Ecology, conservation, and phylogenetic position of the Madagascar Jacana<i>Actophilornis albinucha</i>

Jackson, Josephine D’Urban; Zefania, Sama; Moehy, Sebastien; Bamford, Andrew J.; Bruford, Michael William; Székely, Tamás

doi:10.2989/00306525.2019.1662508

Cited by 8 publications

(4 citation statements)

References 80 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Therefore, we believe that the impact of male-male competition and sperm competition is unlikely to remove the general expectation of greater female than male variance in reproductive success under our strict definition of role-reversed polyandry. Also consistent with this expectation, estimates of the N eZ /N eA ratio based on polymorphism data exceed 1 for the two jacana species where this has been quantified (the African jacana Actophilornis africanus and the Madagascar jacana Actophilornis albinucha) [32].…”

Section: Methods (A) Mating System Characterizationsupporting

confidence: 58%

Role-reversed polyandry is associated with faster fast-Z in shorebirds

Wanders,

Chen,

Feng

et al. 2024

Proc. R. Soc. B.

Self Cite

View full text Add to dashboard Cite

In birds, males are homogametic and carry two copies of the Z chromosome (‘ZZ’), while females are heterogametic and exhibit a ‘ZW’ genotype. The Z chromosome evolves at a faster rate than similarly sized autosomes, a phenomenon termed ‘fast-Z evolution’. This is thought to be caused by two independent processes—greater Z chromosome genetic drift owing to a reduced effective population size, and stronger Z chromosome positive selection owing to the exposure of partially recessive alleles to selection. Here, we investigate the relative contributions of these processes by considering the effect of role-reversed polyandry on fast-Z in shorebirds, a paraphyletic group of wading birds that exhibit unusually diverse mating systems. We find stronger fast-Z effects under role-reversed polyandry, which is consistent with particularly strong selection on polyandrous females driving the fixation of recessive beneficial alleles. This result contrasts with previous research in birds, which has tended to implicate a primary role of genetic drift in driving fast-Z variation. We suggest that this discrepancy can be interpreted in two ways—stronger sexual selection acting on polyandrous females overwhelms an otherwise central role of genetic drift, and/or sexual antagonism is also contributing significantly to fast-Z and is exacerbated in sexually dimorphic species.

show abstract

Section: Methods (A) Mating System Characterizationsupporting

confidence: 58%

Role-reversed polyandry is associated with faster fast-Z in shorebirds

Wanders,

Chen,

Feng

et al. 2024

Proc. R. Soc. B.

Self Cite

View full text Add to dashboard Cite

show abstract

“…This put the characteristics of the mating system of the pheasant-tailed jacana (in term of degree and proportion of polyandry) close to the northern jacana. Which, interestingly is one of the closest jacana species to the pheasant-tailed jacana on the phylogenetic tree (Whittingham et al, 2006;D'Urban Jackson et al, 2019). Pheasant-tailed jacanas were originally classified by Oring (1986) as a classical simultaneous polyandrous species.…”

Section: Polyandrous Matingmentioning

confidence: 99%

“…The polyandrous mating has been confirmed for 6 out of the 8 jacana species. The lesser jacana is monogamous (Tarboton and Fry, 1986;Hustler and Dean, 2002) and the level of information on the Madagascar jacana Actophilornis albinucha is insufficient to confirm its supposed polyandrous mating (D'Urban Jackson et al, 2019). However, within the other 6 polyandrous jacana species, the type of copulation pattern (i.e., simultaneous or sequential with different males) and degree of polyandry (i.e., average number of mates per female) vary a lot across the species (see Table 1 for detailed review).…”

Section: Introductionmentioning

confidence: 99%

Sex Role Reversal and High Frequency of Social Polyandry in the Pheasant-Tailed Jacana (Hydrophasianus chirurgus)

Fresneau

Lee

Lee³

et al. 2021

Front. Ecol. Evol.

Self Cite

View full text Add to dashboard Cite

In a few species, males invest more than females in parental care while the females invest in mating competition and producing multiple broods for several mates. Species in the family Jacanidae are commonly used for studying this type of breeding system (called sex-role reversal), and previous studies found discrepancies and variation between species in the expected characteristics of reversed sex roles. Yet, a better understanding of sex role differences in breeding behavior in such species is crucial for disentangling possible evolutionary mechanisms leading to this peculiar breeding system. Sex-role reversal in the pheasant-tailed jacana Hydrophasianus chirurgus has been documented long time ago. Since the very early observation of this species, however, there was no attempt to provide a comprehensive and quantitative description of their breeding. This study aims to fill these knowledge gaps by investigating the sex role differences in the breeding behavior of pheasant-tailed jacanas, by observing and monitoring a breeding population in Taiwan. We focused on three main characteristics of sex-role reversal: (1) competition between females for access to males, such as agonistic and courtship behaviors, (2) polyandrous mating, and (3) male-only care. As expected, we found that females provide most of the territory defense toward conspecifics. Males also participated in agonistic behaviors, although less frequently than females. Furthermore, contrary to what was expected, we found that males spent more time than females on courtship behavior. Polyandrous females performed mating and laying sequentially with different mates but maintained the pair bonds simultaneously with multiple males. For the first time for the species, we could estimate that the average number of mates per female (i.e., degree of polyandry) was 2.4 and that at least 81.8% of the females in the population were polyandrous. Finally, our observations corroborated that brood care is predominantly provided by males, nevertheless females were also participating to some degree in brood attendance but never in direct care (i.e., brooding). This study highlights that some aspects of polyandrous breeding might deviate from stereotyped view on sex-role reversal, and stress the importance of further within species and comparative studies in order to fully understand the mechanisms leading to sex-role reversal.

show abstract

“…The articles in this special issue are grouped largely into those focused on waterbirds of inland aquatic environments (de Souza et al 2019;Gula et al 2019;D'Urban Jackson et al 2019;Lee et al 2019;Neb et al 2019) and those focused on waterbirds in coastal and marine environments (Brown et al 2019;Dyer et al 2019;Sherley et al 2019;Tree et al 2019;Vanstreels et al 2019). Among the studies concentrating on inland waterbirds is one of the first attempts to quantify the long-suspected hybridisation between invasive Mallard Duck Anas platyrhynchos and native Yellow-billed Duck A. undulata in South Africa (de Souza et al 2019).…”

Section: Editorial Waterbirds: Birds Of a Feather Flock Togethermentioning

confidence: 99%

Waterbirds: Birds of a feather flock together

Reynolds

2019

Ostrich

View full text Add to dashboard Cite

Ecology, conservation, and phylogenetic position of the Madagascar JacanaActophilornis albinucha

Cited by 8 publications

References 80 publications

Role-reversed polyandry is associated with faster fast-Z in shorebirds

Role-reversed polyandry is associated with faster fast-Z in shorebirds

Sex Role Reversal and High Frequency of Social Polyandry in the Pheasant-Tailed Jacana (Hydrophasianus chirurgus)

Waterbirds: Birds of a feather flock together

Contact Info

Product

Resources

About