FOOD SOURCE ORIENTATION AND ACTIVITY IN RHODNIUS-PROLIXUS STAL (HEMIPTERA, REDUVIIDAE)
FOOD SOURCE ORIENTATION AND ACTIVITY IN RHODNIUS-PROLIXUS STAL (HEMIPTERA, REDUVIIDAE)
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DOI：
10.1017/s0007485300010555
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发表时间：
1982-01-01
影响因子：
1.9
通讯作者：
NUNEZ, JA
中科院分区：
文献类型：
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作者：
NUNEZ, JA
实验记录了长尾瓢虫5龄若虫在实验刺激下的运动活动和定向运动。天然食物来源（仓鼠或人类前臂）是最具吸引力的刺激。对于远距离定向来说，仅靠温暖是最不刺激的。和蚊子一样，二氧化碳和湿气以及仓鼠的气味都很有吸引力。乳酸对取向作用不明显。不同刺激的激活在昼夜节律周期的暗相位最为明显。在持续的黑暗中无昼夜节律活动2周。刺激引起的运动活动，在动脑涉及到利用气流定向的滑行机制的切换。
Locomotor activity in an actograph and oriented locomotor movements in an olfactometer were recorded for 5th-instar nymphs of R. prolixus Stal exposed to test stimuli expected to elicit food-seeking behavior. A natural food source (hamster or human forearm) was the most attractive stimulus. Warmth alone was least stimulating for long-range orientation. As with mosquitoes, CO2 and moisture was attractive, as well as the odor of a hamster. Lactic acid did not play an important role in orientation. Activation by the different stimuli was most pronounced during the scotophase of the circadian cycle. Circadian activity ran-free for 2 wk in constant darkness. The stimuli that elicit locomotor activity in the actograph are implicated in the switching of the taxis mechanisms that utilize the airstream for orientation.