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
Filter Total Items: 27
Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume II, Virgin Islands National Park Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume II, Virgin Islands 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...
Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume IV, Biscayne National Park Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume IV, Biscayne 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...
Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume III, Big Cypress National Preserve Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume III, Big Cypress National Preserve
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...
Filter Total Items: 76
Evaluating the effect of expert elicitation techniques on population status assessment in the face of large uncertainty Evaluating the effect of expert elicitation techniques on population status assessment in the face of large uncertainty
Population projection models are important tools for conservation and management. They are often used for population status assessments, for threat analyses, and to predict the consequences of conservation actions. Although conservation decisions should be informed by science, critical decisions are often made with very little information to support decision-making. Conversely...
Authors
Jennifer Moore, Julien Martin, Hardin Waddle, Evan Campbell Grant, Jillian Fleming, Eve Bohnett, Thomas Akre, Donald J. Brown, Michael Jones, Jessica Meck, Kevin Oxenrider, Anthony Tur, Lisabeth Willey, Fred Johnson
Hierarchical models improve the use of alligator abundance as an indicator Hierarchical models improve the use of alligator abundance as an indicator
Indicator species are species which can be monitored as an index to measure the overall health of an ecosystem. Crocodylians have been shown to be good indicators of wetland condition as they respond to changes in hydrology, can be efficiently monitored, and are a key part of ecosystem trophic relationships. Eye shine surveys at night are a standard method used to sample alligators, but...
Authors
Seth Farris, J. Hardin Waddle, Caitlin Hackett, Laura Brandt, Frank J. Mazzotti
Changes in vegetation structure and gopher tortoise population structure after 17 years of restoration management Changes in vegetation structure and gopher tortoise population structure after 17 years of restoration management
We examined a study plot sampled in the Conecuh National Forest of southern Alabama in 1999 and again in 2016 after stand thinning and persistent prescribed fire were used to improve habitat quality. These management activities were designed, in part, to enhance habitat quality for the gopher tortoise (Gopherus polyphemus), a species considered for protection under the Endangered Species...
Authors
Rebecca Pudner, Hardin Waddle, Suzi Mersmann, John Kush, Craig Guyer, Sharon Hermann
Abundance of Gulf Coast Waterdogs (Necturus beyeri) along Bayou Lacombe, Saint Tammany Parish, Louisiana Abundance of Gulf Coast Waterdogs (Necturus beyeri) along Bayou Lacombe, Saint Tammany Parish, Louisiana
Few ecological studies have been conducted on Gulf Coast Waterdogs (Necturus beyeri), and published studies have focused on relatively small stream sections of 125 m to 1.75 km. In 2015, we sampled 25 sites along a 13.4-km stretch of Bayou Lacombe (Saint Tammany Parish, Louisiana, USA) to better understand factors that may influence the distribution of Gulf Coast Waterdogs within streams...
Authors
Brad Glorioso, Hardin Waddle, Lindy Muse, Sidney T Godfrey
Demographic responses to density-dependence by two populations of the Florida Tree Snail, Liguus fasciatus (Gastropoda: Orthalicidae), in Everglades National Park Demographic responses to density-dependence by two populations of the Florida Tree Snail, Liguus fasciatus (Gastropoda: Orthalicidae), in Everglades National Park
During May-October 1996, we captured and individually marked and released Florida Tree Snails, Liguus fasciatus, from two sites, a subclimax hammock and a large isolated wild tamarind tree, in the Long Pine Key region of Everglades National Park. Populations shared the same two dominant morphs, castaneozonatus and. cingulatus, both of which are strong colonizers. Monthly survivorship...
Authors
Walter Meshaka, Kenneth Rice, Oron L. Bass, Hardin Waddle
Widespread Ranavirus and Perkinsea infections in Cuban treefrogs (Osteopilus septentrionalis) invading New Orleans, USA Widespread Ranavirus and Perkinsea infections in Cuban treefrogs (Osteopilus septentrionalis) invading New Orleans, USA
Invasive species can negatively impact ecosystems in numerous ways, including vectoring pathogenic organisms. In amphibians, a lineage globally threatened by multiple pathogens, this spread of disease via invasive species could contribute to declines in native populations. The Cuban Treefrog (Osteopilus septentrionalis) is invasive in the southeastern USA. To assess whether O...
Authors
Net Galt, Matthew Atkinson, Brad Glorioso, Hardin Waddle, Melanie Litton, Anna Savage
Science and Products
Filter Total Items: 19
Filter Total Items: 27
Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume II, Virgin Islands National Park Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume II, Virgin Islands 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...
Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume IV, Biscayne National Park Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume IV, Biscayne 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...
Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume III, Big Cypress National Preserve Data for herpetofaunal inventories of the national parks of South Florida and the Caribbean: Volume III, Big Cypress National Preserve
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...
Filter Total Items: 76
Evaluating the effect of expert elicitation techniques on population status assessment in the face of large uncertainty Evaluating the effect of expert elicitation techniques on population status assessment in the face of large uncertainty
Population projection models are important tools for conservation and management. They are often used for population status assessments, for threat analyses, and to predict the consequences of conservation actions. Although conservation decisions should be informed by science, critical decisions are often made with very little information to support decision-making. Conversely...
Authors
Jennifer Moore, Julien Martin, Hardin Waddle, Evan Campbell Grant, Jillian Fleming, Eve Bohnett, Thomas Akre, Donald J. Brown, Michael Jones, Jessica Meck, Kevin Oxenrider, Anthony Tur, Lisabeth Willey, Fred Johnson
Hierarchical models improve the use of alligator abundance as an indicator Hierarchical models improve the use of alligator abundance as an indicator
Indicator species are species which can be monitored as an index to measure the overall health of an ecosystem. Crocodylians have been shown to be good indicators of wetland condition as they respond to changes in hydrology, can be efficiently monitored, and are a key part of ecosystem trophic relationships. Eye shine surveys at night are a standard method used to sample alligators, but...
Authors
Seth Farris, J. Hardin Waddle, Caitlin Hackett, Laura Brandt, Frank J. Mazzotti
Changes in vegetation structure and gopher tortoise population structure after 17 years of restoration management Changes in vegetation structure and gopher tortoise population structure after 17 years of restoration management
We examined a study plot sampled in the Conecuh National Forest of southern Alabama in 1999 and again in 2016 after stand thinning and persistent prescribed fire were used to improve habitat quality. These management activities were designed, in part, to enhance habitat quality for the gopher tortoise (Gopherus polyphemus), a species considered for protection under the Endangered Species...
Authors
Rebecca Pudner, Hardin Waddle, Suzi Mersmann, John Kush, Craig Guyer, Sharon Hermann
Abundance of Gulf Coast Waterdogs (Necturus beyeri) along Bayou Lacombe, Saint Tammany Parish, Louisiana Abundance of Gulf Coast Waterdogs (Necturus beyeri) along Bayou Lacombe, Saint Tammany Parish, Louisiana
Few ecological studies have been conducted on Gulf Coast Waterdogs (Necturus beyeri), and published studies have focused on relatively small stream sections of 125 m to 1.75 km. In 2015, we sampled 25 sites along a 13.4-km stretch of Bayou Lacombe (Saint Tammany Parish, Louisiana, USA) to better understand factors that may influence the distribution of Gulf Coast Waterdogs within streams...
Authors
Brad Glorioso, Hardin Waddle, Lindy Muse, Sidney T Godfrey
Demographic responses to density-dependence by two populations of the Florida Tree Snail, Liguus fasciatus (Gastropoda: Orthalicidae), in Everglades National Park Demographic responses to density-dependence by two populations of the Florida Tree Snail, Liguus fasciatus (Gastropoda: Orthalicidae), in Everglades National Park
During May-October 1996, we captured and individually marked and released Florida Tree Snails, Liguus fasciatus, from two sites, a subclimax hammock and a large isolated wild tamarind tree, in the Long Pine Key region of Everglades National Park. Populations shared the same two dominant morphs, castaneozonatus and. cingulatus, both of which are strong colonizers. Monthly survivorship...
Authors
Walter Meshaka, Kenneth Rice, Oron L. Bass, Hardin Waddle
Widespread Ranavirus and Perkinsea infections in Cuban treefrogs (Osteopilus septentrionalis) invading New Orleans, USA Widespread Ranavirus and Perkinsea infections in Cuban treefrogs (Osteopilus septentrionalis) invading New Orleans, USA
Invasive species can negatively impact ecosystems in numerous ways, including vectoring pathogenic organisms. In amphibians, a lineage globally threatened by multiple pathogens, this spread of disease via invasive species could contribute to declines in native populations. The Cuban Treefrog (Osteopilus septentrionalis) is invasive in the southeastern USA. To assess whether O...
Authors
Net Galt, Matthew Atkinson, Brad Glorioso, Hardin Waddle, Melanie Litton, Anna Savage