Display Settings:

Format

Send to:

Choose Destination
See comment in PubMed Commons below
Zoology (Jena). 2002;105(4):355-65.

Diversity of Anisoptera (Odonata): infering speciation processes from patterns of morphological diversity.

Author information

  • Department of Entomology, Zoological Research Institute and Museum Alexander Koenig, Bonn, Germany. b.misof.zfmk@uni-bonn.de

Abstract

With roughly 2500 described species Anisoptera are among the species-poor suborders within insects. However, morphological and ecological variability are truly impressive. Anisoptera are classified into about 15 families of variable species richness. In this analysis phylogenetic research is integrated with comparative approaches to investigate possible explanations of differential speciation rates within this suborder. A short review of phylogenetic work based on morphological characters is compared to published molecular phylogenies. Sistergroup comparisons are used to elucidate whether a) sexual selection, b) duration of life cycles, or c) differentiation in body size, have had a detectable effect on speciation rate. In all three analyses effects of distributional range and latitudinal distribution were controlled. These analyses suggest sexual selection promotes speciation and an increase in body size is positively correlated with speciation rate. The evolutionary significance of these results is discussed and experimental approaches that should advance our understanding of anisopteran diversity are suggested.

PMID:
16351884
[PubMed]
PubMed Commons home

PubMed Commons

0 comments
How to join PubMed Commons

    Supplemental Content

    Full text links

    Icon for Elsevier Science
    Loading ...
    Write to the Help Desk