Spatiotemporal Variability in the Reproductive Success of the Continually Flowering Shrub Dillenia suffruticosa in Borneo.
Spatiotemporal Variability in the Reproductive Success of the Continually Flowering Shrub Dillenia suffruticosa in Borneo.
复制标题
婆罗洲连续开花灌木 Dillenia suffruticosa 繁殖成功率的时空变异。
DOI：
10.1111/btp.12135
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发表时间：
2014
期刊：
影响因子：
2.1
通讯作者：
NAKAGAWA Michiko
中科院分区：
文献类型：
--
作者：
TOKUMOTO Yuji;SAKAI Shoko;MATSUSHITA Michinari;OHKUBO Tatsuhiro;NAKAGAWA Michiko
连续开花植物全年连续开花，在东南亚热带雨林的沿着或林下层中常见。前胡克。F. Martelli（Dilleniaceae）是一种持续开花的灌木，在整个社区的大规模开花，一般开花（GF）和非GF期间开花。在不规则发生的GF期间，当所有森林层的物种同步开花几个月时，一些传粉者迁移到冠层，在那里GF促进参与植物的授粉成功。连续开花植物与GF植物共享可利用的传粉者群落，并且连续开花植物的繁殖成功可能在GF期间受到影响。为了评估GF对各种连续开花植物生殖成功的影响，我们在四个不同的研究地点研究了GF和非GF时期的传粉者密度和生殖成功的差异。虽然四个研究地点之间的结实率不同，但GF和非GF时期或研究地点之间的传粉者密度和结实率没有差异。我们的研究结果表明，无论冠层或其他植被成分的开花物候，D.suffruticosa的繁殖成功维持在一个近似恒定的水平。
Continually flowering plants bloom continuously throughout the year, as often seen in plants distributed along the roadsides or in the understory layers in Southeast Asia's tropical rain forests.Dillenia suffruticosa(Griff. ex Hook. f. & Thomson) Martelli (Dilleniaceae) is one such continually flowering shrub that flowers during periods of community‐wide mass flowering, general flowering (GF), and non‐GF. During irregularly occurring GF periods, when species of all forest layers flower synchronously for several months, some pollinators migrate to the canopy layer, where GF promotes the pollination success of participating plants. Continually flowering plants share the available pollinator community with GF plants, and the reproductive success of continually flowering plants may be affected during the GF period. To assess the effects of GF on the reproductive success of a diverse range of continually flowering plants, we examined the differences in pollinator density and reproductive success between GF and non‐GF periods inD.suffruticosaat four different research sites. Although the seed set differed among the four research sites, pollinator density and fruit set did not differ between GF and non‐GF periods or research sites. Our results suggest that the reproductive success ofD.suffruticosawas maintained at an approximately constant level, regardless of the flowering phenology of the canopy layer or other vegetation components.