Oecologia

, Volume 98, Issue 2, pp 130–132 | Cite as

Polyphagy and adult body size in geometrid moths

  • J. Lindström
  • L. Kaila
  • P. Niemelä
Original Paper

Abstract

We compared the average body size (wing span) of Finnish geometrid moth species in relation to their degree of polyphagy and quality of food. The first hypothesis, originally constructed for mammals and birds, states that smaller species should more often be specialists than large species, because of the different relationships between body size and home range size, and body size and daily energy requirements. According to the second hypothesis, smaller species should feed more often on herbs than do larger species, because of the different defence mechanisms of herbs and woody plants. The results support both of these hypotheses. Specialist species are smaller than oligophagous or polyphagous species, and small species concentrate on herbs. We conclude that quality and quantity of food resources may explain the pattern.

Key words

Polyphagy Body size Geometridae 

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Copyright information

© Springer Verlag 1994

Authors and Affiliations

  • J. Lindström
    • 1
  • L. Kaila
    • 2
  • P. Niemelä
    • 3
  1. 1.Department of Zoology, Division of EcologyUniversity of HelsinkiFinland
  2. 2.Zoological MuseumUniversity of HelsinkiFinland
  3. 3.Department of Forest EcologyFinnish Forest Research InstituteVantaaFinland

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