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Please use this identifier to cite or link to this item: http://hdl.handle.net/1807/18273

Title: Saproxylic Insect Communities in Boreal Mixedwoods of Northeastern Ontario as a Function of Variation in Woody Debris Quality and Quantity and Sampling Methods
Authors: Dennis, Robert William James
Advisor: Malcolm, Jay R.
Smith, Sandy
Department: Forestry
Keywords: saproxylic
woody debris
sampling methods
soil insects
Issue Date: 13-Jan-2010
Abstract: Saproxylic insects rely on dead or dying wood at some point in their development and appear to be sensitive to forest management. In 2005 and 2006, I sampled saproxylic insects in mixedwood boreal forests in northeastern Ontario to assess effects of: 1) different logging practices, 2) variations in woody debris (WD) qualities, and 3) different sampling methods. I also compared insect communities between heavily decayed WD and soil. Although I collected data on all arthropod orders, I focused on the families of the Diptera and parasitic Hymenoptera and the morphospecies of the Scelionidae and Diapriidae. These insects showed clear responses to the WD quality treatments, but not to the different logging treatments. A few families were affected by ex situ sampling. I also found that the faunas of soil and WD are rather distinct from each other. This study shows that WD is a source of forest biodiversity. Consequently, sustainable forest management will rely on studies like this to conserve and maintain the biodiversity of Canada's largest group of eco-zones.
URI: http://hdl.handle.net/1807/18273
Appears in Collections:Master
Faculty of Forestry - Master theses

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