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生態

109-110年度玉山國家公園塔塔加地區中大型草食性哺乳動物組成與植被消長關係調查計畫

The Species Composition and the Impacts on Vegetation of Medium to Large Herbivorous Mammals at Tataka in Yushan National Park, 2020-2021
中文摘要
自2020年2月至2021年8月,共記錄14種哺乳動物、29種鳥類,中大型草食動物以山羌的出現指數最高,臺灣水鹿次之,臺灣野山羊最低。臺灣水鹿的主要活動時段為 18 時至隔日5時,山羌與臺灣野山羊的活動模式類似,晨昏時段活動較頻繁。疫情警戒期間臺灣水鹿 OI值顯著增加,跟人類活動重疊的相機點OI 值有顯著上升;山羌OI 值顯著增加,相對活動量在上午及下午時段都有所增加;臺灣野山羊全日皆有活動行為。塔塔加地區臺灣水鹿對樹種及 DBH 大小具有啃磨偏好性;偏好樹種以高山鴨腳木及玉山假沙梨受啃磨,DBH 以 5-25cm 為臺灣水鹿喜愛啃磨之大小。玉山林道兩旁樣木啃磨率分別26.55%(2019年)、39.64%(2020年)、51.53%(2021年),顯示臺灣水鹿對林道啃磨壓力持續增加。研究團隊共計檢出8種寄生蟲。此外,塔塔加地區臺灣水鹿糞堆有疑似塑膠纖維存在。
英文摘要
From February 2020 to August 2021, recording 14 species of mammals and 29 species of birds. Muntiacus reevesi (Reeves's muntjac) had the highest activity index, followed by Formosan sambar. Formosan sambar has nocturnal activities with an activity peak at 7:00- 8:00 pm, while Reeves's muntjac and Naemorhedus swinhoei (Formosan serow) activity period were all day with activity peaks at both 5:00 to 6:00 am and 5:00-6:00pm.Combined the results of long-term monitoring plots, surveys along the road-side and belt transect surveys, the Formosan sambars had a preference for tree species and DBH size of bark stripping and antler rubbing. Schefflera taiwaniana and Photinia niitakayamensis were the most two favorite tree species of gnawing pressure. Moreover, the tree sizes from DBH 5- 25cm the size was prefered by Formosan sambars. The rate of debarking along the Yushan forest road has increased significantly. The research team collected 300 dung heap samples, of which 35 were detected with parasitic infections, all of which were from Formosan sambars. The parasites detected included Strongyloides sp., Oesophagostomum radiatum, Cooperia pectinita, Eurytrema pancreaticum, Ascaris equorum, Strongyloides papillosus, and two unknown species of nematode egg. Besides, fibers were found in the dung heap samples of Formosan sambar, and the researchs suspected that were plastic fibers.
基本資料
  • 計畫編號: 1336
  • 辦理方式: 委託辦理
  • 主管機關: 玉山國家公園管理處
  • 計畫期間: 109年1月至110年12月
  • 執行機關: 國立中興大學
  • 年度: 110
  • 計畫經費: 172萬5,000元
  • 領域: 自然生態保育
  • 主持人: 曾喜育
  • 中文關鍵字: 臺灣水鹿、啃食樹皮、選擇性
  • 英文關鍵字:Rusa unicolor swinhoei, bark stripping, selectivity