Protection first then facilitation: a manipulative parasite modulates the vulnerability to predation of its intermediate host according to its own developmental stage. 2011

Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
Université de Bourgogne, Laboratoire Biogéosciences, UMR CNRS 5561, Equipe Ecologie Evolutive, 6 Boulevard Gabriel, 21000 Dijon, France. lucile.dianne@u-bourgogne.fr

Many trophically transmitted parasites with complex life cycles manipulate their intermediate host behavior in ways facilitating their transmission to final host by predation. This facilitation generally results from lowering host's antipredatory defenses when the parasite is infective to the final host. However, a recent theoretical model predicts that an optimal parasitic strategy would be to protect the intermediate host from predation when noninfective, before switching to facilitation when the infective stage is reached. We tested this hypothesis in the fish acanthocephalan parasite Pomphorhynchus laevis using the amphipod Gammarus pulex as intermediate host. Gammarids parasitized by noninfective stage of P. laevis (acanthella) hid significantly more under refuges than uninfected ones. In addition, acanthella-infected gammarids were less predated upon by trout than uninfected ones. As predicted, a switch toward decreased antipredatory behavior of G. pulex and enhanced vulnerability to predation was found when P. laevis reached the stage infective to its final host. The parasites appear to be able to exploit plasticity in host antipredatory responses, and shift the host optimal response toward their own optimal balance.

UI MeSH Term Description Entries
D011235 Predatory Behavior Instinctual behavior pattern in which food is obtained by killing and consuming other species. Predation,Behavior, Predatory,Predatory Behaviors
D004924 Escape Reaction Innate response elicited by sensory stimuli associated with a threatening situation, or actual confrontation with an enemy. Flight Reaction,Escape Reactions,Flight Reactions,Reaction, Escape,Reaction, Flight,Reactions, Escape,Reactions, Flight
D005602 France A country in western Europe bordered by the Atlantic Ocean, the English Channel, the Mediterranean Sea, and the countries of Belgium, Germany, Italy, Spain, Switzerland, the principalities of Andorra and Monaco, and by the duchy of Luxembourg. Its capital is Paris. Corsica,Saint Pierre and Miquelon,Miquelon and Saint Pierre,Miquelon and St. Pierre,St. Pierre and Miquelon
D006790 Host-Parasite Interactions The relationship between an invertebrate and another organism (the host), one of which lives at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically. Host-Parasite Relations,Parasite-Host Relations,Host-Parasite Relationship,Parasite-Host Interactions,Host Parasite Interactions,Host Parasite Relations,Host Parasite Relationship,Host-Parasite Interaction,Host-Parasite Relation,Host-Parasite Relationships,Interaction, Host-Parasite,Interaction, Parasite-Host,Interactions, Host-Parasite,Interactions, Parasite-Host,Parasite Host Interactions,Parasite Host Relations,Parasite-Host Interaction,Parasite-Host Relation,Relation, Host-Parasite,Relation, Parasite-Host,Relations, Host-Parasite,Relations, Parasite-Host,Relationship, Host-Parasite,Relationships, Host-Parasite
D000049 Acanthocephala A phylum of parasitic worms, closely related to tapeworms and containing two genera: Moniliformis, which sometimes infects man, and Macracanthorhynchus, which infects swine. Thorny-Headed Worms,Acanthocephalas,Thorny Headed Worms,Thorny-Headed Worm,Worm, Thorny-Headed,Worms, Thorny-Headed
D000818 Animals Unicellular or multicellular, heterotrophic organisms, that have sensation and the power of voluntary movement. Under the older five kingdom paradigm, Animalia was one of the kingdoms. Under the modern three domain model, Animalia represents one of the many groups in the domain EUKARYOTA. Animal,Metazoa,Animalia
D014337 Trout Various fish of the family SALMONIDAE, usually smaller than salmon. They are mostly restricted to cool clear freshwater. Some are anadromous. They are highly regarded for their handsome colors, rich well-flavored flesh, and gameness as an angling fish. The genera Salvelinus, Salmo, and ONCORHYNCHUS have been introduced virtually throughout the world. Chars,Salvelinus,Char
D020387 Food Chain The sequence of transfers of matter and energy from organism to organism in the form of FOOD. Food chains intertwine locally into a food web because most organisms consume more than one type of animal or plant. PLANTS, which convert SOLAR ENERGY to food by PHOTOSYNTHESIS, are the primary food source. In a predator chain, a plant-eating animal is eaten by a larger animal. In a parasite chain, a smaller organism consumes part of a larger host and may itself be parasitized by smaller organisms. In a saprophytic chain, microorganisms live on dead organic matter. Food Web,Parasite Chain,Predator Chain,Saprophytic Chain,Chain, Food,Chain, Parasite,Chain, Predator,Chain, Saprophytic,Chains, Food,Chains, Parasite,Chains, Predator,Chains, Saprophytic,Food Chains,Food Webs,Parasite Chains,Predator Chains,Saprophytic Chains,Web, Food,Webs, Food
D033304 Amphipoda An order of mostly marine CRUSTACEA containing more than 5500 species in over 100 families. Like ISOPODA, the other large order in the superorder Peracarida, members are shrimp-like in appearance, have sessile compound eyes, and no carapace. But unlike Isopoda, they possess thoracic gills and their bodies are laterally compressed. Amphipods,Amphipod,Amphipodas

Related Publications

Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
November 1987, Oecologia,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
January 2013, The Journal of experimental biology,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
May 2023, The Journal of animal ecology,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
July 2011, Oecologia,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
January 2010, Journal of biomedicine & biotechnology,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
January 1987, Annales de parasitologie humaine et comparee,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
July 2008, Parasitology,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
July 2019, Bulletin of mathematical biology,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
April 2016, Ecology and evolution,
Lucile Dianne, and Marie-Jeanne Perrot-Minnot, and Alexandre Bauer, and Mickaël Gaillard, and Elsa Léger, and Thierry Rigaud
February 2005, Proceedings of the National Academy of Sciences of the United States of America,
Copied contents to your clipboard!