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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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