Individual study: Recovery of amphibian assemblages in restored wetlands in Prairie Canada
Paszkowski C.A., Puchniak A.J. & Gray B.T. (2001) Recovery of amphibian assemblages in restored wetlands in Prairie Canada. Ecological Society of America Annual Meeting Abstracts, 86, 328
This study is summarised as evidence for the intervention(s) shown on the right. The icon shows which synopsis it is relevant to.
A replicated, site comparison study in 1999–2000 of 97 restored wetlands in aspen parkland in Alberta and Saskatchewan, Canada (Paszkowski, Puchniak & Gray 2001) found that restored wetlands had similar amphibian abundance to natural wetlands, suggesting that restored wetlands provide suitable habitat for amphibians. A total of 4,086 wood frogs Rana sylvatica, boreal chorus frogs Pseudacris maculata and tiger salamanders Ambystoma tigrinim were captured over the two years. Amphibians, in particular wood frogs, were found in similar numbers in restored and natural wetlands. From 1987, wetlands were restored by installing ditch plugs. Amphibian presence/absence was recorded in 97 restored and 85 natural wetlands. In 1999, seven and in 2000, 11 restored and natural wetlands were monitored intensively. Pitfall (19,431 trap nights) and minnow traps (6,794 trap nights) were used to compare species between restored and natural ponds.