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Hardin Waddle, Ph.D.

Hardin Waddle currently works as a research ecologist for the USGS, where he serves as the principal investigator for the south-central region of the Amphibian Research and Monitoring Initiative (ARMI). His research interests include population ecology and conservation of amphibians and reptiles, primarily in the wetlands and swamps of the southeastern United States. 

EDUCATION

Ph.D., Wildlife Ecology, University of Florida, 2006

M.S. Biology, Florida International University, 2000

B.S., Wildlife Science, Auburn University, 1996

Science and Products

Filter Total Items: 19
Image: Wood Duck (Aix sponsa)

Forecasting the Effects of Land-Use and Climate Change on Wildlife Communities and Habitats in the Lower Mississippi Valley

This project built on an existing regional conservation partnership to use the most recent downscaled climate model projections to forecast the likely impacts of climate change to species and ecosystems in the Lower Mississippi Valley (LMV). The objective of this work was to develop and test ecological and biological models to facilitate regional adaptive management of wildlife resources...
By
Climate Adaptation Science Centers
Forecasting the Effects of Land-Use and Climate Change on Wildlife Communities and Habitats in the Lower Mississippi Valley

Forecasting the Effects of Land-Use and Climate Change on Wildlife Communities and Habitats in the Lower Mississippi Valley

This project built on an existing regional conservation partnership to use the most recent downscaled climate model projections to forecast the likely impacts of climate change to species and ecosystems in the Lower Mississippi Valley (LMV). The objective of this work was to develop and test ecological and biological models to facilitate regional adaptive management of wildlife resources and the
Learn More
Filter Total Items: 27

Amphibian monitoring data collected from Indiana hardwood forests, 2015-2016 Amphibian monitoring data collected from Indiana hardwood forests, 2015-2016

This data set contains information on detections of amphibians at four bottomland hardwood restoration sites in northeastern Indiana in 2015 and 2016. Amphibian communities were surveyed using four different methods - automated recording units, diurnal visual encounter surveys along transects, nocturnal transect surveys, and amphibian rapid assessments. The data set contains three tables...
By
Columbia Environmental Research Center

Data from a national survey for the amphibian chytrid fungus Batrachochytrium salamandrivorans (ver. 2.0, Nov 2024) Data from a national survey for the amphibian chytrid fungus Batrachochytrium salamandrivorans (ver. 2.0, Nov 2024)

This dataset provides the results of a national survey of the conterminous U.S. for the salamander chytrid fungus Batrachochytrium salamandrivorans (Bsal) conducted by the U.S. Geological Survey Amphibian Research and Monitoring Initiative from May 2014 to August 2017. Sites were sampled by capturing amphibians by hand or by traps or nets that were then swabbed individually using methods...
By
Wetland and Aquatic Research Center

Body measurements of the exotic invasive Cuban treefrog (Osteopilus septentrionalis) in Louisiana Body measurements of the exotic invasive Cuban treefrog (Osteopilus septentrionalis) in Louisiana

This dataset provides location and standard measurements of captured Cuban Treefrogs from the Audubon Park and Zoo area of New Orleans, Louisiana.
By
Wetland and Aquatic Research Center

Computer automated frog vocalization results from Picayune Strand State Forest, Florida 2011-2012 Computer automated frog vocalization results from Picayune Strand State Forest, Florida 2011-2012

This dataset includes the results of a computer automated anuran vocalization recognition analysis of audio recordings made at Picayune Strand State Forest in 2011 and 2012. The audio files were scanned for 11 species of frogs and toads using the commercially available software program Song Scope (ver. 4.1.3). All detections by the software are listed here along with a "result" field...
By
Wetland and Aquatic Research Center

Bd and Bsal prevalence in Gulf Coast waterdogs captured from St. Tammany Parish, Louisiana, in 2015 Bd and Bsal prevalence in Gulf Coast waterdogs captured from St. Tammany Parish, Louisiana, in 2015

The dataset includes information on all 76 Gulf Coast Waterdogs captured including sex and size information along with the results of the tests for the two fungal pathogens.
By
Wetland and Aquatic Research Center

Herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume I, Everglades National Park Herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume I, Everglades National Park

The Comprehensive Everglades Restoration Plan (CERP) requires the use of ecological indicators to measure the success of restoration efforts. The Everglades amphibian community is ideal because amphibians are present in all habitats and under all hydrologic regimes. During Everglades restoration, hydrologic patterns will change and the response of ecological indicators will determine...
By
Wetland and Aquatic Research Center
No results found.
Filter Total Items: 76

Dietary niche of three omnivorous turtle species in a northern Florida river: Insights from stable isotope analysis Dietary niche of three omnivorous turtle species in a northern Florida river: Insights from stable isotope analysis

