論文

査読有り
2011年5月

The Importance of Workers for Queen Hibernation Survival in Camponotus Ants

ZOOLOGICAL SCIENCE
  • Akiyoshi Shiroto
  • ,
  • Toshiyuki Satoh
  • ,
  • Tadao Hirota

28
5
開始ページ
327
終了ページ
331
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.2108/zsj.28.327
出版者・発行元
ZOOLOGICAL SOC JAPAN

The higher proportion of polygynous ant species in northern areas indicates that cold climates influence queen number per colony. It is unclear, however, what ecological and physiological factors facilitate the dominance of polygynous species in cold climates. This is the case in two common arboreal ants in Japan-Camponotus yamaokai and C. nawai-which are quite similar in morphology, but different in social structure and geographical distribution. Polygynous C. yamaokai inhabits colder areas, whereas monogynyous C. nawai inhabits warmer climates. We compared queen survival in both ants at low temperature to evaluate whether interspecific difference in cold tolerance can explain the geographical distribution. We examined the influence of cohabitation with other individuals, as well as individual cold tolerance. Experimental groups with different caste compositions were prepared and maintained under conditions simulating in the laboratory climates of the northern limit of C. nawai. Wintering experiments revealed that C. yamaokai queens survived longer than C. nawai queens under solitary conditions, although half of the queens died in less than a month, even in C. yamaokai. Queens hibernating with workers survived longer than solitary queens, but queen number did not affect queen survival. Cohabitation with workers allowed 80% of C. yamaokai queens to survive more than two months. Under field conditions, monogynous C. nawai foundresses overwinter without workers, whereas new queens of polygynous C. yamaokai always overwinter with many workers. Thus, the geographical distribution of these ants appears to depend on the overwintering behavior of new queens.

リンク情報
DOI
https://doi.org/10.2108/zsj.28.327
CiNii Articles
http://ci.nii.ac.jp/naid/40018820816
PubMed
https://www.ncbi.nlm.nih.gov/pubmed/21557655
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000290048100003&DestApp=WOS_CPL
ID情報
  • DOI : 10.2108/zsj.28.327
  • ISSN : 0289-0003
  • CiNii Articles ID : 40018820816
  • PubMed ID : 21557655
  • Web of Science ID : WOS:000290048100003

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