alaska Science Center

Glass wool filters for concentrating waterborne viruses and agricultural zoonotic pathogens Glass wool filters for concentrating waterborne viruses and agricultural zoonotic pathogens

The key first step in evaluating pathogen levels in suspected contaminated water is concentration. Concentration methods tend to be specific for a particular pathogen group, for example US Environmental Protection Agency Method 1623 for Giardia and Cryptosporidium1, which means multiple methods are required if the sampling program is targeting more than one pathogen group. Another...
Authors
Hana T. Millen, Jordan C. Gonnering, Ryan K. Berg, Susan K. Spencer, William E. Jokela, John M. Pearce, Jackson S. Borchardt, Mark A. Borchardt
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

Paired serologic and polymerase chain reaction analyses of avian influenza prevalence in Alaskan shorebirds Paired serologic and polymerase chain reaction analyses of avian influenza prevalence in Alaskan shorebirds

Surveillance has revealed low prevalence of avian influenza viruses (AIV) in shorebirds except Ruddy Turnstones (Arenaria interpres) on the North American Atlantic coast. Similarly, of five species of shorebirds surveyed in Alaska in 2010, Ruddy Turnstones had the highest AIV antibody prevalence; prevalence of AIV RNA was low or zero.
Authors
John M. Pearce, Daniel R. Ruthrauff, Jeffrey S. Hall
By
Ecosystems Mission Area, Alaska Science Center, National Wildlife Health Center

SYBR green-based real-time reverse transcription-PCR for typing and subtyping of all hemagglutinin and neuraminidase genes of avian influenza viruses and comparison to standard serological subtyping tests SYBR green-based real-time reverse transcription-PCR for typing and subtyping of all hemagglutinin and neuraminidase genes of avian influenza viruses and comparison to standard serological subtyping tests

Continuing outbreaks of H5N1 highly pathogenic (HP) avian influenza virus (AIV) infections of wild birds and poultry worldwide emphasize the need for global surveillance of wild birds. To support the future surveillance activities, we developed a SYBR green-based, real-time reverse transcriptase PCR (rRT-PCR) for detecting nucleoprotein (NP) genes and subtyping 16 hemagglutinin (HA) and...
Authors
K. Tsukamoto, P.C. Javier, M. Shishido, D. Noguchi, John M. Pearce, H.-M. Kang, O.M. Jeong, Y.-J. Lee, K. Nakanishi, T. Ashizawa
By
Ecosystems Mission Area, Alaska Science Center

Habitat use and movement patterns of Northern Pintails during spring in northern Japan: the importance of agricultural lands Habitat use and movement patterns of Northern Pintails during spring in northern Japan: the importance of agricultural lands

From 2006 to 2009, we marked 198 Northern Pintails (Anas acuta) with satellite transmitters on their wintering areas in Japan to study their migration routes and habitat use in spring staging areas. We hypothesized that the distribution of pintails during spring staging was influenced by patterns of land use and expected that the most frequently used areas would have more agricultural...
Authors
Noriyuki M. Yamaguchi, Jerry W. Hupp, Paul L. Flint, John M. Pearce, Yusuke Shigeta, Tetsuo Shimada, Emiko N. Hiraoka, Hiroyoshi Higuchi
By
Ecosystems Mission Area, Alaska Science Center

Interspecies transmission and limited persistence of low pathogenic avian influenza genomes among Alaska dabbling ducks Interspecies transmission and limited persistence of low pathogenic avian influenza genomes among Alaska dabbling ducks

The reassortment and geographic distribution of low pathogenic avian influenza (LPAI) virus genes are well documented, but little is known about the persistence of intact LPAI genomes among species and locations. To examine persistence of entire LPAI genome constellations in Alaska, we calculated the genetic identities among 161 full-genome LPAI viruses isolated across 4 years from five...
Authors
Andrew B. Reeves, John M. Pearce, Andrew M. Ramey, Brandt W. Meixell, Jonathan A. Runstadler
By
Ecosystems Mission Area, Alaska Science Center

