Plumage brightness predicts male mating success in the lekking golden-collared manakin, Manacus vitellinus

Stein, Adam C.; Uy, J. Albert C.

doi:10.1093/beheco/ari095

Cited by 79 publications

(78 citation statements)

References 60 publications

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“…As has been described previously for manakins (Stein and Uy, 2006), some males displayed vigorously whereas others showed comparatively low levels of display (control, mean = 0.18, range = 0.05-0.39/min; T treated, mean=0.09 range 0-0.27/min). We predicted that exogenous T would increase display rate of the relatively inactive males.…”

Section: Field Implantation Experimentssupporting

confidence: 79%

Testosterone and its effects on courtship in golden-collared manakins (Manacus vitellinus): Seasonal, sex, and age differences

Day

Fusani

Hernandez

et al. 2007

Hormones and Behavior

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Section: Field Implantation Experimentssupporting

confidence: 79%

Testosterone and its effects on courtship in golden-collared manakins (Manacus vitellinus): Seasonal, sex, and age differences

Day

Fusani

Hernandez

et al. 2007

Hormones and Behavior

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“…This is not a surprising result as the extreme specialization of manakin courtship appears to result from strong, ongoing sexual selection [12,17]. Thus, the intensity of displaying activity joins other courtship traits that have been shown to be associated with female choice in GC manakins, such as the colour of the plumage [15] and the contrast of the bird with the arena's background [16]. Courtship choreography may highlight morphological traits and thus enhance male conspicuousness [32].…”

Section: Discussionmentioning

confidence: 99%

“…In addition, we recorded the courtship and mating success of each male. Courtship success is the number of times a female joins a male in his display arena, a measure that in Manacus is highly correlated to mating success, the number of times a male copulates [15]. We recorded a total of 895 observation units from 31 males of four different leks.…”

Section: Methodsmentioning

confidence: 99%

Female choice for male motor skills

et al. 2011

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Sexual selection was proposed by Darwin to explain the evolution of male sexual traits such as ornaments and elaborate courtship displays. Empirical and theoretical studies have traditionally focused on ornaments; the reasons for the evolution of elaborate, acrobatic courtship displays remain unclear. We addressed the hypothesis that females choose males on the basis of subtle differences in display performance, indicating motor skills that facilitate survival. Male golden-collared manakins (Manacus vitellinus) perform elaborate, acrobatic courtship displays. We used high-speed cameras to record the displays of wild males and analysed them in relation to male reproductive success. Females preferred males that performed specific display moves at greater speed, with differences of tens of milliseconds strongly impacting female preference. In additional males, we recorded telemetrically the heart rate during courtship using miniature transmitters and found that courtship is associated with profoundly elevated heart rates, revealing a large metabolic investment. Our study provides evidence that females choose their mates on the basis of subtle differences in motor performance during courtship. We propose that elaborate, acrobatic courtship dances evolve because they reflect motor skills and cardiovascular function of males.

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“…Based on behavioral observations of banded males in an allopatric population of the golden-collared manakin, as well as observation of leks in the white-and golden-collared hybrid zone, adult males do not move between leks. Furthermore, once courts are established and females are visiting leks for courtships and matings, there are little to no changes in court ownership, or the addition of new males (Stein and Uy 2006;A. C. Stein and J.…”

Section: Study Taxamentioning

confidence: 99%

Unidirectional Introgression of a Sexually Selected Trait Across an Avian Hybrid Zone: A Role for Female Choice?

Stein

2006

Evol

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109

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Abstract.-Hybridization can be an evolutionary creative force by forming new polyploid species, creating novel genetic variation or acting as conduits of potentially advantageous traits between hybridizing forms. Evidence for the latter is often difficult to find because alleles under positive selection can spread rapidly across a hybrid zone and sweep to fixation. In Western Panama, an avian hybrid zone between two species of manakins in the genus Manacus exists where the unidirectional introgression of bright, yellow plumage into a white population provides evidence for the importance of hybrid zones as conduits of advantageous traits. Several lines of indirect evidence suggest that sexual selection favoring yellow plumage drives this asymmetrical spread, but more direct evidence is lacking. Along the edge of the hybrid zone, both yellow-and white-collared manakins are found in the same mating arenas or leks and compete for the same females ("mixed leks"), providing us with a unique opportunity to understand the dynamics of yellow plumage introgression. We studied these mixed leks to determine whether yellow males have a mating advantage over white males and, if so, whether the mating advantage is driven by male-male interactions, female choice, or both. We found that yellow males mated more than white males, suggesting that sexual selection favoring yellow males can, indeed, explain the spread of yellow plumage. However, we found that this advantage occurred only in mixed leks where the frequency of yellow males is greater than white males. This suggests that the advantage of yellow males may depend on the presence of other yellow males, which may slow the rate of introgression in leks where yellow frequency is low such as in areas where yellow males are beginning to colonize the white population. This, along with the geographic barrier posed by major rivers in the hybrid zone, may initially limit or slow the spread of yellow plumage. Finally, we found that yellow and white males were similar in aggression and body size, and held comparable positions within leks. Because these traits or factors are often important in or dictated by aggressive malemale interactions, these comparisons indicate that male-male interaction is not the primary mechanism for the spread of yellow plumage. However, white and yellow males received similar numbers of courtship visits from females but differed in the number of matings, suggesting that females actively rejected white in favor of yellow males. Our results indicate that sexual selection by female choice has driven the unidirectional introgression of yellow plumage into the white population, providing a mechanism for how hybrid zones act as conduits of novel and advantageous traits.

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Plumage brightness predicts male mating success in the lekking golden-collared manakin, Manacus vitellinus

Cited by 79 publications

References 60 publications

Testosterone and its effects on courtship in golden-collared manakins (Manacus vitellinus): Seasonal, sex, and age differences

Testosterone and its effects on courtship in golden-collared manakins (Manacus vitellinus): Seasonal, sex, and age differences

Female choice for male motor skills

Unidirectional Introgression of a Sexually Selected Trait Across an Avian Hybrid Zone: A Role for Female Choice?

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