Influence of rain and malathion on the oviposition and development of blowflies (Diptera: Calliphoridae) infesting rabbit carcasses in Kelantan, Malaysia

Mahat, Naji Arafat; Zafarina, Zainuddin; Jayaprakash, Paul T.

doi:10.1016/j.forsciint.2009.07.008

Cited by 50 publications

(44 citation statements)

References 15 publications

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“…During this trial, there was a short, intense rain event (Ϸ2Ð 4 cm/h) during the day that could have affected oviposition. Rainfall has been shown to inhibit adult blow ßy activity and even prolong larval development (Mahat et al 2009). Mahat et al (2009) reported that freshly hatched larvae of Chrysomya rufifacies (Macquart) (Diptera: Calliphoridae) always were found 1Ð2 d later than expected after rainfall.…”

Section: Discussionmentioning

confidence: 99%

Environmental Factors Associated With <I>Phormia regina</I> (Diptera: Calliphoridae) Oviposition

Berg

Benbow

2013

jnl. med. entom.

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The period of insect activity (PIA) contributes information to estimates of the minimum postmortem interval in forensic investigations and begins with blow fly attraction and oviposition on a resource such as carrion or a human corpse. Incorrectly estimating nocturnal oviposition could alter PIA estimates by up to at least 12 h; however, the extent of this difference in PIA would depend on environmental and geographic factors. To date, the literature on the extent and frequency of blow fly nocturnal oviposition is conflicting. Our objectives were as follows: 1) to measure the effects of artificial lighting and beef liver bait height above ground on nocturnal and diurnal oviposition, and 2) to monitor oviposition through the night on swine carcasses exposed to the environment at dusk in different habitats over 3 yr. We documented no consistent nocturnal oviposition in any trial using beef liver or on carcasses in different habitats and seasons. There were statistically significant effects of light and height of bait above the ground on diurnal oviposition of Phormia regina (Meigen) in August of 2009, the only month with mean night temperatures > 20 degrees C. In August there also was significantly greater diurnal oviposition on liver bait placed on the ground compared with bait elevated 1 m. Our results suggest that nocturnal oviposition is rare in the natural environment. However, we found enhanced diurnal oviposition of P. regina under conditions of ambient temperatures > 20 degrees C the night before oviposition. Additional studies are needed to better understand the ecological mechanisms governing blow fly oviposition important to forensic entomology.

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Section: Discussionmentioning

confidence: 99%

Environmental Factors Associated With <I>Phormia regina</I> (Diptera: Calliphoridae) Oviposition

Berg

Benbow

2013

jnl. med. entom.

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“…The oviposition and development of insects can be affected by bioclimatic factors such as the photoperiod and temperature [32][33][34][35][36][37]. This is of major importance for estimation of PMI by forensic entomologists.…”

Section: Extrinsic Conditions and Their Influence On Insectsmentioning

confidence: 99%

“…The development can also be accelerated or retarded according to the ambient temperature [36,37]. In addition, rain and thus the humidity influences oviposition and development of blowflies [33]. If entomological experiments are done in the lab, it is therefore important to use a realistic photoperiod 12:12 h (light/ dark), and a humidity and temperature in function of the investigated insect species and the climatic conditions of the region where the forensic case is situated.…”

Section: Extrinsic Conditions and Their Influence On Insectsmentioning

confidence: 99%

“…However, it is not easy to set-up statistical valid tests. In addition, experiments must be approved by an animal ethics committee [33] and the delay of acceptation can be very long. The animal is mostly sacrificed 30 min [10] after drug administration and the whole animal [9,[53][54][55], a single organ (mostly the liver) or the muscle [14,32,[56][57][58][59][60][61][62]] are thereafter exposed to insect larvae under laboratory conditions.…”

Section: Experimental Set-upmentioning

confidence: 99%

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Entomotoxicology, experimental set-up and interpretation for forensic toxicologists

Gosselin¹,

Wille²,

Fernández³

et al. 2011

Forensic Science International

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“…Environmental factors such as temperature [7][8][9], humidity [8,10] and sunlight [8,11] are known to influence colonisation times. Bacteria inhabiting the corpse can also be highly influential in regulating chemo-attraction and choice of oviposition sites [1,[12][13].…”

Section: Introductionmentioning

confidence: 99%

Microbial effects on the development of forensically important blow fly species

Crooks

Bulling

Barnes

2016

Forensic Science International

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Colonisation times and development rates of specific blow fly species are used to estimate the minimum Post Mortem Interval (mPMI). The presence or absence of bacteria on a corpse can potentially affect the development and survival of blow fly larvae. Therefore an understanding of microbial-insect interactions is important for improving the interpretation of mPMI estimations. In this study, the effect of two bacteria (Escherichia coli and Staphylococcus aureus) on the growth rate and survival of three forensically important blow fly species (Lucilia sericata, Calliphora vicina and Calliphora vomitoria) was investigated.Sterile larvae were raised in a controlled environment (16:8h day: night light cycle, 23:21˚C day: night temperature cycle and a constant 35% relative humidity) on four artificial diets prepared with 100µl of 10 5 CFU bacterial solutions as follows: 1) E. coli 2) S. aureus 3) a 50:50 E. coli: S. aureus mix and 4) a sterile bacteria-free control diet. Daily measurements (length, width and weight) were taken from first instar larvae through to the emergence of adult flies. Survival rates were also determined at pupation and adult emergence. Results indicate that bacteria were not essential for the development of any of the blow fly species.However, larval growth rates were affected by bacterial diet, with effects differing between blow fly species. Peak larval weights also varied according to species-diet combination; C.vomitoria had the largest weight on E. coli and mixed diets, C. vicina had the largest weight on S. aureus diets, and treatment had no significant effect on the peak larval weight of L.sericata. These results indicate the potential for the bacteria that larvae are exposed to during development on a corpse to alter both developmental rates and larval weight in some blow fly species.

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Influence of rain and malathion on the oviposition and development of blowflies (Diptera: Calliphoridae) infesting rabbit carcasses in Kelantan, Malaysia

Cited by 50 publications

References 15 publications

Environmental Factors Associated With <I>Phormia regina</I> (Diptera: Calliphoridae) Oviposition

Environmental Factors Associated With <I>Phormia regina</I> (Diptera: Calliphoridae) Oviposition

Entomotoxicology, experimental set-up and interpretation for forensic toxicologists

Microbial effects on the development of forensically important blow fly species

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