La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Coleopteran communities of the salt marsh at the mouth of the Tafna River (Algeria). (2012)
Auteurs :	Samira Boukli Hacene, Auteur ; Karima Hassaine, Auteur ; Philippe Ponel, Auteur
Type de document :	Article
Dans :	La Terre et la Vie (67(1) MAR 2012)
Article en page(s) :	101-115
Mots-clés :	Algérie
Résumé :	Coleopteran communities of the salt marsh at the mouth of the Tafna River (Algeria). A study of Coleopteran communities was conducted between October 2009 and September 2010 in the salt marsh at the mouth of the Tafna River. Bimonthly trappings were carried out in five groups of vegetation and yielded 3833 specimens belonging to 140 species. This richness varies from one group to another (19 to 87 species). The high values are directly related to a shorter period of submersion, a lower salinity but also a greater floristic richness. Diversity indicators show that communities are diversified, regular and well structured with the exception of the samples from the lowest points where the highest salt concentrations are recorded. The highest richness and abundance are recorded mainly between early spring and early summer. Community composition is very different from one group to another; the similarity index does not exceed 40 %. The spatial micro-distribution of grouping floristic species has been demonstrated through an ascending hierarchical analysis.

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