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Providing evidence to improve practice

Individual study: Small group and single tree cutting rather than clearcutting did not result in increased abundance of amphibians or reptiles at the landscape scale in Missouri, USA

Published source details

Renken R.B., Gram W.K., Fantz D.K., Richter S.C., Miller T.J., Ricke K.B., Russell B. & Wang X. (2004) Effects of forest management on amphibians and reptiles in Missouri Ozark forests. Conservation Biology, 18, 174-188

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Harvest groups of trees instead of clearcutting Amphibian Conservation

A randomized, replicated, controlled, before-and-after study in 1992–2000 of oak-pine and oak-hickory forest in Missouri, USA (Renken et al. 2004) found that there was no significant difference in amphibian abundance between sites with small group or single tree selection harvesting and those with clearcutting. Abundance of species declined after harvest but also declined on unharvested sites. Nine sites (312–514 ha) were randomly assigned to treatments: small group or single tree selection harvesting (5% area; uneven-aged management), clearcutting in 3–13 ha blocks (10–15% total area) with forest thinning (even-aged), or unharvested controls. Harvesting was in May 1996 and 1997. Twelve drift-fence arrays with pitfall and funnel traps were established/plot. Traps were checked every 3–5 days in spring and autumn 1992–1995 and 1997–2000.