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Définition des hydro-écorégions françaises métropolitaines. Approche régionale de la typologie des eaux courantes et éléments pour la définition des peuplements de référence d'invertébrés

Abstract : A preliminary validation was done in analysing a running waters invertebrate database including 225 samples from 76 reference sites distributed among ten HER-1. Due to the unequal distribution of sites among HER-1, these were grouped for statistical analysis into six "ecoregions" covering a large arrow of geographical diversity : internal Alps, calcareous Préalpes, Mediterranean region, granitic mountains (Massif Central), calcareous plains and hercynian lowlands (Armoricain). Invertebrates were identified at the family level, and samples were taken in different seasons including spring and summer for the six regions. Stream order ranked from 1 to 6 but with unequal repartition between regions. As a whole, there was a good fit between hydro-ecoregions and the invertebrate fauna.
Mots-clés : CEMAGREF BELY LHQ
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Submitted on : Thursday, May 14, 2020 - 8:37:28 PM
Last modification on : Friday, October 23, 2020 - 4:52:16 PM

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  • HAL Id : hal-02580774, version 1
  • IRSTEA : PUB00010699

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J.G. Wasson, A. Chandesris, H. Pella, L. Blanc. Définition des hydro-écorégions françaises métropolitaines. Approche régionale de la typologie des eaux courantes et éléments pour la définition des peuplements de référence d'invertébrés. irstea. 2002, pp.190. ⟨hal-02580774⟩

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