Feeding habits, fine structure and microhabitat preference of Euthyplocia hecuba (Hagen, 1861) (Ephemeroptera: Euthyplociidae) nymphs from Honduras

Stefano Fenoglio, Tiziano Bo, Artur Czekaj, Elzbieta Rościszewska

Risultato della ricerca: Contributo su rivistaArticolo in rivistapeer review

Abstract

The Euthyplociidae are a tropical and subtropical Ephemeropteran group. The aim of this study was to augment knowledge on some aspects of the biology and ecology of Euthyplocia hecuba (Hagen, 1861) nymphs. Mayflies were collected in the Rio El Padre, located on the Caribbean slope of Honduras. Diet, microhabitat preference and some fine morphological aspects of the nymphs were examined. E. hecuba nymphs are very specialised organisms that occupy a specific ecological niche in the lotic/benthic community. Immature stages show an evident preference for life in soft and fine substrata. They are detritivorous burrowers that ingest large amounts of fine particles deposited by river flow in sedimentation areas. They show peculiar morphological adaptations for life in this particular substratum, such as mouthparts modified for digging and collection of fine organic sediments, digging legs with shovel-like tibiae and massive femora, and filamentous gills.

Lingua originaleInglese
pagine (da-a)43-49
Numero di pagine7
RivistaFolia Biologica
Volume56
Numero di pubblicazione1-2
DOI
Stato di pubblicazionePubblicato - 2008
Pubblicato esternamente

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