台南水雉保育有成 2022夏季調查1622比去年又多312隻

2022-08-06   記者莊兆暉/台南報導

台南官田水雉生態教育園區持續推廣友善耕作策略,讓水雉能有更多棲地繁衍,逐漸獲得農友認同,自然生態也反饋,今年夏季水雉繁殖調查結果出爐,水雉族群穩定成長,現有數量為1622隻,又比去年多了312隻。

台南夏季水雉調查總數為1622隻,比去年新增312隻。(官田水雉園區提供)

水雉是台南市「市鳥」,每年有7成以上在官田區被記錄到,其次就是麻豆的8%及下營的7%,今年仍舊以官田、下營增加的隻數最多,麻豆及南關線的歸仁區的族群數量也有明顯成長。

官田水雉園區主任李文珍說,除了這些區域,柳營、六甲、鹽水、山上、新營這些菱角生產區周邊,水雉繁殖族群雖然不多,但仍穩定成長,而安南、白河、學甲、安定等地區雖然有水雉蹤跡,但感覺上還在尋覓適當的繁衍處所。

普查時間正好是酷暑,調查人員相當辛苦。(官田水雉園區提供)

李文珍指出,水雉偏好的棲地類型仍以菱角田為主,雛鳥及蛋的繁殖記錄有83%在菱角田被記錄到,另外在水稻田、草澤等濕地和少數積水的旱地也有記錄到,顯示出水雉會利用多樣性多元化的濕地環境,因此維護生物多樣性非常重要。

官田水雉生態教育園區、特有生物中心生物指標研究室、台南鳥會每年在水雉的繁殖季(夏季)及非繁殖季(冬季)會在台南各進行一次的水雉調查。由於7月底進入繁殖季高峰,活動範圍較固定,調查也最適合,但酷暑就考驗調查員的體力與耐力,為避免中暑有人一早就出門,也有人反映菱角葉折射陽光,看到眼花花,不休息一下可會吃不消。

今年仍以官田最多、麻豆、下營居次。(官田水雉園區提供)

李文珍表示,相比於去年旱象,今年降雨狀況好些,水雉棲地的菱角及水生植物生長狀況都不錯,加上友善耕作的農友及農地面積增加,吸引水雉前往築巢繁衍,今年台南各區幾乎數量都有增長。

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