EFFECTS OF ENHANCED LIGHTING ON THE BEHAVIOR OF NOCTURNAL FROGS
EFFECTS OF ENHANCED LIGHTING ON THE BEHAVIOR OF NOCTURNAL FROGS
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DOI：
10.1006/anbe.1993.1109
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发表时间：
1993-05-01
期刊：
影响因子：
2.5
通讯作者：
BUCHANAN, BW
中科院分区：
文献类型：
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作者：
BUCHANAN, BW
研究无尾两栖动物的生物学家通常认为，人造可见光不会影响夜间活动的青蛙的行为。这一假设在实验室实验中得到了验证。在环境光（相当于明亮的月光，0·003 lx）、红光（4·1 lx）、低强度“白色”光（3·8 lx）和高强度"白色"光（12·0 lx）4种光照条件下，比较了灰树蛙（Hyla chrysoscelis）的觅食行为。选择的治疗方法对应于青蛙行为的现场观察的标准方法。在四个处理中的青蛙的觅食行为观察使用红外线，是不可见的青蛙。青蛙的能力，以检测，并随后消耗猎物显着降低下所有的增强光处理相对于环境光处理。因此，在青蛙眼睛的可见光谱内使用人造光可以影响夜间行为观察的结果。这些结果导致建议无尾目生物学家在青蛙视觉能力的变化可能影响研究得出的结论时使用红外线或光放大装置。
Biologists studying anuran amphibians usually assume that artificial, visible light does not affect the behaviour of nocturnal frogs. This assumption was tested in a laboratory experiment. The foraging behaviour of grey treefrogs,Hyla chrysoscelis, was compared under four lighting conditions: ambient light (equivalent to bright moonlight, 0·003 lx), red-filtered light (4·1 lx), low-intensity 'white' light (3·8 lx), and high-intensity 'white' light (12·0 lx). The treatments were chosen to correspond to standard methods of field observation of frog behaviour. The foraging behaviour of frogs in the four treatments was observed using infra-red light that was invisible to the frogs. The ability of the frogs to detect, and subsequently consume prey was significantly reduced under all of the enhanced light treatments relative to the ambient light treatment. Thus, the use of artificial light, within the visible spectrum of the frogs' eyes, can influence the outcome of nocturnal behavioural observations. These results lead to the recommendation that anuran biologists use infra-red or light amplification devices when changes in frogs' visual capabilities may influence the conclusions drawn from a study.