Biomantling and bioturbation by colonies of the Florida harvester ant, Pogonomyrmex badius

PloS One
Walter R Tschinkel

Abstract

In much of the world, soil-nesting ants are among the leading agents of biomantling and bioturbation, depositing excavated soil on the surface or in underground chambers. Colonies of the Florida harvester ant, Pogonomyrmex badius excavate a new nest once a year on average, depositing 0.1 to 12 L (3 L average) of soil on the surface. Repeated surveys of a population of about 400 colonies yielded the frequency of moves (approximately once per year), the distance moved (mean 4 m), and the direction moved (random). The area of the soil disc correlated well with the volume and maximum depth of the nest, as determined by excavation and mapping of chambers. The population-wide frequency distribution of disc areas thus yielded the frequency distribution of nest volumes and maximum depths. For each surveyed colony, the volume of soil excavated from six specified depth ranges and deposited on the surface was estimated. These parameters were used in a simulation to estimate the amount of soil mantled over time by the observed population of P. badius colonies. Spread evenly, P. badius mantling would create a soil layer averaging 0.43 cm thick in a millennium, with 10-15% of the soil deriving from depths greater than 1 m. Biomantling by P. ...Continue Reading

References

Aug 7, 1999·Science·B J Cole, D C Wiernasz
Apr 30, 2005·Journal of Insect Science·Walter R Tschinkel
Nov 22, 2005·Journal of Insect Science·Walter R Tschinkel
Aug 12, 2006·Trends in Ecology & Evolution·Filip J R MeysmanCarlo H R Heip
Dec 10, 2008·Proceedings of the National Academy of Sciences of the United States of America·Joshua R King, Walter R Tschinkel
Sep 14, 2011·Annual Review of Entomology·Terrence P McGlynn
Mar 1, 2013·Journal of Insect Science·Walter R TschinkelChristina Kwapich

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Citations

Jul 9, 2016·PloS One·Walter R Tschinkel, Jon N Seal
Nov 29, 2016·PloS One·Walter R Tschinkel, Christina L Kwapich

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