Daniel H Monson, Ph.D. (Former Employee)
Science and Products
Filter Total Items: 16
Intertidal Soft-Sediment Bivalves from Prince William Sound, Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park Intertidal Soft-Sediment Bivalves from Prince William Sound, Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park
These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program and describe bivalve count and size sampling and observations conducted at intertidal soft-sediment sampling sites in the northern Gulf of Alaska. This dataset consists of five comma separated files (.csv): 1) bivalve taxonomy table, 2) bivalve sampling site table, 3) bivalve count table, 4) bivalve size...
Marine Bird and Mammal Survey Data from Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park Marine Bird and Mammal Survey Data from Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park
These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. The dataset is a series of comma separated files exported from a survey software program (DLog, Ford Consulting, Portland, OR). The data consists of date, time, latitude, longitude, species abbreviation, count, and behavior. Each year the observers attempt to sample the same...
SUPERSEDED: Gulf Watch Alaska Nearshore Component: Marine Water Quality, Water Temperature from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2014-2016 SUPERSEDED: Gulf Watch Alaska Nearshore Component: Marine Water Quality, Water Temperature from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2014-2016
This data release has been SUPERSEDED. No data are provided here. Data from Gulf Watch Alaska nearshore water and air temperature sampling data releases have been appended to U.S. Geological Survey data release: https://doi.org/10.5066/F7WH2N3T. This data is part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. The data consists of date, time...
Sea Otter Forage Observations from Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound Sea Otter Forage Observations from Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound
These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore component and a seasonal diet study in Kenai Fjords National Park. This dataset consists of observations made of foraging sea otters (Enhydra lutris). Observers used Questar field model spotting scopes and binoculars to identify prey. Date, local time, dive duration, success, prey type, prey size...
Filter Total Items: 69
Genetic variation in sea otters (Enhydra lutris) from the North Pacific with relevance to the threatened Southwest Alaska Distinct Population Segment Genetic variation in sea otters (Enhydra lutris) from the North Pacific with relevance to the threatened Southwest Alaska Distinct Population Segment
For the sea otter (Enhydra lutris), genetic population structure is an area of research that has not received significant attention, especially in Southwest Alaska where that distinct population segment has been listed as threatened since 2005 pursuant to the U.S. Endangered Species Act. In this study, 501 samples from 14 locations from Prince William Sound, Alaska to the Commander...
Authors
Blair G. Flannery, Ora L. Russ, Michelle St. Martin, William S. Beatty, Kristen Worman, Joel Garlich-Miller, Verena A. Gill, Patrick R. Lemons, Daniel Monson, Kimberly A. Kloecker, Daniel Esler, John Wenburg
Sea otter population collapse in southwest Alaska: Assessing ecological covariates, consequences, and causal factors Sea otter population collapse in southwest Alaska: Assessing ecological covariates, consequences, and causal factors
Sea otter (Enhydra lutris) populations in southwest Alaska declined substantially between about 1990 and the most recent set of surveys in 2015. Here we report changes in the distribution and abundance of sea otters, and covarying patterns in reproduction, mortality, body size and condition, diet and foraging behavior, food availability, health profiles, and exposure to environmental...
Authors
M. Tim Tinker, James L. Bodkin, Lizabeth Bowen, Brenda Ballachey, Gena Bentall, Alexander Burdin, Heather Coletti, George G. Esslinger, Brian B. Hatfield, Michael C. Kenner, Kimberly A. Kloecker, Brenda Konar, A. Keith Miles, Daniel Monson, Michael J. Murray, Ben Weitzman, James A. Estes
Sea otter predator avoidance behavior Sea otter predator avoidance behavior
Predators directly affect their prey as a source of mortality, and prey respond by employing antipredator strategies. Sea otters are a keystone predator within the nearshore community, but higher trophic level avian, terrestrial, and pelagic predators (e.g., bald eagles, brown bears, wolves, white sharks, and killer whales) prey on them. Three antipredator strategies used by sea otters...
Authors
Daniel Monson
Ecosystem response persists after a prolonged marine heatwave Ecosystem response persists after a prolonged marine heatwave
Some of the longest and most comprehensive marine ecosystem monitoring programs were established in the Gulf of Alaska following the environmental disaster of the Exxon Valdez oil spill over 30 years ago. These monitoring programs have been successful in assessing recovery from oil spill impacts, and their continuation decades later has now provided an unparalleled assessment of...
