[article]
| Titre : |
Population biology and management of the marsh gentian (Gentiana pneumonanthe L.), a rare species in The Netherlands |
| Auteurs : |
]. Gerard B. Oostermeijer, Auteur ; J. C. M. den Nijs, Auteur ; Leon E. L. Raijmann, Auteur |
| Année de publication : |
1992 |
| Article en page(s) : |
pp. 117-130 |
| Langues : |
Anglais (eng) |
| Catégories : |
[Espèces (in biblio)] Gentiana pneumonanthe
[Thèmes] Conservation
[Thèmes] Pays basque
[Thèmes] Plante à forte valeur patrimoniale
|
| Mots-clés : |
gestion suivi biologie des populations |
| Résumé : |
"A broad study into the population biology of the marsh gentian has revealed so far that in The Netherlands there are two types of populations, characterized by a different demographic behaviour, viz. 'dynamic' populations, with high seedling turnover and low percentage of adult flowering plants, and 'static' or 'senile' populations, consisting mostly of flowering individuals and with hardly any seedlings. Also, populations encounter problems due to increasing isolation and decreasing numbers of individuals. Important parameters, such as seedling recruitment, seedling growth potential, seed production, rates of outcrossing and gene flow and the degree of genetic variation, all appear to be reduced in small populations. An evaluation of the effects of different management strategies, based on population ecological studies, is discussed as well." (source : auteurs) |
| Type de publication : |
périodique |
| Référence biblio : |
Oostermeijer ].-G., den Nijs J.-C.-M., Raijmann L.-L., 1992 - Population biology and management of the marsh gentian (Gentiana pneumonanthe L.), a rare species in The Netherlands. Botanical Journal of the Linnean Society, 108 (2) : 117-130. |
| ID PMB : |
71996 |
| Permalink : |
http://www.cbnbrest.fr/catalogue_en_ligne/index.php?lvl=notice_display&id=71996 |
in Botanical Journal of the Linnean Society > vol. 108, n°2 (Année 1992) . - pp. 117-130
[article]
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