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
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A new parameterization for estimating co‐occurrence of interacting species A new parameterization for estimating co‐occurrence of interacting species
Models currently used to estimate patterns of species co‐occurrence while accounting for errors in detection of species can be difficult to fit when the effects of covariates on species occurrence probabilities are included. The source of the estimation problems is the particular parameterization used to specify species co‐occurrence probability. We develop a new parameterization for...
Authors
J. Waddle, Robert M. Dorazio, Susan Walls, Kenneth Rice, Jeff Beauchamp, Melinda J. Schuman, Frank J. Mazzotti
Regional estimates of ecological services derived from U.S. Department of Agriculture conservation programs in the Mississippi Alluvial Valley Regional estimates of ecological services derived from U.S. Department of Agriculture conservation programs in the Mississippi Alluvial Valley
The Mississippi Alluvial Valley (MAV) is the Nation?s largest floodplain and this once predominantly forested ecosystem provided significant habitat for a diverse flora and fauna, sequestered carbon in trees and soil, and stored floodwater, sediments, and nutrients within the floodplain. This landscape has been substantially altered by the conversion of nearly 75% of the riparian forests
Authors
Stephen Faulkner, Michael J. Baldwin, Wylie C. Barrow, Hardin Waddle, Bobby Keeland, Susan Walls, Dale James, Tom Moorman
The aquatic turtle assemblage inhabiting a highly altered landscape in southeast Missouri The aquatic turtle assemblage inhabiting a highly altered landscape in southeast Missouri
Turtles are linked to energetic food webs as both consumers of plants and animals and prey for many species. Turtle biomass in freshwater systems can be an order of magnitude greater than that of endotherms. Therefore, declines in freshwater turtle populations can change energy transfer in freshwater systems. Here we report on a mark–recapture study at a lake and adjacent borrow pit in a...
Authors
Brad Glorioso, Allison Vaughn, J. Hardin Waddle
Efficacy of automatic vocalization recognition software for anuran monitoring Efficacy of automatic vocalization recognition software for anuran monitoring
Surveys of vocalizations are a widely used method for monitoring anurans, but it can be difficult to coordinate standardized data collection across a large geographic area. Digital automated recording systems (ARS) offer a low-cost method for obtaining samples of anuran vocalizations, but the number of recordings can easily overwhelm human listeners. We tested Song Scope, an automatic...
Authors
J. Waddle, Tyler Thigpen, Brad Glorioso
Modeling the effect of toe clipping on treefrog survival: Beyond the return rate Modeling the effect of toe clipping on treefrog survival: Beyond the return rate
Some studies have described a negative effect of toe clipping on return rates of marked anurans, but the return rate is limited in that it does not account for heterogeneity of capture probabilities. We used open population mark-recapture models to estimate both apparent survival (ϕ) and the recapture probability (p) of two treefrog species individually marked by clipping 2–4 toes. We...
Authors
J.H. Waddle, K.G. Rice, F.J. Mazzotti, H.F. Percival
Herpetofaunal Inventories of the National Parks of South Florida and the Caribbean: Volume IV. Biscayne National Park Herpetofaunal Inventories of the National Parks of South Florida and the Caribbean: Volume IV. Biscayne National Park
Amphibian declines and extinctions have been documented around the world, often in protected natural areas. Concern for this alarming trend has prompted the U.S. Geological Survey and the National Park Service to document all species of amphibians that occur within U.S. National Parks and to search for any signs that amphibians may be declining. This study, an inventory of amphibian...
Authors
Kenneth Rice, J. Hardin Waddle, Marquette Crockett, Christopher Bugbee, Brian Jeffery, H. Percival
Science and Products
Filter Total Items: 19
Filter Total Items: 27
No Result Found
Filter Total Items: 76
A new parameterization for estimating co‐occurrence of interacting species A new parameterization for estimating co‐occurrence of interacting species
Models currently used to estimate patterns of species co‐occurrence while accounting for errors in detection of species can be difficult to fit when the effects of covariates on species occurrence probabilities are included. The source of the estimation problems is the particular parameterization used to specify species co‐occurrence probability. We develop a new parameterization for...
Authors
J. Waddle, Robert M. Dorazio, Susan Walls, Kenneth Rice, Jeff Beauchamp, Melinda J. Schuman, Frank J. Mazzotti
Regional estimates of ecological services derived from U.S. Department of Agriculture conservation programs in the Mississippi Alluvial Valley Regional estimates of ecological services derived from U.S. Department of Agriculture conservation programs in the Mississippi Alluvial Valley
The Mississippi Alluvial Valley (MAV) is the Nation?s largest floodplain and this once predominantly forested ecosystem provided significant habitat for a diverse flora and fauna, sequestered carbon in trees and soil, and stored floodwater, sediments, and nutrients within the floodplain. This landscape has been substantially altered by the conversion of nearly 75% of the riparian forests
Authors
Stephen Faulkner, Michael J. Baldwin, Wylie C. Barrow, Hardin Waddle, Bobby Keeland, Susan Walls, Dale James, Tom Moorman
The aquatic turtle assemblage inhabiting a highly altered landscape in southeast Missouri The aquatic turtle assemblage inhabiting a highly altered landscape in southeast Missouri
Turtles are linked to energetic food webs as both consumers of plants and animals and prey for many species. Turtle biomass in freshwater systems can be an order of magnitude greater than that of endotherms. Therefore, declines in freshwater turtle populations can change energy transfer in freshwater systems. Here we report on a mark–recapture study at a lake and adjacent borrow pit in a...
Authors
Brad Glorioso, Allison Vaughn, J. Hardin Waddle
Efficacy of automatic vocalization recognition software for anuran monitoring Efficacy of automatic vocalization recognition software for anuran monitoring
Surveys of vocalizations are a widely used method for monitoring anurans, but it can be difficult to coordinate standardized data collection across a large geographic area. Digital automated recording systems (ARS) offer a low-cost method for obtaining samples of anuran vocalizations, but the number of recordings can easily overwhelm human listeners. We tested Song Scope, an automatic...
Authors
J. Waddle, Tyler Thigpen, Brad Glorioso
Modeling the effect of toe clipping on treefrog survival: Beyond the return rate Modeling the effect of toe clipping on treefrog survival: Beyond the return rate
Some studies have described a negative effect of toe clipping on return rates of marked anurans, but the return rate is limited in that it does not account for heterogeneity of capture probabilities. We used open population mark-recapture models to estimate both apparent survival (ϕ) and the recapture probability (p) of two treefrog species individually marked by clipping 2–4 toes. We...
Authors
J.H. Waddle, K.G. Rice, F.J. Mazzotti, H.F. Percival
Herpetofaunal Inventories of the National Parks of South Florida and the Caribbean: Volume IV. Biscayne National Park Herpetofaunal Inventories of the National Parks of South Florida and the Caribbean: Volume IV. Biscayne National Park
Amphibian declines and extinctions have been documented around the world, often in protected natural areas. Concern for this alarming trend has prompted the U.S. Geological Survey and the National Park Service to document all species of amphibians that occur within U.S. National Parks and to search for any signs that amphibians may be declining. This study, an inventory of amphibian...
Authors
Kenneth Rice, J. Hardin Waddle, Marquette Crockett, Christopher Bugbee, Brian Jeffery, H. Percival