John T Delaney, PhD
John T. Delaney
Science and Products
Constraints on Aquatic Vegetation and Restoration Potential of Aquatic Vegetation
Aquatic vegetation is a foundational element of life in aquatic systems, providing food and habitat for several species, and aquatic vegetation restoration is a high priority for Mississippi River managers. Understanding why plants grow in certain places, but not others is important for successful restoration efforts. This study evaluated the constraints on aquatic vegetation growth by using...
Workshop: Natural Solutions to Ecological and Economic Problems Caused by Extreme Precipitation Events in the Upper Mississippi River Basin
Future climate conditions in the Upper Mississippi River Basin are projected to include many more extreme precipitation events. These intense periods of rain can lead to flooding of the Mississippi River itself, as well the small streams and rivers that feed it. This flooding presents a challenge for local communities, farmers, small businesses, river users, and the ecosystems and...
Improving the Midwest Climate Change Vulnerability Assessment Tool to Support Regional Climate Adaptation
Climate vulnerability assessments are tools that aid in understanding why specific resources are vulnerable to projected changes in climate. A recently developed online climate vulnerability assessment dashboard (https://www.usgs.gov/apps/CC_Vulnerability/) helps understand where vulnerability is projected to be greatest across watersheds in the Midwest United States (Illinois, Indiana...
Developing a Decision Making and Climate Adaptation Framework for National Wildlife Refuge System Managers in the Midwest
Climate change presents new and compounding challenges to natural resource management. With shifting climate patterns, managers are confronted with difficult decisions on how to minimize climate impacts to habitats, infrastructure, and wildlife populations. Further, managers lack the information needed to make proactive management decisions. To address this problem, this project will...
Vulnerability Assessment and Adaptation Planning for Projected Changes in Water Quality and Quantity for Protected Areas in the Upper Mississippi Watershed
Climate change and the extreme weather associated with it can be a major challenge to landowners and land managers interested in the protection, restoration, recovery, and management of wetlands and wildlife habitats. The Midwest is not only experiencing an increase in average temperatures and precipitation, but also an increase in the frequency of extreme events, such as heat waves and...
Analysis data for reed canarygrass (Phalaris arundinacea) niche modeling in Upper Mississippi River floodplain forest understories Analysis data for reed canarygrass (Phalaris arundinacea) niche modeling in Upper Mississippi River floodplain forest understories
This dataset contains the information used to perform ecological niche modeling for reed canarygrass (Phalaris arundinacea) in floodplain forests of the Upper Mississippi River, USA. We used presence and absence of reed canarygrass from US Army Corps of Engineers forest inventory plots sampled between 2008-2018 as our response variable along with several predictor variables derived from...
Estimates of habitat suitability of reed canarygrass (Phalaris arundinacea) in Upper Mississippi River floodplain forest understories (ver. 2.0, February 2024) Estimates of habitat suitability of reed canarygrass (Phalaris arundinacea) in Upper Mississippi River floodplain forest understories (ver. 2.0, February 2024)
This dataset contains predictions of habitat suitability of reed canarygrass (Phalaris arundinacea) in Upper Mississippi River floodplain forest understories from Pool 3 to Pool 13. Predictions were created using three machine learning algorithms (Bayesian additive regression trees, boosted trees, and random forest). This dataset contains rasters that provide habitat suitability...
Predictions for the presence of submersed aquatic vegetation in the upper Mississippi River, USA, from years 2010-2019 Predictions for the presence of submersed aquatic vegetation in the upper Mississippi River, USA, from years 2010-2019
The datasets are to accompany a manuscript describing the prediction of submersed aquatic vegetation presence and its potential vulnerability and recovery potential. The data and accompanying analysis scripts allow users to run the final random forests predictive model and reproduce the figures reported in the manuscript. Files from several data sources (aqa_2010_lvl3_pct_oute_joined_VEG...
Managing for tomorrow—A climate adaptation decision framework Managing for tomorrow—A climate adaptation decision framework
Climate change presents new and compounding challenges to natural resource management. With changing climate patterns, managers are confronted with difficult decisions on how to minimize climate effects on habitats, infrastructure, and wildlife populations. To support climate adaptation decision making, we first conceptualized an approach that integrates the principles of the resist...
Authors
Kristen Bouska, Joshua Booker, Susan Clark, John Delaney, Josh Eash, Max Post van der Burg, Heidi Roop
Spatial differences in predicted Phalaris arundinacea (reed canarygrass) occurrence in floodplain forest understories Spatial differences in predicted Phalaris arundinacea (reed canarygrass) occurrence in floodplain forest understories
Reed canarygrass (Phalaris arundinacea L.) is one of the most common invaders of floodplains and wetlands in North America. In the Upper Mississippi River floodplain, invasion by reed canarygrass in forest understories can inhibit forest regeneration when gaps form in the overstory. Understanding the distribution of reed canarygrass in forest understories is essential for effective...
