EFFECT OF QUEEN NUMBER ON THE PRODUCTION OF SEXUALS IN NATURAL-POPULATIONS OF THE FIRE ANT, SOLENOPSIS-INVICTA Academic Article uri icon

abstract

  • ABSTRACT. To determine whether the production of sexuals in the fire ant, Solenopsis invicta Buren, is related to queen number in the field, the numbers of sexuals in monogyne (M) and polygyne (P) colonies of this species were compared. Large colonies (n=25 M and 25 P) were collected at random during spring, summer and fall when sexuals are actively produced, and the numbers of sexuals present were counted. The numbers of alates plus sexual pupae and larvae in M colonies far exceeded those in P colonies in each season. Significant differences between M and P colonies were also found when the numbers of alates and sexual immatures (pupae + larvae) were compared separately in each season. In addition, M colonies contained significantly more female sexuals (alates + pupae) than did P colonies in the summer and fall, and significantly more males in all three seasons. The negative relationship between queen number and number of sexuals provides evidence that queen control over the production of sexuals, previously established in laboratory experiments, also occurs under natural conditions. Copyright 1987, Wiley Blackwell. All rights reserved

published proceedings

  • PHYSIOLOGICAL ENTOMOLOGY

author list (cited authors)

  • VARGO, E. L., & FLETCHER, D.

citation count

  • 50

complete list of authors

  • VARGO, EL||FLETCHER, DJC

publication date

  • January 1987

publisher