Colonization of Ephemeral Water Bodies in the Wheatbelt of Western Australia by Assemblages of Mosquitoes (Diptera: Culicidae): Role of Environmental Factors, Habitat, and Disturbance

被引:15
作者
Carver, Scott [1 ,2 ]
Spafford, Helen [1 ]
Storey, Andrew [1 ]
Weinstein, Philip [2 ]
机构
[1] Univ Western Australia, Sch Anim Biol M085, Crawley, WA 6009, Australia
[2] Univ Western Australia, Sch Populat Hlth M431, Crawley, WA 6009, Australia
关键词
dryland salinity; community; arbovirus; secondary salinization; temporary water; ROSS-RIVER-VIRUS; CAMPTORHYNCHUS THOMSON DIPTERA; DRYLAND SALINITY; FRESH-WATER; AQUATIC INVERTEBRATES; CULEX MOSQUITOS; INLAND AREAS; SALINIZATION; STREAM; BIODIVERSITY;
D O I
10.1603/022.038.0609
中图分类号
Q96 [昆虫学];
学科分类号
摘要
Environmental disturbance may have direct and indirect impacts on organisms. We studied the colonization of ephemeral water bodies by mosquitoes (Diptera: Culicidae) in the Wheatbelt region of southwest Western Australia, an area substantially affected by an expanding anthropogenic salinization. Mosquitoes frequently colonized ephemeral water bodies, responded positively to rainfall, mid populated smaller water bodies more densely than larger water bodies. We found that the habitat characteristics of ephemeral water bodies changed in association with salinity. Consequently relationships between salinity and abundance of colonizing mosquitoes were direct (salinity-mosquito) and indirect (salinity-water body characteristics-mosquito). Overall, the structure of mosquito assemblages changed with increasing salinity, favoring an increased regional distribution and abundance of Aedes camptorhynchus Thomson (Diptera: Culicidae), a vector of Ross river vir-us (RRV; Togoviridae: Alphavirus). We conclude secondary salinization in the Western Australia Wheatbelt results in enhanced vectorial potential for RRV transmission.
引用
收藏
页码:1585 / 1594
页数:10
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