Neotropical Swarm-Founding Wasps (Vespidae: Polistinae: Epiponini) Accept Expelled Queens in Case of Queen Loss

Author(s)

Chavarria-Pizarro, L. ^{[1, 2]} ; Silva, M. ^[3] ; Noll, F. B. ^[3]

Affiliation

^[1] Univ Sao Paulo, FFCLRP, Dept Biol, Sao Paulo - Brazil

^[2] Inst Tecnol Costa Rica, Escuela Biol, Cartago 1597050 - Costa Rica

^[3] Univ Estadual Paulista, IBILCE, Dept Zool & Bot, Sao Paulo - Brazil

• Document type: Journal article
• Source: Sociobiology; v. 65, n. 2, p. 333-336, JUN 2018.
• Web of Science Citations: 0

Abstract

In the Epiponini, queen number declines through colony cycle, because some queens are expelled from colonies. Here we demonstrate that Epiponini wasps may accept expelled queens in situations of queenlessness. One colony of Protopolybia exigua was observed at the University of Sao Paulo in Brazil; and another of Metapolybia docilis was observed at La Selva Biological Station in Costa Rica. Queen removal tests were performed to study workers' acceptance of expelled queens and queens from other colonies. In P. exigua, the experimental queen elimination caused a change in the workers' behavior, ranging from aggressive expulsion of non-selected queens to re-acceptance. In M. docilis workers were willing to accept queens from other colonies after queen elimination. Our results indicate that because of a decrease in workers aggressiveness during the colony cycle, workers may accept expelled queens (even foreign ones, in experimental situations) in order to ensure colony survival. (AU)

• FAPESP's process: 11/06058-5 - Molecular phylogeny of Epiponini and the relationships among basal genera (Hymenoptera, Vespidae)
• Grantee: Fernando Barbosa Noll
• Support Opportunities: Regular Research Grants
• FAPESP's process: 09/07526-2 - On the selection and production of queens in different stages of the colony cycle in the Epiponini (Vespidae: Polistinae)
• Grantee: Laura Elena Chavarría Pizarro
• Support Opportunities: Scholarships in Brazil - Doctorate