Aposematism and the Handicap Principle
نویسندگان
چکیده
منابع مشابه
The Handicap Principle Is an Artifact
The handicap principle is one of the most influential ideas in evolutionary biology. It asserts that when there is conflict of interest in a signaling interaction signals must be costly in order to be reliable. While in evolutionary biology it is a common practice to distinguish between indexes and fakable signals, we argue this dichotomy is an artifact of existing popular signaling models. Onc...
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Males may use sexual displays to signal their quality to females ; the handicap principle provides a mechanism that could enforce honesty in such cases. Iwasa et al. 1] model the signalling of inherited male quality, and distinguish between three variants of the handicap principle: pure epistasis, conditional, and revealing. They argue that only the second and third will work. An evolutionary s...
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Species spanning the animal kingdom have evolved extravagant and costly ornaments to attract mating partners. Zahavi's handicap principle offers an elegant explanation for this: ornaments signal individual quality, and must be costly to ensure honest signalling, making mate selection more efficient. Here, we incorporate the assumptions of the handicap principle into a mathematical model and sho...
متن کاملAposematism
What is aposematism? The word comes from the Greek apo (away) and sema (sign) and describes a strategy whereby animals warn predators about their unprofitability. It consists of two elements: a primary defence, such as distinctive colours, odours or sounds, that operates before the predator attacks; and a secondary defence, be it chemical, morphological or behavioural that make prey unprofitabl...
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ژورنال
عنوان ژورنال: The American Naturalist
سال: 2012
ISSN: 0003-0147,1537-5323
DOI: 10.1086/667890