Journal
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
Volume 289, Issue 1986, Pages -Publisher
ROYAL SOC
DOI: 10.1098/rspb.2022.1602
Keywords
blue tit; density; great tit; matching habitat choice; social environment; social phenotype
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There is growing evidence that individuals actively assess the match between their phenotype and their environment when making habitat choice decisions. However, little is known about how the social environment may interact with social phenotype in determining habitat choice. This study used wild great and blue tits to investigate how birds integrate their social phenotype and social environment when choosing where and how to feed. The results showed that both social environment and social phenotype predicted feeder usage, and feeding behavior varied depending on social phenotype.
There is growing evidence that individuals actively assess the match between their phenotype and their environment when making habitat choice decisions (so-called matching habitat choice). However, to our knowledge, no studies have considered how the social environment may interact with social phenotype in determining habitat choice, despite habitat choice being an inherently social process and growing evidence for individual variation in sociability. We conducted an experiment using wild great and blue tits to understand how birds integrate their social phenotype and social environment when choosing where and how to feed. We used programmable feeders to (i) record social interactions and estimate social phenotype, and (ii) experimentally manipulate the local density experienced by birds of differing social phenotype. By tracking feeder usage, we estimated how social environment and social phenotype predicted feeder choice and feeding behaviour. Both social environment and social phenotype predicted feeder usage, but a bird's decision to remain in a particular social environment did not depend on their social phenotype. By contrast, for feeding behaviour, responses to the social environment depended on social phenotype. Our results provide rare evidence of matching habitat choice and shed light on the dependence of habitat choice on between-individual differences in social phenotype.
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