[新聞] 獨家》「甲蟲星球」變空城!大坑步道獨角仙被抓光 「蹭飯蜂蝶」也沒了
https://news.ltn.com.tw/news/life/breakingnews/5494973
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許國楨/台中
獨家》「甲蟲星球」變空城!大坑步道獨角仙被抓光 「蹭飯蜂蝶」也沒了
同樣的步道、同樣的光蠟樹,景象卻和往年截然不同。這幾年每逢這段時節,大坑9號步道
幾棵光蠟樹幹上總是爬滿獨角仙,公蟲為了爭奪交配權激烈頂角對決,雌雄則緊緊依附在樹
幹上完成繁殖,一旁還聚集虎頭蜂、長腳蜂、白蛺蝶、豹紋蝶等昆蟲,圍著獨角仙刨開樹皮
後流出的樹汁「蹭飯」,形成大坑夏季最熱鬧的森林盛宴,吸引無數民眾專程朝聖。
然而今年不少遊客再度造訪,眼前卻是一片冷清,昔日被稱為「甲蟲星球」的光蠟樹,如今
獨角仙幾已消失,連過去總會圍繞覓食的蜂類與蝴蝶也明顯減少,彷彿一年一度的「昆蟲Bu
ffet」提前歇業。
一名擔任教職的國小老師指出,獨角仙其實是整個樹汁生態鏈的重要角色。牠們利用特殊口
器輕輕撬開光蠟樹皮,讓甜美樹汁慢慢滲出,自己吸食的同時,也讓虎頭蜂、長腳蜂、豹紋
蝶、白蛺蝶等昆蟲分享剩餘樹汁,因此只要有獨角仙聚集,整棵樹就會形成熱鬧的昆蟲聚落
。
如今獨角仙數量明顯下降,不僅少了最吸睛主角,也讓許多依賴樹汁的昆蟲失去食物來源,
整體生態熱度跟著降低,步道旁還多了一張提醒海報,上頭寫著「獨角仙都被抓走了」,希
望提醒遊客不要任意捕捉,唯有「動眼不動手」,讓牠們留在山林完成繁殖,也才能讓明年
的光蠟樹,再度重現獨角仙開桌、蜂蝶搶食的夏日盛況。
備註:
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