The effects of Plagiorchis noblei (Trematoda: Plagiorchiidae) matacercariae on the susceptibility of Aedes aegypti larvae to predation by guppies (Poecilia reticulata) and meadow voles (Microtus pennsylvanicus)

Webber, R. A.; Rau, Manfred E.; Lewis, D. J.

doi:10.1139/z87-353

Cited by 17 publications

(9 citation statements)

References 9 publications

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“…A trematode using larval mosquitoes as an intermediate host, and requiring consumption of the mosquito by the definitive host, alters mosquito behavior to increase predation risk (138). In contrast, a nematode requiring survival of the mosquito for completion of development does not enhance antipredator responses of mosquito larvae to reduce predation risk (143).…”

Section: Predationmentioning

confidence: 99%

Species Interactions Among Larval Mosquitoes: Context Dependence Across Habitat Gradients

Juliano

2009

Annu. Rev. Entomol.

267

311

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Biotic interactions involving mosquito larvae are context dependent, with effects of interactions on populations altered by ecological conditions. Relative impacts of competition and predation change across a gradient of habitat size and permanence. Asymmetrical competition is common and ecological context changes competitive advantage, potentially facilitating landscape-level coexistence of competitors. Predator effects on mosquito populations sometimes depend on habitat structure and on emergent effects of multiple predators, particularly interference among predators. Nonlethal effects of predators on mosquito oviposition, foraging, and life history are common, and their consequences for populations and for mosquito-borne disease are poorly understood. Contextdependent beneficial effects of detritus shredders on mosquitoes occur in container habitats, but these interactions appear to involve more than simple resource modification by shredders. Investigations of context-dependent interactions among mosquito larvae will yield greater understanding of mosquito population dynamics and provide useful model systems for testing theories of context dependence in communities.

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Section: Predationmentioning

confidence: 99%

Species Interactions Among Larval Mosquitoes: Context Dependence Across Habitat Gradients

Juliano

2009

Annu. Rev. Entomol.

267

311

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“…In a more recent study, Moore ( 1983) demonstrated that starlings tended to feed preferentially on isopods infected with a larval acanthocephalan, Plagiorhynchus cylindraceus. Very recent work by Webber et al ( 1987) suggests that infection of mosquito larvae with metacercariae of the digenean Plagiorchis noblei does not influence susceptibility of infected mosquitoes to predation by guppies, but that infection increases susceptibility to predation by the vole definitive host, Microtus pennsylvanicus.…”

Section: Impact Of Infection and Disease On Individual Hosts Effects mentioning

confidence: 99%

The Impact of Infection and Disease on Animal Populations: Implications for Conservation Biology

Scott

1988

Conservation Biology

339

276

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The distinction between infection and disease may be subtle, and detection of disease in wild animal populations depends on the sophistication of sampling design and diagnostic techniques used in examining animal populations. The impact of infection on the host is dependent not only on the pathogenicity of the infection but also on the interactions between infection and other factors such as nutritional status and stress. In this paper I review mechanisms by which parasitic infections can influence the survival, reproduction, and movement patterns of infected individuals. I then discuss the implications for host populations, in particular with reference to the potential of parasites to regulate the abundance of host populations. The implications of infection and disease on host populations are then extended to demonstrate consequences on community structure. Difficulties associated with assessing the level of infection or disease in wild animal populations are discussed and used to account for the frequently held belief that disease rarely occurs in wild animal populations. Finally, the consequences of infection and disease for conservation biology are outlined. Disease is considered with regard to introductions and maintenance of genetic diversity. Emphasis is placed on the dangers associated with forcing animals into high‐density situations. High host densities lead directly to increased disease because of increased transmission rates, and also indirectly increase disease because of synergistic interactions between infection, reduced nutritional status of the host population, and increased stress all associated with high‐density situations. I recommend a surveillance program for monitoring prevalence or intensity in selected indicator age classes as a first step for preventing major disease problems in animal populations. I conclude that infection and disease will be an important determinant of the health and well‐being of animal populations, and as such must be considered in the design of conservation policy.

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“…Among the most dramatic effects of parasites are changes in the morphology, coloration, and behavior of their hosts (Oetinger and Nickol 1981, Moore 1983, Hurd 1990). These effects often are especially pronounced when the parasite requires transmission among hosts through the food chain in order to complete its life cycle (Webber et al 1987). In these instances, transitions in host phenotype are typically associated with the attainment of infectivity to the next host in the life cycle of the parasite, and the shifts in host phenotype can be interpreted as enhancing the effectiveness of transmission (Bethel and Holmes 1974, Poulin et al 1992, Tierney et al 1993, Robb and Reid 1996, Bakker et al 1997; but see Poulin 1995).…”

mentioning

confidence: 99%

Parasite-Associated Phenotype Modifications in Threespine Stickleback

Ness¹,

Foster²

1999

Oikos

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show abstract

The effects of Plagiorchis noblei (Trematoda: Plagiorchiidae) matacercariae on the susceptibility of Aedes aegypti larvae to predation by guppies (Poecilia reticulata) and meadow voles (Microtus pennsylvanicus)

Cited by 17 publications

References 9 publications

Species Interactions Among Larval Mosquitoes: Context Dependence Across Habitat Gradients

Species Interactions Among Larval Mosquitoes: Context Dependence Across Habitat Gradients

The Impact of Infection and Disease on Animal Populations: Implications for Conservation Biology

Parasite-Associated Phenotype Modifications in Threespine Stickleback

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