Age‐advertisement and the evolution of the peacock's train

  title={Age‐advertisement and the evolution of the peacock's train},
  author={John T. Manning},
  journal={Journal of Evolutionary Biology},
  • J. Manning
  • Published 1 September 1989
  • Biology
  • Journal of Evolutionary Biology
The males of many polygynous species of bird have bright plumage, elaborate crests, pectoral bibs or elongated tail feathers. Outstanding among these species is the blue peacock (Pauo cristatus) with its long covert feathers, most of which end in vividly coloured ocelli. Such structures are probably costly, so how did they evolve? There are four possible answers which invoke female preference for male orna- ments. Firstly, if there are some choosy females in the population then the sons of a… Expand
Peahens prefer peacocks with elaborate trains
Observations of one lek, consisting of 10 males, showed that there was considerable variance in mating success and analysis of female behaviour provided good evidence that this non-random mating is a result of a female preference, supporting Darwin's hypothesis that the peacock's train has evolved, at least in part, as a result. Expand
Peahens do not prefer peacocks with more elaborate trains
It is concluded that peahens in this population are likely to exercise active choice based on cues other than the peacock's train, which is not the universal target of female choice. Expand
Female choice, parasite load and male ornamentation in wild turkeys
Some aspects of male ornamentation in wild turkeys were not explained by inter-sexual selection, and snood length may also be an indicator of male energy reserves, consistent with good genes models of female choice. Expand
Fashion and age in pheasants: age differences in mate choice
  • M. Grahn, T. von Schantz
  • Geography
  • Proceedings of the Royal Society of London. Series B: Biological Sciences
  • 1994
Commonly, younger males have less exaggerated secondary sexual characters than older males. In recent models of the evolution of ornamental traits through intersexual selection, it is often assumedExpand
Variation in the train morphology of peacocks (Pavo cristatus)
Relationships indicate that train elaboration may be condition-dependent, and females that prefer males with larger trains may therefore gain good condition males, which may reflect overall genetic quality. Expand
Sexual Traits as Quality Indicators in Lekking Male Great Bustards
Whiskers may have evolved as an intrasexual indicator of weight, which in the absence of other weapons in this species is decisive in male–male combats, during both rival assessment and mate choice. Expand
Experimental and natural changes in the peacock's (Pavo cristatus) train can affect mating success
An experimental test of the importance of the peacock's train in determining male mating success supports the hypothesis that the peacocks' train has evolved, at least in part, as a result of female choice. Expand
Mate choice in the brown thornbill (Acanthiza pusilla): are settlement decisions, divorce and extrapair mating complementary strategies?
Examination of settlement patterns, divorce and breeding dispersal in a sedentary Australian passerine, the brown thornbill, in relation to two traits known to influence extrapair paternity finds that females obtain a direct benefit from preferring older males as social mates because breeding success improves with male age in brown thornbills. Expand
Peahens prefer peacocks displaying more eyespots, but rarely
It is shown that the maximum number of eyespots in the train is consistent among adult peacocks in feral populations at about 165-170 eyespots, and that most of the observed variation in eyespot number appears to be due to feather breakage or loss. Expand
Ornamentation, age, and survival of female striped plateau lizards, Sceloporus virgatus
  • S. Weiss
  • Biology, Medicine
  • The Science of Nature
  • 2016
Individual survival was unrelated to peak ornament expression and to other phenotypic variables measured, providing no support for the ornament as a viability indicator and suggesting that individual survival prospects are affected by stochastic and environmental factors. Expand


Sexual selection and the mating system of Argusianus argus (Aves: Phasianidae)
Choice between males with or without display sites, on gross plumage and display differences, provides an alternative explanation for the evolution of the males' plumage. Expand
Choosy females and correlates of male age
It is argued that (a) male age may be an indicator of fitness with older males having a higher average fitness than young males, (b) the size and complexity of many male ornaments and weapons are positively correlated with age, and (c) Mutations increasing size or complexity of the age-dependent ornament increases. Expand
Comparative evidence supports the Hamilton and Zuk hypothesis on parasites and sexual selection
Positive relationships between male brightness and parasite prevalence which remain when the effects of taxonomic, behavioural and ecological variables are removed are demonstrated. Expand
Variability in attractiveness of male field crickets (Orthoptera: Cryllidae) to females
  • M. Zuk
  • Biology
  • Animal Behaviour
  • 1987
Because males were kept from contacting each other in the experiments examining correlates of attractiveness, females appeared to be actually choosing older males, rather than indirectly relying on the results of male-male competition. Expand
Sexual dichromatism and parasitism in british and irish freshwater fish
There was a significant positive correlation between a fish family's sexual dichromatism and the number of parasite genera reported from it and this support Hamilton & Zuk's bright, parasiteresistant male and choosy female hypothesis. Expand
Ecological Studies of the Plumes of the Peacock (Pavo cristatus)
The amount of variation in primary feather pigmentation, in the iris color, and in the eye-ring color suggests the problem is more complicated than simple hybridization. Expand
Heritable true fitness and bright birds: a role for parasites?
Combination of seven surveys of blood parasites in North American passerines reveals weak, highly significant association over species between incidence of chronic blood infections (five genera ofExpand
The Descent of Man, and Selection in Relation to Sex
I.IF Mr. Darwin had closed his rich series of contributions to Science by the publication of the “Origin of Species,“he would have made an epoch in Natural History like that which Socrates made inExpand
Mate selection-a selection for a handicap.
  • A. Zahavi
  • Psychology, Medicine
  • Journal of theoretical biology
  • 1975
It is suggested that characters which develop through mate preference confer handicaps on the selected individuals in their survival. These handicaps are of use to the selecting sex since they testExpand
The Genetical Theory of Natural Selection
PROBABLY most geneticists to-day are some-what sceptical as to the value of the mathematical treatment of their problems. With the deepest respect, and even awe, for that association of complexExpand