The feeding behavior of a polyphagous caterpillar (Diacrisia virginica) in its natural habitat
The feeding behavior of a polyphagous caterpillar (Diacrisia virginica) in its natural habitat
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多食性毛虫（Diacrisia virginica）在自然栖息地的摄食行为
DOI：
10.1139/z88-187
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发表时间：
1988
影响因子：
1.4
通讯作者：
V. G. Dethier
中科院分区：
文献类型：
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作者：
V. G. Dethier
地面毛熊毛虫Diacrisia virginica占据了一个以低洼的杂类草，草和莎草为特征的栖息地，在那里它以100多种植物为食。其视觉和嗅觉的有效范围很短，将其识别植物的距离限制在1厘米或更短。 毛毛虫随意地蜿蜒而行，误闯到食物植物中。由于栖息地的密集和复杂的植被纹理，在现场的随机运动，以及杂食性的饮食的毛毛虫，只有一小部分的时间需要花在徘徊（2%）。超过90%的时间用于不活动，代表餐后和小道休息。膳食的大小是由剥夺的状态，并修改的位置，植物的层次结构中的可接受性。随着饥饿的加剧，幼虫变得不那么挑剔，因此很少经历急性饥饿。植物在维持毛虫的生存和最佳生长方面的有效性是…
The ground-dwelling woolly bear caterpillar Diacrisia virginica occupies a habitat characterized by low-lying forbs, grasses, and sedges where it feeds on more than 100 species of plants. The short effective range of its visual and olfactory senses restricts to 1 cm or less the distance from which it can recognize plants. Caterpillars meander randomly and blunder into food plants. Because of the dense and complex vegetational texture of the habitat, the random locomotion in the field, and the omnivorous diet of the caterpillars, only a small proportion of time need be spent wandering (2%). More than 90% of the time is devoted to inactivity which represents postprandial and trail resting. Meal size is regulated by state of deprivation and is modified by the position of the plant in the hierarchy of acceptability. With increasing deprivation larvae become less finicky and therefore seldom experience acute starvation. The effectiveness of plants in sustaining survival and optimal growth of caterpillars is on...