Individual study: Amphibian community similarity between natural ponds and constructed ponds of multiple types in Daniel Boone National Forest, Kentucky
Denton R.D. (2011) Amphibian community similarity between natural ponds and constructed ponds of multiple types in Daniel Boone National Forest, Kentucky. MSc thesis. Eastern Kentucky University.
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A replicated, site comparison study in 2010 of 14 constructed ridge-top wetlands in a National Forest in Kentucky, USA (Denton 2011, Denton & Richter 2013) found that amphibian species richness was similar, communities different and abundance lower in created compared to natural wetlands. Species richness did not differ significantly in constructed (10) and natural wetlands (12). However, captures were lower in constructed (permanent: 650; ephemeral: 407) compared to natural wetlands (1, 315). Amphibian communities differed significantly between constructed and natural wetlands. Larvae of wood frogs Lithobates sylvaticus and marbled salamanders Ambystoma opacum were almost exclusively found in natural wetlands, whereas large frog species (Lithobates clamitans, L. catesbeianus, L. palustris) and eastern newts Notopthalmus viridescens tended to be in constructed (particularly permanent) wetlands. Wetland size and depth were positively and aquatic vegetation negatively associated with some species. Captures were not affected by wetland age. Constructed wetlands were either permanent damed wetlands (built 1988–2003; n = 7) or ephemeral wetlands with added woody debris (built 2004–2007; n = 7). Five natural wetlands were also monitored. Dip-net sampling was undertaken over three days/wetland/month in May–August 2010.