Finding of a sex pheromone source by gypsy moths released in the field

David, C. T.; Kennedy, J. S.; Ludlow, A. R.

doi:10.1038/303804a0

Cited by 194 publications

(154 citation statements)

References 8 publications

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“…The rats soon learnt to track the odour trail to find the chocolate. All the rats tracked the trail by moving their noses over the trail in a zigzag fashion, similar to the reports for other species 8,[10][11][12] (Fig. 1b, and Supplementary Movie S1).…”

Section: Rats Track Various Odour Trails Accuratelysupporting

confidence: 80%

“…On losing the trail, rats sometimes made wide sweeping movements (Fig. 1c), akin to the casting behaviour observed in moths, when they have lost a scent trail 8 . It also appears that the nose zigzagging movement is not generated by only a neck-onwards movement, but by involving the entire body ( Supplementary Fig.…”

Section: Rats Track Various Odour Trails Accuratelymentioning

confidence: 76%

“…We only placed chocolate pieces on the trail, and the rats quite rapidly discovered that the best strategy was to track the trail to find the chocolate. This basic pattern of movement is seen in moths, dogs and humans tracking unrestrained in the open 8,10,11,26 . Furthermore, we were able to characterize the underlying strategies used by the rats.…”

Section: Discussionmentioning

confidence: 86%

“…In studies on other animals, a few common themes have emerged. First, as shown clearly by moths, insects often combine zigzagging through an odour plume while approaching its source and wide 'casting' movements to search for the trail whenever they lose it 8,9 . The zigzagging approach has been observed in several other animals including bees, cockroaches, dogs and humans 5,[10][11][12] .…”

mentioning

confidence: 99%

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Rats track odour trails accurately using a multi-layered strategy with near-optimal sampling

2012

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Tracking odour trails is a crucial behaviour for many animals, often leading to food, mates or away from danger. It is an excellent example of active sampling, where the animal itself controls how to sense the environment. Here we show that rats can track odour trails accurately with near-optimal sampling. We trained rats to follow odour trails drawn on paper spooled through a treadmill. By recording local field potentials (LFPs) from the olfactory bulb, and sniffing rates, we find that sniffing but not LFPs differ between tracking and non-tracking conditions. Rats can track odours within ~1 cm, and this accuracy is degraded when one nostril is closed. moreover, they show path prediction on encountering a fork, wide 'casting' sweeps on encountering a gap and detection of reappearance of the trail in 1-2 sniffs. We suggest that rats use a multi-layered strategy, and achieve efficient sampling and high accuracy in this complex task.

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Section: Rats Track Various Odour Trails Accuratelysupporting

confidence: 80%

Section: Rats Track Various Odour Trails Accuratelymentioning

confidence: 76%

Section: Discussionmentioning

confidence: 86%

mentioning

confidence: 99%

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Rats track odour trails accurately using a multi-layered strategy with near-optimal sampling

2012

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“…Two different goal oriented behaviours can be distinguished as in other species: guiding (Dusenbery 1992) and casting (Kennedy and Marsh 1974;Dusenbery 1992). Guiding behaviours include the mechanisms the bugs employ to approach the resource of the chemostimuli in the air stream, and casting behaviours (treated below), are those undertaken to regain contact with the chemostimuli after loss (David et al 1983).…”

Section: Discussionmentioning

confidence: 99%

Appetence behaviours of the triatomine bug Rhodnius prolixus on a servosphere in response to the host metabolites carbon dioxide and ammonia

2004

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Appetence behaviours of the triatomine bug Rhodnius prolixus on a servosphere in response to the host metabolites carbon dioxide and ammonia Abstract A combination of 1,000 ppm CO 2 plus 30-40 ppb NH 3 in an air stream induced Rhodnius prolixus nymphs walking on a servosphere to perform a series of appetence behaviours. Shortly after the onset of stimulation the nymphs turned sharply upwind towards the source of the chemostimuli (within 13±9 s) from mostly downwind and crosswind walks in the air stream alone. The mean vector angles of these upwind tracks were concentrated in a cone 60°either side of due upwind. The upwind walking bugs stopped more frequently but for a shorter duration and walked at a higher speed than before stimulation. During stops in the presence of the chemostimuli the bugs frequently corrected their course angles and extended their forelegs to reach higher with their antennae in the air. In the air stream alone, R. prolixus nymphs frequently sampled the sphere surface with the antennae and cleaned their antennae with the foreleg tarsi. However, the nymphs only briefly tapped the left or right antennal flagellum on the corresponding first leg tarsus and never touched the servosphere surface in the presence of the chemostimuli. After chemostimulus removal from the air stream the bugs continued to respond with the same appetence responses as during stimulation, but walked more tortuously in a crosswind direction in an effort to regain contact with the chemostimuli.

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Insects in Flight

Young¹

2005

Insect Sampling in Forest Ecosystems

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Finding of a sex pheromone source by gypsy moths released in the field

Cited by 194 publications

References 8 publications

Rats track odour trails accurately using a multi-layered strategy with near-optimal sampling

Rats track odour trails accurately using a multi-layered strategy with near-optimal sampling

Appetence behaviours of the triatomine bug Rhodnius prolixus on a servosphere in response to the host metabolites carbon dioxide and ammonia

Insects in Flight

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