Reproductive Factors Affecting Responses of the Screwworm Fly, Cochliomyia hominivorax (Diptera: Calliphoridae), to an Attractant of Bacterial Origin

Hammack, Leslie; Bromel, Mary; Duh, F. M.; Gassner, George

doi:10.1093/aesa/80.6.775

Cited by 31 publications

(25 citation statements)

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“…and S. liquefaciens. Other workers have reported the attractive quality of only P. rettgeri (DeVaney et al 1973, Eddy et al 1975, Hammack et al 1987. These authors found Providencia rettgeri (reported as Proteus rettgeri) cultures to be attractive in olfactometer tests (Providencia rettgeri and Proteus rettgeri are considered homotypic synonyms and share the same type strain; Skerman et al 1980).…”

Section: Discussionmentioning

confidence: 99%

“…Hammack et al (1987) showed that a steam distillate of culture medium inoculated with Providencia (ϭProteus) rettgeri isolated from a screwworm larva strongly attracted gravid screwworm ßies. Hammack (1991) reported that fresh bovine blood, which does not release the attractive odors involved in host Þnding, stimulated as many or more females to oviposit than did ßuid from screwworm-infested wounds.…”

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confidence: 99%

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Volatiles Emitted From Eight Wound-Isolated Bacteria Differentially Attract Gravid Screwworms (Diptera: Calliphoridae) to Oviposit

Chaudhury¹,

Skoda²,

Sagel³

et al. 2010

J Med Entomol

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Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

Volatiles Emitted From Eight Wound-Isolated Bacteria Differentially Attract Gravid Screwworms (Diptera: Calliphoridae) to Oviposit

Chaudhury¹,

Skoda²,

Sagel³

et al. 2010

J Med Entomol

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“…5,6 Infested wounds release attractive odors to NWS, and the presence of bacterial infection elicits more oviposition. [7][8][9] During the 5 to 6 days of larval feeding, C. hominivorax burrow deeply into the host's tissues so that only the posterior segment and spiracles of the larvae are exposed. The third-instar larva leaves the host and pupates in the soil.…”

Section: Discussionmentioning

confidence: 99%

Umbilical myiasis in a human newborn

2007

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The new-world screw-worm fly, Cochliomyia hominivorax, is an obligate ectoparasite of domestic and wild animals, and in some cases may affect humans. Myiasis in the human neonatal period is a rare occurrence and almost exclusively found in neotropic areas. Although umbilical myiasis is well-recognized in animals, infestation of human umbilical cord and abdominal tissue is a rare occurrence. Once the diagnosis has been made, the treatment is usually straightforward and uncomplicated. In this article, a newborn infant from an urban area is reported with umbilical myiasis caused by fly larvae of C. hominivorax. The blowfly causing this infestation belongs to the family Calliphoridae (Diptera) and the genus Cochliomyia that usually infests only open wounds of animals.

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“…For example, female screwworm flies (Cochliomyia hominivorax) orientate to volatiles produced by a bacterium present in wounds associated with myiasis (flystrike) to find their cattle host (Hammack et al, 1987). Metabolic by-products inadvertently produced by a disease or immune response can result in odor cues that provide a reliable indicator of health and disease (Penn and Potts, 1998).…”

Section: Introductionmentioning

confidence: 99%

The Fecal Odor of Sick Hedgehogs (Erinaceus europaeus) Mediates Olfactory Attraction of the Tick Ixodes hexagonus

et al. 2011

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Parasite loads of animals vary among individuals, but the underlying mechanisms have not been fully identified. Here, we investigated whether health status of hedgehogs (Erinaceus europaeus) is correlated with tick burden, and whether chemical cues linked to the health status of the host mediate attraction of the tick Ixodes hexagonus. An ecological survey conducted over 10 years, involving 226 wild hedgehogs, revealed a strong association between health status and tick burden of hedgehogs, with healthy animals being less likely to carry ticks than unhealthy ones. Behavioral choice tests demonstrated that ticks display a preference for the fecal odor from sick hedgehogs compared with healthy ones. Chemical analysis of fecal odors using gas chromatography-mass spectrometry showed differences in the odor profile between sick and healthy hedgehogs. Sick animals tended to exhibit raised levels of the volatile aromatic heterocyclic compound indole in their feces. Ticks were attracted to indole when given the choice between indole and a solvent control. However, fecal matter from healthy hosts, with the addition of indole, was not attractive to ticks, suggesting that indole interacts with other, undetected compounds in mediating attraction. This study implies that it is the attraction to fecal odor that causes higher tick burdens in sick hedgehogs. Ticks might benefit from this preference by avoiding possible repulsion mechanisms of healthy hosts. We suggest that ticks potentially choose their host based on odor linked to the host's health status.

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Reproductive Factors Affecting Responses of the Screwworm Fly, Cochliomyia hominivorax (Diptera: Calliphoridae), to an Attractant of Bacterial Origin

Cited by 31 publications

References 0 publications

Volatiles Emitted From Eight Wound-Isolated Bacteria Differentially Attract Gravid Screwworms (Diptera: Calliphoridae) to Oviposit

Volatiles Emitted From Eight Wound-Isolated Bacteria Differentially Attract Gravid Screwworms (Diptera: Calliphoridae) to Oviposit

Umbilical myiasis in a human newborn

The Fecal Odor of Sick Hedgehogs (Erinaceus europaeus) Mediates Olfactory Attraction of the Tick Ixodes hexagonus

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