Community structure of canopy arthropods associated with Abies amabilis branches in a variable retention forest stand on Vancouver Island, British Columbia, Canada.

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dc.contributor.authorWilkerson, Stacey Lee
dc.contributor.supervisorAnholt, Bradley Ralph
dc.date.accessioned2008-11-14T23:20:32Z
dc.date.available2008-11-14T23:20:32Z
dc.date.copyright2005en_US
dc.date.issued2008-11-14T23:20:32Z
dc.degree.departmentDept. of Biologyen_US
dc.degree.levelMaster of Science M.Sc.en_US
dc.description.abstractClearcut harvesting can create conditions unfavourable to forest regeneration. In response, variable retention harvest methods are being investigated in montane forests on Vancouver Island, Canada. The effect of this overstory removal is unknown for canopy microarthropods, especially oribatid mites. As mites contribute significantly to nutrient cycling and decomposition processes in the canopy, changes in community structure and abundance may have dramatic effects on forest productivity. I studied the effects of two variable retention treatments, patch-cut and shelterwood systems, on arthropod communities associated with Abies amabilis (amabilis fir) branches and lichens. Changes in community structure were evident among the treatments and an old-growth control site. I also investigated the use of lichen abundance as a surrogate for oribatid mite abundance because it is time consuming and laborious to collect, count and identify microarthropods. Lichen abundance was a good predictor of mites in the old-growth and shelterwood, but not in the patch-cuts. Lichen abundance estimates should not replace biotic inventories, but can he used as an indicator when rapid biodiversity assessments are required.en_US
dc.identifier.urihttp://hdl.handle.net/1828/1254
dc.languageEnglisheng
dc.language.isoenen_US
dc.rights.tempAvailable to the World Wide Weben_US
dc.subjectmitesen_US
dc.subjectforest regenerationen_US
dc.subjectclearcuten_US
dc.subjectforestryen_US
dc.subject.lcshUVic Subject Index::Sciences and Engineering::Biology::Entomologyen_US
dc.subject.lcshUVic Subject Index::Sciences and Engineering::Agriculture::Forests and forestryen_US
dc.titleCommunity structure of canopy arthropods associated with Abies amabilis branches in a variable retention forest stand on Vancouver Island, British Columbia, Canada.en_US
dc.typeThesisen_US

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