期刊
BEHAVIOUR
卷 158, 期 7, 页码 603-623出版社
BRILL
DOI: 10.1163/1568539X-bja10083
关键词
Aphididae; defence; dropping behaviour; predator-prey interaction; risk assessment
资金
- Perry Foundation
- University of St Andrews
- Scottish Government's Rural and Environment Science
- Scottish Government's Analytical Services Division
Dropping from the host plant is a common antipredator defence observed in herbivorous insects. Pea aphids prefer dropping in response to ladybird adults, while potato aphids mainly use walking away or backing up as their defence mechanisms against predators. Contact with a predator influences dropping behavior in both species, with factors such as predator proximity and predator type playing important roles.
For herbivorous insects, dropping from the host plant is a commonly-observed antipredator defence. The use of dropping compared to other behaviours and its timing in relation to contact with a predator was explored in both pea aphids (Acyrthosiphon pisum) and potato aphids (Macrosiphum euphorbiae). Pea aphids dropped more frequently in response to ladybird adults (Adalia bipunctata) than lacewing larvae (Chrysoperla carnea). Potato aphids mainly walked away or backed-up in response to both predator types; but they dropped more frequently relative to other non-walking defences when faced with ladybird adults. Contact with a predator was an important influencer of dropping for both species, and most drops occurred from adjacent to the predator. Dropping appears to be a defence adaptively deployed only when the risk of imminent predation is high; factors that increase dropping likelihood include presence of faster-foraging predators such as adult ladybirds, predator proximity, and contact between aphid and predator.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据