Competition among larval dragonflies: a field enclosure experiment.

D. M. Johnson, P. H. Crowley, R. E. Bohanan, C. N. Watson, T. H. Martin

Research output: Contribution to journalArticlepeer-review

62 Scopus citations


Tetragoneuria cynosura and Celithemis elisa dominate the larval dragonfly assemblage of Bays Mountain Lake, Tennessee, where they coexist in the extensive submersed macrophyte and allochthonous detritus habitats despite relatively high overlap in both seasonal occurrence and diet. Survival rate for both species was dependent on intraspecific density in September; that for C. elisa was also affected by the presence of T. cynosura. These effects are attributed to interference (encounter) competition rather than to exploitation (consumption) competition. The mechanism of competition seems to be predation by larger larvae on smaller larvae. -from Authors

Original languageEnglish
Pages (from-to)119-128
Number of pages10
Issue number1
StatePublished - 1985

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics


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