Hatching asynchrony affects intraspecific competition among larval mosquitoes

IF 2 3区 农林科学 Q2 ENTOMOLOGY
Melanie Szasz, Katherine G. Evans, Steven A. Juliano
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引用次数: 0

Abstract

Abstract Image

孵化异步影响幼蚊之间的种内竞争
伊蚊卵可能同步孵化,产生年龄和大小相似的个体,也可能不同步孵化,产生年龄和大小不同的个体,这取决于降雨量。多种淡水物种的幼体发育同步性也有类似的变化。与同步孵化相比,我们检验了异步孵化通过以下方式改变埃及伊蚊(Diptera: Culicidae)种内竞争的其他假设:(1)优先效应;或(2)减少时间上的重叠。我们在同一时间(同步孵化)或相隔 4 天(异步孵化)将成对的新孵幼虫放入装有食物的水瓶中,并记录所孵化成虫的存活率、性别、发育时间和翅长。与同步孵化相比,异步孵化产生的雌性成虫体型更大,但对雄性成虫的体型、存活率和发育时间没有影响。对于初孵成鱼,与同步孵化相比,异步孵化产生的雌雄成鱼体型更大,发育时间更短。这些结果与异步孵化减少了种内竞争的影响这一假设是一致的,这可能是因为异步孵化减少了幼虫共同出现的时间。我们发现优先效应的证据有限,这表明4天异步孵化的主要效应是减少了种内竞争,可能是通过减少时间上的重叠。这些结果表明,优先优势只是异步的一种可能效应,在某些情况下,发育异步可能会带来好处。在不同的资源水平下进行不同程度的异步实验,将加深我们对幼虫蚊子之间种内竞争的了解,也可能加深我们对其他具有不同孵化异步性的淡水类群的了解。
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来源期刊
Ecological Entomology
Ecological Entomology 生物-昆虫学
CiteScore
4.90
自引率
4.50%
发文量
94
审稿时长
3 months
期刊介绍: Ecological Entomology publishes top-quality original research on the ecology of insects and related invertebrate taxa. Our aim is to publish papers that will be of considerable interest to the wide community of ecologists who are motivated by ecological or evolutionary theory. The suitability of a manuscript will usually be assessed within 5 days. We publish full-length Original Articles as well as Reviews, Short Communications, Methods and Natural History papers. In Original Articles, we greatly prefer papers that test specific hypotheses and which have a high degree of novelty. All categories aim for innovative contributions that advance the subject of ecological entomology.
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