Ant Encounters: Interaction Networks and Colony Behavior - download pdf or read online

By Deborah M. Gordon

ISBN-10: 0691138796

ISBN-13: 9780691138794

How do ant colonies get something performed, whilst not anyone is liable? An ant colony operates with out a imperative keep an eye on or hierarchy, and no ant directs one other. as an alternative, ants come to a decision what to do in keeping with the speed, rhythm, and development of person encounters and interactions--resulting in a dynamic community that coordinates the services of the colony. Ant Encounters presents a revealing and available check out ant habit from this advanced structures perspective.

concentrating on the moment-to-moment habit of ant colonies, Deborah Gordon investigates the position of interplay networks in regulating colony habit and kin between ant colonies. She indicates how ant habit inside and among colonies arises from neighborhood interactions of people, and the way interplay networks improve as a colony grows older and bigger. The extra speedily ants react to their encounters, the extra sensitively the full colony responds to altering stipulations. Gordon explores even if such reactive networks aid a colony to outlive and reproduce, how traditional choice shapes colony networks, and the way those constructions examine to different analogous advanced platforms.

Ant Encounters sheds mild at the organizational habit, ecology, and evolution of those varied and ubiquitous social insects.

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The trail of ants never touched the ground and went a total of 38 meters to get from one tree to another 3 meters away. There may be a good reason, perhaps to avoid predators on the ground or other ants on the trunks of the trees, but I haven’t figured out what it is. Sometimes an ant does something completely out of character for its species. Phil Ward described to me a surprising burst of courage from an ant of Pseudomyrmex apache. These ants live on plants, mostly manzanita, in northern California.

A graphic demonstration that ants use cuticular hydrocarbons comes from work on Argentine ants, who are unusually reluctant to fight with ants from another colony. Even though fighting between colonies is rare, Argentine ants can be induced to fight when they are fed foods that produce changes in cuticular hydrocarbon profiles. 3 The researchers were astonished to see many ants fighting. This led to a series of experiments that showed that the cuticular hydrocarbons of the cockroach were quite similar to those of Argentine ants except for one aberrant component.

The results showed some overlap among tasks performed by a particular size of ant. Statistical techniques were developed to decide whether the tasks performed by one size ant were really distinct from those performed by another. Some studies concluded that they were. However, even in species with different sizes of workers, an ant’s behavior changes if conditions change. Removal of the ants of one size causes the others to switch task. 9 Although some studies suggested that in species with workers of different sizes, workers of a certain size tend to perform certain tasks, the next step, showing that each size performs the task it is best suited for, proved to be much more difficult.

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Ant Encounters: Interaction Networks and Colony Behavior by Deborah M. Gordon


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