借由糞便氮含量再評估墾丁台灣梅花鹿(Cervus nippon taiouanus)的營養攝取

Re-evatution of the Nutrition Intake Based on Fecal Nitrogen Content for the Formosan Sika Deer(Cervus nippon taiouanus) in Kenting

林亭如(Lin Ting-Ju)

指導教授 ： 裴家騏

國立屏東科技大學/獸醫學院/野生動物保育研究所/碩士(2022年)

https://doi.org/10.6346/NPUST202200045

摘要

自1984年開始的台灣梅花鹿（Cervus nippon taiouanus）復育計畫，現在已成功在墾丁國家公園內建立了野生且持續成長的梅花鹿族群。本團隊在2003年野鹿數量尚少時，曾分析過糞便氮元素含量，以評估當時野生鹿群的攝食品質。該研究結果顯示，野鹿的攝食品質維持在理想且全年穩定的狀態。現今野鹿的數量和密度都已大幅增加，而高族群量常會使族群平均的攝食品質下降，因此有必要再度評估墾丁梅花鹿復育族群的攝食品質現況。本研究自2020年3月至2021年2月，於社頂高位珊瑚礁生態保護區和水蛙窟大草原兩個樣區採集梅花鹿的排遺進行氮含量分析。結果顯示，兩個樣區的梅花鹿群糞便氮含量年平均皆為1.78%，顯著低於2003年野生鹿群的2.00%，顯示攝食品質雖然仍能滿足鹿隻的基本生存所需，但已有降低的現象。持續的攝食營養評估，將是台灣梅花鹿長期族群復育與經營管理策略擬定的重要依據。

關鍵字

糞便氮元素含量 ； 攝食品質 ； 高位珊瑚礁 ； 水蛙窟 ； 社頂

並列摘要

The Formosan sika deer (Cervus nippon taiouanus) restoration project, which started in 1984, has successfully established a wild and growing sika deer population in the Kenting National Park. When the number of wild deer was still small in 2003, we analyzed the nitrogen content of feces to assess the nitrogen intake consumed by the wild deer at that time. The results of the study showed that the nitrogen intake of wild deer was maintained at an ideal and stable state throughout the year. Nowadays, the number and density of wild deer have greatly increased, and high populations often reduce the nitrogen intake of animals. Therefore, it is necessary to reassess the nutrition status of sika deer population in Kenting. In this study, from March 2020 to February 2021, the excretion of sika deer was collected in the Shirding Uplifted Coral Reef Nature Reserve and Shuiwaku Prairie for nitrogen content analysis. The results showed that the average annual nitrogen content of sika deer herd in the two sample areas was 1.78%, which was significantly lower than the 2.00% of the wild deer in 2003, indicating that although the nutrition status can still maintain the basic needs of deer and it has been reduced. Continuous evaluation of nitrogen intake will be an important basis for the formulation of long-term population rehabilitation and management strategies for Formosan sika deer.

並列關鍵字

fecal nitrogen content ； nutritional intake ； uplifted coral reef ； Shuiwaku ； Sheding

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