頁籤選單縮合
題名 | Distribution of the Hairy-footed Flying Squirrel (Belomys Pearsonii) in Taiwan, a GIS Approach=以地理資訊系統探討臺灣地區小鼯鼠(Belomys pearsonii)之分布 |
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作者 | 李培芬; | 書刊名 | Acta Zoologica Taiwanica |
卷期 | 9:2 1998.07[民87.07] |
頁次 | 頁81-92 |
分類號 | 389.62 |
關鍵詞 | 小鼯鼠; 飛鼠; 地理資訊系統; 動物分布圖; Belomys pearsonii; Flying squirrel; GIS; Species distribution map; |
語文 | 英文(English) |
中文摘要 | 本研究利用地理資訊系統探討小鼯鼠(Belomys pearsonii)於台灣之分布情形。野外調查於1981年9月至1983年6月於台大實驗林溪頭營林區內進行,小鼯鼠全島之分布,則利用彙整發表於1977∼1995年間之野生動物研究報告,配合生態與環境因子資料庫,進行分析,並以logistic regression推估其可能的分布範圍。 結果顯示小鼯鼠在溪頭地區之數量甚低,在 20 個月的調查中,僅有14次發現紀錄,這些發現均出現於森林內,但出現於針葉人工林之次數遠高於闊葉天然林。小鼯鼠之出現區域,大多與大赤鼯鼠和白面鼯鼠之出現區域重疊,但整體之出現量較少;小鼯鼠之分布與中央山脈之走向一致。利用logistic regression之建立之預測模式,顯示此模式僅能正確地預測48%小鼯鼠之出現,但就預測機率之空間分布而言,則與已知之分布情形類似。有關小鼯鼠之保育工作,建議以更多之資源調查與監測計畫,建立更完善之資訊,以為決策之基礎。 |
英文摘要 | I studied the distribution pattern of the rare hairy-footed flying squirrel (Belomys pearsonii) in Taiwan by integrating a field survey conducted at Chitou, an experimental forest of National Taiwan University, between September 1981 and June 1983 and wildlife distribution and ecological and environmental databases. Results indicate that the population size of B. pearsonii at Chitou was small. In the 20-mo survey, there were only 14 scattered sightings in both man-made and natural forest types. Large-scale distribution of B. pearsonii was extracted from a wildlife distribution database which was compiled from literature published between 1977 and 1995, and mapped using a geographic information system (GIS). Most of the distribution range of B. pearsonii in Taiwan overlapped those of two species of giant flying squirrels (Petaurista spp.). The spatial distribution of B. pearsonii roughly follows the north-south axis of the Central Mountain Range, but distribution records are scarce and scattered. Although the accuracy for predicting the presence of B. pearsonii using a logistic regression model is moderate (48%), the predicted probabilities of occurrence suggest a spatial pattern that resembles the known distribution. More inventory and monitoring studies are necessary to determine the conservation status of this species. The information in this report can serve as a foundation for protecting this rare squirrel. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。