globalchange  > 影响、适应和脆弱性
DOI: 10.1016/j.foreco.2015.07.023
Scopus记录号: 2-s2.0-84945461385
论文题名:
Understanding local patterns of genetic diversity in dipterocarps using a multi-site, multi-species approach: Implications for forest management and restoration
作者: Tito de Morais C.; Ghazoul J.; Maycock C.R.; Bagchi R.; Burslem D.F.R.P.; Khoo E.; Itoh A.; Nanami S.; Matsuyama S.; Finger A.; Ismail S.A.; Kettle C.J.
刊名: Forest Ecology and Management
ISSN:  0378-1127
出版年: 2015
卷: 356
起始页码: 153
结束页码: 165
语种: 英语
英文关键词: Dipterocarpaceae ; Flower size ; Fragmentation ; Inbreeding ; Spatial genetic structure ; Tropical rain forest ; Wood density
Scopus关键词: Biodiversity ; Conservation ; Hardwoods ; Information theory ; Reforestation ; Dipterocarpaceae ; Flower size ; Fragmentation ; Inbreeding ; Spatial genetic structure ; Tropical rain forest ; Wood density ; Forestry ; conservation management ; dicotyledon ; fitness ; flower ; forest management ; fragmentation ; gene flow ; genetic resource ; genetic structure ; genetic variation ; inbreeding ; rainforest ; restoration ecology ; theoretical study ; tropical forest ; wood ; Borneo ; India ; Malaysia ; Seychelles ; Dipterocarpaceae
英文摘要: The lowland tropical forests of Southeast Asia are dominated by a single family of canopy and emergent trees, the Dipterocarpaceae. The seeds of dipterocarps are gravity or gyration dispersed. Short distance and limited seed dispersal via these mechanisms result in the aggregation of related individuals and strong fine-scale spatial genetic structure (FSGS). In logged and fragmented forests, where gene flow may be disrupted, tree species with strong FSGS are predicted to exhibit increased inbreeding, which consequently can erode genetic diversity, fitness and might limit the potential for natural regeneration of dipterocarps. Developing a set of indirect operational indicators for FSGS provides a solid basis for informing conservation and management of forest genetic resources in logged forests. Our main objective was to use an information theoretic approach to identify these indicators of FSGS in dipterocarps. We quantify FSGS in 19 dipterocarp species across four forest sites in Malaysian Borneo, India and the Seychelles. We detected FSGS in 15 (79%) of our study species, most of which displayed significant inbreeding. Our results suggest that wood density and flower size offer useful indicators of FSGS. We propose some simple guidelines to allow forest managers to account for FSGS when planning approaches to maintain genetically diverse stands in logged dipterocarp forests. The integration of improved understanding of genetic processes is essential for conserving forest tree genetic resources and ensuring the resilience of logged forests. © 2015 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/65289
Appears in Collections:影响、适应和脆弱性

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作者单位: Ecosystem Management, Institute of Terrestrial Ecosystems, ETH Zurich, Zurich, Switzerland; International Tropical Forestry, Faculty of Science and Natural Resources, Universiti Malaysia Sabah, Malaysia; Department of Ecology and Evolutionary Biology, University of Connecticut, 75 N. Eagleville Road, Storrs, CT, United States; Institut of Biological and Environmental Sciences, University of Aberdeen, Cruickshank Building, St Machar Drive, Aberdeen, United Kingdom; Forest Research Center, Sabah Forestry Department, P.O. Box 1407, Sandakan, Sabah, Malaysia; Graduate School of Science, Osaka City University, Sugimoto 3-3-138, Sumiyoshi-ku, Osaka, Japan; Royal Botanic Gardens Edinburgh, Edinburgh, United Kingdom

Recommended Citation:
Tito de Morais C.,Ghazoul J.,Maycock C.R.,et al. Understanding local patterns of genetic diversity in dipterocarps using a multi-site, multi-species approach: Implications for forest management and restoration[J]. Forest Ecology and Management,2015-01-01,356
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