Honest begging: signals of need, quality, and/or hunger?
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چکیده
منابع مشابه
On the meaning of hunger and behavioral control in the evolution of honest begging
Mock et al. (2011) in the following referred to as ‘‘MDS’’, point out some weaknesses and inconsistencies in begging research, and they convincingly place signaling of need (Godfray, 1991) and signaling of quality (Grafen, 1990) at eye level as 2 competing hypotheses for the evolution of offspring begging signals. Hopefully, the 2 hypotheses will be placed to balanced tests in the future. They ...
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Begging by dependent avian offspring is known to correlate with hunger level, and parents use this as a signal of brood demand to adjust their chick feeding behavior. While there is information on how each chick adjusts its begging to its own condition, little is known of how chicks adjust to the state of their nest mates. In two experiments we manipulated the competitive environment of individ...
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Geoff A. Parker Population and Evolutionary Biology Research Group, Nicholson Building, School of Biological Sciences, University of Liverpool, Liverpool, UK L69 3GS. Ever since Trivers [1] showed that parents and their offspring could be in conflict over the amount of parental investment, the evolution and maintenance of begging behaviour has been an area of increasing interest to evolutionary...
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Deceptive signals are a challenge to explain because on average, signals should be reliable. When being deceived is costly to the receiver, a coevolutionary struggle between senders and receivers can ensue. Recent work by Macías Garcia and Ramirez raises the intriguing possibility that through such a coevolutionary process, cheats can become honest.
متن کاملHonest Signals - How They Shape Our World
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ژورنال
عنوان ژورنال: Behavioral Ecology
سال: 2011
ISSN: 1045-2249,1465-7279
DOI: 10.1093/beheco/arr080