滇西北玉龙雪山访花昆虫视觉下植物花色多样性
文献类型：学位论文
| ; | |
| 作者 | 范小箐 |
| 答辩日期 | 2021-05 |
| 导师 | 王红 |
| 英文摘要 | Flower color is one of the most important floral traits mediating the plant-pollinator interaction. Compared with floral scent, which is hard to track and hard to target the signal due to its volatility, floral color is generally the final and key cue for pollinators to locate a flower. Flower colors of angiosperms show extremely high diversity in the vision of human beings However, pollinating animals, especially pollinating insects' visual systems are different with ours and also vary among different insect taxa. There, this project is aimed to explore floral UV-pattern, which under the wavelength that human are not sensitive to but most of insects(bees) are sensitive to it. China is one of countries in the world with highest plant diversity, the Mountain of Southwest China a mega-biodiversity hotspots all over the world. In this region, it harbors the richest apline plant species. However, in China, the floral color studies are still rare. Our study will fill the gaps of floral color study in China, will allow us for a better understanding of floral color in extremely environments on the Mountains of Southwest China. Therefore, in this project, we used a newly developed technique, false-color photography to take photos for alpine and subalpine plant flowers on Yulong Snow Mountain of Northwest Yunnan following an elevation gradient from 2700m to 4200m. We then analyzed the UV photos and investigate the floral UV-pattern. We further analyzed the elevation distribution of floral UV-pattern among taxa, explored whether there were new floral UV-pattern types at such extreme environments; and also checked if the ultraviolet color was an adaptative strategy for flowers living in high altitudes with stronger UV radiation. In total, we took false color photographs for 326 species, and processed and analyzed their floral color pattern, we found that 32% of the total species (n = 103) have floral UV-pattern, but we did not found out a significant trends of elevation change of the proportion of UV pattern; we discovered a new type of floral UV-pattern nectar mimicry; furthermore, flowers among different species showed uv-reflecting and uv-absorbing of their petals adaxially and abaxially differed, which might be an adaptive strategy to against UV harm to pollen grains. |
| 源URL | [http://ir.kib.ac.cn/handle/151853/74520]  |
| 专题 | 昆明植物研究所_昆明植物所硕博研究生毕业学位论文 |
| 推荐引用方式 GB/T 7714 | 范小箐. 滇西北玉龙雪山访花昆虫视觉下植物花色多样性, Diversity of Plant Flower Colors under the Vision of Flower Visitors in Yulong Snow Mountain, Northwestern Yunnan[D]. 2021. |
入库方式： OAI收割
来源：昆明植物研究所
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