6533b7d6fe1ef96bd1266409

RESEARCH PRODUCT

Conditions requisite for stability of polymorphic balance in Philaenus spumarius (L.) (Homoptera)

Liisa HalkkaOlli HalkkaMikko Raatikainen

subject

0106 biological sciencesBalance (metaphysics)biologyEcologyHomopteraPhilaenus spumariusPlant ScienceGeneral Medicinebiology.organism_classification010603 evolutionary biology01 natural sciences010601 ecologyInsect ScienceGeneticsAnimal Science and Zoology

description

Frequencies of colour morphs were recorded in 1969–74 in 5 island populations of Philaenus spumarius. The polymorphic balance was accurately maintained in three of them, but less constantly in the other two. One of the latter populations experienced a great fluctuation in size, and this was accompanied by a profound alteration in morph frequencies.

https://doi.org/10.1007/bf00122518