Southeast regional and state trends in anuran occupancy from calling survey data (2001-2013) from the North American Amphibian Monitoring Program

Oswaldo Villena Carpio; J. Andrew Royle; Linda Weir; Tasha M. Foreman; Kimberly D. Gazenski; Evan H. Campbell Grant

Southeast regional and state trends in anuran occupancy from calling survey data (2001-2013) from the North American Amphibian Monitoring Program

Herpetological Conservation and Biology

By: Oswaldo Villena Carpio, J. Andrew Royle, Linda Weir, Tasha M. Foreman, Kimberly D. Gazenski, and Evan H. Campbell Grant

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Abstract

We present the first regional trends in anuran occupancy for eight states of the southeastern United States, based on 13 y (2001–2013) of North American Amphibian Monitoring Program (NAAMP) data. The NAAMP is a longterm monitoring program in which observers collect anuran calling observation data at fixed locations along random roadside routes. We assessed occupancy trends for 14 species. We found weak evidence for a general regional pattern of decline in calling anurans within breeding habitats along roads in the southeastern USA over the last 13 y. Two species had positive regional trends with 95% posterior intervals that did not include zero (Hyla cinerea and Pseudacris crucifer). Five other species also showed an increasing trend, while eight species showed a declining trend, although 95% posterior intervals included zero. We also assessed state level trends for 107 species/state combinations. Of these, 14 showed a significant decline and 12 showed a significant increase in occupancy (i.e., credible intervals did not include zero for these 26 trends).

Suggested Citation

Villena Carpio, O., Royle, J., Weir, L., Foreman, T.M., Gazenski, K.D., and Campbell Grant, E., 2016, Southeast regional and state trends in anuran occupancy from calling survey data (2001-2013) from the North American Amphibian Monitoring Program: Herpetological Conservation and Biology, v. 11, no. 2, p. 373-385.

ISSN: 2151-0733 (online)

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Additional publication details
Publication type	Article
Publication Subtype	Journal Article
Title	Southeast regional and state trends in anuran occupancy from calling survey data (2001-2013) from the North American Amphibian Monitoring Program
Series title	Herpetological Conservation and Biology
Volume	11
Issue	2
Year Published	2016
Language	English
Publisher	Partners in Amphibian and Reptile Conservation
Publisher location	Texarkana, TX
Contributing office(s)	Patuxent Wildlife Research Center
First page	373
Last page	385
Country	United States
State	Florida, Georgia, Louisiana, Mississippi, North Carolina, South Carolina, Tennessee, Virginia