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Journal of Tropical Ecology (1)

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A thermophile in the shade: light-directed nest relocation in the Costa Rican ant Ectatomma ruidum
Terrence P. McGlynn, Toyin Dunn, Ellen Wayman, Andrea Romero
Journal:

Journal of Tropical Ecology / Volume 26 / Issue 5 / September 2010

Published online by Cambridge University Press:

30 July 2010, pp. 559-562
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In tropical climates, nest movements by mature ant colonies are probably widespread but the phenomenon of nest relocation is poorly described (McGlynn 2007, McGlynn et al. 2004, Smallwood 1982a). For species that nest in soil, the costs and risks associated with excavating and establishing new nests are consequential, and it is assumed that relocation occurs when the costs are offset by a more advantageous nest location (Avargues-Weber & Monnin 2009, Banschbach & Herbers 1999). Nest movements may occur to areas with greater availability of food resources or to a more favourable microclimate. Here we provide the first report of nest relocation in one of the most widespread and well described ant species in the Neotropics, Ectatomma ruidum (Roger), and we perform a manipulative experiment to test whether food availability or light environment influence nest movement.