Science and Products

Filter Total Items: 42
Two Black Brant in a wetland near the Colville River Delta

Science Informing the Status and Trends of Migratory Birds

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing decision-making on the status and trends...
By
Ecosystems Mission Area, Species Management Research Program, Alaska Science Center
Science Informing the Status and Trends of Migratory Birds

Science Informing the Status and Trends of Migratory Birds

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing decision-making on the status and trends...
Learn More
A Yellow-billed Loon swimming in a small lake

Science Informing Endangered Species Act Decisions and Recovery Planning

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing Endangered Species Act decisions and...
By
Species Management Research Program, Alaska Science Center
Science Informing Endangered Species Act Decisions and Recovery Planning

Science Informing Endangered Species Act Decisions and Recovery Planning

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing Endangered Species Act decisions and...
Learn More
A satellite tagged Pacific walrus on a piece of sea ice

Science for Oil and Gas Leasing-related Decisions

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing decision-making for oil and gas leasing...
By
Species Management Research Program, Alaska Science Center
Science for Oil and Gas Leasing-related Decisions

Science for Oil and Gas Leasing-related Decisions

Through the Changing Arctic Ecosystems (CAE) Initiative, the U.S. Geological Survey (USGS) is informing key resource management decisions by better understanding how wildlife populations of special interest to the Department of the Interior (DOI) are responding to rapid physical changes in the Arctic. Below are some examples of how CAE research is informing decision-making for oil and gas leasing...
Learn More
A satellite tagged Pacific walrus on a piece of sea ice

Marine Ecosystems

The USGS conducts research on marine wildlife, habitats, and processes to provide science to inform our partners as they make decisions relative to species status, resource use, and human activities.
By
Ecosystems Mission Area, Land Management Research Program, Species Management Research Program, Alaska Science Center
Marine Ecosystems

Marine Ecosystems

The USGS conducts research on marine wildlife, habitats, and processes to provide science to inform our partners as they make decisions relative to species status, resource use, and human activities.
Learn More
Snow Goose near the Colville River, northern Alaska

Broad-scale Research Conducted Across the 1002 Area and the NPR-A of Alaska

Selected Bibliography of Broad-scale Research Involving USGS and Conducted Across the 1002 Area and the NPR-A of Alaska Compiled as of 12/17/2018
By
Land Management Research Program, Species Management Research Program, Alaska Science Center
Broad-scale Research Conducted Across the 1002 Area and the NPR-A of Alaska

Broad-scale Research Conducted Across the 1002 Area and the NPR-A of Alaska

Selected Bibliography of Broad-scale Research Involving USGS and Conducted Across the 1002 Area and the NPR-A of Alaska Compiled as of 12/17/2018
Learn More
A stream flowing from a small lake on the Arctic Coastal Plain

Research Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area)

Selected Bibliography of Research Involving USGS and Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area) Compiled as of 12/17/2018
By
Species Management Research Program, Alaska Science Center
Research Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area)

Research Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area)

Selected Bibliography of Research Involving USGS and Conducted in the Arctic National Wildlife Refuge (ANWR) Coastal Plain (1002 Area) Compiled as of 12/17/2018
Learn More
No Result Found
Filter Total Items: 29
No results found.
Filter Total Items: 80

Behavioral vs. molecular sources of conflict between nuclear and mitochondrial DNA: The role of male-biased dispersal in a Holarctic sea duck Behavioral vs. molecular sources of conflict between nuclear and mitochondrial DNA: The role of male-biased dispersal in a Holarctic sea duck

Genetic studies of waterfowl (Anatidae) have observed the full spectrum of mitochondrial (mt) DNA population divergence, from apparent panmixia to deep, reciprocally monophyletic lineages. Yet, these studies often found weak or no nuclear (nu) DNA structure, which was often attributed to male-biased gene flow, a common behaviour within this family. An alternative explanation for this...
Authors
Jeffrey L. Peters, Kimberly A. Bolender, John M. Pearce
By
Ecosystems Mission Area, Alaska Science Center

