Alarm calls as costly signals of antipredator vigilance: the watchful babbler game
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منابع مشابه
Alarm calls as costly signals of antipredator vigilance: the watchful babbler game
Alarm-calling behaviour is common in many species that suffer from predation. While kin selection or reciprocal altruism are typically invoked to explain such behaviours, several authors have conjectured that some alarm calls may instead be costly signals sent by prey to inform approaching predators that they have been detected. We develop a general game-theoretical model, the watchful babbler ...
متن کاملAlarm Calls
Animals commonly vocalize when threatened by a predator. These signals, usually termed alarm calls (from old Italian all arme ‘to arms’ on the approach of an enemy), have continued to bewilder and fascinate for a number of reasons, the first of which is mainly practical. In animal research, it is often difficult to break down the continuous behavioral stream into discrete and meaningful units, ...
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Many species of animals have to perform two contradictory tasks: feeding, and avoiding becoming food for others. A large number of theoretical and empirical studies have investigated the trade-off between feeding and antipredator vigilance, especially in birds. An important factor which has been neglected in these studies is that of the area occupied by the flock. If individuals feed close toge...
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متن کاملA communication-based spatial model of antipredator vigilance.
Many animals spend their lives performing two often mutually exclusive tasks: feeding and watching out for predators (anti-predator vigilance). There have been many theoretical and empirical studies investigating this trade-off, especially for birds. An important characteristic of a flock of real birds is the area occupied by the flock. Individuals feeding close together experience increased co...
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ژورنال
عنوان ژورنال: Animal Behaviour
سال: 2001
ISSN: 0003-3472
DOI: 10.1006/anbe.2000.1636