DOI: 10.1016/j.foreco.2012.10.027
Scopus记录号: 2-s2.0-84870152210
论文题名: Reproductive success of a tropical tree, Shorea laxa, in a pulau (forest reserve) managed by a local community in Borneo
作者: Takeuchi Y. ; Nakagawa M. ; Diway B. ; Nakashizuka T.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2013
卷: 289 起始页码: 416
结束页码: 424
语种: 英语
英文关键词: Community forest management
; Density dependency
; Forest fragmentation
; Genetic diversity
; Pollen dispersal
; Seed predation
Scopus关键词: Dipterocarpaceae
; Forest fragmentations
; Forest reserves
; Genetic diversity
; Local community
; Local density
; Lower density
; Malaysia
; Micro satellite
; Pollen dispersal
; Primary forest
; Regeneration process
; Reproductive success
; Sarawak
; Seed maturation
; Seed orchard
; Seed predation
; Seed production
; Seedling mortality
; Seedling survival
; Selfing
; Tropical tree
; Animals
; Biodiversity
; Plants (botany)
; Seed
; Reforestation
; agroforestry
; biological invasion
; density dependence
; forest management
; genetic marker
; genetic variation
; habitat conservation
; habitat fragmentation
; orchard
; pollen
; reproductive success
; seed predation
; seed production
; survival
; tropical forest
; Borneo
; East Malaysia
; Malaysia
; Sarawak
; Animalia
; Dipterocarpaceae
; Shorea laxa
; Vertebrata
英文摘要: For local communities of Sarawak, Malaysia, pulaus (forest reserves) are important components of agriculture and forestry systems, e.g., as seed orchards. However, pulaus are often fragmented, which may affect tree reproductive and regeneration processes and cause low seed production or seedling survival. Here, we investigated whether the pulau system affects the reproductive success of a tropical tree, Shorea laxa (Dipterocarpaceae). First, we compared survivorship during the flower-to-seedling stages, seed fate and seedling mortality between a pulau and a primary forest. Next, we evaluated the neighborhood aggregation effect, i.e., local density effect, on the reproductive process. Finally, through microsatellite analysis using seed arrays, we examined the pollination process including the selfing rate, genetic diversity and pollen dispersal distances.We found no clear differences in tree survivorship during the flower-to-seedling stages between the two sites. However, predation by vertebrates was lower in the pulau, possibly because of a lower density of seed-predating vertebrates. Neighborhood aggregation was negatively correlated with seed maturation and seed survival in the pulau, similar to the primary forest. However, the scale of neighborhood aggregation differed between the two sites, suggesting a change in the scale of plant-animal interactions. Although pollen dispersal was limited within the pulau, a low selfing rate and high genetic diversity of the seed array indicated effective pollination.In this study, we did not find a strong negative effect of the pulau or of forest fragmentation on the reproduction and regeneration of S. laxa. The pulau investigated in this study was shown to provide genetically rich seeds. We also discuss the importance of the pulau system from a conservation perspective. © 2012 Elsevier B.V. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/66814
Appears in Collections: 影响、适应和脆弱性
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作者单位: School of Advanced Sciences, Graduate University for Advanced Studies, Hayama, Kanagawa 240-0193, Japan; Graduate School of Bioagricultural Sciences, Nagoya University, Furo, Chikusa, Nagoya 464-8601, Japan; Botanical Research Centre Semenggoh, Km 20, Borneo Height Road, 93250 Kuching, Sarawak, Malaysia; Graduate School of Life Sciences, Tohoku University, Aoba 6-3, Aramaki Aoba-ku, Sendai 980-8578, Japan
Recommended Citation:
Takeuchi Y.,Nakagawa M.,Diway B.,et al. Reproductive success of a tropical tree, Shorea laxa, in a pulau (forest reserve) managed by a local community in Borneo[J]. Forest Ecology and Management,2013-01-01,289