Social Information Use in Shrikes
Author Information
Author(s): Hromada Martin, Antczak Marcin, Valone Thomas J., Tryjanowski Piotr
Primary Institution: Department of Zoology, Faculty of Science, University of South Bohemia, České Budějovice, Czech Republic
Hypothesis
Do red-backed shrikes use the presence of great grey shrikes or their larders to assess habitat quality?
Conclusion
Red-backed shrikes use larders of great grey shrikes as a cue to rapidly assess habitat quality.
Supporting Evidence
- Red-backed shrikes settled earlier on plots with larders compared to those without.
- Males did not settle sooner on plots with great grey shrikes compared to those without.
- Females paired with males on plots with larders 6 days earlier than on plots without.
Takeaway
Red-backed shrikes look for food caches made by great grey shrikes to find good places to live, rather than just following the shrikes themselves.
Methodology
The study involved manipulating the presence of larders in experimental plots to observe settling decisions of red-backed shrikes.
Limitations
The study did not measure the performance of birds on treatment plots.
Participant Demographics
The study focused on two species of shrikes: red-backed shrikes and great grey shrikes.
Statistical Information
P-Value
p=0.02
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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