Understanding Animal Group Sizes
Author Information
Author(s): Michael Griesser, Qi Ma, Simone Webber, Katharine Bowgen, David J. T. Sumpter
Primary Institution: Uppsala University
Hypothesis
What factors determine the distribution of group sizes in House sparrows?
Conclusion
House sparrows regulate their group sizes based on environmental factors like temperature and food availability.
Supporting Evidence
- Sparrow group sizes varied from 1 to 46, with an average of 7.33.
- The logarithmic distribution provided the best fit for the observed group sizes.
- Group sizes were larger on colder days compared to warmer days.
Takeaway
This study looked at how House sparrows form groups and found that their group sizes change depending on the weather and how much food is around.
Methodology
The study used observations of House sparrows in various environmental conditions to analyze group size distributions.
Potential Biases
Potential observer bias in counting group sizes.
Limitations
The study may not account for all environmental factors affecting group sizes.
Participant Demographics
House sparrows (Passer domesticus) observed in a rural valley in southern France.
Statistical Information
P-Value
<0.0001
Statistical Significance
p<0.0001
Digital Object Identifier (DOI)
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