Graveyards on the Move: The Spatio-Temporal Distribution of Dead Ophiocordyceps-Infected Ants
2009

Graveyards of Dead Ants Infected by a Fungus

Sample size: 2243 publication Evidence: high

Author Information

Author(s): Pontoppidan Maj-Britt, Himaman Winanda, Hywel-Jones Nigel L., Boomsma Jacobus J., Hughes David P.

Primary Institution: University of Copenhagen

Hypothesis

Do graveyards of dead Ophiocordyceps-infected ants occur and are their densities correlated with environmental variables?

Conclusion

The study found that graveyards of dead Ophiocordyceps-infected ants are patchily distributed and their densities are influenced by environmental factors.

Supporting Evidence

  • 2243 dead ants were counted in the study area.
  • High density aggregations of dead ants were found, termed graveyards.
  • Graveyards were found to be patchily distributed in the landscape.

Takeaway

The study shows that when ants get infected by a fungus, they often die in specific spots called graveyards, and these spots can be affected by things like temperature and humidity.

Methodology

The researchers mapped the occurrence of dead ants in a 1,360 m2 area of primary rainforest and analyzed correlations with environmental variables.

Limitations

The study was limited to a specific geographic area and may not be generalizable to other regions.

Statistical Information

P-Value

p<0.01

Statistical Significance

p<0.01

Digital Object Identifier (DOI)

10.1371/journal.pone.0004835

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