FEEDING ECOLOGY OF THE EARLIEST VERTEBRATES
FEEDING ECOLOGY OF THE EARLIEST VERTEBRATES
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DOI：
10.1111/j.1096-3642.1984.tb00643.x
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发表时间：
1984-01-01
影响因子：
2.8
通讯作者：
MALLATT, J
中科院分区：
文献类型：
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作者：
MALLATT, J
根据原脊索动物和现存的鱼类，最早的古生代脊椎动物是微食性悬浮食性动物，它们非常缓慢地泵送携带食物的水，因此需要高度浓缩的悬浮液。这种情况存在于底栖（非开放水域）水生环境中。在现存鱼类的基础上，与底栖微食性悬浮摄食密切相关的摄食方式有沉积物摄食、附肢藻刮食和巨噬悬浮摄食；据预测，早期的无颌脊椎动物包括了所有这些进食类型。据预测，啮齿病是在最初从以悬浮液为食转变为以微小的单个食物颗粒为食（微噬悬浮液进食）之后发生的。小食性微粒食性。macrophagous particulate-feeding)。
Based on protochordates and extant fish, the earliest Paleozoic vertebrates were microphagous suspension-feeding animals that pumped food-carrying water very slowly and thus required highly concentrated suspensions. Such conditions exist in benthic (not open water) aquatic environments. Feeding modes which on the basis of extant fish are closely related to benthic microphagous suspension feeding include deposit feeding, epilithic algal scraping, and macrophagous suspension feeding; early jawless vertebrates are predicted to have included all these feeding types. The gnathostome condition is predicted to have followed an initial switch from feeding on suspensions to taking tiny individual food particles (microphagous suspension-feeding .fwdarw. microphagous particulate-feeding .fwdarw. macrophagous particulate-feeding).