Macrochelys suwanniensis (Suwannee Alligator Snapping Turtle) coexists with 2 other native large omnivorous turtle species (Chelydra serpentina [Snapping Turtle] and Trachemys scripta scripta [Yellow-bellied Slider]) in a 9-km section of the Santa Fe River in northern Florida. A major shift in dominant submersed aquatic vegetation prompted us to quantify trophic position and niche...
Authors
Mathew Denton, Gerald R. Johnston, Travis Thomas, Hardin Waddle, Susan Walls, Kristen Hart
By
Ecosystems Mission Area, Wetland and Aquatic Research Center

Shorebird monitoring using spatially explicit occupancy and abundance Shorebird monitoring using spatially explicit occupancy and abundance

Loss of habitat and human disturbance are major factors in the worldwide decline of shorebird populations, including that of the threatened migratory piping plover (Charadrius melodus). From 2013 to 2018, we conducted land-based surveys of the shorebird community every other week during the peak piping plover season (September to March). We assessed the ability of a thin plate spline...
Authors
Eve Bohnett, Jessica Schulz, Robert C. Dobbs, Thomas Hoctor, Dave Hulse, Bilal Ahmad, Wajid Rashid, Hardin Waddle
By
Ecosystems Mission Area, Wetland and Aquatic Research Center

Burmese pythons in Florida: A synthesis of biology, impacts, and management tools Burmese pythons in Florida: A synthesis of biology, impacts, and management tools

Burmese pythons (Python molurus bivittatus) are native to southeastern Asia, however, there is an established invasive population inhabiting much of southern Florida throughout the Greater Everglades Ecosystem. Pythons have severely impacted native species and ecosystems in Florida and represent one of the most intractable invasive-species management issues across the globe. The...
Authors
Jacquelyn Guzy, Bryan G. Falk, Brian J. Smith, John Willson, Robert Reed, Nicholas Aumen, Michael Avery, Ian A. Bartoszek, Earl Campbell, Michael Cherkiss, Natalie Claunch, Andrea Currylow, Tylan Dean, Jeremy Dixon, Richard Engeman, Sarah Funck, Rebekah Gibble, Kodiak Hengstebeck, John Humphrey, Margaret Hunter, Jillian Josimovich, Jennifer Ketterlin Eckles, Michael Kirkland, Frank J. Mazzotti, Robert McCleery, Melissa Miller, Matthew McCollister, M. Parker, Shannon Pittman, Michael Rochford, Christina Romagosa, Art Roybal, Ray Snow, McKayla Spencer, Hardin Waddle, Amy Yackel Adams, Kristen Hart
By
Ecosystems Mission Area, Fort Collins Science Center, Pacific Island Ecosystems Research Center, Wetland and Aquatic Research Center

Range-wide population projections for Northern Red-Bellied Cooters (Pseudemys rubriventris) Range-wide population projections for Northern Red-Bellied Cooters (Pseudemys rubriventris)

Northern Red-Bellied Cooters (Pseudemys rubriventris) have a disjunct distribution with a relictual population in southeastern Massachusetts and a larger range across the mid-Atlantic United States. The relictual population is currently listed with protections under the U.S. Endangered Species Act but the status of the population in the remainder of the species' range has not been...
Authors
Jillian Fleming, Jennifer Moore, Hardin Waddle, Julien Martin, Evan Campbell Grant
By
Ecosystems Mission Area, Eastern Ecological Science Center, Wetland and Aquatic Research Center

Open removal models with temporary emigration and population dynamics to inform invasive animal management Open removal models with temporary emigration and population dynamics to inform invasive animal management

Removal sampling data are the primary source of monitoring information for many populations (e.g., invasive species, fisheries). Population dynamics, temporary emigration, and imperfect detection are common sources of variation in monitoring data and are key parameters for informing management. We developed two open robust-design removal models for simultaneously modeling population...
Authors
Bradley Udell, Julien Martin, Christina Romagosa, J. Waddle, Fred Johnson, Bryan Falk, Amy Yackel Adams, Sarah Funck, Jennifer Ketterlin Eckles, Eric Suarez, Frank Mazzotti
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, Eastern Ecological Science Center, Fort Collins Science Center, Wetland and Aquatic Research Center

Estimating detection and occupancy of secretive marsh bird species in low and high saline marshes in southwestern Louisiana using automated recording units Estimating detection and occupancy of secretive marsh bird species in low and high saline marshes in southwestern Louisiana using automated recording units

Secretive marsh birds (SMBs) are important indicator species of coastal wetlands but are difficult to detect and monitor. In coastal Louisiana, an important stronghold for these species, climate and hydrological models predict that freshwater and intermediate marshes will expand in the next 50 years, while brackish marshes will shrink. We used a multi-species Bayesian hierarchical...
Authors
Hardin Waddle, Landon Jones, Phillip Vasseur, Clint Jeske
By
Ecosystems Mission Area, Wetland and Aquatic Research Center

