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dc.contributor.advisorHobson, Keith A.en_US
dc.creatorKardynal, Kevin Johnen_US
dc.date.accessioned2007-10-22T15:31:41Zen_US
dc.date.accessioned2013-01-04T05:06:32Z
dc.date.available2008-10-31T08:00:00Zen_US
dc.date.available2013-01-04T05:06:32Z
dc.date.created2007en_US
dc.date.issued2007en_US
dc.date.submitted2007en_US
dc.identifier.urihttp://hdl.handle.net/10388/etd-10222007-153141en_US
dc.description.abstractWorldwide, riparian areas are considered among the most biologically productive and species-rich habitats on the landscape and provide important breeding areas for many bird species. In the Boreal Plain ecozone of western Canada, forests adjacent to riparian areas are generally protected from forest harvesting through the retention of treed buffer strips. Riparian buffer strips are expected to provide habitat for wildlife including many passerine bird species. Recently, non-conventional methods of riparian management have been implemented in parts of the Boreal Plain with the intent of aligning forestry more closely with natural disturbance processes. How bird communities associated with these management scenarios diverge from natural disturbances and how riparian birds interact with disturbances in the adjacent upland habitat are key questions in the conservation of boreal riparian bird communities. To answer these questions, I surveyed birds inhabiting riparian areas with adjacent naturally disturbed (burned) and harvested forest to determine how bird communities differ early (1-5 years) post-disturbance and, separately, in a before-and-after harvesting study. Riparian species associated with burned merchantable shoreline forests and riparian areas included Common Yellowthroat (Geothlypis trichas) and Eastern Kingbird (Tyrannus tyrannus). Le Conte’s Sparrow (Ammodramus leconteii) was associated with burned riparian habitats adjacent to non-merchantable forests (e.g., bog, fen), while Alder Flycatcher (Empidonax alnorum) and Wilson’s Warbler (Wilsonia pusilla) were indicative of harvested sites with larger buffers (30 m). Riparian species richness was highest in burned non-merchantable sites. Multivariate Redundancy Analysis of post-disturbance bird communities showed greater divergence in overall (riparian and upland) community composition than one with only riparian species. This suggests reduced sensitivity of riparian birds to disturbances in forested areas compared to upland bird communities. However, a higher natural range of variability was exhibited in riparian bird community composition in post-fire sites than in post-harvested sites. This emphasizes that forest management practices do not currently fully approximate natural disturbance for boreal riparian birds. To assess the response of bird communities in riparian habitats to forestry, I studied bird communities one year (2004) prior to forest harvest and two years (2005 and 2006) after harvest. One of three treatments, 1) 5-35% retention (0 m buffer), 2) 35-75% retention (10 m buffer with variable retention in the next 30 m), 3) 75-100% retention (50 m buffer) and unharvested reference sites, was randomly assigned to 34 wetlands. Treatments were designed to represent buffer management strategies currently applied in the Boreal Plain. Eight of 22 species showed a significant response (pen_US
dc.language.isoen_USen_US
dc.subjectriparianen_US
dc.subjectboreal foresten_US
dc.subjectbird communityen_US
dc.subjectforestryen_US
dc.subjectNatural Disturbance Paradigmen_US
dc.subjectNatural Range of Variationen_US
dc.subjectriparian management guidelinesen_US
dc.titleResponses of bird communities inhabiting boreal plain riparian habitats to forestry and fireen_US
thesis.degree.departmentBiologyen_US
thesis.degree.disciplineBiologyen_US
thesis.degree.grantorUniversity of Saskatchewanen_US
thesis.degree.levelMastersen_US
thesis.degree.nameMaster of Science (M.Sc.)en_US
dc.type.materialtexten_US
dc.type.genreThesisen_US
dc.contributor.committeeMemberVan Rees, Ken C. J.en_US
dc.contributor.committeeMemberHannon, Susanen_US
dc.contributor.committeeMemberClark, Robert G.en_US
dc.contributor.committeeMemberChilton, Neil B.en_US


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