Diversity and distribution patterns of benthic insects in streams of the Aures arid region (NE Algeria)
| Autor: | N. Chaabane, Abdelhak Rouabah, Imen Brik, As. Bouseba, F. Ghougali, Ra. Medjber |
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| Přispěvatelé: | Université Abou Bekr Belkaid Tlemcen, Batna University, Laboratoire Agronomie et Environnement (LAE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
[SDV]Life Sciences [q-bio] 010607 zoology Biodiversity STREAMS Oceanography ECOLOGY 010603 evolutionary biology 01 natural sciences INVERTEBRATES MACROINVERTEBRATE COMMUNITIES région aride diversité taxonomique Abundance (ecology) MIDDLE REACHES RIVER MANAGEMENT benthic invertebrate répartition des populations Invertebrate Ecology invertébré benthique Community structure 15. Life on land Arid FLOW REFUGIA GUADIANA BASIN Algérie Habitat 13. Climate action Benthic zone Environmental science COMMUNITY STRUCTURE INTERMITTENT STREAMS |
| Zdroj: | Oceanological and Hydrobiological Studies Oceanological and Hydrobiological Studies, 2019, 48 (1), pp.31-42. ⟨10.2478/ohs-2019-0004⟩ Oceanological and Hydrobiological Studies, Ysemm, 2019, 48 (1), pp.31-42. ⟨10.2478/ohs-2019-0004⟩ |
| ISSN: | 1730-413X 1897-3191 |
| DOI: | 10.2478/ohs-2019-0004⟩ |
| Popis: | The objective of the present study was to document the knowledge about the biodiversity of benthic insect communities and their distribution patterns in the semi-arid bioclimatic stage in the streams of the Aurès Region (NE Algeria). The distribution patterns of communities were analyzed in relation to some environmental factors: physicochemical water parameters and global habitat characteristics, including human impact. The taxonomic biodiversity of six sampled streams (wadis) comprises 42 insect taxa, belonging to seven orders and 30 families, of which Coleoptera is the most diverse order (15 taxa), whereas Diptera, Trichoptera and Ephemeroptera dominate in terms of abundance. The human impact, flow velocity and some quality parameters of water (potential of hydrogen, nitrite, concentration of orthophosphates and conductivity) were identified as the most influential environmental variables, which allows the prediction of taxonomic diversity indicators. The classification and regression tree analysis (CART) for benthic insects shows the effect of environmental variables (habitat parameters and human impact in the arid region) on the diversity and distribution of insect orders. The RDA analysis showed that altitude, substrate type, human impact and physicochemical parameters of water (pH, flow velocity, conductivity and total dissolved solids) are the most important predictor variables that play an important role in the distribution patterns of benthic insects. |
| Databáze: | OpenAIRE |
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