Effects of Disturbance and Landscape Position on Vegetation Structure and Productivity in Ontario Boreal Forests: Implications for Woodland Caribou (Rangifer tarandus caribou) Forage
Hypotheses explaining recent declines in the abundance of woodland caribou in boreal Ontario include increased disturbances and predation. Caribou may select peatlands to avoid predation. Peatlands are regarded as low productivity, nutrient-limited systems, caribou may face a trade-off between preda...
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University of Guelph
2014
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ftunivguelph:oai:atrium.lib.uoguelph.ca:10214/8114 2024-06-23T07:56:22+00:00 Effects of Disturbance and Landscape Position on Vegetation Structure and Productivity in Ontario Boreal Forests: Implications for Woodland Caribou (Rangifer tarandus caribou) Forage Mallon, Erin E Turetsky, Merritt 2014-05-12 application/pdf http://hdl.handle.net/10214/8114 en eng University of Guelph http://hdl.handle.net/10214/8114 All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated. understory landscape productivity percent cover biomass woodland caribou chronosequence drainage disturbance Nitrogen ADF forage quality NDF Thesis 2014 ftunivguelph 2024-05-29T00:00:15Z Hypotheses explaining recent declines in the abundance of woodland caribou in boreal Ontario include increased disturbances and predation. Caribou may select peatlands to avoid predation. Peatlands are regarded as low productivity, nutrient-limited systems, caribou may face a trade-off between predation risk and nutrient intake through foraging. I quantified differences in plant community and plant foliar quality in boreal stands across drainage class, disturbance type and time-following-disturbance. I found that understory productivity was influenced more by drainage and time-following-disturbance than by disturbance type. I also quantified variation among stand characteristics and plant functional types using measures of plant foliar quality. Foliar quality varied mostly by plant functional type. Overall, this thesis does not support the hypothesis that caribou face a trade-off between forage quality and predation risk by selecting peatlands, as peatlands had greater levels of understory productivity and foliar quality relative to uplands. Thesis Rangifer tarandus University of Guelph: DSpace digital archive |
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Open Polar |
collection |
University of Guelph: DSpace digital archive |
op_collection_id |
ftunivguelph |
language |
English |
topic |
understory landscape productivity percent cover biomass woodland caribou chronosequence drainage disturbance Nitrogen ADF forage quality NDF |
spellingShingle |
understory landscape productivity percent cover biomass woodland caribou chronosequence drainage disturbance Nitrogen ADF forage quality NDF Mallon, Erin E Effects of Disturbance and Landscape Position on Vegetation Structure and Productivity in Ontario Boreal Forests: Implications for Woodland Caribou (Rangifer tarandus caribou) Forage |
topic_facet |
understory landscape productivity percent cover biomass woodland caribou chronosequence drainage disturbance Nitrogen ADF forage quality NDF |
description |
Hypotheses explaining recent declines in the abundance of woodland caribou in boreal Ontario include increased disturbances and predation. Caribou may select peatlands to avoid predation. Peatlands are regarded as low productivity, nutrient-limited systems, caribou may face a trade-off between predation risk and nutrient intake through foraging. I quantified differences in plant community and plant foliar quality in boreal stands across drainage class, disturbance type and time-following-disturbance. I found that understory productivity was influenced more by drainage and time-following-disturbance than by disturbance type. I also quantified variation among stand characteristics and plant functional types using measures of plant foliar quality. Foliar quality varied mostly by plant functional type. Overall, this thesis does not support the hypothesis that caribou face a trade-off between forage quality and predation risk by selecting peatlands, as peatlands had greater levels of understory productivity and foliar quality relative to uplands. |
author2 |
Turetsky, Merritt |
format |
Thesis |
author |
Mallon, Erin E |
author_facet |
Mallon, Erin E |
author_sort |
Mallon, Erin E |
title |
Effects of Disturbance and Landscape Position on Vegetation Structure and Productivity in Ontario Boreal Forests: Implications for Woodland Caribou (Rangifer tarandus caribou) Forage |
title_short |
Effects of Disturbance and Landscape Position on Vegetation Structure and Productivity in Ontario Boreal Forests: Implications for Woodland Caribou (Rangifer tarandus caribou) Forage |
title_full |
Effects of Disturbance and Landscape Position on Vegetation Structure and Productivity in Ontario Boreal Forests: Implications for Woodland Caribou (Rangifer tarandus caribou) Forage |
title_fullStr |
Effects of Disturbance and Landscape Position on Vegetation Structure and Productivity in Ontario Boreal Forests: Implications for Woodland Caribou (Rangifer tarandus caribou) Forage |
title_full_unstemmed |
Effects of Disturbance and Landscape Position on Vegetation Structure and Productivity in Ontario Boreal Forests: Implications for Woodland Caribou (Rangifer tarandus caribou) Forage |
title_sort |
effects of disturbance and landscape position on vegetation structure and productivity in ontario boreal forests: implications for woodland caribou (rangifer tarandus caribou) forage |
publisher |
University of Guelph |
publishDate |
2014 |
url |
http://hdl.handle.net/10214/8114 |
genre |
Rangifer tarandus |
genre_facet |
Rangifer tarandus |
op_relation |
http://hdl.handle.net/10214/8114 |
op_rights |
All items in the Atrium are protected by copyright with all rights reserved unless otherwise indicated. |
_version_ |
1802649404778217472 |