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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

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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).

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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