Authors
Robert M. Suryan, Mayumi L. Arimitsu, Heather A. Coletti, Russell R. Hopcroft, Mandy Lindeberg, Steven J. Barbeaux, Sonia Batten, William J. Burt, Mary Anne Bishop, James L. Bodkin, R. Brenner, Robert W. Campbell, Daniel A. Cushing, Seth L. Danielson, Martin W. Dorn, Brie Drummond, Daniel Esler, Thomas S. Gelatt, Dana H. Hanselman, Katrin Iken, David B. Irons, Scott A. Hatch, Stormy Haught, Kris Holderied, David G. Kimmel, Brenda H. Konar, Kathy J. Kuletz, Arthur B. Kettle, Benjamin J. Laurel, John M. Maniscalco, Daniel Monson, Craig O. Matkin, Caitlin McKinstry, John Moran, D. Olsen, John F. Piatt, Wayne A. Palsson, W. Scott Pegau, Lauren A. Rogers, Nora A. Rojek, Anne Schaefer, Ingrid B. Spies, J.M. Straley, Suzanne L. Strom, Marysia Szymkowiak, Kathryn L. Sweeney, Ben P. Weitzman, Ellen M. Yasumiishi, Stephanie Zador
A study of marine temperature variations in the northern Gulf of Alaska across years of marine heatwaves and cold spells A study of marine temperature variations in the northern Gulf of Alaska across years of marine heatwaves and cold spells
We use over 100 in situ and remotely sensed temperature datasets to investigate thermal variability within and across the intertidal nearshore, coastal and offshore waters of the northern Gulf of Alaska. For the years 1970 through 2019 we document a warming trend of 0.24±0.10 °C per decade for the coastal northern shelf (0-250 m depth average) and a Gulf-wide sea surface temperature (SST...
Authors
Seth L. Danielson, Tyler D. Hennon, Daniel Monson, Rob M. Suryan, Rob W. Campbell, Steven J. Baird, Kristine Holderied, Thomas Weingartner
Changes in rocky intertidal community structure during a marine heatwave in the northern Gulf of Alaska Changes in rocky intertidal community structure during a marine heatwave in the northern Gulf of Alaska
Marine heatwaves are global phenomena that can have major impacts on the structure and function of coastal ecosystems. By mid-2014, the Pacific Marine Heatwave (PMH) was evident in intertidal waters of the northern Gulf of Alaska and persisted for multiple years. While offshore marine ecosystems are known to respond to these warmer waters, the response of rocky intertidal ecosystems to...
Authors
Ben Weitzman, Brenda Konar, Katrin Iken, Heather Coletti, Daniel Monson, Robert M. Suryan, Thomas Dean, D. Hondolero, Mandy Lindeberg
Science and Products
Filter Total Items: 16
Intertidal Soft-Sediment Bivalves from Prince William Sound, Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park Intertidal Soft-Sediment Bivalves from Prince William Sound, Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park
These data are part of the Gulf Watch Alaska (GWA) long-term monitoring program and describe bivalve count and size sampling and observations conducted at intertidal soft-sediment sampling sites in the northern Gulf of Alaska. This dataset consists of five comma separated files (.csv): 1) bivalve taxonomy table, 2) bivalve sampling site table, 3) bivalve count table, 4) bivalve size...
Marine Bird and Mammal Survey Data from Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park Marine Bird and Mammal Survey Data from Kachemak Bay, Katmai National Park and Preserve, and Kenai Fjords National Park
These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. The dataset is a series of comma separated files exported from a survey software program (DLog, Ford Consulting, Portland, OR). The data consists of date, time, latitude, longitude, species abbreviation, count, and behavior. Each year the observers attempt to sample the same...
SUPERSEDED: Gulf Watch Alaska Nearshore Component: Marine Water Quality, Water Temperature from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2014-2016 SUPERSEDED: Gulf Watch Alaska Nearshore Component: Marine Water Quality, Water Temperature from Prince William Sound, Katmai National Park and Preserve, and Kenai Fjords National Park, 2014-2016
This data release has been SUPERSEDED. No data are provided here. Data from Gulf Watch Alaska nearshore water and air temperature sampling data releases have been appended to U.S. Geological Survey data release: https://doi.org/10.5066/F7WH2N3T. This data is part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore monitoring component. The data consists of date, time...
Sea Otter Forage Observations from Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound Sea Otter Forage Observations from Kachemak Bay, Katmai National Park and Preserve, Kenai Fjords National Park and Prince William Sound
These data are part of the Gulf Watch Alaska (GWA) long term monitoring program, nearshore component and a seasonal diet study in Kenai Fjords National Park. This dataset consists of observations made of foraging sea otters (Enhydra lutris). Observers used Questar field model spotting scopes and binoculars to identify prey. Date, local time, dive duration, success, prey type, prey size...
Filter Total Items: 69
Genetic variation in sea otters (Enhydra lutris) from the North Pacific with relevance to the threatened Southwest Alaska Distinct Population Segment Genetic variation in sea otters (Enhydra lutris) from the North Pacific with relevance to the threatened Southwest Alaska Distinct Population Segment
For the sea otter (Enhydra lutris), genetic population structure is an area of research that has not received significant attention, especially in Southwest Alaska where that distinct population segment has been listed as threatened since 2005 pursuant to the U.S. Endangered Species Act. In this study, 501 samples from 14 locations from Prince William Sound, Alaska to the Commander...
