Muturi Ephantus J, Gardner Allison M, Bara Jeffrey J
Illinois Natural History Survey, University of Illinois at Urbana-Champaign, 1816 S. Oak St., Champaign, IL 61820.
Department of Entomology, University of Illinois at Urbana-Champaign, 505 S. Goodwin Ave., Urbana, IL 61801.
Environ Entomol. 2015 Oct;44(5):1308-15. doi: 10.1093/ee/nvv121. Epub 2015 Jul 29.
We examined how leaf litter of alien invasive honeysuckle (Lonicera maackii Rupr.) either alone or in combination with leaf litter of one of two native tree species, sugar maple (Acer saccharum Marshall) and northern red oak (Quercus rubra L.), affects the ecology of Culex restuans Theobald, Ochlerotatus triseriatus Say, and Ochlerotatus japonicus Theobald. Experimental mesocosms containing single species litter or a mixture of honeysuckle and one of two native tree species litter were established at South Farms and Trelease Woods study sites in Urbana, IL, and examined for their effect on 1) oviposition site selection by the three mosquito species, and 2) adult production and body size of Oc. triseriatus and Oc. japonicus. There were no significant effects of study site and leaf treatment on Oc. japonicus and Oc. triseriatus oviposition preference and adult production. In contrast, significantly more Cx. restuans eggs rafts were collected at South Farms relative to Trelease Woods and in honeysuckle litter relative to native tree species litter. Significantly larger adult females of Oc. japonicus and Oc. triseriatus were collected at South Farms relative to Trelease Woods and in honeysuckle litter relative to native tree species litter. Combining honeysuckle litter with native tree species litter had additive effects on Cx. restuans oviposition preference and Oc. japonicus and Oc. triseriatus body size, with the exception of honeysuckle and northern red oak litter combination, which had antagonistic effects on Oc. triseriatus body size. We conclude that input of honeysuckle litter into container aquatic habitats may alter the life history traits of vector mosquito species.
我们研究了外来入侵金银花（金银忍冬）的落叶单独或与两种本地树种之一的落叶——糖枫（糖槭）和北方红栎——混合时，如何影响静斑库蚊、三带喙库蚊和日本伊蚊的生态学特征。在伊利诺伊州厄巴纳市的南农场和特里利斯森林研究地点，建立了包含单一物种落叶或金银花与两种本地树种之一的落叶混合物的实验中型生态系统，并研究其对以下方面的影响：1）三种蚊虫的产卵地选择；2）三带喙库蚊和日本伊蚊的成虫产量及体型。研究地点和落叶处理对日本伊蚊和三带喙库蚊的产卵偏好及成虫产量没有显著影响。相比之下，相对于特里利斯森林，在南农场收集到的静斑库蚊卵块显著更多；相对于本地树种落叶，在金银花落叶中收集到的静斑库蚊卵块显著更多。相对于特里利斯森林，在南农场收集到的日本伊蚊和三带喙库蚊成年雌蚊体型显著更大；相对于本地树种落叶，在金银花落叶中收集到的日本伊蚊和三带喙库蚊成年雌蚊体型显著更大。将金银花落叶与本地树种落叶混合对静斑库蚊的产卵偏好以及日本伊蚊和三带喙库蚊的体型有累加效应，但金银花和北方红栎落叶的组合对三带喙库蚊的体型有拮抗效应。我们得出结论，金银花落叶进入容器水生栖息地可能会改变媒介蚊虫物种的生活史特征。
