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題名 | Dispersal of Airborne Pollen in Chatienshan Nature Reserve, Northern Taiwan, with Emphasis on Taiwan Beech=臺灣北部插天山自然保留區的空中花粉散播:特別著重於臺灣水青岡 |
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作者 | 顧銓; 汪良奇; 陳淑華; | 書刊名 | Taiwania |
卷期 | 57:4 2012.12[民101.12] |
頁次 | 頁331-341 |
分類號 | 371.9232 |
關鍵詞 | 空中孢粉學; 空中花粉; 臺灣水青岡; 花粉雨; 花粉收集器; 臺灣; Aeropalynology; Airborne pollen; Fagus hayatae; Pollen rain; Pollen trap; Taiwan; |
語文 | 英文(English) |
DOI | 10.6165/tai.2012.57.331 |
中文摘要 | 本文為首篇以花粉收集器探討臺灣森林中花粉雨的研究,特別著重於臺灣水青岡及一些主要物種的花粉散播型式,並嘗試釐清花粉組合與周圍植被之間的關係。共有十七個花粉收集器於 2008 年三月二十一日至五月十日,設置在北臺灣的北插天山西側。一共鑑定出 37 科 43 屬植物的花粉及孢子。對應分析的結果顯示,十七個樣點依花粉組合可分為三個垂直帶,對應三種不同的植被類型。主要的花粉分類群可分為三種出現型式,普遍出現型、局部出現型及高峰出現型。臺灣水青岡屬於局部出現型,在距離純林 200 公尺以外的花粉通量遠小於純林內的通量。這意味著現生臺灣水青岡族群間不太可能有以花粉為r媒介的基因流。本研究除提供臺灣中海拔一些重要分類群花粉散播的基本資料外,也指出一些在解讀沉積物花粉百分率資料時所需注意的地方。 |
英文摘要 | In this first study on the pollen rain in natural forest in Taiwan using pollen traps, the dispersal patterns of airbornepollen were determined, with emphasis on Fagus hayatae and some major plant species, and the relationship between pollenassemblages and vegetation was elucidated. Seventeen pollen traps were installed on the western slope of Mt. Takai, northernTaiwan, from March 21 to May 10, 2008. Pollen and spores belonging to 37 families and 43 genera were identified. The results ofcorrespondence analysis suggested differentiation of three vertical zones of pollen assemblages that corresponded to threevegetation types. Three patterns of occurrence were identified for the major pollen taxa, namely ubiquitous occurrence, localoccurrence, and peak occurrence. The pollen influx of F. hayatae, a taxon characterized by local occurrence, was remarkably lowerat a distance of over 200 m away from the pure stands. This suggests that pollen-mediated gene flow between the beech populationsin Taiwan is unlikely. Besides providing basic data on the pollen dispersal of some important taxa in the middle altitudes of Taiwan,the present study also points out that caution should be taken in interpreting pollen percentage data from sediments. |
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