Local vectors in desert ants: context-dependent landmark learning during outbound and homebound runs
Local vectors in desert ants: context-dependent landmark learning during outbound and homebound runs
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DOI：
10.1007/s00359-003-0389-z
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发表时间：
2003-03-01
影响因子：
2.1
通讯作者：
Wehner, R
中科院分区：
文献类型：
--
作者：
Bisch-Knaden, S;Wehner, R
沙漠蚂蚁，Cataglyphis fortis，将巢向矢量记忆（本地矢量）与沿着熟悉路线沿着的地标相关联。这种基于视图的导航策略与以自我为中心的路径集成系统并行工作。在本研究中，我们问在什么样的时间阶段在觅食的旅程中，蚂蚁获得巢定向的本地矢量信息，从饲料相关的地标：在其出站运行到一个喂食点或在其归巢运行的巢。两个反向图像训练范式后进行的测试显示，蚂蚁相关的这些向量专门与地标存在于他们的家运行。
Desert ants, Cataglyphis fortis, associate nestward-directed vector memories (local vectors) with the sight of landmarks along a familiar route. This view-based navigational strategy works in parallel to the self-centred path integration system. In the present study we ask at what temporal stage during a foraging journey does the ant acquire nestward-directed local vector information from feeder-associated landmarks: during its outbound run to a feeding site or during its homebound run to the nest. Tests performed after two reversed-image training paradigms revealed that the ants associated such vectors exclusively with landmarks present during their homebound runs.