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| Wittlinger, M., Wolf, H., Wehner, R.: (2007): |
id 35 |
| Hair plate mechanoreceptors associated with body segments are not necessary for three-dimensional path integration in desert ants, Cataglyphis fortis |
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| Nørgaard, T., Henschel, J.R., Wehner, R. (2007): |
id 36 |
| Use of local cues in the night-time navigation of the wandering
desert spider Leucorchestris arenicola (Araneae, Sparassidae) |
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| Narendra A., Cheng K., Wehner R.: (2007): |
id 37 |
| Acquiring, retaining and integrating memories of the outbound distance in the
Australian desert ant Melophorus bagoti |
| The Journal of Experimental Biology 210, 570-577 |
| ABSTRACT |  | ZORA | |
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Abstract:
Estimation of distance travelled (odometry) forms a
vital part of navigation for solitarily foraging ants. In this
study we investigated the properties of odometric memory
in the Australian desert ant Melophorus bagoti. Ants were
trained to travel in linear channels to a feeder placed at
6·m or 12·m from the nest. We determined if the ability to
estimate distances accurately increased with experience.
We also determined the delay at which the odometric
memory started to decay at both these distances. Ants with
six trials of experience did not get better at estimating
distances and the odometric memory decayed after a 24·h
delay. We then determined if ants integrated their latest
odometric memory with their previous memories. We did
this by training two groups of ants for five trials, one
group to 6·m and another to 12·m, and then halving or
doubling the outbound distance on their sixth trip,
respectively. The ant’s estimate was noted when the ants
were released either immediately or after a 24·h delay.
Ants always estimated their last outbound distance when
released immediately. However, they switched to routebased
navigation rather than estimating distances after a
24·h delay (at which time their odometric memory would
have decayed). |
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| Wehner, R.,Fukushi, T.,Isler, K.: (2007): |
id 38 |
| On Being Small: Brain Allometry in Ants |
| Brain Behav Evol 2007;69:220-228 |
| ZORA | |
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| Grah, G., Wehner, R. and Ronacher, B. (2007): |
id 88 |
| Desert ants do not acquire and use a three-dimensional vector. |
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| Hegedüs, R., Åkesson, S., Wehner, R. and Horvath, G. (2007): |
id 89 |
| Could Vikings have navigated under foggy and cloudy conditions by skylight polarization? On the atmospheric optical prerequisites of polarimetric Viking navigation under foggy and cloudy skies. |
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| Müller, M. and Wehner, R. (2007): |
id 90 |
| Wind and sky as compass cues in desert ant navigation |
| Naturwissenschaften (2007) 94, 589-594 |
| ABSTRACT | | ZORA | |
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| Wehner, R. (2007): |
id 91 |
| The desert ant's navigational toolkit: procedural rather than positional knowledge. |
| Proceedings of the 63rd Annual Meeting of the Institute of Navigation 2007:1-14, April 23 - 25, Cambridge, Massachusetts |
| ABSTRACT | ZORA | |
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| Wittlinger, M., Wehner, R. and Wolf, H. (2007): |
id 92 |
| The desert ant odometer: a stride integrator that accounts for stride length and walking speed. |
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imls/literature
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