Catalyzing Transitions to Sociality: Ecology Builds on Parental Care

Socias‐Martínez, Lluis; Kappeler, Peter M.

doi:10.3389/fevo.2019.00160

Cited by 15 publications

(9 citation statements)

References 152 publications

(236 reference statements)

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“…Dyads of individuals that belonged to the same simulated kin cluster were considered kin and dyads that belonged to different kin clusters were considered non-kin. More generally, this kinship structure is likely common to other mix-related societies as the grouping of unrelated individuals is a possible way that groups arise (Socias-Martínez and Kappeler 2019), which might result in groups featuring independent family lines. We simulated the kin biases observed in Cayo Santiago by parameterising the two agent-based models with the empirical mean probability that kin dyads and non-kin dyads had a social relationship and with the empirical mean strength and SD of those relationships (see Results).…”

Section: Methodsmentioning

confidence: 99%

The impact of kinship composition on social structure

Pereira,

Pavez-Fox,

Hart

et al. 2024

Preprint

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The relatedness between group members is a potential driver of variation in social structure. Relatedness predicts biases in partner choice and formation of strong relationships among group members. As such, groups that differ in their percentage of non-kin dyads, i.e., in their kinship composition, should therefore differ in the structure of their social networks. Yet the relationship between kinship composition and social structure remains unclear. Here, we used long-term social and pedigree data from a population of rhesus macaques to investigate the relationship between kinship composition and the connectivity, cohesion, potential for transmission and social differentiation of the social networks of adult female macaques. We found no evidence that the social structure of groups composed of greater proportion of unrelated females differ from that of groups with a lower proportion of non-kin. To investigate this unexpected finding, we built agent-based models parameterised with the empirical data to further explore (1) the expected relationship between kinship composition and social structure and (2) why we did not find such a relationship in the empirical data. Agent-based models showed that kinship composition can influence social structure in populations similar to the one studied, but that this effect may only be detectable with a sample size even larger than ours (19 group-years) and with greater variance in kinship composition (proportion of non-kin varied between 0.830-0.922 in the empirical data). The relationship between kinship composition and social structure might be more apparent when comparing data from species that differ strongly in their social organisation, translating into marked differences in kinship composition. This further emphasises the importance of reporting existing and future kinship composition data to deepen our understanding of the evolution of sociality and highlights the potential of agent-based models to better understand empirical results.

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Section: Methodsmentioning

confidence: 99%

The impact of kinship composition on social structure

Pereira,

Pavez-Fox,

Hart

et al. 2024

Preprint

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“…Why are overlapping generations important for the evolution of eusocial groups? While convincing arguments have been made for why we can ignore this trait in our terminological categories [25], parent-offspring grouping plays a fundamental role in the evolution of social behaviours via kin selection [51], and is incorporated into many theoretical frameworks of social evolution [52][53][54][55][56]. However, family living is not intrinsically important.…”

Section: Family Living Facilitates Social Evolution But So Does Polyembryonymentioning

confidence: 99%

The weird eusociality of polyembryonic parasites

Whyte

2021

Biol. Lett.

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Some parasitoid wasps possess soldier castes during their parasitic larval stage, but are often neglected from our evolutionary theories explaining caste systems in animal societies. This is primarily due to the polyembryonic origin of their societies. However, recent discoveries of polyembryonic trematodes (i.e. flatworms) possessing soldier castes require us to reconsider this reasoning. I argue we can benefit from including these polyembryonic parasites in eusocial discussions, for polyembryony and parasitism are taxonomically vast and influence the evolution of social behaviours and caste systems in various circumstances. Despite their polyembryony, their social evolution can be explained by theories of eusociality designed for parent–offspring groups, which are the subjects of most social evolution research. Including polyembryonic parasites in these theories follows the trend of major evolutionary transitions theory expanding social evolution research into all levels of biological organization. In addition, these continued discoveries of caste systems in parasites suggest social evolution may be more relevant to parasitology than currently acknowledged.

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“…While traditionally examined through the lens of group size (3–5), there is increasing interest in understanding how these co-evolutionary dynamics play out across multiple indices of social complexity (6–8). Parental care is a major component of a species’ social system (9) and represents a key step in the evolution of complex sociality (10). When care responsibilities are shared between multiple caregivers, ensuring offspring survival requires coordinated behaviors that rely on effective communication.…”

Section: Introductionmentioning

confidence: 99%

Co-option of ancestral signal elements in the evolution of a cooperative parental behavior

Moss

Tumulty

Fischer

2022

Preprint

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The emergence of new social associations is predicted to be an important selective force in the diversification of communication systems. To meet new functional demands, signal repertoires may expand, or existing signals may be co-opted to solicit distinct, context-dependent responses. In anurans, the vocal repertoires of many species have been characterized in detail, including distinct types of calls for advertisement, courtship, and aggression; yet quantitative descriptions are lacking for social contexts such as parental care. Here, we characterized and compared calls of the biparental poison frog, Ranitomeya imitator, across three social contexts: advertisement, courtship, and egg feeding - a unique parenting behavior in which females, coordinated by the calls of their male partners, provision trophic eggs to tadpoles. We found that egg feeding calls shared properties with both advertisement (i.e., longer in duration) and courtship calls (i.e., broader call bandwidths) but were distinct in other properties (i.e., low dominant frequencies and long pulse intervals). Egg feeding calls contained less identity information than advertisement calls but more than courtship calls. Finally, multivariate analysis revealed relatively high classification success for advertisement (82.9%) and courtship calls (73.5%) but misclassified nearly half of egg feeding calls as either advertisement (21.4%) or courtship calls (21.4%). Taken together, egg feeding calls appear intermediate between the two ancestral call types, and likely borrowed and recombined elements of both to solicit a context-dependent parenting response.

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Catalyzing Transitions to Sociality: Ecology Builds on Parental Care

Cited by 15 publications

References 152 publications

The impact of kinship composition on social structure

The impact of kinship composition on social structure

The weird eusociality of polyembryonic parasites

Co-option of ancestral signal elements in the evolution of a cooperative parental behavior

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