金門地區水獺族群之調查研究
本計畫使用行為觀察、自動照相機監測等方法以追蹤估算金門地區水獺之族群狀況，同時嘗試捕捉標放，以及評估用分子技術分析水獺排遺以收取族群資料之可行性。經過測試，上述各種方法雖然都獲致一些初步的成果，但因受限於各種方法本身的優缺點、水獺活動習性，以及環境與人為干擾，目前能夠收集的資料仍極為有限。然而，這些方法若能累積較長時間的資料，應該仍能逐步達到估算水獺族群量與族群狀況之目標，其中尤其以分子技術分析不同個體排遺分佈的方式，對於水獺族群的研究最具潛力，也最值得繼續研究。
Abstract
We used direct observation and automatic cameras to study and monitor the population of Eurasian otter (Lutra lutra) in Kinmen. We also tried to capture otters for radio-tracking study, and evaluate the feasibility of using molecular techniques to study otter population. All of these methods provided preliminary results on otter activity and movement pattern. However, each method has its own advantages and disadvantages in collecting information on otter population. Furthermore, some methods can only accumulate good information on a long-term basis. We discussed the pros and cons of each method in otter population research and suggested that the molecular techniques should be further developed to provide a non-invasive method for otter population study.
Key words: Kinmen, Lutra lutra, population, automatic camera, molecular techniques
Abstract
We used direct observation and automatic cameras to study and monitor the population of Eurasian otter (Lutra lutra) in Kinmen. We also tried to capture otters for radio-tracking study, and evaluate the feasibility of using molecular techniques to study otter population. All of these methods provided preliminary results on otter activity and movement pattern. However, each method has its own advantages and disadvantages in collecting information on otter population. Furthermore, some methods can only accumulate good information on a long-term basis. We discussed the pros and cons of each method in otter population research and suggested that the molecular techniques should be further developed to provide a non-invasive method for otter population study.
Key words: Kinmen, Lutra lutra, population, automatic camera, molecular techniques