Authors
John Delaney, Molly Van Appledorn, Nathan De Jager, Kristen Bouska, Jason Rohweder
Using explainable machine learning methods to evaluate vulnerability and restoration potential of ecosystem state transitions Using explainable machine learning methods to evaluate vulnerability and restoration potential of ecosystem state transitions
Ecosystem state transitions can be ecologically devastating or be a restoration success. State transitions are common within aquatic systems worldwide, especially considering human-mediated changes to land use and water use. We created a transferable conceptual framework to enable multiscale assessments of state resilience and early warnings of state transitions that can inform strategic...
Authors
John Delaney, Danelle Larson
Improving the Midwest Climate Change Vulnerability Assessment Tool to support regional climate adaptation Improving the Midwest Climate Change Vulnerability Assessment Tool to support regional climate adaptation
An online climate vulnerability assessment dashboard was developed in 2021 through collaboration between U.S. Geological Survey (USGS) and U.S. Fish and Wildlife Service (FWS) to support regional climate adaptation efforts. The dashboard included 15 climate change impact metrics (five each from three categories: hydrology, precipitation, and temperature) and five metrics representing...
Authors
John Delaney, Kristen Bouska
Climate change adaptation thinking for managed wetlands Climate change adaptation thinking for managed wetlands
Climate change presents new and ongoing challenges to natural resource management. To confront these challenges effectively, managers need to develop proactive adaptation strategies to prepare for and deal with the effects of climate change. We engaged managers and biologists from several midwestern U.S. Fish and Wildlife Service field stations to understand recent and future climate...
Authors
John Delaney, Kristen Bouska, Josh Eash
Vulnerability assessment and adaptation planning for projected changes in water quality and quantity for protected areas in the upper Midwest Vulnerability assessment and adaptation planning for projected changes in water quality and quantity for protected areas in the upper Midwest
Climate change and the extreme weather associated with it can be a major challenge to natural resource managers charged with the protection, restoration, recovery, and management of wetlands and wildlife habitats. Forecasting the potential impacts of climate changes will be important for decision-makers and land managers seeking to minimize impacts to habitats, infrastructure, and...
Authors
Kristen Bouska, John Delaney
Mapping climate change vulnerability of aquatic-riparian ecosystems using decision-relevant indicators Mapping climate change vulnerability of aquatic-riparian ecosystems using decision-relevant indicators
Climate change has and is projected to continue to alter historical regimes of temperature, precipitation, and hydrology. To assess the vulnerability of climate change from a land management perspective and spatially identify where the most extreme changes are anticipated to occur, we worked in collaboration with land managers to develop a climate change vulnerability map for the...
Authors
John Delaney, Kristen Bouska, Josh Eash, Patricia Heglund, Andrew Allstadt
Eruptive and tectonic history of the Endeavour Segment, Juan de Fuca Ridge, based on AUV mapping data and lava flow ages Eruptive and tectonic history of the Endeavour Segment, Juan de Fuca Ridge, based on AUV mapping data and lava flow ages
High-resolution bathymetric surveys from autonomous underwater vehicles ABE and D. Allan B. were merged to create a coregistered map of 71.7 km2 of the Endeavour Segment of the Juan de Fuca Ridge. Radiocarbon dating of foraminifera in cores from three dives of remotely operated vehicle Doc Ricketts provide minimum eruption ages for 40 lava flows that are combined with the bathymetric...
Authors
David Clague, Brian Dreyer, Jennifer Paduan, Julie Martin, David W Caress, James Gillespie, Deborah Kelley, Hans Thomas, Ryan Portner, John R. Delaney, Thomas Guilderson, Mary L. McGann
Erratum: Geochronology and petrogenesis of MORB from the Juan de Fuca and Gorda ridges by 238U-230Th disequilibrium Erratum: Geochronology and petrogenesis of MORB from the Juan de Fuca and Gorda ridges by 238U-230Th disequilibrium
A highly precise mass spectrometric method of analysis was used to determine238U234U230Th232Th in axial and off-axis basalt glasses from Juan de Fuca (JDF) and Gorda ridges. Initial 230Th activity excesses in the axial samples range from 3 to 38%, but generally lie within a narrow range of 12 to 15%. Secondary alteration effects were evaluated usingδ234U and appear to be negligible...
Authors
S.J. Goldstein, Michael Murrell, D.R. Janecky, John R. Delaney, David Clague
Watershed-based Midwest Climate Change Vulnerability Assessment Tool Watershed-based Midwest Climate Change Vulnerability Assessment Tool
Climate change has and is projected to continue to alter historic regimes of temperature, precipitation, and hydrology.
