Visual landmarks and route following in desert ants
Visual landmarks and route following in desert ants
复制标题
沙漠蚂蚁的视觉地标和路线追踪
DOI：
10.1007/bf00191460
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
R. Wehner
中科院分区：
文献类型：
--
作者：
T. Collett;E. Dillmann;A. Giger;R. Wehner
对于远离家园的动物如何利用熟悉的地标来指引它们回家的路径，我们知之甚少。它们长距离的单独觅食开始提供一些答案。我们发现，从觅食地到蚁穴跑30米的蚂蚁会记住靠近它们路径的显著地标的视觉特征。尽管记住的视觉特征用于识别地标并决定是向左还是向右，它们并不负责蚂蚁路径的详细控制。蚂蚁接近或绕过地标时的轨迹形式似乎是由后者的直接视网膜大小控制;它越大，蚂蚁的转向速度越大远离地标。
SummaryLittle is known about the way in which animals far from home use familiar landmarks to guide their homeward path. Desert ants, Cataglyphis spp., which forage individually over long distances are beginning to provide some answers. We find that ants running 30 m from a feeding place to their nest memorise the visual characteristics of prominent landmarks which lie close to their path. Although remembered visual features are used for identifying a landmark and for deciding whether to go to its left or right, they are not responsible for the detailed steering of an ant's path. The form of the trajectory as an ant approaches and detours around a landmark seems to be controlled by the latter's immediate retinal size; the larger it is, the greater the ant's turning velocity away from the landmark.