DOI: 10.1016/j.foreco.2016.10.037
Scopus记录号: 2-s2.0-84993945212
论文题名: The seed-to-seedling transition is limited by ground vegetation and vertebrate herbivores in a selectively logged rainforest
作者: Piiroinen T. ; Valtonen A. ; Roininen H.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 384 起始页码: 137
结束页码: 146
语种: 英语
英文关键词: Afrotropics
; Direct seeding
; Forest regeneration
; Kibale National Park
; Secondary forest
; Tropical forests
Scopus关键词: Animals
; Forestry
; Vegetation
; Afrotropics
; Direct-seeding
; Forest regeneration
; National parks
; Secondary forests
; Tropical forest
; Reforestation
; Afrotropic Ecozone
; environmental restoration
; herb
; rainforest
; recruitment (population dynamics)
; reforestation
; regrowth
; secondary forest
; seedling emergence
; selective logging
; tropical forest
; vegetation cover
; vegetation dynamics
; vertebrate
; Kibale National Park
; Uganda
; Vertebrata
英文摘要: Due to the growing pressure to selectively log tropical forests, it is important to understand the reasons why natural regeneration can fail after logging. We addressed this with an experimental study in a selectively logged Ugandan rainforest that has failed to recover naturally. Our objective was to examine seedling emergence and performance (seedling height) and natural recruitment of indigenous tree species to better understand the factors that limit natural regeneration of forest. Seeds of 12 indigenous tree species were sown in forest gaps to examine the effect of herbaceous vegetation (manipulated with vegetation clearance), vertebrate herbivores (manipulated with vertebrate exclusion) and gap size on seedling emergence and performance, natural recruitment and seed disturbance. Seedling emergence was generally low, but showed high species-specific variation (range 0–50%). Emergence was significantly more likely to occur when vegetation was cleared and when seeds were protected from vertebrates. Seedlings also performed better when protected from vertebrates. Natural recruitment was low, limited to early successional species and enhanced by vegetation clearance. Seed disturbance was common. Our findings imply that regeneration of selectively logged forests is limited by barriers linked to herbaceous vegetation and vertebrate herbivores and granivores. However, seedling emergence and performance of some of the sown species was high, indicating that direct seeding can support reforestation efforts but that careful attention needs to be paid on species selection. Management of vegetation cover and ensuring the existence of carnivores that can control seed pests is recommended to support forest recovery on logged degraded sites. © 2016 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64569
Appears in Collections: 影响、适应和脆弱性
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作者单位: Faculty of Science and Forestry, Department of Environmental and Biological Sciences, University of Eastern Finland, P.O. Box 111, Joensuu, Finland
Recommended Citation:
Piiroinen T.,Valtonen A.,Roininen H.. The seed-to-seedling transition is limited by ground vegetation and vertebrate herbivores in a selectively logged rainforest[J]. Forest Ecology and Management,2017-01-01,384