dc.creator |
Harper, Karen A., 1969- |
|
dc.creator |
Macdonald, S. Ellen |
|
dc.creator |
Mayerhofer, Michael S. |
|
dc.creator |
Biswas, Shekhar R. |
|
dc.creator |
Esseen, Per-Anders |
|
dc.creator |
Hylander, Kristoffer |
|
dc.creator |
Stewart, Katherine J. |
|
dc.creator |
Mallik, Azim U. |
|
dc.creator |
Drapeau, Pierre |
|
dc.creator |
Jonsson, Bengt-Gunnar |
|
dc.date.accessioned |
2020-09-08T15:02:30Z |
|
dc.date.available |
2020-09-08T15:02:30Z |
|
dc.date.issued |
2015-05 |
|
dc.identifier.issn |
0022-0477 |
|
dc.identifier.uri |
http://library2.smu.ca/xmlui/handle/01/29398 |
|
dc.description |
Published Version |
en_CA |
dc.description.abstract |
Summary
1. Although anthropogenic edges are an important consequence of timber harvesting, edges due to
natural disturbances or landscape heterogeneity are also common. Forest edges have been well studied
in temperate and tropical forests, but less so in less productive, disturbance-adapted boreal forests.
2. We synthesized data on forest vegetation at edges of boreal forests and compared edge influence
among edge types (fire, cut, lake/wetland; old vs. young), forest types (broadleaf vs. coniferous) and
geographic regions. Our objectives were to quantify vegetation responses at edges of all types and
to compare the strength and extent of edge influence among different types of edges and forests.
3. Research was conducted using the same general sampling design in Alberta, Ontario and Quebec
in Canada, and in Sweden and Finland. We conducted a meta-analysis for a variety of response variables including forest structure, deadwood abundance, regeneration, understorey abundance and
diversity, and non-vascular plant cover. We also determined the magnitude and distance of edge
influence (DEI) using randomization tests.
4. Some edge responses (lower tree basal area, tree canopy and bryophyte cover; more logs; higher
regeneration) were significant overall across studies. Edge influence on ground vegetation in boreal
forests was generally weak, not very extensive (DEI usually < 20 m) and decreased with time. We
found more extensive edge influence at natural edges, at younger edges and in broadleaf forests.
The comparison among regions revealed weaker edge influence in Fennoscandian forests.
5. Synthesis. Edges created by forest harvesting do not appear to have as strong, extensive or persistent influence on vegetation in boreal as in tropical or temperate forested ecosystems. We attribute
this apparent resistance to shorter canopy heights, inherent heterogeneity in boreal forests and their
adaptation to frequent natural disturbance. Nevertheless, notable differences between forest structure
responses to natural (fire) and anthropogenic (cut) edges raise concerns about biodiversity implications of extensive creation of anthropogenic edges. By highlighting universal responses to edge
influence in boreal forests that are significant irrespective of edge or forest type, and those which
vary by edge type, we provide a context for the conservation of boreal forests. |
en_CA |
dc.description.provenance |
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en |
dc.description.provenance |
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Previous issue date: 2015-05 |
en |
dc.language.iso |
en |
en_CA |
dc.publisher |
John Wiley & Sons Ltd. |
en_CA |
dc.rights |
<p xmlns:dct="http://purl.org/dc/terms/" xmlns:cc="http://creativecommons.org/ns#" class="license-text">This is an open access article licensed under <a rel="license" href="https://creativecommons.org/licenses/by-nc-nd/4.0">CC BY-NC-ND 4.0<img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/cc.svg?ref=chooser-v1" /><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/by.svg?ref=chooser-v1" /><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/nc.svg?ref=chooser-v1" /><img style="height:22px!important;margin-left:3px;vertical-align:text-bottom;" src="https://mirrors.creativecommons.org/presskit/icons/nd.svg?ref=chooser-v1" /></a></p> |
|
dc.subject.lcsh |
Forests and forestry -- Canada |
|
dc.subject.lcsh |
Forests and forestry -- Sweden |
|
dc.subject.lcsh |
Forests and forestry -- Finland |
|
dc.subject.lcsh |
Taiga ecology -- Canada |
|
dc.subject.lcsh |
Taiga ecology -- Sweden |
|
dc.subject.lcsh |
Taiga ecology -- Finland |
|
dc.title |
Edge influence on vegetation at natural and anthropogenic edges of boreal forests in Canada and Fennoscandia |
en_CA |
dc.type |
Text |
en_CA |
dcterms.bibliographicCitation |
Journal of Ecology 103, 550-562. (2015) |
en_CA |