منابع مشابه
Host specificity of parasite manipulation
Recently we presented how Camponotus ants in Thailand infected with the fungus Ophiocordyceps unilateralis are behaviorally manipulated into dying where the conditions are optimal for fungal development. Death incurred in a very narrow zone of space and here we compare this highly specific manipulation with a related system in Brazil. We show that the behavioral manipulation is less fine-tuned ...
متن کاملComparing mechanisms of host manipulation across host and parasite taxa.
Parasites affect host behavior in several ways. They can alter activity, microhabitats or both. For trophically transmitted parasites (the focus of our study), decreased activity might impair the ability of hosts to respond to final-host predators, and increased activity and altered microhabitat choice might increase contact rates between hosts and final-host predators. In an analysis of trophi...
متن کاملHost specificity of parasite manipulation –zombie ant death location in Thailand vs. Brazil
Addendum to: Andersen SB, Gerritsma S, Yusah KM, Mayntz D, Hywel-Jones NL, Billen J, et al. The life of a dead ant: the expression of an adaptive extended phenotype. Am Nat 2009; 174:424–33; PMID:19627240; http://dx.doi.org/10. 1086/603640 Recently we presented how Camponotus ants in Thailand infected with the fungus Ophiocordyceps unilateralis are behaviorally manipulated into dying where the ...
متن کاملHost manipulation as a parasite transmission strategy when manipulation is exploited by non-host predators.
Trophically transmitted parasites often alter their intermediate host's phenotype, thereby predisposing hosts to increased predation. This is generally considered to be a parasite strategy evolved to enhance transmission to the next host. However, the adaptive value of host manipulation is not clear, as it may be associated with costs, such as increased susceptibility to predator species that a...
متن کاملThe evolution of parasite manipulation of host dispersal.
We investigate the evolution of manipulation of host dispersal behaviour by parasites using spatially explicit individual-based simulations. We find that when dispersal is local, parasites always gain from increasing their hosts' dispersal rate, although the evolutionary outcome is determined by the costs-to-benefits ratio. However, when dispersal can be non-local, we show that parasites invest...
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ژورنال
عنوان ژورنال: Communicative & Integrative Biology
سال: 2012
ISSN: 1942-0889
DOI: 10.4161/cib.18712