Pollination ecology of the rare desert species Eremosparton songoricum (Fabaceae)
文献类型：期刊论文
| 作者 | Shi ; X. ; Wang ; J. C. ; Zhang ; D. Y. ; Gaskin ; J. F. ; Pan ; B. R. |
| 刊名 | AUSTRALIAN JOURNAL OF BOTANY
 |
| 出版日期 | 2010 |
| 卷号 | 58期号:1页码:35-41 |
| 关键词 | POLLEN LIMITATION RESOURCE-ALLOCATION NECTAR PRODUCTION FLORAL DISPLAY PLANTS PATTERNS BIOLOGY VISITATION SIZE POPULATIONS |
| ISSN号 | 0067-1924 |
| 通讯作者 | Zhang, DY, Chinese Acad Sci, Key Lab Biogeog & Bioresource Arid Land, Xinjiang Inst Ecol & Geog, Urumqi 830011, Peoples R China |
| 中文摘要 | The pollination ecology of Eremosparton songoricum (Litv.) Vass., a rare desert species endemic to central Asia, was examined by a series of observational studies and manipulative experiments in two natural populations during 2007-2008. Results showed that the duration of flowering lasted 21 and 23 days, respectively, in Populations A and B from late May to late June in 2008. Anthesis of a single flower often lasted for 3 days. However, if pollinators were excluded, both the anthesis and stigma receptivity lasted 2 days longer. Mating-system experiment showed that E. songoricum was self-compatible and pollination success relied on pollinators. Fruit set after bagging without emasculation was 0.02 +/- 0.01%. This suggested that spontaneous autogamy rarely happened. E. songoricum primarily relies on a combination of large floral display, secretion of nectar and a yellow 'nectar guide' on the standard to further attract pollinators, which may be the result of adaptation to a habitat with unreliable access to pollinators. A single flower produced similar to 0.18 mu L and 0.50 mu L of nectar during 2 days in Populations A and B, respectively. The peak secretion occurred at 1300-1500 hours, which overlapped with the climax of visitation of the effective pollinators at 1300-1400 hours. There were four effective pollinators in both populations, namely Colletes popovi Nosk., Megachile terminate Morawitz, Coelioxys sp. and Bembix planifrons F. Mor. The most frequent one, Colletes popovi Nosk., was observed pollinating many flowers of the same individual plant (65.8 +/- 1.1%) in Population A, suggesting that geitonogamous self-pollination is unavoidable. Inbreeding depression played a role during the period from fertilisation to fruit maturation. |
| 学科主题 | 植物生态学 |
| 收录类别 | SCI |
| 公开日期 | 2011-08-19 |
| 源URL | [http://ir.xjlas.org/handle/365004/9986]  |
| 专题 | 新疆生态与地理研究所_中国科学院新疆生态与地理研究所(2010年以前数据) |
| 推荐引用方式 GB/T 7714 | Shi,X.,Wang,et al. Pollination ecology of the rare desert species Eremosparton songoricum (Fabaceae)[J]. AUSTRALIAN JOURNAL OF BOTANY,2010,58(1):35-41. |
| APA | Shi.,X..,Wang.,J. C..,Zhang.,...&B. R..(2010).Pollination ecology of the rare desert species Eremosparton songoricum (Fabaceae).AUSTRALIAN JOURNAL OF BOTANY,58(1),35-41. |
| MLA | Shi,et al."Pollination ecology of the rare desert species Eremosparton songoricum (Fabaceae)".AUSTRALIAN JOURNAL OF BOTANY 58.1(2010):35-41. |
入库方式： OAI收割
来源：新疆生态与地理研究所
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