Search results for "Host-switching"

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Chemical host detection and differential attraction in a parasitic pea crab infecting two echinoids

2011

Mechanisms of host detection and host choice are important for mobile parasites or symbionts that frequently move among host individuals. The parasitic pea crab Dissodactylus primitivus is an ectoparasite exploiting asymmetrically two spatangoid echinoid hosts, Meoma ventricosa and Plagiobrissus grandis. The entire life cycle takes place on M. ventricosa, while only adults colonize P. grandis, the host where female's fecundity is the greatest. Dissodactylus primitivus frequently exhibits host-switching, a behaviour that raises the question of host detection. To test if adult crabs are able to detect potential hosts and are attracted to the host where their fitness is greater, crab olfactory…

0106 biological sciences[ SDV.MP.PAR ] Life Sciences [q-bio]/Microbiology and Parasitology/Parasitologyanimal structuresChemical detectionZoologyAquatic ScienceGeneralist and specialist species010603 evolutionary biology01 natural sciencesMeoma ventricosaPea crab[ SDV.EE.IEO ] Life Sciences [q-bio]/Ecology environment/Symbiosis[SDV.MP.PAR]Life Sciences [q-bio]/Microbiology and Parasitology/ParasitologyEcology Evolution Behavior and SystematicsDissodactylus primitivus[ SDE.BE ] Environmental Sciences/Biodiversity and EcologyPea crabbiologyDecapodaEcology010604 marine biology & hydrobiologyfood and beveragesImprintingbiology.organism_classificationFecundityAttractionCrustaceanParasiteHabitatHost-switchingEchinoidea [Sea urchins]Echinoid[SDE.BE]Environmental Sciences/Biodiversity and Ecology[SDV.EE.IEO]Life Sciences [q-bio]/Ecology environment/Symbiosis
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