Prey processing in lizards: behavioral variation in sit-and-wait and widely foraging taxa
Prey processing in lizards: behavioral variation in sit-and-wait and widely foraging taxa
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蜥蜴的猎物处理：静坐和广泛觅食类群的行为变化
DOI：
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发表时间：
2002
期刊：
影响因子：
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通讯作者：
S. Reilly
中科院分区：
文献类型：
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作者：
L. McBrayer;S. Reilly
我们利用12个物种的广泛系统发育样本，确定了蜥蜴处理(即咀嚼)和操纵猎物的程度。确定了两种运输行为和两种咀嚼行为。运输行为包括猎物的侧向运动和语言中介的后方运动。咀嚼行为包括穿孔挤压和一种以前未描述的行为，我们称之为腭裂。鬣蜥(坐着等待的捕食者)比独齿蜥蜴(广泛觅食的捕食者)从事更多的挤压腭部的行为。然而，鬣蜥在每次进食时的咀嚼和运输行为周期也较少。自舌蜥蜴广泛使用穿刺式挤压，在一轮比赛中使用的行为序列(在咀嚼行为中穿插运输行为)表现出更多的变异性。剔除系统发育的影响后，三种行为(穿刺法、穿刺法、总体法)被证明是共同进化的。进食的变化。
We determined the degree to which lizards process (i.e., chew) and manipulate their prey, using a phylogenetically broad sample of 12 species. Two transport and two chewing behaviors were identified. The transport behaviors included side-to-side movements and lingually mediated posterior movements of the prey. Chewing behaviors included puncture crushing and a previously undescribed behavior we term palatal crushing. Iguanian lizards (sit-and-wait predators) engaged in more palatal-crushing behaviors than autarchoglossans (widely foraging predators) did. However, iguanians also engaged in fewer cycles of chewing and transport behaviors per feeding bout. Autarchoglossan lizards used puncture crushing extensively and exhibited more variability in the sequence of behaviors used within a bout ( interspersion of transport behaviors among chewing behaviors). Three behaviors (puncture crushing, interspersion, total) were shown to be coevolving after the effects of phylogeny were removed. The variation in feeding...