Science and Products

Filter Total Items: 19
Image: Wood Duck (Aix sponsa)

Forecasting the Effects of Land-Use and Climate Change on Wildlife Communities and Habitats in the Lower Mississippi Valley

This project built on an existing regional conservation partnership to use the most recent downscaled climate model projections to forecast the likely impacts of climate change to species and ecosystems in the Lower Mississippi Valley (LMV). The objective of this work was to develop and test ecological and biological models to facilitate regional adaptive management of wildlife resources...
By
Climate Adaptation Science Centers
Forecasting the Effects of Land-Use and Climate Change on Wildlife Communities and Habitats in the Lower Mississippi Valley

Forecasting the Effects of Land-Use and Climate Change on Wildlife Communities and Habitats in the Lower Mississippi Valley

This project built on an existing regional conservation partnership to use the most recent downscaled climate model projections to forecast the likely impacts of climate change to species and ecosystems in the Lower Mississippi Valley (LMV). The objective of this work was to develop and test ecological and biological models to facilitate regional adaptive management of wildlife resources and the
Learn More
Filter Total Items: 27

Amphibian monitoring data collected from Indiana hardwood forests, 2015-2016 Amphibian monitoring data collected from Indiana hardwood forests, 2015-2016

This data set contains information on detections of amphibians at four bottomland hardwood restoration sites in northeastern Indiana in 2015 and 2016. Amphibian communities were surveyed using four different methods - automated recording units, diurnal visual encounter surveys along transects, nocturnal transect surveys, and amphibian rapid assessments. The data set contains three tables...
By
Columbia Environmental Research Center

Data from a national survey for the amphibian chytrid fungus Batrachochytrium salamandrivorans (ver. 2.0, Nov 2024) Data from a national survey for the amphibian chytrid fungus Batrachochytrium salamandrivorans (ver. 2.0, Nov 2024)

This dataset provides the results of a national survey of the conterminous U.S. for the salamander chytrid fungus Batrachochytrium salamandrivorans (Bsal) conducted by the U.S. Geological Survey Amphibian Research and Monitoring Initiative from May 2014 to August 2017. Sites were sampled by capturing amphibians by hand or by traps or nets that were then swabbed individually using methods...
By
Wetland and Aquatic Research Center

Body measurements of the exotic invasive Cuban treefrog (Osteopilus septentrionalis) in Louisiana Body measurements of the exotic invasive Cuban treefrog (Osteopilus septentrionalis) in Louisiana

This dataset provides location and standard measurements of captured Cuban Treefrogs from the Audubon Park and Zoo area of New Orleans, Louisiana.
By
Wetland and Aquatic Research Center

Computer automated frog vocalization results from Picayune Strand State Forest, Florida 2011-2012 Computer automated frog vocalization results from Picayune Strand State Forest, Florida 2011-2012

This dataset includes the results of a computer automated anuran vocalization recognition analysis of audio recordings made at Picayune Strand State Forest in 2011 and 2012. The audio files were scanned for 11 species of frogs and toads using the commercially available software program Song Scope (ver. 4.1.3). All detections by the software are listed here along with a "result" field...
By
Wetland and Aquatic Research Center

Bd and Bsal prevalence in Gulf Coast waterdogs captured from St. Tammany Parish, Louisiana, in 2015 Bd and Bsal prevalence in Gulf Coast waterdogs captured from St. Tammany Parish, Louisiana, in 2015

The dataset includes information on all 76 Gulf Coast Waterdogs captured including sex and size information along with the results of the tests for the two fungal pathogens.
By
Wetland and Aquatic Research Center

Herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume I, Everglades National Park Herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume I, Everglades National Park

The Comprehensive Everglades Restoration Plan (CERP) requires the use of ecological indicators to measure the success of restoration efforts. The Everglades amphibian community is ideal because amphibians are present in all habitats and under all hydrologic regimes. During Everglades restoration, hydrologic patterns will change and the response of ecological indicators will determine...
By
Wetland and Aquatic Research Center
No results found.
Filter Total Items: 76

Dietary niche of three omnivorous turtle species in a northern Florida river: Insights from stable isotope analysis Dietary niche of three omnivorous turtle species in a northern Florida river: Insights from stable isotope analysis

