La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Homage to the Virgin of Ecology, or why an aquatic insect unadapted to desiccation may maintain populations in very small, temporary Mediterranean streams
Auteurs :	Cesc Murria, Auteur ; Núria Bonada, Auteur ; Carles Ribera, Auteur ; Narcis Prat, Auteur
Type de document :	Article
Dans :	Hydrobiologia (653(1) OCT 2010)
Article en page(s) :	179-190
Résumé :	In temporary streams, the annual constriction of drying is associated with high local extinction risk. To survive in such habitats, organisms with no specific biological traits for coping with dry periods should experience high colonisation rates from permanent reaches of the same basin or from other basins. Hydropsyche siltalai is a widespread caddisfly common in permanent and temporary headwaters reaches in the Mediterranean climate region of the Iberian Peninsula. In this study, we used genetic analyses to test if populations of H. siltalai in temporary streams are resettled from populations of the same basin or from other basins. The geographical distribution of H. siltalai was surveyed in 97 temporary and permanent reaches across four basins; larvae were found in

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