Ecology of Asiatic Black Bears and Bear-People Interactions in Yushan National Park Ⅲ.
中文摘要
本年度(三)計畫於2001年1至12月間進行,在大分地區,進行黑熊捕捉繫放工作,計設置10個陷阱,78個捕捉籠天,19個取毛陷阱,721個取毛天,然未捕到黑熊,亦未收集到熊毛。由一隻PTT發報器追蹤之個體顯示,其1至8月間在楠梓仙溪林道附近活動,與繫放地點距離約28公里。另由3隻VHF無線電追蹤個體顯示,其活動之直線距離在8-22公里間,活動地點包括多美麗、玉里山區、伊霍霍爾溪、黃麻溪流域及公山地區等。
就的熊日活動模式而言,其個體晝夜都會活動,但以日間為主。若就各月份之日活動模式而言,1月至8月間,平均日活動為0.51(n=34),其中以6月較高,1月較低,無冬眠現象。
由齒堊層判斷黑熊年齡的結果(n=14),顯示以往捕到的熊以成年公熊居多(n=9),其他包括成年雌熊(n=2)、亞成公熊(n=2)、及幼公熊(n=1),若就公熊體重與年齡或體長與年齡的關係來看,其有年齡增加而增長的趨勢,然無顯著差異,而就體重與體長的關係來看,其有顯著差異(p<0.01)。
英文摘要
This third-year study was conducted between Jan. and Dec. 2001. At Dafen in the Park, 10 bear traps (78 trap nights) and 19 hair traps (721 hair collect nights) were set. However, neither bear nor hair was captured. The result of radio-tracking showed that one PTT individual moved at least 28 km and was found in Nan-Tzyy-hsien forest road between Jan. and Aug. The movement of 3 other VHF individuals was between 8-22 km in different areas, such as Duomeili, Yuli Mountain, Yihuohuoer River, and Huangma River watershed area and Kungshan area. The daily activity pattern showed that the bear activity was high (0.71) during the day (6:00-17:30); low (0.22) at night (18:00-5:30), especially the later part of the night (0:00-4:30). The average daily activity budge was 0.51 (n=34) between Jan. and Aug. Bears in June had the highest activity while in January had the lowest and no hibernation could be documented. Age of previously captured bears was determined by cementum annuli analysis. Fourteen individuals were classified as 9 adult male bears, 2 adult females, 2 subadult males and 1 male cub. Both body weight and length were positively correlated with age in male bears, but no significant difference, yet the body weight and length were positively correlated with significant difference (p<0.01).