Wind and sky as compass cues in desert ant navigation
Wind and sky as compass cues in desert ant navigation
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DOI：
10.1007/s00114-007-0232-4
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发表时间：
2007-07-01
影响因子：
--
通讯作者：
Wehner, Rudiger
中科院分区：
文献类型：
--
作者：
Mueller, Martin;Wehner, Rudiger
在整合觅食和归途的过程中，沙漠蚂蚁（Cataglyphis fortis）依赖于外部罗盘线索。最近对蜜蜂和蚂蚁的研究几乎完全集中在极化罗盘上，而其他两种罗盘系统——太阳罗盘和风（风）罗盘——以及所有这些罗盘系统的相互作用却很少受到关注。在这项研究中，我们表明，在两种视觉罗盘系统中，只有偏光罗盘总是优于风罗盘，而太阳罗盘只有在某些条件下才会优于风罗盘。如果实验剥夺了蚂蚁的偏振罗经系统，但同时有太阳罗经和风罗经，它们就会选择中间路线。中间路线越向风罗盘方向移动，太阳在天空中的高度就越高。
While integrating their foraging and homing paths, desert ants, Cataglyphis fortis, depend on external compass cues. Whereas recent research in bees and ants has focused nearly exclusively on the polarization compass, two other compass systems-the sun compass and the wind (anemo) compass-as well as the mutual interactions of all these compass systems have received little attention. In this study, we show that of the two visual compass systems, it is only the polarization compass that invariably outcompetes the wind compass, while the sun compass does so only under certain conditions. If the ants are experimentally deprived of their polarization compass system, but have access simultaneously to both their sun compass and their wind compass, they steer intermediate courses. The intermediate courses shift the more towards the wind compass course, the higher the elevation of the sun is in the sky.