NDLI: Worker reproductive competition affects division of labor in a primitively social paperwasp (Polistes instabilis)

Content Provider	Springer Nature Link
Author	Molina, Y. O’Donnell, S.
Copyright Year	2008
Abstract	Social insects are premier models for studying the evolution of self-organization in animal societies. Primitively social species may be informative about the early stages of social evolution and transitions in self-organization. Previous worker removal studies in Polistes instabilis paper wasps suggested that dominant but non-egglaying workers play an important role in regulating rates of task performance by inducing foraging in subordinates. We extend previous worker removal studies by quantifying changes in individuals’ behavior following removals, and by measuring associations between behavioral change and individuals’ reproductive capacity (ovary development). Workers changed their rates of aggressive behaviors more than queens following the dominant worker removals. Increases in worker’s rates of aggressive behaviors were correlated with decreases in their foraging rates. Changes in individual rates of social aggression were associated with their reproductive capacity: worker females with well-developed ovaries increased their rates of aggression. Further changes in rates of aggression after the dominant workers were returned also depended on ovary development. These patterns suggest that task performance and potential fecundity are linked in workers, and that worker interactions play a strong role in regulating task performance. We conclude that worker reproductive competition may have influenced the evolution of colony organization in social insects.
Starting Page	14
Ending Page	20
Page Count	7
File Format	PDF
ISSN	00201812
Journal	Insectes Sociaux
Volume Number	56
Issue Number	1
e-ISSN	14209098
Language	English
Publisher	Birkhäuser-Verlag
Publisher Date	2008-09-23
Publisher Place	Basel
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Polistes instabilis dominance foraging polyethism social organization social evolution Zoology
Content Type	Text
Resource Type	Article
Subject	Ecology, Evolution, Behavior and Systematics Insect Science

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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