Macrochelys suwanniensis (Suwannee Alligator Snapping Turtle) coexists with 2 other native large omnivorous turtle species (Chelydra serpentina [Snapping Turtle] and Trachemys scripta scripta [Yellow-bellied Slider]) in a 9-km section of the Santa Fe River in northern Florida. A major shift in dominant submersed aquatic vegetation prompted us to quantify trophic position and niche...
Authors
Mathew Denton, Gerald R. Johnston, Travis Thomas, Hardin Waddle, Susan Walls, Kristen Hart
By
Ecosystems Mission Area, Wetland and Aquatic Research Center

Shorebird monitoring using spatially explicit occupancy and abundance Shorebird monitoring using spatially explicit occupancy and abundance

Loss of habitat and human disturbance are major factors in the worldwide decline of shorebird populations, including that of the threatened migratory piping plover (Charadrius melodus). From 2013 to 2018, we conducted land-based surveys of the shorebird community every other week during the peak piping plover season (September to March). We assessed the ability of a thin plate spline...
Authors
Eve Bohnett, Jessica Schulz, Robert C. Dobbs, Thomas Hoctor, Dave Hulse, Bilal Ahmad, Wajid Rashid, Hardin Waddle
By
Ecosystems Mission Area, Wetland and Aquatic Research Center

Burmese pythons in Florida: A synthesis of biology, impacts, and management tools Burmese pythons in Florida: A synthesis of biology, impacts, and management tools

Burmese pythons (Python molurus bivittatus) are native to southeastern Asia, however, there is an established invasive population inhabiting much of southern Florida throughout the Greater Everglades Ecosystem. Pythons have severely impacted native species and ecosystems in Florida and represent one of the most intractable invasive-species management issues across the globe. The...
Authors
Jacquelyn Guzy, Bryan G. Falk, Brian J. Smith, John Willson, Robert Reed, Nicholas Aumen, Michael Avery, Ian A. Bartoszek, Earl Campbell, Michael Cherkiss, Natalie Claunch, Andrea Currylow, Tylan Dean, Jeremy Dixon, Richard Engeman, Sarah Funck, Rebekah Gibble, Kodiak Hengstebeck, John Humphrey, Margaret Hunter, Jillian Josimovich, Jennifer Ketterlin Eckles, Michael Kirkland, Frank J. Mazzotti, Robert McCleery, Melissa Miller, Matthew McCollister, M. Parker, Shannon Pittman, Michael Rochford, Christina Romagosa, Art Roybal, Ray Snow, McKayla Spencer, Hardin Waddle, Amy Yackel Adams, Kristen Hart
By
Ecosystems Mission Area, Fort Collins Science Center, Pacific Island Ecosystems Research Center, Wetland and Aquatic Research Center

Range-wide population projections for Northern Red-Bellied Cooters (Pseudemys rubriventris) Range-wide population projections for Northern Red-Bellied Cooters (Pseudemys rubriventris)

Northern Red-Bellied Cooters (Pseudemys rubriventris) have a disjunct distribution with a relictual population in southeastern Massachusetts and a larger range across the mid-Atlantic United States. The relictual population is currently listed with protections under the U.S. Endangered Species Act but the status of the population in the remainder of the species' range has not been...
Authors
Jillian Fleming, Jennifer Moore, Hardin Waddle, Julien Martin, Evan Campbell Grant
By
Ecosystems Mission Area, Eastern Ecological Science Center, Wetland and Aquatic Research Center

Open removal models with temporary emigration and population dynamics to inform invasive animal management Open removal models with temporary emigration and population dynamics to inform invasive animal management

Removal sampling data are the primary source of monitoring information for many populations (e.g., invasive species, fisheries). Population dynamics, temporary emigration, and imperfect detection are common sources of variation in monitoring data and are key parameters for informing management. We developed two open robust-design removal models for simultaneously modeling population...
Authors
Bradley Udell, Julien Martin, Christina Romagosa, J. Waddle, Fred Johnson, Bryan Falk, Amy Yackel Adams, Sarah Funck, Jennifer Ketterlin Eckles, Eric Suarez, Frank Mazzotti
By
Ecosystems Mission Area, Biological Threats and Invasive Species Research Program, Eastern Ecological Science Center, Fort Collins Science Center, Wetland and Aquatic Research Center

Estimating detection and occupancy of secretive marsh bird species in low and high saline marshes in southwestern Louisiana using automated recording units Estimating detection and occupancy of secretive marsh bird species in low and high saline marshes in southwestern Louisiana using automated recording units

Secretive marsh birds (SMBs) are important indicator species of coastal wetlands but are difficult to detect and monitor. In coastal Louisiana, an important stronghold for these species, climate and hydrological models predict that freshwater and intermediate marshes will expand in the next 50 years, while brackish marshes will shrink. We used a multi-species Bayesian hierarchical...
Authors
Hardin Waddle, Landon Jones, Phillip Vasseur, Clint Jeske
By
Ecosystems Mission Area, Wetland and Aquatic Research Center
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