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Behavioral responses of the Formosan subterranean termite
(Isoptera: Rhinotermitidae) to semiochemicals of seven ant species
Cornelius, ML | Grace, JK
Environmental Entomology [ENVIRON. ENTOMOL.]. Vol. 23, no. 6, pp.
1524-1528. 1994.
Bioassays were performed to determine the behavioral responses of
Coptotermes formosanus Shiraki soldiers to ants or ant extracts.
C. formosanus responded differently to semiochemicals of different
ant species. A significantly greater proportion of termite
soldiers responded aggressively to Pheidole megacephala (F.) than
to other ant species. Termite soldiers were significantly less
likely to respond aggressively to Monomorium floricola (Jerdon),
Tetramorium simillimum (F. Smith), and Ochetellus glaber (Mayr)
than to other ant species. Termites avoided contact with O. glaber
in 85.3% of trials, but only avoided contact with other ant
species in 18% or less of trials. Termite soldiers were
significantly more likely to respond to freshly killed ants than
to solvent-treated ants of the same species. Termites also
responded similarly to freshly killed ants and dead termites
treated with ant extracts, indicating that termite responses were
mediated, at least in part, by chemical cues. The ability of C.
formosanus to distinguish among different ant species on the basis
of semiochemicals could be an adaptive response that allows them
to recognize particularly threatening enemies.
 Descriptors: Article Subject Terms aggression | recognition | semiochemicals | Article Taxonomic Terms Coptotermes formosanus | Formicidae | Hymenoptera | Isoptera | Rhinotermitidae
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