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src=\"https://x0.ifengimg.com/ucms/2023_45/F76DB54AFA65F9A0C7FC8500FE14401A1B2D8EF4_size228_w800_h463.jpg\" />\u003c/p>\u003cp>全世界的天鵝共有七種,它們是疣鼻天鵝、黑天鵝、黑頸天鵝、黑嘴天鵝、大天鵝、小天鵝和扁嘴天鵝。我國有鼻天鵝、小天鵝和大天鵝分布。鄱陽湖越冬的多為小天鵝,偶見大天鵝。11月10日在鄱陽湖發(fā)現(xiàn)5只黑天鵝,疑為逃逸個體。有關(guān)部門將對這5只黑天鵝進(jìn)行跟蹤觀察。\u003c/p>\u003cp>\u003cimg src=\"https://x0.ifengimg.com/ucms/2023_45/451C9B24EE2F37AE998E1C0418A2DACE39DFD95C_size276_w800_h800.jpg\" />\u003c/p>\u003cp>黑天鵝是雁形目中的一種大型游禽,棲息于海岸、海灣、湖泊等水域,以各種水生植物、藻類以及水生小動物為食,常成群結(jié)隊(duì)活動。黑天鵝原產(chǎn)于澳大利亞,包括塔斯馬尼亞。主要活動在澳洲西南部、南部、東部地區(qū)。后引進(jìn)至西班牙、英國和部分西歐國家,有少數(shù)游蕩的黑天鵝活動在印度尼西亞以及新幾內(nèi)亞。在中國和日本均有養(yǎng)殖,近年來廣泛分布在許多城市的各類濕地生態(tài)系統(tǒng)中。其中,北京圓明園遺址公園等地分布的黑天鵝種群數(shù)量已形成一定規(guī)模。江西鄱陽湖周邊的南昌艾溪湖和鄱陽縣鄱陽湖濕地公園等地有養(yǎng)殖黑天鵝。\u003c/p>\u003cp>\u003cimg src=\"https://x0.ifengimg.com/ucms/2023_45/4EA424A3C61DEEE54AD6332B08D3956D64811C89_size172_w799_h533.jpg\" />\u003c/p>\u003cp>\u003cimg src=\"https://x0.ifengimg.com/ucms/2023_45/BDACB23DDECB356FEE5BEB946C7689D508A40423_size123_w1706_h1280.jpg\" />\u003c/p>\u003cp>\u003cstrong>小知識:“黑天鵝”事件\u003c/strong>\u003c/p>\u003cp>“黑天鵝”事件('Black swan' incidents),是指難以預(yù)測,但突然發(fā)生時會引起連鎖反應(yīng)、帶來巨大負(fù)面影響的小概率事件。它存在于自然、經(jīng)濟(jì)、政治等各個領(lǐng)域,雖然屬于偶然事件,但如果處理不好就會導(dǎo)致系統(tǒng)性風(fēng)險,產(chǎn)生嚴(yán)重后果 ?!盎蚁!笔录桥c“黑天鵝”事件相互補(bǔ)足的概念,“灰犀牛事件”是太過于常見以至于人們習(xí)以為常的風(fēng)險,“黑天鵝事件”則是極其罕見的、出乎人們意料的風(fēng)險。(戴年華 章峰)\u003c/p>","type":"text"}],"currentPage":0,"pageSize":1},"editorName":"李夢麗","faceUrl":"http://ishare.ifeng.com/mediaShare/home/1445289/media","vestAccountDetail":{},"subscribe":{"type":"vampire","cateSource":"","isShowSign":0,"parentid":"0","parentname":"社會","cateid":"1445289","catename":"大江網(wǎng)","logo":"http://d.ifengimg.com/q100/img1.ugc.ifeng.com/newugc/20190507/9/wemedia/f4e473c47df4f9b3ff9684c4d462b40ebdbf88ea_size64_w200_h200.png","description":"大江網(wǎng)是全國重點(diǎn)新聞網(wǎng)站","api":"http://api.3g.ifeng.com/api_wemedia_list?cid=1445289","show_link":1,"share_url":"https://share.iclient.ifeng.com/share_zmt_home?tag=home&cid=1445289","eAccountId":1445289,"status":1,"honorName":"","honorImg":"","honorImg_night":"","forbidFollow":0,"forbidJump":0,"fhtId":"4000000042896870624","view":1,"sourceFrom":"","declare":"","originalName":"","redirectTab":"article","authorUrl":"https://ishare.ifeng.com/mediaShare/home/1445289/media","newsTime":"2023-11-11 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鄱陽湖發(fā)現(xiàn)5只黑天鵝
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鄱陽湖發(fā)現(xiàn)5只黑天鵝

2023年11月10日上午10時許,在南昌市新建區(qū)南磯鄉(xiāng)鄱陽湖秋子湖鳳尾湖發(fā)現(xiàn)5只黑天鵝。

全世界的天鵝共有七種,它們是疣鼻天鵝、黑天鵝、黑頸天鵝、黑嘴天鵝、大天鵝、小天鵝和扁嘴天鵝。我國有鼻天鵝、小天鵝和大天鵝分布。鄱陽湖越冬的多為小天鵝,偶見大天鵝。11月10日在鄱陽湖發(fā)現(xiàn)5只黑天鵝,疑為逃逸個體。有關(guān)部門將對這5只黑天鵝進(jìn)行跟蹤觀察。

黑天鵝是雁形目中的一種大型游禽,棲息于海岸、海灣、湖泊等水域,以各種水生植物、藻類以及水生小動物為食,常成群結(jié)隊(duì)活動。黑天鵝原產(chǎn)于澳大利亞,包括塔斯馬尼亞。主要活動在澳洲西南部、南部、東部地區(qū)。后引進(jìn)至西班牙、英國和部分西歐國家,有少數(shù)游蕩的黑天鵝活動在印度尼西亞以及新幾內(nèi)亞。在中國和日本均有養(yǎng)殖,近年來廣泛分布在許多城市的各類濕地生態(tài)系統(tǒng)中。其中,北京圓明園遺址公園等地分布的黑天鵝種群數(shù)量已形成一定規(guī)模。江西鄱陽湖周邊的南昌艾溪湖和鄱陽縣鄱陽湖濕地公園等地有養(yǎng)殖黑天鵝。

小知識:“黑天鵝”事件

“黑天鵝”事件('Black swan' incidents),是指難以預(yù)測,但突然發(fā)生時會引起連鎖反應(yīng)、帶來巨大負(fù)面影響的小概率事件。它存在于自然、經(jīng)濟(jì)、政治等各個領(lǐng)域,雖然屬于偶然事件,但如果處理不好就會導(dǎo)致系統(tǒng)性風(fēng)險,產(chǎn)生嚴(yán)重后果 ?!盎蚁!笔录桥c“黑天鵝”事件相互補(bǔ)足的概念,“灰犀牛事件”是太過于常見以至于人們習(xí)以為常的風(fēng)險,“黑天鵝事件”則是極其罕見的、出乎人們意料的風(fēng)險。(戴年華 章峰)