Martini X, Dixon A F G, Hemptinne J-L
Université de Toulouse - ENFA, UMR CNRS 5174 Evolution and Diversité Biologique, Castanet Tolosan Cedex, France.
Bull Entomol Res. 2013 Feb;103(1):14-9. doi: 10.1017/S000748531200034X. Epub 2012 Jul 5.
Larvae of aphidophagous ladybirds leave a cue in their tracks that deters oviposition. The influence of relatedness on this behaviour is for the first time explored in this paper. Two-spot ladybird females (Adalia bipunctata L.) under different conditions (young and naive, young and experienced, and old and naive) were exposed either to (i) clean filter paper, (ii) filter paper contaminated with unrelated larval tracks or (iii) filter paper contaminated with related larval tracks from their offspring. Oviposition time was recorded during nine hours. Oviposition was inhibited by larval tracks, and was more so by related than unrelated ones. Experienced females showed the same behaviour but with lower intensity. With old females, response was not significant with any type of larval tracks. This is the first report of the effect of relatedness on a ladybird's response to larval tracks.
食蚜瓢虫幼虫会在其爬行路径上留下一种信号，这种信号会阻止产卵。本文首次探讨了亲缘关系对这种行为的影响。将处于不同条件下（年轻且无经验、年轻且有经验、年老且无经验）的二斑瓢虫雌性个体置于以下环境中：（i）干净的滤纸，（ii）被无关幼虫爬行路径污染的滤纸，或（iii）被其后代的相关幼虫爬行路径污染的滤纸。记录九个小时内的产卵时间。幼虫爬行路径会抑制产卵，且相关幼虫爬行路径比无关幼虫爬行路径的抑制作用更强。有经验的雌性个体表现出相同的行为，但强度较低。对于年老的雌性个体，任何类型的幼虫爬行路径都未产生显著反应。这是关于亲缘关系对瓢虫对幼虫爬行路径反应影响的首次报道。
