Long- term disease dynamics for a specialized parasite of ant societies: a field study

Show simple item record Loreto, Raquel G. Elliot, Simon L. Freitas, Mayara L. R. Pereira, Thairine M. Hughes, David P. 2019-02-14T15:05:55Z 2019-02-14T15:05:55Z 2014-08
dc.identifier.issn 1932-6203
dc.description.abstract Many studies have investigated how social insects behave when a parasite is introduced into their colonies. These studies have been conducted in the laboratory, and we still have a limited understanding of the dynamics of ant-parasite interactions under natural conditions. Here we consider a specialized parasite of ant societies (Ophiocordyceps camponoti-rufipedis infecting Camponotus rufipes) within a rainforest. We first established that the parasite is unable to develop to transmission stage when introduced within the host nest. Secondly, we surveyed all colonies in the studied area and recorded 100% prevalence at the colony level (all colonies were infected). Finally, we conducted a long-term detailed census of parasite pressure, by mapping the position of infected dead ants and foraging trails (future hosts) in the immediate vicinity of the colonies over 20 months. We report new dead infected ants for all the months we conducted the census – at an average of 14.5 cadavers/month/colony. Based on the low infection rate, the absence of colony collapse or complete recovery of the colonies, we suggest that this parasite represents a chronic infection in the ant societies. We also proposed a “terminal host model of transmission” that links the age-related polyethism to the persistence of a parasitic infection. en
dc.language.iso en pt-BR
dc.publisher Plos One pt-BR
dc.relation.ispartofseries Volume 9, Issue 8, Pages 1- 7, August 2014
dc.subject Specialized parasite pt-BR
dc.subject Field study pt-BR
dc.subject Ant societies pt-BR
dc.title Long- term disease dynamics for a specialized parasite of ant societies: a field study en
dc.type Article pt-BR

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    Artigos Técnico-científicos na área de Entomologia

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