| DOI: | 10.1016/j.foreco.2015.10.019
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| Scopus记录号: | 2-s2.0-84946423415
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| 论文题名: | Beaver-created deadwood dynamics in the boreal forest |
| 作者: | Thompson S.; Vehkaoja M.; Nummi P.
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| 刊名: | Forest Ecology and Management
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| ISSN: | 0378-1127
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| 出版年: | 2016
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| 卷: | 360 | | 起始页码: | 1
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| 结束页码: | 8
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| 语种: | 英语
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| 英文关键词: | Beaver inundation
; Deadwood
; Restoration
; Saproxylic
; Snag
; Wetlands
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| Scopus关键词: | Ecology
; Ecosystems
; Floods
; Forestry
; Image reconstruction
; Restoration
; Wetlands
; Beaver inundation
; Community diversity
; Deadwood
; Ecosystem engineer
; Fine woody debris
; Intensive forest management
; Saproxylic
; Snag
; Conservation
; boreal forest
; cost-benefit analysis
; dead wood
; deciduous tree
; ecosystem engineering
; forest management
; landscape planning
; restoration ecology
; riparian forest
; rodent
; saproxylic organism
; snag
; species diversity
; wetland
; woody debris
; Castoridae
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| 英文摘要: | Deadwood is a markedly important ecosystem element, and increasingly rare in managed landscapes. Beavers (Castor sp.) are ecosystem engineers of the boreal forest, where they modify riparian forests and wetlands through damming. The subsequent inundation causes extensive die-off of trees in the flood zone. We measured the deadwood volumes and types for six beaver-created flood sites, and compared these to control sites with no beaver influence. Our results show beavers create abundant volumes of deadwood in areas rarely experiencing other disturbance types. Significant amounts of beaver-created deadwood consist of rare types, e.g. snags and deciduous wood. Both coarse and fine woody debris are created. These varying substrates increase deadwood heterogeneity and create differing saproxylic community diversity compared to other disturbances. The roaming lifestyle of beavers cause repeated flooding in boreal landscapes. This upholds deadwood continuity in areas where deadwood levels are very low due to intensive forest management. The reoccurring pulses of deadwood created by beavers may facilitate a wide scope of deadwood-dependent species. The beaver can be used as a deadwood facilitator and engine of restoration in boreal wetlands and riparian forests. This is an economic option compared to costly and time-consuming man-made restoration. © 2015 Elsevier B.V. |
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| 资源类型: | 期刊论文
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/65158
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| Appears in Collections: | 影响、适应和脆弱性
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作者单位: | University of Helsinki, Department of Forest Sciences, University of Helsinki, P.O. Box 27, Finland
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| Recommended Citation: | |
Thompson S.,Vehkaoja M.,Nummi P.. Beaver-created deadwood dynamics in the boreal forest[J]. Forest Ecology and Management,2016-01-01,360
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