Male competition in Cardiocondyla ants

  title={Male competition in Cardiocondyla ants},
  author={J{\"u}rgen Heinze and Bert Hoelldobler and Katsusuke Yamauchi},
  journal={Behavioral Ecology and Sociobiology},
The two types of males in the ant genus Cardiocondyla differ remarkably in morphology and behavior. Ergatoid males are wingless fighters whose spermatogenesis continues throughout their entire adult lives and which therefore have an “unlimited” sperm supply. They attempt to kill all eclosing ergatoid rivals and thus to increase their share in copulations with the virgin queens reared in their nests. Winged males, on the other hand, are docile and emigrate from the nests a few days after… CONTINUE READING