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Sociobiology of the Ants of the Genus Pheidologeton.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Sociobiology of the Ants of the Genus Pheidologeton./
作者:	Moffett, Mark William.
面頁冊數:	1 online resource (289 pages)
附註:	Source: Dissertations Abstracts International, Volume: 48-07, Section: B.
Contained By:	Dissertations Abstracts International48-07B.
標題:	Zoology. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8800883click for full text (PQDT)
ISBN:	9798641984414

Sociobiology of the Ants of the Genus Pheidologeton.
Moffett, Mark William.

Sociobiology of the Ants of the Genus Pheidologeton. - 1 online resource (289 pages)

Source: Dissertations Abstracts International, Volume: 48-07, Section: B.

Thesis (Ph.D.)--Harvard University, 1987.

Includes bibliographical references

The genus Pheidologeton includes some of the most polymorphic ants known. This polymorphism is associated with foraging behavior and polyethism of exceptional complexity. Workers of P. diversus and P. silenus forage by group hunting, as do army ants (Dorylinae and Ecitoninae); transient groups advance both in column raids and swarm raids. Raids permit both species to harvest foods rapidly, usurp foods from competitors, and capture formidable prey. In diversus the raids advance from trunk trails that can last as long as ten weeks; trunk trails are apparently lacking in silenus. P. diversus ants orient along trails of either the poison gland or Dufour's gland contents of minor workers. The poison gland contents also have recruitment and alarm functions. Laden workers reverse their course along a trail if they find themselves heading in a direction that conflicts with other laden ants on the same trail. Six diversus worker castes are distinguished: minors, medias, majors, repletes, and two temporal castes (as well as wounded individuals). Minors attend to most tasks entailing high mortality, such as pinioning prey and conspecific fighting. Many tasks (such as killing prey) are attended to by a range of worker sizes (i.e., are "flexible tasks"). The behavioral flexibility of diversus apparently explains this species' success in exploiting diverse foods. P. silenus has a more restricted diet. In both species, many foods are carried by worker groups. The occurrence of group transport in ants and other animals is discussed. Despite convergences in foraging behavior, there is no evidence that other traits believed to typify army ants, notably nomadism and colony fission, occur in Pheidologeton. The behavior of diversus and silenus is contrasted with that of the species pygmaeus, which is probably the sister taxon to Pheidologeton sensu stricto. A classification of ant foraging strategies is proposed, as is hypothesis regarding the origin of group hunting.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798641984414Subjects--Topical Terms:

518878
Zoology.
Index Terms--Genre/Form:

542853
Electronic books.

Sociobiology of the Ants of the Genus Pheidologeton.
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245 1 0 $a Sociobiology of the Ants of the Genus Pheidologeton.
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500 $a Source: Dissertations Abstracts International, Volume: 48-07, Section: B.
500 $a Publisher info.: Dissertation/Thesis.
502 $a Thesis (Ph.D.)--Harvard University, 1987.
504 $a Includes bibliographical references
520 $a The genus Pheidologeton includes some of the most polymorphic ants known. This polymorphism is associated with foraging behavior and polyethism of exceptional complexity. Workers of P. diversus and P. silenus forage by group hunting, as do army ants (Dorylinae and Ecitoninae); transient groups advance both in column raids and swarm raids. Raids permit both species to harvest foods rapidly, usurp foods from competitors, and capture formidable prey. In diversus the raids advance from trunk trails that can last as long as ten weeks; trunk trails are apparently lacking in silenus. P. diversus ants orient along trails of either the poison gland or Dufour's gland contents of minor workers. The poison gland contents also have recruitment and alarm functions. Laden workers reverse their course along a trail if they find themselves heading in a direction that conflicts with other laden ants on the same trail. Six diversus worker castes are distinguished: minors, medias, majors, repletes, and two temporal castes (as well as wounded individuals). Minors attend to most tasks entailing high mortality, such as pinioning prey and conspecific fighting. Many tasks (such as killing prey) are attended to by a range of worker sizes (i.e., are "flexible tasks"). The behavioral flexibility of diversus apparently explains this species' success in exploiting diverse foods. P. silenus has a more restricted diet. In both species, many foods are carried by worker groups. The occurrence of group transport in ants and other animals is discussed. Despite convergences in foraging behavior, there is no evidence that other traits believed to typify army ants, notably nomadism and colony fission, occur in Pheidologeton. The behavior of diversus and silenus is contrasted with that of the species pygmaeus, which is probably the sister taxon to Pheidologeton sensu stricto. A classification of ant foraging strategies is proposed, as is hypothesis regarding the origin of group hunting.
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650 4 $a Entomology. $3 615844
655 7 $a Electronic books. $2 lcsh $3 542853
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856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=8800883 $z click for full text (PQDT)