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Modification of hosts' behavior by a parasite: field evidence for adaptive manipulation.
The results indicate that the modifications induced by P. laevis are specific to the definitive host and do not increase the risk of predation by inappropriate hosts, here the adult edible frog Rana esculenta.
Co-occurrences of parasite clones and altered host phenotype in a snail-trematode system.
Confrontation of cryptic diversity and mate discrimination within Gammarus pulex and Gammarus fossarum species complexes
DNA barcoding is used to assess genetic diversity within and among amphipod populations and examined mate discrimination and pre-copulatory pair formation between genetically divergent individuals, suggesting cryptic diversity is common in the G. fossarum/G.pulex groups and that pre-zygotic isolation through mate discrimination, rather than post-zyGotic incompatibility, is likely to drive cryptic speciation.
Larval size in acanthocephalan parasites: Influence of intraspecific competition and effects on intermediate host behavioural changes
This study indicates that behavioural manipulation is a condition-dependant phenomenon that needs the integration of parasite-related variables to be fully understood.
Factors influencing infection patterns of trophically transmitted parasites among a fish community: host diet, host-parasite compatibility or both?
- C. Lagrue, D. Kelly, A. Hicks, R. Poulin
- Biology, Environmental ScienceJournal of fish biology
- 1 August 2011
Host feeding behaviour best explained infection patterns of the trematode Coitocaecum parvum among the fish community and the relative influence of encounter and compatibility filters on infection levels appeared to vary between host-parasite species associations.
Effects of Clonality in Multiple Infections on the Life-History Strategy of the Trematode Coitocaecum parvum in Its Amphipod Intermediate Host
The results suggest that the dynamics of competition between coinfecting parasites, although influenced by numerous external factors, is also modulated by genetic relatedness among parasites.
Life cycle abbreviation in the trematode Coitocaecum parvum: can parasites adjust to variable conditions?
It is demonstrated experimentally that C. parvum can modulate its development in its amphipod intermediate host and adopt either the abbreviated or the normal life cycle depending on current transmission opportunities or the degree of intra‐host competition among individual parasites.
Spines and behaviour as defences against fish predators in an invasive freshwater amphipod
Experimental shading alters leaf litter breakdown in streams of contrasting riparian canopy cover
Summary 1. Headwater stream ecosystems are primarily heterotrophic, with allochthonous organic matter being the dominant energy. However, sunlight indirectly influences ecosystem structure and…
Bottom - up regulation of parasite population densities in freshwater ecosystems
The results support the strong bottom – up coupling of consumer and resource densities, but suggest that intraspecifi c competition among parasites may be weaker when hosts are abundant: high host density promotes greater parasite population density, but also reduces the number of parasites per individual host.