Mass occurrence of flies and seasonal changes in their species composition in the Tsunami disaster region after 2011 the Great East Japan Earthquake

Hayashi, Toshihiko; Watanabe, Haruna; Watanabe, Mamoru; Kobayashi, Mutsuo

doi:10.7601/mez.63.85

Cited by 5 publications

(2 citation statements)

References 5 publications

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“…In addition, re-colonisation of the species after reconstruction might not be difficult because large bees, such as bumble bees, have been observed to show high dispersal ability and rapid range expansion [ 28 , 29 ]. The abundance of medically important pests, such as flies and horseflies, tended to be higher, but not significantly so, differing from the higher rates observed in the coastal areas of northern Japan immediately after flooding following the tsunami [ 30 , 31 ].…”

Section: Discussionmentioning

confidence: 99%

Pollinators and Other Flying Insects inside and outside the Fukushima Evacuation Zone

2015

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Following the accident at the Fukushima Daiichi nuclear power plants in 2011, a large evacuation zone was imposed in an area where residents had historically managed forests and farmlands. Thus, the human activities that had maintained biodiversity and ecosystem services in the zone were discontinued. Such change can affect insects, a biodiversity component that is relatively tolerant to radiation exposure. In this study, we investigated flying insects, including pollinators, important ecosystem providers inside and outside the zone, using Malaise traps. The results showed that the number of individuals of Xylocopa appendiculata, the largest Apidae species in the region, was significantly lower inside the evacuation zone than outside it, whereas those of other insects were not lower significantly. Although we suggest that flying insects and their ecosystem services (i.e., benefits from them such as pollination) 3 years after the disaster were not critically impacted, it is important to monitor the long-term effects of the evacuation in the future.

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Section: Discussionmentioning

confidence: 99%

Pollinators and Other Flying Insects inside and outside the Fukushima Evacuation Zone

2015

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“…In the aftermath of the earthquake and subsequent tsunami that occurred in northern Japan on March 11, 2011, outbreaks of blowflies emerged from rotting fish, and affected public health [1]. Typically, the larvae of blowfly species produce wound myiasis.…”

Section: Introductionmentioning

confidence: 99%

Fatty Acid Solubilizer from the Oral Disk of the Blowfly

2013

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BackgroundBlowflies are economic pests of the wool industry and potential vectors for epidemics. The establishment of a pesticide-free, environmentally friendly blowfly control strategy is necessary. Blowflies must feed on meat in order to initiate the cascade of events that are involved in reproduction including juvenile hormone synthesis, vitellogenesis, and mating. During feeding blowflies regurgitate salivary lipase, which may play a role in releasing fatty acids from triglycerides that are found in food. However, long-chain fatty acids show low solubility in aqueous solutions. In order to solubilize and ingest the released hydrophobic fatty acids, the blowflies must use a solubilizer.MethodologyWe applied native PAGE, Edman degradation, cDNA cloning, and RT-PCR to characterize a protein that accumulated in the oral disk of the black blowfly, Phormia regina. In situ hybridization was carried out to localize the expression at the cellular level. A fluorescence competitive binding assay was used to identify potential ligands of this protein.ConclusionA protein newly identified from P. regina (PregOBP56a) belonged to the classic odorant-binding protein (OBP) family. This gene was expressed in a cluster of cells that was localized between pseudotracheae on the oral disk, which are not accessory cells of the taste peg chemosensory sensilla that normally synthesize OBPs. At pH 7 and pH 6, PregOBP56a bound palmitic, stearic, oleic, and linoleic acids, that are mainly found in chicken meat. The binding affinity of PregOBP56a decreased at pH 5. We propose that PregOBP56a is a protein that solubilizes fatty acids during feeding and subsequently helps to deliver the fatty acids to the midgut where it may help in the process of reproduction. As such, PregOBP56a is a potential molecular target for controlling the blowfly.

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Decade long upsurge in mutations associated with pyrethroid resistance in bed bug populations in the USA

et al. 2022

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Mass occurrence of flies and seasonal changes in their species composition in the Tsunami disaster region after 2011 the Great East Japan Earthquake

Cited by 5 publications

References 5 publications

Pollinators and Other Flying Insects inside and outside the Fukushima Evacuation Zone

Pollinators and Other Flying Insects inside and outside the Fukushima Evacuation Zone

Fatty Acid Solubilizer from the Oral Disk of the Blowfly

Decade long upsurge in mutations associated with pyrethroid resistance in bed bug populations in the USA

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