Sensitivity of honeybee hygroreceptors to slow humidity changes and temporal humidity variation detected in high resolution by mobile measurements.
Sensitivity of honeybee hygroreceptors to slow humidity changes and temporal humidity variation detected in high resolution by mobile measurements.
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DOI：
10.1371/journal.pone.0099032
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发表时间：
2014
期刊：
影响因子：
3.7
通讯作者：
Kallina W
中科院分区：
文献类型：
--
作者：
Tichy H;Kallina W
将雄性蜜蜂触角上的湿细胞和干细胞暴露于以-1.5%/s和+1.5%/s之间的速率缓慢上升和下降的湿度中，并且在10至90%的湿度范围内以不同的幅度变化。这两个电池响应于这些缓慢的湿度振荡，其脉冲频率振荡不仅取决于瞬时湿度，而且还取决于湿度变化的速率。将每个电池的脉冲频率绘制为这两个参数的函数，并将回归平面拟合到单个振荡周期的数据点。估计灵敏度的回归斜率随着湿度振荡的幅度而上升。在大振幅振荡期间，湿电池和干电池对瞬时湿度及其变化率的灵敏度都很高。在小振幅振荡期间，它们对这两个参数的灵敏度都很低，不太准确地反映湿度波动。蜜蜂在自然环境中飞行时可能遇到的空间和时间湿度变化是未知的。小气候参数（绝对湿度，温度，风速）进行了测量，从汽车行驶通过不同的景观下奥地利州。景观类型影响极端和平均湿度值。湿度波动的波峰和波谷之间的差异一般较小，在开放的草地或落叶林比边缘生境或森林开口。总体而言，波动幅度较小。在刺激范围的这一部分中，湿感受器灵敏度对于编码瞬时湿度和湿度变化率不是最佳的。蜜蜂的湿度感受器似乎专门用于检测与特定行为相关的大幅波动，即保持足够稳定的水平衡状态。结果表明，两个吸湿器的最佳灵敏度的形状不仅由湿度振荡幅度，但也根据其对行为的影响。
The moist cell and the dry cell on the antenna of the male honeybee were exposed to humidities slowly rising and falling at rates between –1.5%/s and +1.5%/s and at varying amplitudes in the 10 to 90% humidity range. The two cells respond to these slow humidity oscillations with oscillations in impulse frequency which depend not only on instantaneous humidity but also on the rate with which humidity changes. The impulse frequency of each cell was plotted as a function of these two parameters and regression planes were fitted to the data points of single oscillation periods. The regression slopes, which estimate sensitivity, rose with the amplitude of humidity oscillations. During large-amplitude oscillations, moist and dry cell sensitivity for instantaneous humidity and its rate of change was high. During small-amplitude oscillations, their sensitivity for both parameters was low, less exactly reflecting humidity fluctuations. Nothing is known about the spatial and temporal humidity variations a honeybee may encounter when flying through natural environments. Microclimatic parameters (absolute humidity, temperature, wind speed) were measured from an automobile traveling through different landscapes of Lower Austria. Landscape type affected extremes and mean values of humidity. Differences between peaks and troughs of humidity fluctuations were generally smaller in open grassy fields or deciduous forests than in edge habitats or forest openings. Overall, fluctuation amplitudes were small. In this part of the stimulus range, hygroreceptor sensitivity is not optimal for encoding instantaneous humidity and the rate of humidity change. It seems that honeybee's hygroreceptors are specialized for detecting large-amplitude fluctuations that are relevant for a specific behavior, namely, maintaining a sufficiently stable state of water balance. The results suggest that optimal sensitivity of both hygroreceptors is shaped not only by humidity oscillation amplitudes but also according to their impact on behavior.
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影响因子：
3.6
作者：
YOKOHARI, F
通讯作者：
YOKOHARI, F
DOI：
10.1007/bf00333743
发表时间：
1964-01-01
期刊：
ZEITSCHRIFT FUR VERGLEICHENDE PHYSIOLOGIE
影响因子：
--
作者：
LACHER, V
通讯作者：
LACHER, V
DOI：
10.1007/s00359-003-0397-z
发表时间：
2003-03-01
影响因子：
2.1
作者：
Tichy, H
通讯作者：
Tichy, H
DOI：
10.1007/bf00656391
发表时间：
1978-01-01
期刊：
JOURNAL OF COMPARATIVE PHYSIOLOGY
影响因子：
--
作者：
YOKOHARI, F
通讯作者：
YOKOHARI, F
DOI：
10.1007/bf00620495
发表时间：
1976-01-01
期刊：
JOURNAL OF COMPARATIVE PHYSIOLOGY
影响因子：
--
作者：
YOKOHARI, F;TATEDA, H
通讯作者：
TATEDA, H