| Titre : | Environmental factors influencing Odonata communities of three Mediterranean rivers: Kebir-East, Seybouse, and Rhumel wadis, northeastern Algeria (2017) |
| Titre original: | Environmental factors influencing Odonata communities of three Mediterranean rivers |
| Auteurs : | Amina Yalles Satha, Auteur ; Boudjema Samraoui, Auteur |
| Type de document : | Article |
| Dans : | La Terre et la Vie (72(3) 2017) |
| Article en page(s) : | 314-329 |
| Langues: | Anglais |
| Mots-clés : | Algérie |
| Résumé : | Odonata are an important component of lotic communities and their abundance and diversity may inform on the health of running waters. The survey of the odonatofauna of three major Algerian wadis: Kebir-East, Seybouse, and Rhumel, led to the identification of 40 species. Our results revealed the presence of Calopteryx exul, a Maghrebian endemic, at Wadi Seybouse and seemed to confirm the extinction of the type population at Wadi Rhumel where the species was first recorded in the XIXth Century. The results also indicated the range expansion of several species: Coenagrion caerulescens, Orthetrum nitidinerve, Trithemis kirbyi and Urothemis edwardsii whose relict population is critically endangered. Additionally sampling of abiotic factors (altitude, water temperature, conductivity, etc.) was carried out and data analysed in view of exploring a possible co-structure between the faunistic and environmental data sets. Data analysis indicated that correlation between abiotic factors (hydroperiod, water conductivity and water temperature) and species richness differed between streams and thus Odonata may prove useful in evaluating the ecological integrity of Mediterranean lotic systems. |
| En ligne : | http://documents.irevues.inist.fr/handle/2042/62318 |



