The evolution of courtship displays in Galliformes

Guan, Xiaohong; Rao, Xiaodong; Song, Gang; Wang, Daiping

doi:10.1016/j.avrs.2022.100008

Cited by 4 publications

(3 citation statements)

References 33 publications

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“…These same selective pathways may also explain the relationship between domestication and reproductive compatibility. In natural settings, Galliformes exhibit a variety of mating strategies, including lekking, monogamy, and polygyny ( Guan et al 2022 ). However, under domestication, humans have typically controlled mate choice.…”

Section: Discussionmentioning

confidence: 99%

Domestication is associated with increased interspecific hybrid compatibility in landfowl (order: Galliformes)

Alfieri,

Hingoranee,

Athrey

et al. 2023

Journal of Heredity

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Some species are able to hybridize despite being exceptionally diverged. The causes of this variation in accumulation of reproductive isolation remain poorly understood, and domestication as an impetus or hindrance to reproductive isolation remains to be characterized. In this study, we investigated the role of divergence time, domestication, and mismatches in morphology, habitat, and clutch size among hybridizing species on reproductive isolation in the bird order Galliformes. We compiled and analyzed hybridization occurrences from literature and recorded measures of postzygotic reproductive isolation. We used a text-mining approach leveraging a historical aviculture magazine to quantify the degree of domestication across species. We obtained divergence time, morphology, habitat, and clutch size data from open sources. We found 123 species pairs (involving 77 species) with known offspring fertility (sterile, only males fertile, or both sexes fertile). We found that divergence time and clutch size were significant predictors of reproductive isolation (McFadden's Pseudo-R 2 = 0.59), but not habitat or morphological mismatch. Perhaps most interesting, we found a significant relationship between domestication and reproductive compatibility after correcting for phylogeny, removing extreme values, and addressing potential biases (F1,74 = 5.43, R 2 = 0.06, p-value = 0.02). We speculate that the genetic architecture and disruption in selective reproductive regimes associated with domestication may impact reproductive isolation, causing domesticated species to be more reproductively labile.

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Section: Discussionmentioning

confidence: 99%

Domestication is associated with increased interspecific hybrid compatibility in landfowl (order: Galliformes)

Alfieri,

Hingoranee,

Athrey

et al. 2023

Journal of Heredity

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“…Males of the lekking species such as grouses, paradises and manakins are under extraordinary sexual selection. They have the most extravagant appearances and courtship displays but contribute nothing but genes to the offspring, leaving females to provide all forms of parental care alone 64 , 65 . But in sex-role reversed species such as jacanas, phalaropes and coucals, where sexual selection on females is stronger than in males, it is the males that are responsible for all forms of parental care duties 66 .…”

Section: Discussionmentioning

confidence: 99%

Sex differences in avian parental care patterns vary across the breeding cycle

Wang,

Zhang,

Yang

et al. 2023

Nat Commun

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Parental care in birds consists of elaborate forms across stages, including nest building, incubation, and offspring provision. Despite their evolutionary importance, knowledge gaps exist in the extent to which parents contribute disproportionately to these forms and factors that are associated with variations in care patterns between sexes. Here, we analyzed 1533 bird species and discovered remarkable variability in care patterns. We show that parental care should not be viewed as a unitary trait but rather as a set of integrated features that exhibit considerable temporal and sex-specific variation. Our analyses also reveal moderate consistency in care patterns between breeding stages, pointing towards shared intrinsic factors driving sex-specific care. Notably, we found that species experiencing strong sexual selection on males or species facing paternity uncertainty display a tendency towards female-biased care. This work advances our understanding of the temporal variations in sex-specific contributions to avian parental care and their potential evolutionary drivers.

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“…Males of the lekking species such as grouses, paradises and manakins are under extraordinary sexual selection. They have the most extravagant appearances and courtship displays but contribute nothing but genes to the offspring, leaving females to provide all forms of parental care alone 58,59 . But in sex role reversed species such as jacanas, phalaropes and coucals, where sexual selection on females is stronger than in males, it is the males that are responsible for all forms of parental care duties 60 .…”

Section: Moderate Sex Role Consistency Over Parental Carementioning

confidence: 99%

Who takes care of the kids at when? Sex differences in avian parental care

Wang

2021

Preprint

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Parental care in birds usually consists of many elaborate forms, including nest building, incubation, provisioning the offspring and protecting them. Given the various life history differences between sexes, parents may have different opportunity costs of providing care in a specific form. But we still do not know whether males and females generally differ in their involvement in different care forms across stages of a breeding cycle, such as nest building, incubation and chick provisioning. Here, we performed a survey of parental care regarding which sex provides care in 882 species of passerine birds and found significant differences in the frequency distributions of sex-role patterns (i.e. female-only care, biparental care, and male-only care) across three distinct forms of parental care. This result showed clearly that parental care should not be treated as a unitary trait, but a composite of integrated features with diverse functions. Using a set of linear mixed-effect models we tested the effects of sexual selection, certainty of paternity, predation risk, and offspring's life history traits in driving the variation in sex roles. In general, we found species with female-only care tended to be under strong sexual selection on males, and uncertainty of paternity could reduce male care.

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The evolution of courtship displays in Galliformes

Cited by 4 publications

References 33 publications

Domestication is associated with increased interspecific hybrid compatibility in landfowl (order: Galliformes)

Domestication is associated with increased interspecific hybrid compatibility in landfowl (order: Galliformes)

Sex differences in avian parental care patterns vary across the breeding cycle

Who takes care of the kids at when? Sex differences in avian parental care

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