Defences of a Neotropical harvestman against different levels of threat by the recluse spider
作者: Rodrigo Hirata WillemartKleber Del-ClaroJúlio M.G. Segovia
刊名: Behaviour, 2015, Vol.152 (6), pp.757-773
来源数据库: Brill
DOI: 10.1163/1568539X-00003252
关键词: Arachnidachemoreceptiondefensive behaviourLaniatoresdeimatic
原始语种摘要: The threat sensitive hypothesis predicts that animals modulate the defensive behaviour with the level of threat. Therefore, responses to predator cues may differ from responses to the actual predator in close range. Also, in high threat situations, prey would be expected to use their most dangerous defences. The recluse spider Loxosceles gaucho (Araneae, Sicariidae) is known to prey upon well defended harvestmen such as the laniatorid Mischonyx cuspidatus (Opiliones, Gonyleptidae), which has been reported to use tanathosis, chemical defences, pinching with sharp apophyses on legs, chelicerae and pedipalps. Because of harvestmen’s dependence on chemical stimuli, we tested if M. cuspidatus would change its locomotory behaviour in the presence of chemicals of the recluse spider (low threat...
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关键词翻译
关键词翻译
  • threat 威胁
  • spider 电枢辐臂
  • defensive 防御的
  • situation 立场
  • apophyses 岩枝
  • predator 捕食者
  • against 反对
  • pierced 冲孔的
  • chemical 化学的
  • pinching 箍缩