Data from: Social foragers adopt a riskier foraging mode in the centre of their groups
| Main Author: | Beauchamp, Guy |
|---|---|
| Format: | info dataset Journal |
| Terbitan: |
, 2014
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/4968344 |
Daftar Isi:
- Foraging in groups provides many benefits that are not necessarily experienced the same way by all individuals. I explore the possibility that foraging mode, the way individuals exploit resources, varies as a function of spatial position in the group, reflecting commonly occurring spatial differences in predation risk. I show that semipalmated sandpipers (Calidris pusilla), a social foraging avian species, tended to adopt a riskier foraging mode in the central, more protected areas of their groups. Central birds effectively used the more peripheral group members as sentinels, allowing them to exploit a wider range of resources within the same group at the same time. This finding provides a novel benefit of living in groups, which may have a broad relevance given that social foraging species often exploit a large array of resources.
- RiskIncludes the prevalence of each foraging mode as a function of several independent variables including spatial position and food availability.risk_bl.xlsx