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新发现:早渐新世食蚜蝇精准拟态黄蜂,揭示拟态进化新线索
在现代生态系统中,雀形目鸟类(Passeriformes)被认为是黄蜂拟态的主要选择者。然而,在早渐新世的欧洲,雀形目鸟类却非常罕见。那么,在那个时期,是什么因素促使了这种高度精准的拟态形成呢?研究人员推测,选择最早已知的高度精准黄蜂拟态者的可能是 Coraciimorphae 和 Apodiformes ...
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