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Hydrobiologia

, Volume 71, Issue 1–2, pp 99–105 | Cite as

Coexistence of perlid stoneflies (plecoptera): Predictions from multivariate morphometrics

  • Andrew L. Sheldon
Article

Abstract

Ecological compatibility of the nymphs of 5 stonefly genera (Plecoptera : Perlidae) was predicted from a principal components ordination of metric data on 22 trophic and locomotor structures. Nymphs of these taxa follow different allometry relationships and are more similar at some sizes than others. Coexistence probabilities (0, .5, 1.0) were estimated from proximity in morphological space, assumed independent, and multiplied to obtain assemblage probabilities of multispecies sets. Combinations with Pc = 1 occur in western U.S.A. but only 1 of 20 sets with Pc ⩽ 0.5 is known to exist.

Keywords

allometry coexistence morphometry Perlidae principal components analysis zoogeography 

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Copyright information

© Dr W. Junk b.v. Publishers 1980

Authors and Affiliations

  • Andrew L. Sheldon
    • 1
  1. 1.Department of ZoologyUniversity of MontanaMissoulaU.S.A.

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