John M. Pearce, Ph.D. (Former Employee)
Science and Products
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Post-fledging movements of juvenile Common Mergansers (mergus merganser) in Alaska as inferred by satellite telemetry Post-fledging movements of juvenile Common Mergansers (mergus merganser) in Alaska as inferred by satellite telemetry
We implanted satellite transmitters into eight juvenile Common Mergansers to investigate post-fledging movements from their natal river in southcentral Alaska. Subsequently, they moved widely throughout portions of western and southcentral Alaska up to 750 km from their natal areas during fall and winter months. Transmitters of two birds (one male and one female) continued to send...
Authors
John M. Pearce, Margaret R. Petersen
Nesting biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska Nesting biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska
Lesser Canada Geese (Branta canadensis parvipes) are widespread throughout interior regions of Alaska and Canada, yet there have been no published studies documenting basic aspects of their nesting biology. We conducted a study to determine reproductive parameters of Lesser Canada Geese nesting along the Tanana River near the city of Fairbanks, in interior Alaska. Fieldwork was conducted...
Authors
Craig R. Ely, John M. Pearce, Roger W. Ruess
Prevalence of Influenza A viruses in wild migratory birds in Alaska: Patterns of variation in detection at a crossroads of intercontinental flyways Prevalence of Influenza A viruses in wild migratory birds in Alaska: Patterns of variation in detection at a crossroads of intercontinental flyways
Background. The global spread of the highly pathogenic avian influenza H5N1 virus has stimulated interest in a better understanding of the mechanisms of H5N1 dispersal, including the potential role of migratory birds as carriers. Although wild birds have been found dead during H5N1 outbreaks, evidence suggests that others have survived natural infections, and recent studies have shown...
Authors
S. Ip, Paul L. Flint, J. Christian Franson, Robert J. Dusek, Dirk V. Derksen, Robert E. Gill, Craig R. Ely, John M. Pearce, Richard B. Lanctot, Steven M. Matsuoka, D.B. Irons, J.B. Fischer, R.M. Oates, Margaret R. Petersen, T.F. Fondell, D.A. Rocque, J.C. Pedersen, T.C. Rothe
Genetic evidence of intercontinental movement of avian influenza in a migratory bird: The northern pintail (Anas acuta) Genetic evidence of intercontinental movement of avian influenza in a migratory bird: The northern pintail (Anas acuta)
The role of migratory birds in the movement of the highly pathogenic (HP) avian influenza H5N1 remains a subject of debate. Testing hypotheses regarding intercontinental movement of low pathogenic avian influenza (LPAI) viruses will help evaluate the potential that wild birds could carry Asian-origin strains of HP avian influenza to North America during migration. Previous North American
Authors
A.V. Koehler, John M. Pearce, Paul L. Flint, J. C. Franson, S. Ip
Philopatry: A return to origins Philopatry: A return to origins
The word “philopatry” is a combination of the prefix philo (from the Greekphilos, “beloved”) and the Latin patria, which means “fatherland” or “homeland.” Since the first English-language use of “philopatry” in an ornithological context by Huntington (1951), the term has been applied to two types of site-faithful behavior in birds. Closest to the etymological meaning is the first, “natal
Authors
John M. Pearce
Effects of abdominally implanted radiotransmitters with percutaneous antennas on migration, reproduction, and survival of Canada geese Effects of abdominally implanted radiotransmitters with percutaneous antennas on migration, reproduction, and survival of Canada geese
Abdominally implanted radiotransmitters with percutaneous antennas are increasingly used to monitor movements, survival, and reproduction of waterbirds. However, there has been relatively little assessment of the effects of such radios on avian demographic parameters or migration. We implanted either a 26- or 35-g abdominal transmitter with percutaneous antenna in 198 adult female lesser...
Authors
Jerry W. Hupp, John M. Pearce, Daniel M. Mulcahy, David A. Miller
Science and Products
Filter Total Items: 42
Filter Total Items: 29
No results found.
