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Effects of population density on alienicolae of Aphis fabae Scop.
Author(s) -
SHAW M. J. P.
Publication year - 1970
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1970.tb04578.x
Subject(s) - biology , aphis , population density , population , botany , horticulture , aphid , demography , sociology
SUMMARY A technique for rearing aphids in dense populations is described. Apterae were reared in high (‘C’) and low (‘U’) population densities and the proportions of alatae among their progenies were compared. Proportions of alatae were larger among progenies of ‘C’ apterae, and the proportions also increased as the density of the population in which the progenies were reared increased. Progenies of alatae never became alatae.