DOI: 10.1016/j.foreco.2017.02.023
Scopus记录号: 2-s2.0-85013829782
论文题名: Long-term recovery of epiphytic communities in the Great Bear Rainforest of coastal British Columbia
作者: Price K. ; Lilles E.B. ; Banner A.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 391 起始页码: 296
结束页码: 308
语种: 英语
英文关键词: Ecosystem recovery
; Epiphytic community
; Great Bear Rainforest
; Lichen
; Oldgrowth
; Temperate rainforest
Scopus关键词: Biodiversity
; Fungi
; Plants (botany)
; Recovery
; Ecosystem recoveries
; Epiphytic community
; Great bear rainforests
; Lichen
; Old-growth
; Temperate rainforest
; Forestry
; abundance
; biodiversity
; bryophyte
; epiphyte
; functional group
; lichen
; old-growth forest
; plant community
; rainforest
; restoration ecology
; species richness
; British Columbia
; Canada
; Great Bear Rainforest
; Abies
; bryophytes
; Picea sitchensis
; Thuja plicata
; Tsuga heterophylla
英文摘要: The recent Great Bear Rainforest agreement recognises the high biodiversity values of this large intact area of coastal temperate rainforest by calling for old forest targets to be met by 2264. Recruiting young stands has joined conserving existing old stands as a strategy for achieving targets, but the point at which second growth stands recover oldgrowth attributes remains uncertain. We examined the recovery of epiphytes towards oldgrowth conditions by comparing community composition, richness and abundance between young (55–100 year old), mature (101–250 years old) and oldgrowth stands (>250 year old). We felled 77 western redcedar, amabilis fir, western hemlock and Sitka spruce trees, identified all epiphytes, and examined effects of stand age, region, tree species, site nutrient status and presence of residual trees on the epiphyte community. We found 229 taxa, including 49 bryophytes, 98 macrolichens and 82 crustose lichens. Epiphyte community varied by region and among tree species, but not by site productivity or presence of residual trees. In the northern region, trees in oldgrowth supported twice as many epiphyte species, seven times as many unique species, and a significantly different community composition for all functional groups (bryophytes, crustose lichens, hair lichens, cyanolichens and other macrolichens) relative to trees in stands younger than 200 years. Overall similarity between second growth and oldgrowth was about 50%. Young and mature stands overlapped considerably in richness, abundance, and community composition, indicating little recovery between 55 and 200 years. Our study suggests that in the northern region of the Great Bear Rainforest, epiphyte communities need more than 200 years to recover to oldgrowth conditions. © 2017 Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64438
Appears in Collections: 影响、适应和脆弱性
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作者单位: 1355 Malkow Road, Smithers, BC, Canada; Ministry of Forests, Lands and Natural Resource Operations, Bag 6000, Smithers, BC, Canada; 2365 Carr Road, Smithers, BC, Canada
Recommended Citation:
Price K.,Lilles E.B.,Banner A.. Long-term recovery of epiphytic communities in the Great Bear Rainforest of coastal British Columbia[J]. Forest Ecology and Management,2017-01-01,391