Studies on the species and seasonal incidence of Culicoides in Tokyo area

Ueno, Hakaru; Kitaoka, Shigeo; Ishihara, T.

doi:10.7601/mez.7.19

Cited by 2 publications

(2 citation statements)

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“…C. maculatus has been found in areas with lower temperatures in summer, while C. oxystoma only inhabits south and west Japan, where the temperatures are relatively high (Takebe et al 1989;Wada 1999). The activity period of adult C. maculatus during the year was observed longer than that of C. oxystoma at same collection sites and extended to late autumn or early winter (Ueno et al 1956;Yanase, personal communication). It is known that temperature also has an impact on the developing stage of Culicoides species (Kitaoka 1982;Bishop et al 1996) and, thus, the presence of adult insects.…”

Section: Discussionmentioning

confidence: 93%

Flight behavior of adult Culicoides oxystoma and Culicoides maculatus under different temperatures in the laboratory

et al. 2010

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The flight behavior of adult Culicoides biting midges is associated with their likelihood to reach nearby host animals and spread diseases. Therefore, evaluating the effects of atmospheric factors on the flight performances of these insects is important for understanding the spread of diseases in various circumstances. We evaluated the effects of different temperatures on the flight behavior of Culicoides oxystoma and Culicoides maculatus under laboratory conditions. The flight activities for both species particularly increased in the range between 10°C and 20°C, while the activities under 10°C were very limited for both species. The temperature when one half of the proportion of insects had flown was estimated to be 18.1°C for C. oxystoma and slightly higher than the value of 17.4°C for C. maculatus by fitting sigmoid curves. However, the wide 95% confidence interval observed for C. maculatus did not statistically justify the difference. The flight behavior of adult Culicoides biting midges was highly influenced by temperature. Our results would be of use for modeling studies or geographical analyses of diseases transmitted by these insects.

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Section: Discussionmentioning

confidence: 93%

Flight behavior of adult Culicoides oxystoma and Culicoides maculatus under different temperatures in the laboratory

et al. 2010

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“…In relation to the transmission of bovine and equine onchocerciasis in Japan, Hosoya et al (1956) dissected several species of Simulium and Culicoides collected in the endemic areas, such as Tottori in western Honshu, Fukushima and Aomori in northern Honshu, but failed to detect any larvae of Onchocerca, though they found some flies infected with larvae of nonfilarial nematodes bearing a sharply pointed tail. Ueno et al (1956) also examined about 16,000 females of four Culicoides species caught by light traps in Tokyo and found no Onchocerca larvae. There was since then no investigation on the vectors of these zoonotic onchocerciasis in Japan.…”

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confidence: 99%