N1-1 - Plages de sable de l'Atlantique, de la Baltique et de l'Arctique

Atlantic, Baltic and Arctic sand beach

Classification des habitats EUNIS 2022

Descriptif de l'habitat

Atlantic, Baltic and Arctic sandy beach is a linear habitat, occurring on sandy shores of the Atlantic and Arctic Oceans and the North and Baltic Seas. It is mainly an unvegetated habitat with low species diversity. Annual plants, often halophytes are the typical plant species, appearing temporarily on strandline sediments. On less dynamic beaches, as around the Baltic, perennials including some brackish and freshwater marsh plants are characteristic. Volcanic sediments can provide a distinctive character around Icelandic shores. Distinctive invertebrates characterise beaches and their driftlines, providing food for some wading birds.

Espèces diagnostiques

Cakile maritima, Honckenya peploides, Atriplex laciniata, Salsola kali aggr., Atriplex littoralis, Atriplex prostrata, Leymus arenarius, Atriplex calotheca, Elytrigia juncea, Atriplex glabriuscula

Espèces constantes

Cakile maritima, Salsola kali aggr., Atriplex prostrata, Elytrigia juncea, Honckenya peploides, Leymus arenarius, Atriplex littoralis, Tripleurospermum maritimum aggr., Ammophila arenaria, Atriplex laciniata, Atriplex calotheca

Espèces dominantes

Cakile maritima, Honckenya peploides, Atriplex prostrata, Atriplex littoralis, Atriplex calotheca

Bibliographie

 European Topic Centre on Biological Diversity, 2021. EUNIS terrestrial habitat classification 2021 including crosswalks. ETC/BD-EEA. Table Excel transmise par S. Hennekens (Alterra) le 14/02/2022. (Source)