Glass wool filters for concentrating waterborne viruses and agricultural zoonotic pathogens Glass wool filters for concentrating waterborne viruses and agricultural zoonotic pathogens

The key first step in evaluating pathogen levels in suspected contaminated water is concentration. Concentration methods tend to be specific for a particular pathogen group, for example US Environmental Protection Agency Method 1623 for Giardia and Cryptosporidium1, which means multiple methods are required if the sampling program is targeting more than one pathogen group. Another...
Authors
Hana T. Millen, Jordan C. Gonnering, Ryan K. Berg, Susan K. Spencer, William E. Jokela, John M. Pearce, Jackson S. Borchardt, Mark A. Borchardt
By
Water Resources Mission Area, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

Paired serologic and polymerase chain reaction analyses of avian influenza prevalence in Alaskan shorebirds Paired serologic and polymerase chain reaction analyses of avian influenza prevalence in Alaskan shorebirds

Surveillance has revealed low prevalence of avian influenza viruses (AIV) in shorebirds except Ruddy Turnstones (Arenaria interpres) on the North American Atlantic coast. Similarly, of five species of shorebirds surveyed in Alaska in 2010, Ruddy Turnstones had the highest AIV antibody prevalence; prevalence of AIV RNA was low or zero.
Authors
John M. Pearce, Daniel R. Ruthrauff, Jeffrey S. Hall
By
Ecosystems Mission Area, Alaska Science Center, National Wildlife Health Center

SYBR green-based real-time reverse transcription-PCR for typing and subtyping of all hemagglutinin and neuraminidase genes of avian influenza viruses and comparison to standard serological subtyping tests SYBR green-based real-time reverse transcription-PCR for typing and subtyping of all hemagglutinin and neuraminidase genes of avian influenza viruses and comparison to standard serological subtyping tests

Continuing outbreaks of H5N1 highly pathogenic (HP) avian influenza virus (AIV) infections of wild birds and poultry worldwide emphasize the need for global surveillance of wild birds. To support the future surveillance activities, we developed a SYBR green-based, real-time reverse transcriptase PCR (rRT-PCR) for detecting nucleoprotein (NP) genes and subtyping 16 hemagglutinin (HA) and...
Authors
K. Tsukamoto, P.C. Javier, M. Shishido, D. Noguchi, John M. Pearce, H.-M. Kang, O.M. Jeong, Y.-J. Lee, K. Nakanishi, T. Ashizawa
By
Ecosystems Mission Area, Alaska Science Center

Habitat use and movement patterns of Northern Pintails during spring in northern Japan: the importance of agricultural lands Habitat use and movement patterns of Northern Pintails during spring in northern Japan: the importance of agricultural lands

From 2006 to 2009, we marked 198 Northern Pintails (Anas acuta) with satellite transmitters on their wintering areas in Japan to study their migration routes and habitat use in spring staging areas. We hypothesized that the distribution of pintails during spring staging was influenced by patterns of land use and expected that the most frequently used areas would have more agricultural...
Authors
Noriyuki M. Yamaguchi, Jerry W. Hupp, Paul L. Flint, John M. Pearce, Yusuke Shigeta, Tetsuo Shimada, Emiko N. Hiraoka, Hiroyoshi Higuchi
By
Ecosystems Mission Area, Alaska Science Center

Interspecies transmission and limited persistence of low pathogenic avian influenza genomes among Alaska dabbling ducks Interspecies transmission and limited persistence of low pathogenic avian influenza genomes among Alaska dabbling ducks

The reassortment and geographic distribution of low pathogenic avian influenza (LPAI) virus genes are well documented, but little is known about the persistence of intact LPAI genomes among species and locations. To examine persistence of entire LPAI genome constellations in Alaska, we calculated the genetic identities among 161 full-genome LPAI viruses isolated across 4 years from five...
Authors
Andrew B. Reeves, John M. Pearce, Andrew M. Ramey, Brandt W. Meixell, Jonathan A. Runstadler
By
Ecosystems Mission Area, Alaska Science Center
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