When aggressiveness could be too risky: linking personality traits and predator response in superb fairy-wrens

PeerJ, Год журнала: 2022, Номер 10, С. e14011 - e14011

Опубликована: Сен. 28, 2022

Personality syndromes in animals may have adaptive benefits for survival. For example, while engaging predator deterrence, reactive individuals tend to prioritise their own survival, proactive engage riskier behaviours. Studies linking animal personality measured captivity with individual fitness or behaviours the wild are sparse, which is a gap knowledge this study aims address. We used playback experiments superb fairy-wrens ( Malurus cyaneus ), common Australian songbird cooperative breeding system, assess whether three traits during short-term correlated behavioural responses perceived nest and adult predator, grey currawong Strepera versicolor ). standard measures of birds: struggle human handling (boldness), exploration novel environment test, aggressiveness mirror presentation. Superb showed significantly stronger response than control (willie wagtail, Rhipidura leucophrys ) playback, suggesting that they recognised as threat without any accompanying visual stimulus. Birds attacked image presentation those spent moderate amount time close responded more strongly (by approaching speaker faster closer, spending near speaker, being likely alarm call) compared low very short long durations mirror. Neither boldness nor test predicted response. Our results align growing number studies across species showing importance personalities factors

Язык: Английский

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Best of both worlds? Helpers in a cooperative fairy-wren assist most to breeding pairs that comprise a potential mate and a relative

Royal Society Open Science, Год журнала: 2023, Номер 10(11)

Опубликована: Ноя. 1, 2023

In cooperative breeders, individuals forego independent reproduction and help others raise offspring. Helping is proposed to be driven by indirect benefits from raising relatives, and/or direct additional recruits or helping itself. We propose that consideration of social context also important, in particular the characteristics breeding pair: may serve lighten workload of—or maintain bonds with—breeders (e.g. kin, potential mates) who turn can offer helpers prolonged nepotism, future mating, production relatives). Here, we test this hypothesis, while controlling for offspring, purple-crowned fairy-wrens ( Malurus coronatus ) exhibiting variation group composition, thus, breeder value. show helper provisioning rates nest were explained breeders assisted, rather than The presence at least one related was a prerequisite help, but provisioned most if assisting relative mate. Neglecting take composition into account would have led misinterpretation our results. A comprehensive understanding evolution hence requires nuanced context.

Язык: Английский

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Inclusive Fitness May Explain Some but Not All Benefits Derived from Helping Behavior in a Cooperatively Breeding Bird

The American Naturalist, Год журнала: 2023, Номер 203(3), С. 393 - 410

Опубликована: Ноя. 10, 2023

In cooperative breeding systems, inclusive fitness theory predicts that nonbreeding helpers more closely related to the breeders should be willing provide costly alloparental care and thus have impact on breeder fitness. red-cockaded woodpecker (Dryobates borealis), most are breeders' earlier offspring, but do vary within groups in both relatedness (some even being unrelated) sex, it can difficult parse their separate impacts Moreover, support for has been positive associations between behavior rather than actual consequences. We used functional linear models evaluate per capita effects of different eight components measured up 41 years at three sites. theory, pair made greater contributions six components. However, male equal increasing prefledging survival regardless relatedness. These findings suggest benefits other direct may underlie helping behaviors woodpecker. Our results also demonstrate application an underused statistical approach disentangle a complex ecological phenomenon.

Язык: Английский

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Genetic relatedness shapes social dynamics in a threatened finch: implications for population assessment

Animal Behaviour, Год журнала: 2024, Номер 219, С. 123035 - 123035

Опубликована: Дек. 13, 2024

Язык: Английский

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Plasticity in social behaviour varies with reproductive status in an avian cooperative breeder

Proceedings of the Royal Society B Biological Sciences, Год журнала: 2022, Номер 289(1974)

