Wing size and parity as markers of cohort demography for potential Anopheles (Culicidae: Diptera) malaria vectors in the Republic of Korea

Journal of vector ecology: journal of the Society for Vector Ecology

article

Desmond H. Foley¹  Richard C. Wilkerson¹  Heung Chul Kim⁴  Terry A. Klein⁴  Myung-Soon Kim⁴  Cong Li¹  David M. Levin¹  Leopoldo M. Rueda¹ 

[1]Walter Reed Biosystematics Unit, Department of Entomology, Walter Reed Army Institute of Research

[2]Entomology Department, National Museum of Natural History, Smithsonian Institution

[3]Formerly associated

[4]Force Health Protection and Preventive Medicine, Unit #15281

关键词: Anopheles sinensis;    seasonality;    malaria;    parity;    mortality;    wing length;    population dynamics;    Korea.;   

DOI  :  10.1111/jvec.12406

来源: Society for Vector Ecology

【 摘 要 】

Wing lengths of parous (P) and nulliparous (NP) PCR-identified female Anopheles belenrae, An. kleini, An. pullus, and An. sinensis were determined from weekly trap collections at Camp Humphreys (CH), Ganghwa Island (GH), and Warrior Base (WB), Republic of Korea (ROK) during Jun-Oct, 2009. Wing length was greatest at the beginning and end of the study period. Wing length of NPs tended to be less than that of Ps before the period of maximum greening (Jul-Aug) but greater thereafter. Larger specimens tended to be Ps, and weekly wing length of Ps appeared less variable than NPs, possibly due to selection. A bimodal wing length frequency distribution of An. sinensis suggested two forms comprising small- (≤4.5 mm, SW) and large-winged females (>4.5 mm, LW). LW comprised the majority of peaks in abundance, however %SW, while still a minority, often increased during these times suggesting a density-dependent effect. At WB and GH, a two to three-week periodicity in %SW was obvious for An. sinensis and An. kleini. Analyses of weather station and satellite data showed that smaller-winged An. sinensis were associated with warmer, more humid, and greener times of the year. SW and LW specimens possibly result from agricultural practices that are common across large areas; regular synchronous peaks of SW and LW were observed from different sites. Peaks in SW Ps followed peaks in NPs in a ‘ripple effect’ one to two weeks apart, suggesting that wing length combined with parity could be used to follow the emergence and survival of mosquito cohorts.

【 授权许可】

Unknown