Mother Knows Best: Dominant Females Determine Offspring Dispersal in Red Foxes
Author Information
Author(s): Helen M. Whiteside, Deborah A. Dawson, Carl D. Soulsbury, Stephen Harris
Primary Institution: School of Biological Sciences, University of Bristol
Hypothesis
Does relatedness to dominant females influence offspring dispersal in red foxes?
Conclusion
The study found that relatedness to resident females significantly affects juvenile dispersal in red foxes, with male offspring related to dominant females dispersing more often.
Supporting Evidence
- Male offspring with dominant mothers dispersed significantly more often than those with subordinate mothers.
- Dispersing females were significantly more likely to have subordinate mothers compared to philopatric females.
- Relatedness to dominant males did not affect dispersal in offspring of either sex.
Takeaway
In red fox families, the mom's status matters a lot; if a male cub's mom is dominant, he is more likely to leave home, while female cubs with dominant moms tend to stay.
Methodology
The study used microsatellite analysis and long-term data from an urban fox population to compare dispersal strategies based on parental social status.
Potential Biases
There may be biases in parentage assignment due to the low frequency of subordinate fathers and the potential for misidentifying dispersal status.
Limitations
The study's findings may not be generalizable to all red fox populations due to the specific urban setting and potential biases in sampling.
Participant Demographics
The study involved 410 red foxes (212 males and 198 females) from an urban population in Bristol, UK.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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