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標題: 台灣省都會與鄉村老樹之伴生動植物
Companion Biota at the Urban and Rural Giant Trees in Taiwan Province
作者: 陳瑩娟
Chen, Ying-Juan
關鍵字: Giant tree
dependent plant
accompanying animal
出版社: 植物學系
摘要: 珍貴老樹是指胸高直徑 1.5公尺以上,或樹齡一百年以上之樹木。初步統 計台灣省都會與鄉村地區之老樹有885棵,含括 24科49種,其中台灣梭羅 木為稀有種。株數以榕樹(365),茄苳(129)﹑朴樹(111)較多。在 455株老樹上所記錄到的維管束依附植物共計有41科 74屬 94種,以水龍 骨科、桑科和蘭科植物最多,以抱樹石葦、抱樹蕨和雀榕最常見。蕨類中 的小垂枝石松以及蘭科的假腎藥蘭與厚葉風蘭是稀有植物,應加以保育。 老樹之依附植物按依附類型計有著生植物 69種﹑攀緣植物 17種﹑纏勒植 物 6種以及半寄生植物 2種。利用卡方測定依附植物與樹種之關聯性,發 現依附植物對附主的選擇沒有絕對的專一性,但是較偏好茄苳、樟樹和楓 香,較不偏好榕樹和朴樹。動物中,昆虫與老樹之關係尤其複雜,有停棲 、營巢、捕食、寄生、授粉和侵害等關係。在中部地區五種樣株誘捕的昆 虫數量中,雙翅目占 56%,同翅目占 25%,膜翅目占 14%。每一棵樣 株的昆虫歧異度指數都很高,顯示老樹能承載豐富的昆虫相,在人為開發 環境中形成一個特殊的生物島。
Trees with DBH greater than 1.5m or older than 100 years are classified as protected giant trees. 885 giant trees, belonging to 24 families and 49 species, were found at urban and rural areas of Taiwan Province. Among them, Ficus microcarpa, Vascular dependent plants at 455 giant trees were investigated. 94 species were recorded, in which 69 are epiphytes, 17 are climbers, 6 are stranglers, and 2 are hemiparasites. Polypodiaceae, Moraceae and Orchidaceae are common families. Lycopodium salvinioides , Armodorum labrosum and Thrixspermum subulatum are rare species. More dependent plants exist on Bischofia javanica, Cinnamomum camphora,and Liquidambar formosana,comparing to those on Ficus microcarpa and Celtis sinensis. Complicated relationships, including perching, nesting, predating, parasitism and pollination, exist between insects and giant trees. Among all the insects trapped by yellow sticky papers from 5 giant trees in central Taiwan, 56﹪ are Diptera, 25﹪ are Homoptera,14% are Hymenoptera.All trees carry high diversity of insects.Each giant tree serves as the niche of biotic island in disturbed environment.
Appears in Collections:生命科學系所



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