Science and Products
Constraints on Aquatic Vegetation and Restoration Potential of Aquatic Vegetation
Aquatic vegetation is a foundational element of life in aquatic systems, providing food and habitat for several species, and aquatic vegetation restoration is a high priority for Mississippi River managers. Understanding why plants grow in certain places, but not others is important for successful restoration efforts. This study evaluated the constraints on aquatic vegetation growth by using...
Workshop: Natural Solutions to Ecological and Economic Problems Caused by Extreme Precipitation Events in the Upper Mississippi River Basin
Future climate conditions in the Upper Mississippi River Basin are projected to include many more extreme precipitation events. These intense periods of rain can lead to flooding of the Mississippi River itself, as well the small streams and rivers that feed it. This flooding presents a challenge for local communities, farmers, small businesses, river users, and the ecosystems and...
Improving the Midwest Climate Change Vulnerability Assessment Tool to Support Regional Climate Adaptation
Climate vulnerability assessments are tools that aid in understanding why specific resources are vulnerable to projected changes in climate. A recently developed online climate vulnerability assessment dashboard (https://www.usgs.gov/apps/CC_Vulnerability/) helps understand where vulnerability is projected to be greatest across watersheds in the Midwest United States (Illinois, Indiana...
Developing a Decision Making and Climate Adaptation Framework for National Wildlife Refuge System Managers in the Midwest
Climate change presents new and compounding challenges to natural resource management. With shifting climate patterns, managers are confronted with difficult decisions on how to minimize climate impacts to habitats, infrastructure, and wildlife populations. Further, managers lack the information needed to make proactive management decisions. To address this problem, this project will...
Vulnerability Assessment and Adaptation Planning for Projected Changes in Water Quality and Quantity for Protected Areas in the Upper Mississippi Watershed
Climate change and the extreme weather associated with it can be a major challenge to landowners and land managers interested in the protection, restoration, recovery, and management of wetlands and wildlife habitats. The Midwest is not only experiencing an increase in average temperatures and precipitation, but also an increase in the frequency of extreme events, such as heat waves and...
Analysis data for reed canarygrass (Phalaris arundinacea) niche modeling in Upper Mississippi River floodplain forest understories Analysis data for reed canarygrass (Phalaris arundinacea) niche modeling in Upper Mississippi River floodplain forest understories
This dataset contains the information used to perform ecological niche modeling for reed canarygrass (Phalaris arundinacea) in floodplain forests of the Upper Mississippi River, USA. We used presence and absence of reed canarygrass from US Army Corps of Engineers forest inventory plots sampled between 2008-2018 as our response variable along with several predictor variables derived from...
Estimates of habitat suitability of reed canarygrass (Phalaris arundinacea) in Upper Mississippi River floodplain forest understories (ver. 2.0, February 2024) Estimates of habitat suitability of reed canarygrass (Phalaris arundinacea) in Upper Mississippi River floodplain forest understories (ver. 2.0, February 2024)
This dataset contains predictions of habitat suitability of reed canarygrass (Phalaris arundinacea) in Upper Mississippi River floodplain forest understories from Pool 3 to Pool 13. Predictions were created using three machine learning algorithms (Bayesian additive regression trees, boosted trees, and random forest). This dataset contains rasters that provide habitat suitability...
Predictions for the presence of submersed aquatic vegetation in the upper Mississippi River, USA, from years 2010-2019 Predictions for the presence of submersed aquatic vegetation in the upper Mississippi River, USA, from years 2010-2019
The datasets are to accompany a manuscript describing the prediction of submersed aquatic vegetation presence and its potential vulnerability and recovery potential. The data and accompanying analysis scripts allow users to run the final random forests predictive model and reproduce the figures reported in the manuscript. Files from several data sources (aqa_2010_lvl3_pct_oute_joined_VEG...
Managing for tomorrow—A climate adaptation decision framework Managing for tomorrow—A climate adaptation decision framework
Climate change presents new and compounding challenges to natural resource management. With changing climate patterns, managers are confronted with difficult decisions on how to minimize climate effects on habitats, infrastructure, and wildlife populations. To support climate adaptation decision making, we first conceptualized an approach that integrates the principles of the resist...
Authors
Kristen Bouska, Joshua Booker, Susan Clark, John Delaney, Josh Eash, Max Post van der Burg, Heidi Roop
Spatial differences in predicted Phalaris arundinacea (reed canarygrass) occurrence in floodplain forest understories Spatial differences in predicted Phalaris arundinacea (reed canarygrass) occurrence in floodplain forest understories
Reed canarygrass (Phalaris arundinacea L.) is one of the most common invaders of floodplains and wetlands in North America. In the Upper Mississippi River floodplain, invasion by reed canarygrass in forest understories can inhibit forest regeneration when gaps form in the overstory. Understanding the distribution of reed canarygrass in forest understories is essential for effective...
