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Young fire ant workers feign death and survive aggressive beighbors.
Faculty Publications
  • Deby L. Cassill
  • Kim Vo
  • Brandie Becker
SelectedWorks Author Profiles:

Deby L. Cassill

Document Type
Publication Date
Date Issued
January 2008
Feigning death is a method of self-defense employed among a wide range of prey species when threatened by predator species. This paper reports on death-feigning behavior by the fire ant, Solenopsis invicta, during intraspecific aggression among neighboring fire ant workers. Days-old workers responded to aggression by death feigning, weeks-old workers responded by fleeing and months-old workers responded by fighting back. By feigning death, days-old workers were four times more likely to survive aggression than older workers. From a proximate perspective, retaliation by young workers against aggressive older workers is certain to fail. With their relatively soft exoskeleton, young workers would be prone to injury and death and unable to execute an effective attack of biting or stinging older workers with harder exoskeletons. From an ultimate perspective, death feigning allows young workers to survive and contribute to brood care and colony growth, both of which are essential to queen survival and fitness.
Abstract only. Full-text article is available only through licensed access provided by the publisher. Published in Naturwissenschaften, 95, 617-624. doi: 10.1007/s00114-008-0362-3 Members of the USF System may access the full-text of the article through the authenticated link provided.
Springer Verlag
Creative Commons License
Creative Commons Attribution-Noncommercial-No Derivative Works 4.0
Citation Information
Cassill, D.L., Vo, K. & Becker, B. (2008). Young fire ant workers feign death and survive aggressive beighbors. Naturwissenschaften, 95, 617-624. doi: 10.1007/s00114-008-0362-3