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首页> 外文期刊>Journal of Comparative Physiology, A. Sensory, Neural, and Behavioral Physiology >Whisker touch guides canopy exploration in a nocturnal, arboreal rodent, the Hazel dormouse (Muscardinus avellanarius)
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Whisker touch guides canopy exploration in a nocturnal, arboreal rodent, the Hazel dormouse (Muscardinus avellanarius)

机译：牙周触摸导游巨篷探索在夜间，树栖啮齿动物，榛子脱鼠（Muscardinus Avellanarius）

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摘要

Dormouse numbers are declining in the UK due to habitat loss and fragmentation. We know that dormice are nocturnal, arboreal, and avoid crossing open spaces between habitats, yet how they navigate around their canopy is unknown. As other rodents use whisker touch sensing to navigate and explore their environment, this study investigates whether Hazel dormice (Muscardinus avellanarius) employ their whiskers to cross between habitats. We analysed high-speed video footage of dormice exploring freely in flat and climbing arenas in near darkness and using infrared light illumination. We confirm that, like rats and mice, dormice move their whiskers back and forth continuously (similar to 10 Hz) in a motion called whisking and recruit them to explore small gaps (< 10 cm) by increasing the amplitude and frequency of whisking and also the asymmetry of movement between the left and right whisker fields. When gaps between platforms are larger than 10-15 cm, dormice spend more time travelling on the floor. These findings suggest that dormice can actively and purposively move their whiskers to gather relevant information from their canopy at night. As this species is vulnerable to threats on the ground, we also provide evidence that joining habitat patches between dormouse populations is important for promoting natural behaviours and movement between patches.
机译：由于栖息地的损失和碎片，英国的Dormouse数字正在下降。我们知道宿舍是夜间，树栖，避免穿越栖息地之间的开放空间，但它们如何在树冠上导航是未知的。由于其他啮齿动物使用晶须触摸感应来导航和探索他们的环境，这项研究调查了榛子宿舍（Muscardinus Avellanarius）是否采用他们的晶须在栖息地之间交叉。我们分析了在近黑暗附近的平面和攀登的山脉自由探索的高速录像，并使用红外光照照明。我们确认，如老鼠和小鼠，宿舍在一个被称为搅拌器的运动中连续（类似于10 Hz）的晶须（类似于10 Hz），并通过增加搅拌器的振幅和频率来探索小的间隙（<10cm），并且左晶须之间的运动不对称。当平台之间的间隙大于10-15厘米时，宿舍花了更多的时间在地板上旅行。这些调查结果表明，宿舍可以积极和有意地移动他们的晶想，晚上从他们的树冠收集相关信息。由于这个物种容易受到威胁的威胁，我们还提供了证据，即加入宿舍群体之间的栖息地斑块对于促进自然行为和斑块之间的运动很重要。

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