Authors
John Delaney, Molly Van Appledorn, Nathan De Jager, Kristen Bouska, Jason Rohweder
Using explainable machine learning methods to evaluate vulnerability and restoration potential of ecosystem state transitions Using explainable machine learning methods to evaluate vulnerability and restoration potential of ecosystem state transitions
Ecosystem state transitions can be ecologically devastating or be a restoration success. State transitions are common within aquatic systems worldwide, especially considering human-mediated changes to land use and water use. We created a transferable conceptual framework to enable multiscale assessments of state resilience and early warnings of state transitions that can inform strategic...
Authors
John Delaney, Danelle Larson
Improving the Midwest Climate Change Vulnerability Assessment Tool to support regional climate adaptation Improving the Midwest Climate Change Vulnerability Assessment Tool to support regional climate adaptation
An online climate vulnerability assessment dashboard was developed in 2021 through collaboration between U.S. Geological Survey (USGS) and U.S. Fish and Wildlife Service (FWS) to support regional climate adaptation efforts. The dashboard included 15 climate change impact metrics (five each from three categories: hydrology, precipitation, and temperature) and five metrics representing...
Authors
John Delaney, Kristen Bouska
Climate change adaptation thinking for managed wetlands Climate change adaptation thinking for managed wetlands
Climate change presents new and ongoing challenges to natural resource management. To confront these challenges effectively, managers need to develop proactive adaptation strategies to prepare for and deal with the effects of climate change. We engaged managers and biologists from several midwestern U.S. Fish and Wildlife Service field stations to understand recent and future climate...
Authors
John Delaney, Kristen Bouska, Josh Eash
Vulnerability assessment and adaptation planning for projected changes in water quality and quantity for protected areas in the upper Midwest Vulnerability assessment and adaptation planning for projected changes in water quality and quantity for protected areas in the upper Midwest
Climate change and the extreme weather associated with it can be a major challenge to natural resource managers charged with the protection, restoration, recovery, and management of wetlands and wildlife habitats. Forecasting the potential impacts of climate changes will be important for decision-makers and land managers seeking to minimize impacts to habitats, infrastructure, and...
Authors
Kristen Bouska, John Delaney
Mapping climate change vulnerability of aquatic-riparian ecosystems using decision-relevant indicators Mapping climate change vulnerability of aquatic-riparian ecosystems using decision-relevant indicators
Climate change has and is projected to continue to alter historical regimes of temperature, precipitation, and hydrology. To assess the vulnerability of climate change from a land management perspective and spatially identify where the most extreme changes are anticipated to occur, we worked in collaboration with land managers to develop a climate change vulnerability map for the...
Authors
John Delaney, Kristen Bouska, Josh Eash, Patricia Heglund, Andrew Allstadt
Eruptive and tectonic history of the Endeavour Segment, Juan de Fuca Ridge, based on AUV mapping data and lava flow ages Eruptive and tectonic history of the Endeavour Segment, Juan de Fuca Ridge, based on AUV mapping data and lava flow ages
High-resolution bathymetric surveys from autonomous underwater vehicles ABE and D. Allan B. were merged to create a coregistered map of 71.7 km2 of the Endeavour Segment of the Juan de Fuca Ridge. Radiocarbon dating of foraminifera in cores from three dives of remotely operated vehicle Doc Ricketts provide minimum eruption ages for 40 lava flows that are combined with the bathymetric...
Authors
David Clague, Brian Dreyer, Jennifer Paduan, Julie Martin, David W Caress, James Gillespie, Deborah Kelley, Hans Thomas, Ryan Portner, John R. Delaney, Thomas Guilderson, Mary L. McGann
Erratum: Geochronology and petrogenesis of MORB from the Juan de Fuca and Gorda ridges by 238U-230Th disequilibrium Erratum: Geochronology and petrogenesis of MORB from the Juan de Fuca and Gorda ridges by 238U-230Th disequilibrium
A highly precise mass spectrometric method of analysis was used to determine238U234U230Th232Th in axial and off-axis basalt glasses from Juan de Fuca (JDF) and Gorda ridges. Initial 230Th activity excesses in the axial samples range from 3 to 38%, but generally lie within a narrow range of 12 to 15%. Secondary alteration effects were evaluated usingδ234U and appear to be negligible...
Authors
S.J. Goldstein, Michael Murrell, D.R. Janecky, John R. Delaney, David Clague
Watershed-based Midwest Climate Change Vulnerability Assessment Tool Watershed-based Midwest Climate Change Vulnerability Assessment Tool
Climate change has and is projected to continue to alter historic regimes of temperature, precipitation, and hydrology.