| Titre : |
Alien bryophytes and lichens of Europe |
| Type de document : |
Extrait d'ouvrage |
| Auteurs : |
Franz Essl (1973-) ; Philip W. Lambdon |
| Année de publication : |
2009 |
| Importance : |
29-41 |
| Langues : |
Anglais (eng) |
| Catégories : |
[CBNPMP-Thématique] Bryophytes
[CBNPMP-Thématique] Lichen
[CBNPMP-Thématique] Plantes subspontanées, naturalisées, envahissantes
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| Résumé : |
Bryophytes (Bryophyta) include mosses (Bryopsida), liverworts (Hepaticopsida) and species-poor hornworts (Anthoceratopsida) (Söderström et al. 2002; Hill et al. 2006). Lichens are composite organisms, arising from a mutualistic association between a saprophytic fungus and a photosynthetic alga or bacterium (Ahmadjian 1993). The photosynthetic partner is usually also found as a common free-living species, and only the highly specific fungal partner is likely to be alien within Europe. Lichens are taxonomically disparate, united by common trophic strategy which has been adopted across a diverse range of fungal lineages. Lichens are distantly related to bryophytes, and biologically very different. Why therefore do we consider the two groups together in this chapter? In the context of invasions they share a number of important features which present trong practical parallels in the issues they create: (1) they are poorly recorded, so we have little information to assess their invasion history; (2) they are dispersed efficiently by spores, and have much greater natural colonizing ability than other major taxa; (3) since they have few cultivated uses there is a near-absence of deliberate introductions; (4) being small organisms and rarely parasitic, their impacts tend to be measurable only on a micro-scale (5) the possibility of subtle but long-term effects of such invasions has yet to be considered by the scientific community. |
| Lien pérenne : |
DOI : 10.1007/978-1-4020-8280-1_3  |
| Permalink : |
https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=85724 |
Essl, Franz (1973-), Lambdon, Philip W.
2009
Alien bryophytes and lichens of Europe.
In: Handbook of alien species in Europe. Springer, [S.l.]: 29-41.
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Alien bryophytes and lichens of Europe (2009)