Primate sympatry shapes the evolution of their brain architecture

Robira, Benjamin; Perez‐Lamarque, Benoît

doi:10.24072/pcjournal.259

Cited by 3 publications

(2 citation statements)

References 121 publications

(137 reference statements)

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“…from black kites, Milvus migrans, or common swifts, Apus apus, [107,108]). Interactions with heterospecifics can indeed drastically affect animals' daily life [109], up to shaping the cognitive machinery underpinning their foraging decisions [110]. How heterospecific cues are used when foraging remains clearly overlooked.…”

Section: Discussionmentioning

confidence: 99%

The use of social information in vulture flight decisions

Sassi,

Nouzières,

Scacco

et al. 2024

Proc. R. Soc. B.

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Animals rely on a balance of personal and social information to decide when and where to move next in order to access a desired resource. The benefits from cueing on conspecifics to reduce uncertainty about resource availability can be rapidly overcome by the risks of within-group competition, often exacerbated toward low-ranked individuals. Being obligate soarers, relying on thermal updraughts to search for carcasses around which competition can be fierce, vultures represent ideal models to investigate the balance between personal and social information during foraging movements. Linking dominance hierarchy, social affinities and meteorological conditions to movement decisions of eight captive vultures, Gyps spp ., released for free flights in natural soaring conditions, we found that they relied on social information (i.e. other vultures using/having used the thermals) to find the next thermal updraught, especially in unfavourable flight conditions. Low-ranked individuals were more likely to disregard social cues when deciding where to go next, possibly to minimize the competitive risk of social aggregation. These results exemplify the architecture of decision-making during flight in social birds. It suggests that the environmental context, the context of risk and the social system as a whole calibrate the balance between personal and social information use.

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Section: Discussionmentioning

confidence: 99%

The use of social information in vulture flight decisions

Sassi,

Nouzières,

Scacco

et al. 2024

Proc. R. Soc. B.

Self Cite

View full text Add to dashboard Cite

show abstract

“…from black kites, Milvus migrans, or common swifts, Apus apus, [99,100]). Interactions with heterospecifics can indeed drastically affect animals' daily life [101], up to shaping the cognitive machinery underpinning their foraging decisions [102]. How heterospecific cues are used when foraging remains clearly overlooked.…”

Section: Discussionmentioning

confidence: 99%

The use of social information in vulture flight decisions

Yohan,

Basile,

Martina

et al. 2023

Preprint

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Animals rely on a balance of personal and social information to decide when and where to move next in order to access a desired resource, such as food. The benefits from cueing on conspecifics to reduce uncertainty about resources availability can be rapidly overcome by the risks of within-group competition, often exacerbated toward low-ranked individuals. Being obligate soarers, relying on thermal updrafts to search for carcasses around which competition can be fierce, vultures represent ideal models to investigate the balance between personal and social information during foraging movements. Linking dominance hierarchy, social affinities and meteorological conditions to movement decisions of eight captive vultures, Gyps spp., released for free flights in natural-like soaring conditions, we found that they relied on social information (i.e. other vultures using/having used the thermals) to find the next thermal updraft, especially in unfavourable flight conditions. Low-ranked individuals were more likely to disregard social cues when deciding where to go next, possibly to minimise the competitive risk of social aggregation. These results exemplify the architecture of decision-making during flight in social birds. It suggests that the environmental context, the context of risk and the social system as a whole calibrate the balance between personal and social information use.

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The role of cognition and movement of seed-dispersing animals in shaping plant distributions

Robira

2023

Preprint

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In the wild, an evolutionary play takes place in an unchanging setting, or so current hypotheses on the evolution of spatiotemporal cognition of animals implicitly assume. However, if plant-eating vagile animals are likely to have their spatiotemporal cognition shaped by the distribution of plant resources, their movement may shape the way resources are distributed as well, for example by dispersing seeds. Using an agent-based model simulating the foraging behaviour of a seed disperser endowed with spatiotemporal knowledge of resource distribution, I investigated whether resource spatiotemporal patterns could be influenced by the level of cognition involved in foraging. This level of cognition represented how well resource location and phenology were predicted by the agent. I showed that seed dispersers could shape the long-term distribution of resources by materialising the routes repeatedly used by the forager with the newly recruited trees. This stemmed from the conjunction of two forces: competition for space between trees and a seed-dispersing forager moving from tree to tree based on spatiotemporal memory. In turn, resource landscape modifications affected the benefits of spatiotemporal memory, hence the selection gradient that applies to cognition. This could create eco-evolutionary feedback loops between animal spatiotemporal cognition and the distribution patterns of plant resources. Altogether, the results emphasise that foraging cognition is a cause and a consequence of resource heterogeneity.

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Primate sympatry shapes the evolution of their brain architecture

Cited by 3 publications

References 121 publications

The use of social information in vulture flight decisions

The use of social information in vulture flight decisions

The use of social information in vulture flight decisions

The role of cognition and movement of seed-dispersing animals in shaping plant distributions

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