Unlearned appetite controls: watersnakes (Nerodia) take smaller meals when they have the choice.
Unlearned appetite controls: watersnakes (Nerodia) take smaller meals when they have the choice.
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未知的食欲控制：水蛇（Nerodia）在有选择的时候会吃少量的食物。
DOI：
10.1037/0735-7036.119.3.304
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发表时间：
2005
影响因子：
1.4
通讯作者：
G. Burghardt
中科院分区：
文献类型：
--
作者：
P. Andreadis;G. Burghardt
对哺乳动物食欲的研究强调，进食量是后天习得的，但哺乳期和父母的照顾限制了对幼稚个体的测试。相反，新生的爬行动物是自给自足的觅食者。研究了食草性北方水蛇（Nerodia sipedon）在首次摄食时猎物大小对摄食量的影响。当提供了一个过量的小猎物（2%-20%的蛇质量），新生儿吃显着较小的饭菜（M = 23.5%的蛇质量）比提供一个单一的巨大的项目（范围= 32%-55%）。作者的结论是：（a）少吃一餐不是一种习得效应，（B）可能有一个饱腹感阈值，而不是一个目标，（c）口咽刺激可能提供饱腹感线索，（d）大餐可能有健身成本。
Studies of appetite in mammals emphasize that meal size is learned, but lactation and parental care constrain testing of naive individuals. Neonatal reptiles, in contrast, are self-sufficient foragers. The authors examined the effect of prey size on meal size in primivorous (at first feeding) northern watersnakes (Nerodia sipedon). When offered an excess of small prey (2%-20% of snake mass), neonates ate significantly smaller meals (M = 23.5% of snake mass) than when offered a single huge item (range = 32%-55%). The authors conclude that (a) the taking of smaller meals is not a learned effect, (b) there may be a satiety threshold for meal size rather than a target, (c) oropharyngeal stimuli may provide satiety cues, and (d) huge meals may have fitness costs.
通过幼鼠的口腔习惯来控制摄入。
影响因子：
1.9
作者：
Swithers-Mulvey,SE;Hall,WG
通讯作者：
Hall,WG