- shelduck; shelduke; sheldrake
◇麻鸭属 tadorna
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麻鸭的英文
例句与用法
- In summer the sheldrakes and bar - headed geese dwell on the lake while the black - necked cranes gather here to spend winter
夏日湖面上有麻鸭、斑头雁游憩；冬天，成群的黑颈鹤栖息在这里。 - In april , tens of kinds of migrants such as brown - headed gulls , cormorants , swans , etc . from south china , southeast asia and other places come to multiply here
每年四月，来自我国南方和东南亚等地的斑头雁棕头鸥赤麻鸭鸬鹚等十多种候鸟在这里繁衍生息。 - The zone is characteriwed by producing electric tools and micro - motors which are bound to give an impetus to the relevant industries in order to form an advanced production and development center of electric tools and micro - motors inthe world
12鸭业生态示范区该区规划面积400亩，重点以三大名鸭之一的高邮麻鸭的保种繁育加工为主。 - Phylogenetic analysis surports that anseranas should be placed in monotypic family anseranatidae , and the whistling ducks and the white - backed duck should be separated from subfamily anserinae and placed them into family dendrocygnidae . the family anatidae could be classified into two subfamilies , anserinae and anatinae . the results approve that the swans should be put into the tribe cygnini of subfamily anserinae as suggested by livezey ( 1996 , 1997b ) and the shelducks should be placed in the tribe tadornini of subfamily anatinae , therefore , our results do not support sibley and ahlquist ' s ( 1990 ) establishment of the subfamily cygninae and placing the shelducks in the tribe anserini
研究结果表明： 1 )雁形目鸟类12srrna基因有较多的碱基插入和缺失，碱基转换数高于颠换数； 2 )赞同将鹊鹅( anseranas )置于鹊鹅科( anseranatidae )中，树鸭( dendrocygna )应从雁亚科( anserinae )中独立出来设立树鸭科( dendrocygnidae ) ，白背鸭( thalassornis )隶属于树鸭科； 3 )鸭科( anatidae )可分为雁亚科和鸭亚科( anatinae ) 2个亚科，不赞同sibley & ahlquist ( 1990 )设立天鹅亚科( cygninae )及将麻鸭归入雁族( anserini )的观点，支持livezey ( 1996a ， 1997b )的观点建议将天鹅类归为雁亚科天鹅族( cygnini ) ，麻鸭置于鸭亚科下麻鸭族； 4 )在鸭亚科内的系统发生上，潜鸭最早分歧出来，麻鸭、海中文摘要鸭及栖鸭彼此iaj的亲缘关系较近；河鸭族为一单系发生群，在系统演化中形成独立的一支。