Seasonal Abundance and Diversity of Culicoides Biting Midges in Livestock Sheds in Kanchanaburi Province, Thailand

Autor: Arunrat Thepparat, Naoto Kamata, Padet Siriyasatien, Waranya Prempree, Kannika Dasuntad, Boonruam Chittsamart, Sunisa Sanguansub
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Insects, Vol 15, Iss 9, p 701 (2024)
Druh dokumentu: article
ISSN: 15090701
2075-4450
DOI: 10.3390/insects15090701
Popis: Culicoides biting midges were collected using UV light traps from nine livestock farms in Kanchanaburi Province, Thailand. Collections were made one night per month from June 2020 to May 2021 to determine the seasonal changes and spatial distribution of the Culicoides assemblage. The influence of four environmental factors (temperature, rainfall, humidity, and wind speed), types of animals in each shed (cattle, pigs, and avians), and neighboring animals (those in the other sheds and their proximity) were assessed. A subsample of 130,670 out of a total of 224,153 specimens collected was identified and counted. The collections were predominantly female (76.9%), though males were also commonly collected (23.1%). The dominant species included C. peregrinus (97,098 individuals; 43.0%), C. oxystoma (55,579; 24.6%), C. arakawae (45,996; 20.4%), and C. imicola (15,703; 7.0%), while other species accounted for the remaining 9777 individuals (4.4%). Trap captures were strongly influenced by seasons and animal sheds. Cattle exhibited the greatest effect on the community, likely due to their large biomass. Humidity and temperature had a positive effect on trap captures, whereas wind speed exhibited a negative effect. Cattle positively influenced all major species, except for C. arakawae, which showed a positive association with avians. A “neighboring effect” was also observed. Additionally, the lowest dispersal ability of C. arakawae was suggested.
Databáze: Directory of Open Access Journals
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