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Detection probabilities and site occupancy estimates for amphibians at Okefenokee National Wildlife Refuge

American Midland Naturalist

By:
, , , ,
DOI: 10.1674/0003-0031(2006)155[0149:DPASOE]2.0.CO;2

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Abstract

We conducted an amphibian inventory at Okefenokee National Wildlife Refuge from August 2000 to June 2002 as part of the U.S. Department of the Interior's national Amphibian Research and Monitoring Initiative. Nineteen species of amphibians (15 anurans and 4 caudates) were documented within the Refuge, including one protected species, the Gopher Frog Rana capito. We also collected 1 y of monitoring data for amphibian populations and incorporated the results into the inventory. Detection probabilities and site occupancy estimates for four species, the Pinewoods Treefrog (Hyla femoralis), Pig Frog (Rana grylio), Southern Leopard Frog (R. sphenocephala) and Carpenter Frog (R. virgatipes) are presented here. Detection probabilities observed in this study indicate that spring and summer surveys offer the best opportunity to detect these species in the Refuge. Results of the inventory suggest that substantial changes may have occurred in the amphibian fauna within and adjacent to the swamp. However, monitoring the amphibian community of Okefenokee Swamp will prove difficult because of the logistical challenges associated with a rigorous statistical assessment of status and trends.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Detection probabilities and site occupancy estimates for amphibians at Okefenokee National Wildlife Refuge
Series title:
American Midland Naturalist
DOI:
10.1674/0003-0031(2006)155[0149:DPASOE]2.0.CO;2
Volume
155
Issue:
1
Year Published:
2006
Language:
English
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
First page:
149
Last page:
161
Number of Pages:
13