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Researches on Population Ecology

, Volume 28, Issue 1, pp 151–162 | Cite as

Population ecology of the gall-forming aphid,Aploneura lentisci (Pass.) in Israel

  • David Wool
  • Ora Manheim
Article

Summary

  1. (1)

    Aploneura lentisci (Passerini) (Homoptera, Aphididae) forms kidney-shaped galls on the leaflets of its primary host,Pistacia lentiscus (Anacardiaceae). Observations on its population dynamics and ecology werecarried out in 1980–1985.

     
  2. (2)

    The galls are formed annually on newly-growing shoots of the same year. Each gall is founded by a single nymph and contains its parthenogenetic offspring. The infestation period (late March-early April) is short relative to the period of appearance of new shoots. The distribution of galls on the shoots is non-random (“clumped”). Early shoots emerging near pruning cuts, when the rest of the buds are still dormant, are often very heavily infested.

     
  3. (3)

    Clone size within galls increases from 1 in April to several hundred in September (at least 2 parthenogenetic generations). Alates of the last generation leave the galls gradually as they form. By the following March, previous-year galls contain no live aphids.

     
  4. (4)

    Population density of galls varied greatly among years. Possible causes of this variation are discussed.

     

Keywords

Gall Botanical Garden Pemphigus Primary Host Aphid Infestation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Society of Population Ecology 1986

Authors and Affiliations

  • David Wool
    • 1
  • Ora Manheim
    • 1
  1. 1.Department of Zoology, George S. Wise Faculty of Life SciencesTel Aviv UniversityIsrael

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