期刊文献+
共找到2篇文章
< 1 >
每页显示 20 50 100
仿拟行为的认知结构及认知过程 被引量:36
1
作者 徐国珍 《语言研究》 CSSCI 北大核心 2006年第1期23-26,共4页
仿拟作为一种修辞行为,也是一种认知活动。仿拟的认知结构主要由范畴与原型、图式与完形、联想与类推、语境与经验等要素构成。
关键词 仿拟行为 认知结构要素 认知过程
下载PDF
Does defensive posture increase mimetic fidelity of caterpillars with eyespots to their putative snake models? 被引量:2
2
作者 Thomas John HOSSIE Thomas N. SHERRATT 《Current Zoology》 SCIE CAS CSCD 2014年第1期76-89,共14页
Organisms often evolve behaviours that increase or reinforce the protection from predators afforded by their morpho- logical defences. For example, mimetic animals may adopt postures or locomotory behaviours that emul... Organisms often evolve behaviours that increase or reinforce the protection from predators afforded by their morpho- logical defences. For example, mimetic animals may adopt postures or locomotory behaviours that emulate a characteristic fea- ture of their model to increase predator deception. Caterpillars with eyespots are thought to mimic snakes, and when threatened many of these caterpillars adopt a posture that appears to enhance this resemblance. Herein we evaluate the quantitative strength of evidence of behavioural mimicry in the caterpillars of 14 species by comparing how closely a series of putative snake-mimicking caterpillars resemble snakes while at rest and when threatened. Specifically, we quantified the head morphology and eye position of a range of snake species, as well as the shape of the apparent head (i.e. anterior body segments) and position of eyespots in caterpillars resting or in their defensive posture. This allowed us to objectively examine evidence for an increased resemblance to either snakes generally, or to Viperidae snakes specifically, upon adopting the defensive posture. Widening the anterior body segments during the defensive posture typically made caterpillars appear more viper-like as opposed to more snake-like in general. Enhanced resemblance to vipers upon mounting the defensive posture was apparent only from the dorsal view. Laterally, caterpillars more closely resembled snakes in the resting posture and shifting to the defensive posture instead reduced mimetic fidelity, Overall we found evidence for behavioural mimicry in all 14 species examined. We highlight that objectively quantifying mimetic fidelity can help identify key features involved in deception . 展开更多
关键词 Behaviour Geometr!c morphometrics Protective colouration MIMICRY Morphology Vipers
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部