Trophic behavior of two perlidae species (Insecta, Plecoptera) in a river in southern Spain

Tiziano Bo, Stefano Fenoglio, Manuel Jesús López-Rodríguez, José Manuel Tierno De Figueroa

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

Two Perlidae species, Dinocras cephalotes and Perla bipunctata, were studied in a river in Spain with the objectives of: a) describing their diets; b) detecting differences between size classes; c) analyzing niche breadth; and d) assessing the degree of niche overlap between both species and size classes. Dinocras cephalotes and Perla bipunctata nymphs fed mainly on Baetidae and immature Chironomidae. We did not detect significant differences in the quantity of ingested detritus, algae, and leaf pieces. Niche breadth was very low, although both species presented a high niche overlap. P. bipunctata seems to select some prey items throughout its nymphal development, whereas D. cephalotes augments its diet with other prey items as it grows.

Lingua originaleInglese
pagine (da-a)167-174
Numero di pagine8
RivistaInternational Review of Hydrobiology
Volume93
Numero di pubblicazione2
DOI
Stato di pubblicazionePubblicato - mag 2008
Pubblicato esternamente

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