Journal
JOURNAL OF EXPERIMENTAL BIOLOGY
Volume 226, Issue 6, Pages -Publisher
COMPANY BIOLOGISTS LTD
DOI: 10.1242/jeb.245278
Keywords
Insect learning; Insect navigation; Path integration; Insect brain; Neuroethology; Visual memories
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The learning flights and walks of bees, wasps, and ants are coordinated movements that allow them to remember their nest or other important places visually. These movements were discovered in the 19th century and provided the first evidence of insect learning. Over the years, research has focused on understanding the neural mechanisms underlying these behaviors and their role in insect navigation.
The learning flights and walks of bees, wasps and ants are precisely coordinated movements that enable insects to memorise the visual surroundings of their nest or other significant places such as foraging sites. These movements occur on the first few occasions that an insect leaves its nest. They are of special interest because their discovery in the middle of the 19th century provided perhaps the first evidence that insects can learn and are not solely governed by instinct. Here, we recount the history of research on learning flights from their discovery to the present day. The first studies were conducted by skilled naturalists and then, over the following 50 years, by neuroethologists examining the insects' learning behaviour in the context of experiments on insect navigation and its underlying neural mechanisms. The most important property of these movements is that insects repeatedly fixate their nest and look in other favoured directions, either in a preferred compass direction, such as North, or towards preferred objects close to the nest. Nest facing is accomplished through path integration. Memories of views along a favoured direction can later guide an insect's return to its nest. In some ant species, the favoured direction is adjusted to future foraging needs. These memories can then guide both the outward and homeward legs of a foraging trip. Current studies of central areas of the insect brain indicate what regions implement the behavioural manoeuvres underlying learning flights and the resulting visual memories.
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