[article]
| Titre : |
The Vegetation of Exposed Sea Cliffs at South Stack, Anglessey, II. Experimental Studies |
| Auteurs : |
F. B. Goldsmith, Auteur |
| Année de publication : |
1973 |
| Article en page(s) : |
pp. 819-829 |
| Langues : |
Anglais (eng) |
| Catégories : |
[habitats/milieux] 18 - Côtes rocheuses et falaises maritimes
[Thèmes] Ecologie
[Thèmes] Végétation
|
| Mots-clés : |
pulvérisation de sel communauté végétale embrun salin |
| Résumé : |
"The detailed investigation of a small area of cliff near South Stack, Anglesey, involved the collection of salt spray and a study of the temporal and spatial pattern of its deposition. Deposition was positively correlated with strong westerly winds, especially those over 30 knots. The amount of salt deposited depended primarily on height or distance from the sea and secondarily on local topographic features providing shelter or increasing exposure. Vegetational differences over the area intensively studied were considered to be due to the pattern of salt deposition and to differential rates of evaporation. The relationship between competition and salinity for maritime and inland species was investigated by selecting two species and growing them together in various proportions in a `de Wit' replacement series. Armeria maritima, the maritime species, had the competitive advantage under saline conditions but Festuca rubra, the inland one, had the advantage under non-saline conditions. Both species, however, produced the same yield when grown alone under both treatments. It is concluded that maritime cliff species have no salt requirement but, because they are slow-growing and semi-prostrate, they require an environment of low competitive intensity. Competition from inland species is reduced on exposed sea cliffs by high levels of soil salinity and foliar salt damage due to the incidence of salt spray during gales." (source : auteur) |
| Type de publication : |
périodique |
| Référence biblio : |
Goldmith F.-B., 1973 - The Vegetation of Exposed Sea Cliffs at South Stack, Anglessey, II. Experimental Studies. Journal of Ecology, 61 (3) : 819-829. |
| ID PMB : |
72233 |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=72233 |
in Journal of Ecology > vol. 61, n°3 (Année 1973) . - pp. 819-829
[article]
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