Assessing the efficacy of buffer strips in sustaining bryophyte diversity in montane forests in the British Columbia interior

Petersen, Christine Louise

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Assessing the efficacy of buffer strips in sustaining bryophyte diversity in montane forests in the British Columbia interior

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Petersen, C. L. (2010). Assessing the efficacy of buffer strips in sustaining bryophyte diversity in montane forests in the British Columbia interior. Retrieved from Thompson Rivers University

Description

Small mountain streams are neglected under current BC forestry regulations. Debate exists over buffer widths necessary to maintain floristic diversity. The effectiveness of canopy treatments (clear-cut, one-sided or two-sided buffers and continuous forest) and buffer width in maintaining riparian bryophyte diversity and promoting community reassembly in adjacent harvested uplands was examined using 30 Interior Montane Spruce sites. Analysis found frequency and
richness of old-growth associated groups (liverworts, perennial stayers, closed canopy, humus or log species) was maintained with buffers (one sided and two-sided). Disturbance associated groups (colonists, open canopy and mineral soil/rock species) were more abundant in clear-cut riparian sites. Ordination found buffer width and canopy cover within 50 m radius affected bryophytes in riparian sites with buffers, whereas disturbance variables affected composition in clear-
cut riparian sites. Regressions showed the importance of habitat quality variables (soft CWD and concavity). A buffer had no effect on community reassembly in the uplands., small stream, riparian, buffer, bryophyte, functional groups

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Title: Assessing the efficacy of buffer strips in sustaining bryophyte diversity in montane forests in the British Columbia interior
Creator
Subject: Riprarian areas -- British Columbia, Riparian ecology -- British Columbia, Streams -- British Columbia
Description: Small mountain streams are neglected under current BC forestry regulations. Debate exists over buffer widths necessary to maintain floristic diversity. The effectiveness of canopy treatments (clear-cut, one-sided or two-sided buffers and continuous forest) and buffer width in maintaining riparian bryophyte diversity and promoting community reassembly in adjacent harvested uplands was examined using 30 Interior Montane Spruce sites. Analysis found frequency and richness of old-growth associated groups (liverworts, perennial stayers, closed canopy, humus or log species) was maintained with buffers (one sided and two-sided). Disturbance associated groups (colonists, open canopy and mineral soil/rock species) were more abundant in clear-cut riparian sites. Ordination found buffer width and canopy cover within 50 m radius affected bryophytes in riparian sites with buffers, whereas disturbance variables affected composition in clear- cut riparian sites. Regressions showed the importance of habitat quality variables (soft CWD and concavity). A buffer had no effect on community reassembly in the uplands., small stream, riparian, buffer, bryophyte, functional groups
Publisher: Thompson Rivers University
Contributor: Petersen, Christine Louise (author), Thompson Rivers University Faculty of Science (Degree granting institution), Waldichuk, Tom (twaldichuk) (Degree committee member), Karakatsoulis, John (jkarakatsoulis) (Degree committee member), Dickinson, Tom (tdickinson) (Degree committee member), Baldwin, Lyn (lybaldwin) (thesis advisor), Bradfield, Gary (Degree committee member), Fraser, Lauch (lfraser) (Degree committee member), Donkor, Kingsley (kdonkor) (Degree committee member)
Date: 2010
Type: Text, thesis
Format: electronic, 155p, electronic
Identifier: tru:124, u1: jkarakatsoulis, u1: tdickinson, u1: Tom Waldichuk, u2: Faculty of Science, Thompson Rivers University
Source
Language: English
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Rights: author

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