The Effect of Conspecific Density on Emergence of Lestes bipupillatus Calvert, 1909 (Odonata: Lestidae)

IF 1.6 Q2 ENTOMOLOGY
Ricardo Cardoso-Leite, G. Vilardi, R. Guillermo‐Ferreira, P. Bispo
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引用次数: 3

Abstract

Conspecific density may influence adult recruitment and consequently population dynamics. Several studies have shown the density dependence of larvae growth rates in Odonata. However, few studies studied how conspecific density influence final instar larvae emergence date decisions. Considering that larvae may choose the date of emergence, the present study investigated if density affects larvae choice. For this, we reared eight final instar larvae in individual aquaria and other 24 larvae in aquaria with three larvae each. This way, we simulated environments with low and high larval densities. We then noted the days that larvae took to emerge and compared it between low and high density groups. The results showed that larvae seem to emerge earlier when in high densities (Mann-Whitney, , ). These results support the hypothesis that damselfly last instar larvae may postpone or hasten emergence in response to the social environment and related constraints.
同种密度对双pupillatus Calvert, 1909羽化的影响(蜱螨目:蜱螨科)
同种密度可能影响成虫的招募,从而影响种群动态。有几项研究表明,大腹蛇幼虫的生长速度与密度有关。然而,很少有研究研究同虫密度对末龄幼虫羽化日期的影响。考虑到幼虫可以选择出蛹的日期,本研究探讨了密度是否影响幼虫的选择。为此,我们在单个水族箱中饲养了8只末龄幼虫,在水族箱中饲养了24只幼虫,每个水族箱饲养了3只幼虫。通过这种方式,我们模拟了低密度和高密度的环境。然后,我们记录了幼虫出现的天数,并将其在低密度组和高密度组之间进行比较。结果表明,密度越大,幼虫出现时间越早(Mann-Whitney,,)。这些结果支持了豆娘末龄幼虫对社会环境和相关约束的反应可能推迟或加速羽化的假设。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
1.80
自引率
0.00%
发文量
8
审稿时长
15 weeks
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