Filter Total Items: 80
Post-fledging movements of juvenile Common Mergansers (mergus merganser) in Alaska as inferred by satellite telemetry Post-fledging movements of juvenile Common Mergansers (mergus merganser) in Alaska as inferred by satellite telemetry
We implanted satellite transmitters into eight juvenile Common Mergansers to investigate post-fledging movements from their natal river in southcentral Alaska. Subsequently, they moved widely throughout portions of western and southcentral Alaska up to 750 km from their natal areas during fall and winter months. Transmitters of two birds (one male and one female) continued to send...
Authors
John M. Pearce, Margaret R. Petersen
Nesting biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska Nesting biology of Lesser Canada Geese, Branta canadensis parvipes, along the Tanana River, Alaska
Lesser Canada Geese (Branta canadensis parvipes) are widespread throughout interior regions of Alaska and Canada, yet there have been no published studies documenting basic aspects of their nesting biology. We conducted a study to determine reproductive parameters of Lesser Canada Geese nesting along the Tanana River near the city of Fairbanks, in interior Alaska. Fieldwork was conducted...
Authors
Craig R. Ely, John M. Pearce, Roger W. Ruess
Prevalence of Influenza A viruses in wild migratory birds in Alaska: Patterns of variation in detection at a crossroads of intercontinental flyways Prevalence of Influenza A viruses in wild migratory birds in Alaska: Patterns of variation in detection at a crossroads of intercontinental flyways
Background. The global spread of the highly pathogenic avian influenza H5N1 virus has stimulated interest in a better understanding of the mechanisms of H5N1 dispersal, including the potential role of migratory birds as carriers. Although wild birds have been found dead during H5N1 outbreaks, evidence suggests that others have survived natural infections, and recent studies have shown...
Authors
S. Ip, Paul L. Flint, J. Christian Franson, Robert J. Dusek, Dirk V. Derksen, Robert E. Gill, Craig R. Ely, John M. Pearce, Richard B. Lanctot, Steven M. Matsuoka, D.B. Irons, J.B. Fischer, R.M. Oates, Margaret R. Petersen, T.F. Fondell, D.A. Rocque, J.C. Pedersen, T.C. Rothe
Genetic evidence of intercontinental movement of avian influenza in a migratory bird: The northern pintail (Anas acuta) Genetic evidence of intercontinental movement of avian influenza in a migratory bird: The northern pintail (Anas acuta)
The role of migratory birds in the movement of the highly pathogenic (HP) avian influenza H5N1 remains a subject of debate. Testing hypotheses regarding intercontinental movement of low pathogenic avian influenza (LPAI) viruses will help evaluate the potential that wild birds could carry Asian-origin strains of HP avian influenza to North America during migration. Previous North American
Authors
A.V. Koehler, John M. Pearce, Paul L. Flint, J. C. Franson, S. Ip
Philopatry: A return to origins Philopatry: A return to origins
The word “philopatry” is a combination of the prefix philo (from the Greekphilos, “beloved”) and the Latin patria, which means “fatherland” or “homeland.” Since the first English-language use of “philopatry” in an ornithological context by Huntington (1951), the term has been applied to two types of site-faithful behavior in birds. Closest to the etymological meaning is the first, “natal
Authors
John M. Pearce
Effects of abdominally implanted radiotransmitters with percutaneous antennas on migration, reproduction, and survival of Canada geese Effects of abdominally implanted radiotransmitters with percutaneous antennas on migration, reproduction, and survival of Canada geese
Abdominally implanted radiotransmitters with percutaneous antennas are increasingly used to monitor movements, survival, and reproduction of waterbirds. However, there has been relatively little assessment of the effects of such radios on avian demographic parameters or migration. We implanted either a 26- or 35-g abdominal transmitter with percutaneous antenna in 198 adult female lesser...
Authors
Jerry W. Hupp, John M. Pearce, Daniel M. Mulcahy, David A. Miller