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Article: Numérique

The ecology of bracken : its role in succession and implications for control / Rob H. Marrs in Annals of Botany, 85 (B) (03/2000)

Article (2000)

[article]
inAnnals of Botany > 85 (B) (03/2000) . - 3-15

Titre :	The ecology of bracken : its role in succession and implications for control
Type de document :	Numérique
Auteurs :	Rob H. Marrs ; Mike G. Le Duc ; RJ Mitchell ; D Goddard ; S Paterson ; Robin J. Pakeman
Année de publication :	2000
Article en page(s) :	3-15
Langues :	Anglais (eng)
Catégories :	[CBNPMP-Thématique] Ptéridophytes, fougères
Mots-clés :	Pteridium aquilinum
Résumé :	Bracken (Pteridium) holds a pivotal role in succession, usually occurring in sequence between plagio-climax communities such as heathland and woodland. It is at this interface that bracken causes problems for man, as the subseral communities are more valuable for agricultural use and most have a greater conservation value than brackendominated ones (there are a few exceptions). This paper examines the role of bracken in a series of successional trajectories on lowland heaths; there is evidence that bracken occurs in a trajectory towards birch woodland in Dorset. Whether the bracken stage is an intermediate stage towards woodland or acts as a 'mini-climax' in itself remains to be demonstrated. Thereafter, the impact of bracken control on vegetation development is examined from two successional viewpoints, succession reversal towards the early successional communities, and successional accelerations towards woodland. A range of examples is provided from: (1) lowland heaths in England; (2) moorlands in upland Britain where bracken has been treated with asulam; and (3) in North Wales where attempts have been made to restock woodlands.
Lien pérenne :	DOI : 10.1006/anbo.1999.1054
Permalink :	https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142047

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