Nymphal biology of Ephoron virgo (Olivier, 1791) (Ephemeroptera, Polymitarcyidae) in an Apenninic river (NW Italy)

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

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

Life cycle, feeding habits and nymphal density of a population of Ephoron virgo from the Bormida river (Northwestern Italy) were studied. Nymphs were present in the river from the beginning of May until August, with the highest density of nymphs recorded at the end of May–beginning of June. The life cycle was univoltine and the nymphal growth was fast. During the life cycle, an obligatory egg diapause occurs and individuals remain in this stage for up to nine months. Nymphs fed mainly on detritus, although mineral matter constituted a considerable percentage of the gut contents, predominantly in smaller nymphs.
Lingua originaleInglese
pagine (da-a)352-354
Numero di pagine3
RivistaEntomological Science
Volume16
Numero di pubblicazione3
DOI
Stato di pubblicazionePubblicato - lug 2013
Pubblicato esternamente

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