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细嘴杓鹬:一种鸟类又又又灭绝了,几个月无人问津,为什么它们 ...
指示性动物,顾名思义,测量它的生境就能反应其它物种的生境,测量它的种群特征就能反应其它物种的种群特征,那么就可以帮助我们在分析其它物种时,大大节约成本。这样的物种就叫做指示种。
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今日热点
Hits correction territory
Ordered to reinstate workers
CDC nomination withdrawn
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200% tariff on EU alcohol?
Texas Tech closes campus
Urges US to move nukes
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Smishing scam warning
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Trump Tower protest
UN report accuses Israel
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Top FDA lawyer resigns
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To test Community Notes
IRS demotes chief counsel
Ditch new stadium deal
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