Factors associated with breeding site fidelity in the sex-role reversed red phalarope

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ID: 322874
2026
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Abstract
Abstract When birds breed in multiple years, they can either return to their former breeding site or disperse to a new area. Consistent with theoretical predictions, the degree of breeding site fidelity often differs between the sexes in relation to the mating system of a species. However, most research has focused on species with conventional sex roles. Studying socially polyandrous species, in which typical sex roles are reversed, may provide insights into the drivers of breeding site fidelity in each sex. We color-banded 169 male and 184 female red phalaropes Phalaropus fulicarius, a species in which females compete for access to males (female access polyandry), and examined factors that predicted their return to the study area. Breeding site fidelity was relatively low, but substantially higher in males (20.7%) than in females (4.3%). For both sexes, the probability of returning was associated with local breeding performance: males that attended a nest in the study area were more likely to return than males without a nest, and females that locally bred with two males were more likely to return than those that only produced a clutch for a single male. Our findings are consistent with the prediction that site fidelity should be male-biased in species with a female-access polyandrous mating system. Our study also highlights that breeding site fidelity is associated with local breeding success, even in a species that shows a reversal of typical sex-roles, where individuals do not defend a territory, and breed in an environment that is highly unpredictable between years.
Reference Key
openalex_W7171543986 Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Peter Santema, Johannes Krietsch, Bart Kempenaers
Journal behavioral ecology
Year 2026
DOI
10.1093/beheco/arag090
URL
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