HKBWS BBS 香 港 觀 鳥 會 新 聞 組    Special Topics 特別主題    Swifts and Swallows 燕與雨燕 (Moderator: BBS Moderators)    How chubby young birds lose fat to fly 樓燕也減肥 « Previous topic | Next topic » Pages: 1  Reply Send Topic Print    Author  Topic: How chubby young birds lose fat to fly 樓燕也減肥  (Read 1172 times) Webcreeper BBS Member BBS God I'm a webcreeper     Gender: Posts: 1031 How chubby young birds lose fat to fly 樓燕也減肥 « on: Apr 5th, 2006, 11:18pm » Quote Modify 5/4/06 New Scientist 英國《新科學家》雜誌   挪威的科學研究發現，未離巢的樓燕（Common Swift）雛鳥身體會儲存較多的脂肪，以備親鳥餵食不均勻時仍可以繼續發育。但是當幼鳥離巢的時候，牠們的體重和翼展比例都非常劃一，原來雛鳥離巢前會自動節食減肥，甚至會做「掌上壓」來控制體重。     How chubby young birds lose fat to fly   Gaia Vince     Young swifts may do “special push-ups” to shed their puppy fat and become aerodynamically perfect before their first flight, a new study suggests.   In common with infants of other species, swift nestlings are chubby – their fat stores provide useful energy reserves that allow the birds to continue growing through any gaps in parental feeding.     燕子組的朋友請留意，看看本地的雨燕會不會做掌上壓。 Logged 　　　　　　　>}o-}o-　　　>}o-　　　　　　　　　>}o-　　　　.......x Pages: 1  Reply Send Topic Print Forum Jump: ----------------------------- Announcement 簡訊通告 -----------------------------  - Membership Affair 會員事務   - Outings / Activities 戶外活動 / 講座   - Projects 項目計劃   - Crested Bulbul Club 紅耳鵯俱樂部 ----------------------------- Discussion Area 討論區 -----------------------------  - General 一般問題   - Conservation 自然保育   - Bird Identification 鳥類辨識   - Birding Reports & Tips 觀鳥報告及心得   - Photo Gallery 相片分享 I   - Photo Gallery 相片分享 II ----------------------------- Special Topics 特別主題 -----------------------------  - Wild Birds & Avian Flu 野鳥與禽流感   - Sustainable Management Scheme in Long Valley 塱原可持續生態管理計劃   - Black-faced Spoonbill 黑臉琵鷺   - Goodbye Penfold 告別彭福   - Tern Conservation 燕鷗保育   - Black-eared Kite 鳶(麻鷹) => Swifts and Swallows 燕與雨燕   - China Birdwatching Network 中國觀鳥活動網絡   - Winter Altas Survey 冬季鳥類普查   - Nature Conservation Policy 自然保育政策 ----------------------------- Knowledge Sharing 知識分享 -----------------------------  - FAQ 常見問題   - Archive 資料重溫 « Previous topic | Next topic »

香 港 觀 鳥 會
Hong Kong Bird Watching Society

Best viewed with IE 6.0 or Netsacpe 7.0: