The First Workers of the Ant Camponotus obscuripes Are a Different Allometric Morph with Relatively Long Antennae to Communicate with Other Larger Colony Members

The first workers produced by an ant queen with a claustral founding mode are much smaller than the workers after the second generation and are thus called “nanitics.” These nanitics shoulder the initial fate of the colony and thus may be different morphometric morph from the other workers in mature...

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Main Authors: Saori Watanabe, Mamoru Terayama, Ryota Kawauchiya, Natsuki Ogusu, Yusuke Fujita, Syunta Mikami, Yuuka Murakami, Eisuke Hasegawa
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Psyche: A Journal of Entomology
Online Access:http://dx.doi.org/10.1155/2017/4520109
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author Saori Watanabe
Mamoru Terayama
Ryota Kawauchiya
Natsuki Ogusu
Yusuke Fujita
Syunta Mikami
Yuuka Murakami
Eisuke Hasegawa
author_facet Saori Watanabe
Mamoru Terayama
Ryota Kawauchiya
Natsuki Ogusu
Yusuke Fujita
Syunta Mikami
Yuuka Murakami
Eisuke Hasegawa
author_sort Saori Watanabe
collection DOAJ
description The first workers produced by an ant queen with a claustral founding mode are much smaller than the workers after the second generation and are thus called “nanitics.” These nanitics shoulder the initial fate of the colony and thus may be different morphometric morph from the other workers in mature colony to optimize the survival of their own colony. We report here that, in the ant Camponotus obscuripes Mayr, the allometric rules of the nanitics are different from those of other workers in mature colonies, suggesting that the nanitics constitute an independent caste as with soldiers or queens in other species. In addition, the antennae of the nanitics show the minimum absolute length-difference with the mother queen compared to the other traits measured. This result suggests that this small size difference enables C. obscuripes nanitics to communicate with the other members of the colony. Our results indicate that polymorphic societies affect the growth rules of workers.
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id doaj-art-d29a3cb9752a4eff8d7cfe829ddf6bd7
institution Kabale University
issn 0033-2615
1687-7438
language English
publishDate 2017-01-01
publisher Wiley
record_format Article
series Psyche: A Journal of Entomology
spelling doaj-art-d29a3cb9752a4eff8d7cfe829ddf6bd72025-02-03T06:13:20ZengWileyPsyche: A Journal of Entomology0033-26151687-74382017-01-01201710.1155/2017/45201094520109The First Workers of the Ant Camponotus obscuripes Are a Different Allometric Morph with Relatively Long Antennae to Communicate with Other Larger Colony MembersSaori Watanabe0Mamoru Terayama1Ryota Kawauchiya2Natsuki Ogusu3Yusuke Fujita4Syunta Mikami5Yuuka Murakami6Eisuke Hasegawa7Laboratory of Animal Ecology, Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, JapanLaboratory of Applied Entomology, Department of Agricultural and Environmental Biology, The University of Tokyo, Tokyo 113-8657, JapanInstitute of Entomology, Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, JapanLaboratory of Animal Ecology, Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, JapanLaboratory of Animal Ecology, Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, JapanLaboratory of Animal Ecology, Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, JapanDepartment of Neuropharmacology, Graduate School of Medicine, Hokkaido University, Sapporo 060-8638, JapanLaboratory of Animal Ecology, Department of Ecology and Systematics, Graduate School of Agriculture, Hokkaido University, Sapporo 060-8589, JapanThe first workers produced by an ant queen with a claustral founding mode are much smaller than the workers after the second generation and are thus called “nanitics.” These nanitics shoulder the initial fate of the colony and thus may be different morphometric morph from the other workers in mature colony to optimize the survival of their own colony. We report here that, in the ant Camponotus obscuripes Mayr, the allometric rules of the nanitics are different from those of other workers in mature colonies, suggesting that the nanitics constitute an independent caste as with soldiers or queens in other species. In addition, the antennae of the nanitics show the minimum absolute length-difference with the mother queen compared to the other traits measured. This result suggests that this small size difference enables C. obscuripes nanitics to communicate with the other members of the colony. Our results indicate that polymorphic societies affect the growth rules of workers.http://dx.doi.org/10.1155/2017/4520109
spellingShingle Saori Watanabe
Mamoru Terayama
Ryota Kawauchiya
Natsuki Ogusu
Yusuke Fujita
Syunta Mikami
Yuuka Murakami
Eisuke Hasegawa
The First Workers of the Ant Camponotus obscuripes Are a Different Allometric Morph with Relatively Long Antennae to Communicate with Other Larger Colony Members
Psyche: A Journal of Entomology
title The First Workers of the Ant Camponotus obscuripes Are a Different Allometric Morph with Relatively Long Antennae to Communicate with Other Larger Colony Members
title_full The First Workers of the Ant Camponotus obscuripes Are a Different Allometric Morph with Relatively Long Antennae to Communicate with Other Larger Colony Members
title_fullStr The First Workers of the Ant Camponotus obscuripes Are a Different Allometric Morph with Relatively Long Antennae to Communicate with Other Larger Colony Members
title_full_unstemmed The First Workers of the Ant Camponotus obscuripes Are a Different Allometric Morph with Relatively Long Antennae to Communicate with Other Larger Colony Members
title_short The First Workers of the Ant Camponotus obscuripes Are a Different Allometric Morph with Relatively Long Antennae to Communicate with Other Larger Colony Members
title_sort first workers of the ant camponotus obscuripes are a different allometric morph with relatively long antennae to communicate with other larger colony members
url http://dx.doi.org/10.1155/2017/4520109
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