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Increasing status of non-native vascular plants in the Sefton Coast sand-dune system, north Merseyside, UK / Philip Howard Smith in British & Irish Botany, vol. 2, n°2 (Année 2020)

Public [article]  inBritish & Irish Botany > vol. 2, n°2 (Année 2020) . - pp. 102-126 Titre : Increasing status of non-native vascular plants in the Sefton Coast sand-dune system, north Merseyside, UK Type de document : texte imprimé Auteurs : Philip Howard Smith, Auteur Année de publication : 2020 Article en page(s) : pp. 102-126 Langues : Anglais (eng) Catégories : [habitats/milieux] 1 - Habitats littoraux et halophile [habitats/milieux] 16 - Dunes côtières et plages de sable [Espèces (in biblio)] Hippophaë rhamnoides [Espèces (in biblio)] Rosa rugosa [Thèmes] Flore vasculaire (phanérogames et cryptogames vasculaires) Mots-clés : taxon non indigène  plante exotique  plante échappée de jardin  néophyte Résumé : "Over 460 non-native (alien) taxa were recorded in a Sefton Coast sand-dune vascular plant inventory, their proportion in the flora increasing after 1999. Between 2005/06 and 2018, twice as many non-native as native plants were found. An analysis of occurrences of native and non-native taxa in six major habitat types found that a higher proportion of aliens was present in scrub/woodland and disturbed ground, while native plants had more occurrences in fixed dunes/dune grasslands, dune heath and wetlands. No differences between the two groups were detected for strandline/shingle and embryo/mobile dune habitats. Twenty-four non-native and 14 native taxa showed invasive characteristics in the duneland. The former included especially Hippophae rhamnoides and Rosa rugosa, both constituting major threats to sand-dune biodiversity. Particularly invasive native plants were Arrhenatherum elatius, Betula spp., Salix cinerea, and Ulex europaea. The main findings accord with studies elsewhere in Britain and Europe showing recent increases of neophytes in semi-natural habitats and that both non-native and native species can have invasive traits. The open habitats of coastal dunes seem to be particularly susceptible to plant invasions." (source : auteur) Type de publication : périodique Référence biblio : Smith P., 2020 - Increasing status of non-native vascular plants in the Sefton Coast sand-dune system, north Merseyside, UK. British & Irish Botany, 2 (2) : 102-126. ID PMB : 69690 DOI : 10.33928/bib.2020.02.102 Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69690 [article]

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Japanese Rose (Rosa rugosa) : its invasion and colonisation of the Sefton Coast, north Merseyside, UK / Philip Howard Smith in British & Irish Botany, vol. 1, n°3 (Année 2019)  

Public [article]  inBritish & Irish Botany > vol. 1, n°3 (Année 2019) . - pp. 185-201 Titre : Japanese Rose (Rosa rugosa) : its invasion and colonisation of the Sefton Coast, north Merseyside, UK Type de document : texte imprimé Auteurs : Philip Howard Smith, Auteur ; Ben Deed, Auteur Année de publication : 2019 Article en page(s) : pp. 185-201 Langues : Anglais (eng) Catégories : [habitats/milieux] 1 - Habitats littoraux et halophile [habitats/milieux] 16 - Dunes côtières et plages de sable [Espèces (in biblio)] Rosa rugosa [ZG] Royaume-Uni et Irlande Mots-clés : taxon non natif  aire de répartition  introduction  gestion  biologie Résumé : "A spiny shrub native to north-west Pacific coasts, Rosa rugosa Thunb. (Japanese Rose) was introduced into Britain in the 19th century as a garden plant. It has since become a well-established and widespread naturalised alien, especially on sand-dunes, shingle beaches and other dry coastal habitats. The plant is also considered invasive on coasts of many other countries in Northwest Europe. Mounting concern about its recent spread on the internationally important sand-dune system of the Sefton Coast, north Merseyside, led to a volunteer survey being organised in 2014, involving 47 participants. They searched most of the 27 km-long coastal zone, recording almost 500 patches with a total area of nearly 6 ha. R. rugosa occurred especially on younger calcareous dunes (soil pH 5.6 – 8.2) near the sea and close to roads and human habitation. Few patches were found on older, more acidic duneland, or on a 5 km erosion front around Formby Point. This pattern of occurrence accords with that reported elsewhere for R. rugosa, indicating that the sea is implicated in the dispersion of propagules and that the species also establishes from anthropogenic sources, including ornamental plantings. It is concluded that the plant is a threat to dune habitats and species on the Sefton Coast. Control measures are discussed and the early stages of patch removal are described." (source : auteurs) Type de publication : périodique Référence biblio : Smith P., Deed B., 2019 - Japanese Rose (Rosa rugosa) : its invasion and colonisation of the Sefton Coast, north Merseyside, UK. British & Irish Botany, 1 (3) : 185-201. ID PMB : 69685 En ligne : https://britishandirishbotany.org/index.php/bib/article/view/15/36 Format de la ressource électronique : document Permalink : http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=69685 [article]

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