Female extra‐pair behavior is not associated with reduced paternal care in Thorn‐tailed Rayadito

Poblete, Yanina; Botero‐Delgadillo, Esteban; Espíndola‐Hernández, Pamela; Südel, Gabriela; Vásquez, Rodrigo A.

doi:10.1002/ece3.7232

Cited by 5 publications

(3 citation statements)

References 27 publications

(53 reference statements)

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“…The average clutch size is five eggs (range: 1–10) in this population (Poblete et al . 2021).…”

Section: Methodsmentioning

confidence: 99%

“…Timing of breeding was defined for each breeding pair as the difference between the first‐egg date and the date when the first egg in the population was laid (see Verhulst & Tinbergen 1991, Abbey‐Lee & Dingemanse 2019, Poblete et al . 2021). Breeding adults were captured inside the nestboxes using a triggered trap when nestlings were 12–14 days old (Quirici et al .…”

Section: Methodsmentioning

confidence: 99%

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Risk‐taking behaviour relates to timing of breeding in a sub‐Antarctic rainforest bird

Poblete

Botero‐Delgadillo

Espíndola‐Hernández

et al. 2021

Ibis

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Within‐population variation in timing of breeding may be linked to a trade‐off between the risks and benefits of breeding earlier. This trade‐off may be mediated by individual risk‐taking behaviour, but this needs to be assessed in detail in wild populations. Here, we recorded timing of breeding and risk‐taking behaviour during three consecutive breeding seasons in a resident population of Thorn‐tailed Rayadito Aphrastura spinicauda located in Navarino Island (55°S), southern Chile. Navarino is a high‐latitude, highly seasonal continental island in southern Chile where early breeding may be risky for rayaditos, given the presence of low temperatures, storms and relatively low food abundance during early spring. We used novel environment tests to assess exploratory behaviour, which in turn was used as a proxy of risk‐taking behaviour. In addition, we evaluated the potential consequences of timing of breeding and risk‐taking behaviour on three measures of reproductive success: clutch size, number of fledglings produced and body condition of the offspring. We found that risk‐prone individuals started breeding earlier than risk‐averse individuals but we did not find evidence for an effect of timing of breeding on any of the variables of seasonal breeding success. However, we observed that fast‐exploring females tended to lay smaller clutches. Measurements reflecting lifetime reproductive success may better reflect an effect of timing of breeding and risk‐taking behaviour, but this needs to be studied. Our results support the idea that risk‐taking behaviour is linked to early breeding in high‐latitude environments. We suggest that, despite the risks that low temperatures and snowstorms pose to breeding rayaditos during early spring, it is possible that early breeders increase the probability of occupying better nesting cavities and they may adjust the timing of breeding to match brood provisioning with peak resource abundance.

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“…The average clutch size is five eggs (range: 1–10) in this population (Poblete et al . 2021).…”

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Risk‐taking behaviour relates to timing of breeding in a sub‐Antarctic rainforest bird

Poblete

Botero‐Delgadillo

Espíndola‐Hernández

et al. 2021

Ibis

Self Cite

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“…Several studies have been performed linking paternity and paternal care, showing support for both a reduction in care [31,77,[140][141][142], and no effect on care [136,[143][144][145][146]. In the reed bunting Emberiza schoeniclus, Suter et al [141] showed that the males reduced provisioning rate in response to decreased paternity.…”

Section: ) Reduced Parental Carementioning

confidence: 99%

The costs of extra-pair mating

Søraker,

Dunning

2023

Preprint

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Extra-pair behaviours, where individuals copulate outside of an established pair bond, resulting in extra-pair paternity (EPP) of offspring, have long intrigued behavioural ecologists. Of particular interest is why females of otherwise socially monogamous species engage in extra-pair behaviours. Although researchers recognise that the drivers of variation in EPP, both within-species and between-species, also depend on the negative consequences (costs) of the behaviour to the individual, empirical studies mostly focus on benefits rather than costs. This is partly because benefits are often measured in currency close to fitness, whereas costs often have more indirect and complex pathways to fitness. Both the prevalence and magnitude of a cost are experienced in the context an individual’s environment and may affect fitness, either directly (by affecting reproduction or survival) or indirectly (through the fitness of offspring). Here, we review our current understanding of costs associated with EPP and extra-pair copulations (EPC), e.g. both the costs of producing extra-pair offspring and the behaviour associated with EPP. We conclude that the costs of EPP and EPC are likely a key factor shaping this behaviour. More research, particularly empirical and experimental studies in taxa other than birds, is needed to understand the intricate cost-benefit equation underlying EPP.

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Neither paternity loss nor perceived threat of cuckoldry affects male nestling provisioning in grass wrens

Arrieta

Campagna

Mahler

et al. 2022

Behav Ecol Sociobiol

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Female extra‐pair behavior is not associated with reduced paternal care in Thorn‐tailed Rayadito

Cited by 5 publications

References 27 publications

Risk‐taking behaviour relates to timing of breeding in a sub‐Antarctic rainforest bird

Risk‐taking behaviour relates to timing of breeding in a sub‐Antarctic rainforest bird

The costs of extra-pair mating

Neither paternity loss nor perceived threat of cuckoldry affects male nestling provisioning in grass wrens

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