Authors
Blair G. Flannery, Ora L. Russ, Michelle St. Martin, William S. Beatty, Kristen Worman, Joel Garlich-Miller, Verena A. Gill, Patrick R. Lemons, Daniel Monson, Kimberly A. Kloecker, Daniel Esler, John Wenburg
Sea otter population collapse in southwest Alaska: Assessing ecological covariates, consequences, and causal factors Sea otter population collapse in southwest Alaska: Assessing ecological covariates, consequences, and causal factors
Sea otter (Enhydra lutris) populations in southwest Alaska declined substantially between about 1990 and the most recent set of surveys in 2015. Here we report changes in the distribution and abundance of sea otters, and covarying patterns in reproduction, mortality, body size and condition, diet and foraging behavior, food availability, health profiles, and exposure to environmental...
Authors
M. Tim Tinker, James L. Bodkin, Lizabeth Bowen, Brenda Ballachey, Gena Bentall, Alexander Burdin, Heather Coletti, George G. Esslinger, Brian B. Hatfield, Michael C. Kenner, Kimberly A. Kloecker, Brenda Konar, A. Keith Miles, Daniel Monson, Michael J. Murray, Ben Weitzman, James A. Estes
Sea otter predator avoidance behavior Sea otter predator avoidance behavior
Predators directly affect their prey as a source of mortality, and prey respond by employing antipredator strategies. Sea otters are a keystone predator within the nearshore community, but higher trophic level avian, terrestrial, and pelagic predators (e.g., bald eagles, brown bears, wolves, white sharks, and killer whales) prey on them. Three antipredator strategies used by sea otters...
Authors
Daniel Monson
Ecosystem response persists after a prolonged marine heatwave Ecosystem response persists after a prolonged marine heatwave
Some of the longest and most comprehensive marine ecosystem monitoring programs were established in the Gulf of Alaska following the environmental disaster of the Exxon Valdez oil spill over 30 years ago. These monitoring programs have been successful in assessing recovery from oil spill impacts, and their continuation decades later has now provided an unparalleled assessment of...
Authors
Robert M. Suryan, Mayumi L. Arimitsu, Heather A. Coletti, Russell R. Hopcroft, Mandy Lindeberg, Steven J. Barbeaux, Sonia Batten, William J. Burt, Mary Anne Bishop, James L. Bodkin, R. Brenner, Robert W. Campbell, Daniel A. Cushing, Seth L. Danielson, Martin W. Dorn, Brie Drummond, Daniel Esler, Thomas S. Gelatt, Dana H. Hanselman, Katrin Iken, David B. Irons, Scott A. Hatch, Stormy Haught, Kris Holderied, David G. Kimmel, Brenda H. Konar, Kathy J. Kuletz, Arthur B. Kettle, Benjamin J. Laurel, John M. Maniscalco, Daniel Monson, Craig O. Matkin, Caitlin McKinstry, John Moran, D. Olsen, John F. Piatt, Wayne A. Palsson, W. Scott Pegau, Lauren A. Rogers, Nora A. Rojek, Anne Schaefer, Ingrid B. Spies, J.M. Straley, Suzanne L. Strom, Marysia Szymkowiak, Kathryn L. Sweeney, Ben P. Weitzman, Ellen M. Yasumiishi, Stephanie Zador
A study of marine temperature variations in the northern Gulf of Alaska across years of marine heatwaves and cold spells A study of marine temperature variations in the northern Gulf of Alaska across years of marine heatwaves and cold spells
We use over 100 in situ and remotely sensed temperature datasets to investigate thermal variability within and across the intertidal nearshore, coastal and offshore waters of the northern Gulf of Alaska. For the years 1970 through 2019 we document a warming trend of 0.24±0.10 °C per decade for the coastal northern shelf (0-250 m depth average) and a Gulf-wide sea surface temperature (SST...
Authors
Seth L. Danielson, Tyler D. Hennon, Daniel Monson, Rob M. Suryan, Rob W. Campbell, Steven J. Baird, Kristine Holderied, Thomas Weingartner
Changes in rocky intertidal community structure during a marine heatwave in the northern Gulf of Alaska Changes in rocky intertidal community structure during a marine heatwave in the northern Gulf of Alaska
Marine heatwaves are global phenomena that can have major impacts on the structure and function of coastal ecosystems. By mid-2014, the Pacific Marine Heatwave (PMH) was evident in intertidal waters of the northern Gulf of Alaska and persisted for multiple years. While offshore marine ecosystems are known to respond to these warmer waters, the response of rocky intertidal ecosystems to...
Authors
Ben Weitzman, Brenda Konar, Katrin Iken, Heather Coletti, Daniel Monson, Robert M. Suryan, Thomas Dean, D. Hondolero, Mandy Lindeberg
*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