Опубликована: Май 4, 2022

Cooperatively breeding vertebrates are common in unpredictable environments where the costs and benefits of providing offspring care fluctuate temporally. To balance these fitness outcomes, individuals cooperatively species often exhibit behavioural plasticity according to environmental conditions. Although individual variation cooperative behaviours is well-studied, less known about social behaviour. Here, we examine benefits, repeatability nest guarding behaviour superb starlings ( Lamprotornis superbus ). After demonstrating that cumulative performed at a by all breeders helpers combined significant predictor reproductive success, model breeder helper reaction norms test hypothesis invest more favourable seasons with high rainfall. Variation across differed for different status: showed plastic response rainfall, whereas did not. Similarly, found show consistency their while Thus, potential gain direct greater individual-level

Язык: Английский

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Animal cooperation: Context-specific helping benefits

Current Biology, Год журнала: 2021, Номер 31(18), С. R1082 - R1084

Опубликована: Сен. 1, 2021

Язык: Английский

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Mobbing behaviour in non-breeding flocks of a passerine bird in northern Patagonia

Behaviour, Год журнала: 2022, Номер 159(8-9), С. 759 - 780

Опубликована: Янв. 24, 2022

Abstract Animal cooperation occurs in both genetically related and unrelated groups of individuals, involving costs benefits that have not been fully elucidated. For example, risky behaviour such as mobbing a predator would be selected if participants are genetic relatives because they share fraction their gene pool (i.e., kin selection or indirect benefits). However, the absence relatedness, can achieved by direct reciprocity mutualism, among others. In this study we analyzed cooperative winter flocks an endemic passerine austral temperate forests, Thorn-tailed rayadito ( Aphrastura spinicauda ). We first tested whether probability latency to response differed depending on acoustic stimulus perceived flock conspecific calls vs. calls), intensity was number individuals species participating. found were more likely approach when signal call than it predator’s call, increased with participants. Secondly, explored level kinship within group potentially played role development behaviour. The proportion close-relatives these low, within- among-flock degree did differ. This suggests might expression flocks.

Язык: Английский

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Kin-structured cooperatively breeding groups due to limited dispersal in the obligate shell-brooding cichlid Neolamprologus meeli

Behavioral Ecology and Sociobiology, Год журнала: 2022, Номер 76(7)

Опубликована: Июнь 28, 2022

Язык: Английский

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The frequency and position of stable associations offset their transitivity in a diversity of vertebrate social networks

Ethology, Год журнала: 2022, Номер 129(1), С. 1 - 11

Опубликована: Окт. 27, 2022

Abstract When the estimated strength of social associations corresponds to proportion time spent together, strong links, those that take up most recorded individuals, are compulsorily transitive and tend occur in clusters. However, I describe three ways which frequency position apparently offset expected transitivity links published association networks from 26 species vertebrates. Instead occurring groups three, were mostly isolated. they did clusters, clusters small. The phenomena increased intensity as overall number all strengths network increased. Since stable motifs beneficial cooperation, these results can help explain why cooperative behaviors not more frequent than group‐living Inversely, may be rare small because benefits cooperation do overcome costs associated with motifs. summary statistics developed for this study captured information conveyed by other network‐level metrics; thus quantify socio‐spatial structure populations potentially tease apart environmental, species‐specific, individual drivers.

Язык: Английский

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Peer Review #3 of "When aggressiveness could be too risky: linking personality traits and predator response in superb fairy-wrens (v0.1)"

Опубликована: Сен. 28, 2022

Personality syndromes in animals may have adaptive benefits for survival.For example, while engaging predator deterrence, reactive individuals tend to prioritise their own survival, proactive engage riskier behaviours.Studies linking animal personality measured captivity with individual fitness or behaviours the wild are sparse, which is a gap knowledge this study aims address.We used playback experiments superb fairy-wrens (Malurus cyaneus), common Australian songbird cooperative breeding system, assess whether three traits during short-term correlated behavioural responses perceived nest and adult predator, grey currawong (Strepera versicolor).We standard measures of birds: struggle human handling (boldness), exploration novel environment test, aggressiveness mirror presentation.Superb showed significantly stronger response than control (willie wagtail, Rhipidura leucophyrys) playback, suggesting that they recognised as threat without any accompanying visual stimulus.Birds attacked image presentation those spent moderate amount time close responded more strongly (by approaching speaker faster closer, spending near speaker, being likely alarm call) compared low very short long durations mirror.Neither boldness nor test predicted response.Our results align growing number studies across species showing importance personalities factors survival.

Язык: Английский

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