Plant Ecology and Evolution / Société royale de botanique de Belgique . 148 (2)Paru le : 01/07/2015 |
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Ajouter le résultat dans votre panierPast and present distribution of the rare aquatic plant Luronium natans (Alismataceae) in Belgium shows marked decline and bad conservation status / Anne Ronse in Plant Ecology and Evolution, 148 (2) (July 2015)
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Titre : Past and present distribution of the rare aquatic plant Luronium natans (Alismataceae) in Belgium shows marked decline and bad conservation status Type de document : Imprimé Auteurs : Anne Ronse ; An Leyssen ; Jo Packet ; Luc Denys Année de publication : 2015 Article en page(s) : 160-170 Langues : Anglais (eng) Catégories : [CBNPMP-Géographique] Belgique Mots-clés : Luronium natans (L.) Raf., 1840 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142703
in Plant Ecology and Evolution > 148 (2) (July 2015) . - 160-170Ronse, Anne, Leyssen, An, Packet, Jo, Denys, Luc 2015 Past and present distribution of the rare aquatic plant Luronium natans (Alismataceae) in Belgium shows marked decline and bad conservation status. Plant Ecology and Evolution, 148(2): 160-170.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité R12817 P-1464 Revue Centre de documentation Revues Consultable Specialist plant species harbour higher reproductive performances in recently restored calcareous grasslands than in reference habitats / Mélanie Harzé in Plant Ecology and Evolution, 148 (2) (July 2015)
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Titre : Specialist plant species harbour higher reproductive performances in recently restored calcareous grasslands than in reference habitats Type de document : Imprimé Auteurs : Mélanie Harzé ; Grégory Mahy ; Jean-Philippe Bizoux ; Julien Piqueray ; Arnaud Monty Année de publication : 2015 Article en page(s) : 181-190 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Restauration des écosystèmes
[CBNPMP-Thèmes] ReverdissementPermalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=142704
in Plant Ecology and Evolution > 148 (2) (July 2015) . - 181-190Harzé, Mélanie, Mahy, Grégory, Bizoux, Jean-Philippe, Piqueray, Julien, Monty, Arnaud 2015 Specialist plant species harbour higher reproductive performances in recently restored calcareous grasslands than in reference habitats. Plant Ecology and Evolution, 148(2): 181-190.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité R12817 P-1464 Revue Centre de documentation Revues Consultable Effects of fragmentation and population size on the genetic diversity of Centaurea cyanus (Asteraceae) populations / Cécile Petit in Plant Ecology and Evolution, 148 (2) (July 2015)
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Titre : Effects of fragmentation and population size on the genetic diversity of Centaurea cyanus (Asteraceae) populations Type de document : Imprimé Auteurs : Cécile Petit ; Hélène Arnal ; Henri Darmency (1952-) Année de publication : 2015 Article en page(s) : 191-198 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Conservation et gestion des espèces
[CBNPMP-Thèmes] Mauvaises herbes
[CBNPMP-Thèmes] MessicoleMots-clés : Centaurea cyanus L., 1753 Résumé : Aims – Centaurea cyanus L. is a patrimonial species emblematic of the flora associated with cereal crops, but it is currently declining in Western Europe because of agricultural intensification. The decrease in both the area and connectivity of populations could affect the genetic structure and variability of the populations, and in turn their potential to survive. Methods – We studied the genetic variability of ten large and five small C. cyanus populations from two contrasted French regions using seven nuclear isozyme markers, and of twelve Western European populations using eighteen chloroplast markers. Results – The analysis of leaf isozymes revealed that all populations, except one, had a deficit of heterozygous individuals (average Fis = 0.81), which could confirm the presence of a proportion of selfcompatible plants. The level of variability was high. Genetic diversity was not lower in small than in large populations, and there was no reduced genetic diversity in the region where C. cyanus populations are rare. There was low but significant differentiation among populations (Fst = 0.068), especially between small and large populations, but not between regions. In contrast, no polymorphism was found among the 371 chloroplast DNA sequences analysed (i.e. around 8–10% of the chloroplast genome). Conclusions – The observed pattern of variability could reflect the first effects of the rarefaction and fragmentation of previously abundant, widely distributed and poorly structured C. cyanus populations, on the reproduction regime and onset of genetic heterogeneity among populations. Lien pérenne : DOI : 10.5091/plecevo.2015.916 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=145981
in Plant Ecology and Evolution > 148 (2) (July 2015) . - 191-198Petit, Cécile, Arnal, Hélène, Darmency, Henri (1952-) 2015 Effects of fragmentation and population size on the genetic diversity of Centaurea cyanus (Asteraceae) populations. Plant Ecology and Evolution, 148(2): 191-198.Exemplaires (1)
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