Within-plant distribution of a galling adelgid (Homoptera: Adelgidae) : the consequences of conflicting survivorship, growth, and reproduction

P. A. Fay, Thomas G Whitham

Research output: Contribution to journalArticle

23 Citations (Scopus)

Abstract

Adelges cooleyi was rarely found in the top-most whorl of shoots in its host plant Engelmann spruce, Picea engelmannii. Survivorship of the few Adelges fundatrices which did colonize the top whorl was at or near zero for the 3 yr in which survivorship was assessed, while survivorship in the bottom whorls was at least 60%. When an Adelges fundatrix did survive in the top whorl, her growth and reproductive output, and the growth of her progeny, the gallicolae, were at least double that of bottom whorl fundatrices. The vigorous growth of top whorl shoots apparently promotes Adelges growth and fecundity, but the earlier growth of these shoots results in low temperature mortality of fundatrices. -from Authors

Original languageEnglish (US)
Pages (from-to)245-254
Number of pages10
JournalEcological Entomology
Volume15
Issue number3
StatePublished - 1990

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Adelges
Adelgidae
survivorship
Homoptera
Picea engelmannii
survival rate
shoots
Gilletteella cooleyi
shoot
reproductive performance
fecundity
host plants
host plant
distribution
temperature
mortality

ASJC Scopus subject areas

  • Insect Science
  • Ecology

Cite this

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