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Composition database for Biodiversity" (Version2, BioFoodComp2ed.). FAO. 10 January 2013 . Retrieved 1 April 2015. Distinctive changes in behavior before and after migration - Insects preparing to migrate may suspend reproductive activities and change their feeding habits. Some will climb to the top of a tree to assess and make use of the wind currents when they depart. Locusts, which are normally solitary insects, become gregarious. https://www.reuters.com/lifestyle/science/israeli-scientists-develop-sniffing-robot-with-locust-antennae-2023-02-06/ Straight movement - Relative to other kinds of movement, insects will move in a fairly consistent direction during migration.
a b c d e f g h i j k l Franks, Nigel R.; Hölldobler, Bert (1987). "Sexual competition during colony reproduction in army ants". Biological Journal of the Linnean Society. 30 (3): 229–243. doi: 10.1111/j.1095-8312.1987.tb00298.x.Their mass raids are considered the pinnacle of collective foraging behavior in the animal kingdom. The raids are a coordinated hunting swarm of thousands and, in some species, millions of ants. The ants spontaneously stream out of their nest, moving across the forest floor in columns to hunt for food. The raids are one of the most iconic collective behaviors in the animal kingdom. Scientists have studied their ecology and observed their complex behavior extensively. And while we know how these raids happen, we know nothing of how they evolved.
All of these ants are within the subfamily Dorylinae," said Chandra. "The first doryline ants, which were not army ants, lived in small colonies of a few hundred workers. When army ants evolved their foraging behavior from group to mass raiding, they also massively expanded their colony sizes. Army ant colonies now have tens of thousands—and often millions—of ants." Nesbit RL, Hill JK, Woiwod IP, Sivell D, Bensusan KJ, Chapman JW. Seasonally-adaptive migratory headings mediated by a sun compass in the painted lady butterfly, Vanessa cardui. Anim Behav. 2009;78:1119–25.a b c d Krall, S.; Peveling, R.; Diallo, B.D. (1997). New Strategies in Locust Control. Springer Science & Business Media. pp.453–454. ISBN 978-3-7643-5442-8.