報道要點

安省自然資源部門表示,全省駝鹿數量較2000年代初減少約20%,部分北部地區降幅超過50%。Thunder Bay附近第13野生動物管理區的研究自2024年展開,過去兩年給逾200頭駝鹿安裝GPS或影像追蹤設備,調查捕食、健康、道路及林業等因素。當地研究不能直接代表全省每一地區。

背景與具體影響

研究團隊估計,幼崽約三分之一活過第一年,成年雌鹿年存活率約95%、雄鹿約70%。追蹤個體中已有36頭死亡:成年雄鹿常見車輛碰撞及狩獵,幼鹿較常受捕食,成年雌鹿則多有尚待化驗釐清的健康問題。減少狩獵許可後數量仍未明顯回升,顯示原因並非單一。

仍需留意

保育組織提出高溫、棲地變化及鹿種關係等解釋,獵人亦擔憂林業除草劑;這些意見並非本項目已證實的全部因果。團隊說研究區未見冬季蜱蟲明顯異常。後續實驗與化驗結果將影響管理方向,報道沒有宣佈全面撲殺捕食者或新的狩獵規則。

來源:CBC News 原報道。大魚新聞整理原創中文摘要;保留原網頁刊發日期。

安省駝鹿數量下降,研究調查捕食、疾病和車輛碰撞等壓力。Amir Said/CBC。

安省駝鹿數量下降,研究調查捕食、疾病和車輛碰撞等壓力。Amir Said/CBC。

Ministry research scientist Nick Luymes provides presentation on moose population study during the recent Northern Ontario Tourism Summit in Sault Ste. Marie. (Alex Flood/CBC)

Ministry research scientist Nick Luymes provides presentation on moose population study during the recent Northern Ontario Tourism Summit in Sault Ste. Marie. (Alex Flood/CBC)

A moose is collared as part of the ministry's ongoing study near Thunder Bay. (Ontario Fish and Wildlife)

A moose is collared as part of the ministry's ongoing study near Thunder Bay. (Ontario Fish and Wildlife)

Moose populations in Ontario are down despite there being fewer hunting tags than in previous years, according to the province. (CBC)

Moose populations in Ontario are down despite there being fewer hunting tags than in previous years, according to the province. (CBC)

Jeremy Coulis and his friends enjoy hunting for moose north of Aubrey Falls every fall. (Submitted by Jeremy Coulis)

Jeremy Coulis and his friends enjoy hunting for moose north of Aubrey Falls every fall. (Submitted by Jeremy Coulis)