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Permanent link (DOI): https://doi.org/10.7939/R3ZT2K

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Songbird Responses to Regenerating Seismic Lines in the Boreal Forest Open Access

Descriptions

Other title
Subject/Keyword
Ovenbird (Seiurus aurocapilla)
seismic line regeneration
songbirds
boreal forest
linear disturbance
landmarks
Type of item
Thesis
Degree grantor
University of Alberta
Author or creator
Lankau, Hedwig Erika Gertraude
Supervisor and department
Bayne, Erin (Biological Sciences)
Examining committee member and department
Nielsen, Scott (Renewable Resources)
MacKenzie, M Derek (Renewable Resources)
Department
Department of Biological Sciences
Specialization
Ecology
Date accepted
2014-01-31T09:07:33Z
Graduation date
2014-06
Degree
Master of Science
Degree level
Master's
Abstract
I investigated how songbirds respond to seismic lines as the vegetation cover on lines regenerates and how long seismic line effects on songbirds persist. I found that line age was poorly correlated with natural vegetation recovery and that after an initial increase in recovery after 20 years the mean recovery state of lines did not change. Few bird species showed strong negative responses to young, open seismic lines and changes in relative abundance were generally greater on seismic lines with dense shrubby regrowth. Species richness of birds tended to increase on lines in the early stages of recovery and return toward levels seen in the forest as seismic lines recovered. Ovenbirds responded to seismic lines for multiple reasons. Bare lines were excluded by Ovenbirds because they lacked leaf litter and protective cover. Lines were also excluded as they regenerated because Ovenbirds used them as landmarks between neighbouring territories.
Language
English
DOI
doi:10.7939/R3ZT2K
Rights
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
Lankau, H. E., E. M. Bayne, and C. S. Machtans. 2013. Ovenbird (Seiurus aurocapilla) territory placement near seismic lines is influenced by forest regeneration and conspecific density. Avian Conservation and Ecology 8(1):5.  http://dx.doi.org/10.5751/ACE-00596-080105

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