Reliable signalling need not be a handicap

@article{Getty1998ReliableSN,
  title={Reliable signalling need not be a handicap},
  author={Thomas Getty},
  journal={Animal Behaviour},
  year={1998},
  volume={56},
  pages={253-255}
}
  • T. Getty
  • Published 1 July 1998
  • Environmental Science
  • Animal Behaviour
The handicap principle is an important pillar in our understanding of animal communication (Wiley 1994; Ryan 1997; Zahavi & Zahavi 1997). The handicap concept comes from a sports analogy: ‘The investment that animals make in signals is similar to the ‘‘handicaps’’ imposed on the stronger contestants in a game or sporting event’ (Zahavi & Zahavi 1997, page XIV). The concept suggests that ‘conspicuous waste’ is essential to reliable signalling. ’The Handicap Principle is a very simple idea: waste… 

The Handicap Principle: how an erroneous hypothesis became a scientific principle

It is shown that Grafen's models do not support the handicap hypothesis, although they do support Zahavi's second hypothesis, which proposes that males adjust their investment into the expression of their sexual signals according to their condition and ability to bear the costs (and risks to their survival).

When Honest Signals Must Be Costly

In an influential paper, Grafen (1990) provided a mathematical demonstration of the validity of Zahavi's handicap principle: cost stabilizes the system when the cost of lying is greater than any benefit associated with doing so.

General solution to biological signalling games: costly signalling and beyond

Explaining signal reliability poses a central problem in animal communication. According to Zahavi’s Handicap Principle (HP), signals are honest only when they are costly at the evolutionary

The validity of the handicap principle in discrete action-response games

Abstract The validity of the handicap principle has spawned much debate in spite of the existence of a formal treatment. Simple models constructed to further investigate the issue were able both to

The rise and fall of handicap principle: a commentary on the “Modelling and the fall and rise of the handicap principle”

The honesty of animal communication is in the spot lights in the last 30 years. During most of this time the field was dominated by one explanation: Zahavi’s handicap principle (Zahavi, J Theor Biol

Sexually selected signals are not similar to sports handicaps.

  • T. Getty
  • Psychology
    Trends in ecology & evolution
  • 2006

The balance model of honest sexual signaling

It is predicted that accelerating returns on viability are necessary to undermine honesty, and this prediction depends crucially on the assumption that mating success and viability contribute multiplicatively (rather than additively) to an individual's fitness.

Social selection maintains honesty of a dynamic visual signal in cichlid fish

It is suggested that by affecting the evolution of pigmentation patterns in sexually monochromatic cichlid species, social selection can have potential impacts on diversification dynamics.
...

References

SHOWING 1-10 OF 10 REFERENCES

Handicap signalling: when fecundity and viability do not add up

  • T. Getty
  • Environmental Science
    Animal Behaviour
  • 1998
Critical tests of the handicap hypothesis should establish that signallers of different quality are on a rising fitness ridge because of different cost-benefit trade-offs, and whether receivers are maximizing their fitness requires additional experiments.

Evolutionarily stable communication between kin:a general model

  • H. Reeve
  • Environmental Science
    Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1997
Signalling systems involving relatives are shown to be evolutionarily stable, despite a potential pay–off for false signalling, if the Zahavian assumption of differential signal costs holds and there are diminishing reproductive returns to the signaller as the receiver's assessed value of its attribute increases.

Search, Discrimination, and Selection: Mate Choice by Pied Flycatchers

  • T. Getty
  • Biology
    The American Naturalist
  • 1995
Signal detection theory is used to clarify relationships between, and to some extent unify, conceptual frameworks that have been developed in the contexts kin recognition, diet selection, mate choice, and selection on quantitative traits.

Mate selection-a selection for a handicap.

  • A. Zahavi
  • Psychology, Biology
    Journal of theoretical biology
  • 1975

Sexual selection when the female directly benefits

Using a quantitative genetic model, it is shown how female preferences for male traits that indicate condition can evolve, even if the male traits themselves have deleterious effects on both the male and the female's fecundity.

Handicap signal selection is not selection for inefficiency

  • J. John
  • Economics
    Animal Behaviour
  • 1997
No Abstract

A reply to John

No abstract

Biological signals as handicaps.

  • A. Grafen
  • Psychology
    Journal of theoretical biology
  • 1990