A chemical substance emitted by an organism and detected by another of a different species which gains advantage from this, e.g. a parasite seeking a host.‘Unlike a pheromone, which involves only one species, kairomones are chemicals emitted by one species - in this case pears - that attract and benefit another, such as codling moths.’
- ‘Thus, natural selection should favor parasitoids that utilize as kairomones only the chemicals that uniquely and reliably identify potential hosts.’
- ‘According to Torr, ‘Tsetse use host kairomones to locate their hosts by a process termed ‘odour-mediated upwind anemotaxis’.’
- ‘‘There are a lot of known kairomones, but most are worthless for commercial applications to monitor insects under field conditions,’ Henrick says.’
- ‘But for some specialist insects, cyanide and cyanogenic compounds can serve as phagostimulants and kairomones.’
1970s from Greek kairos ‘advantage, opportunity’, on the pattern of pheromone.
Are You Learning English? Here Are Our Top English Tips