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Genetic consequences of climatic oscillations in the Quaternary / Godfrey M. Hewitt in Philosophical Transactions Royal Society London B, 359 (1442) (2004)
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Titre : Genetic consequences of climatic oscillations in the Quaternary Type de document : Imprimé Auteurs : Godfrey M. Hewitt Année de publication : 2004 Article en page(s) : 183-195 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Revégétalisation
[CBNPMP-Thèmes] Restauration des écosystèmes
[CBNPMP-Thèmes] Génétique et écologie (dynamique, démographique, sélection)Résumé : An appreciation of the scale and frequency of climatic oscillations in the past few million years is modifying our views on how evolution proceeds. Such major events caused extinction and repeated changes in the ranges of those taxa that survived. Their spatial effects depend on latitude and topography, with extensive extinction and recolonization in higher latitudes and altitudinal shifts and complex refugia nearer the tropics. The associated population dynamics varied with life history and geography, and the present genetic constitution of the populations and species carry attenuated signals of these past dynamics. Phylogeographic studies with DNA have burgeoned recently and studies are reviewed from the arctic, temperate and tropical regions, seeking commonalities of cause in the resulting genetic patterns. Arctic species show distinct shallow genetic clades with common geographical boundaries. Thus Beringia is distinct phylogeographically, but its role as a refugial source is complex. Arctic taxa do not show the common genetic pattern of southern richness and northern purity in north-temperate species. Temperate refugial regions in Europe and North America show relatively deep DNA divergence for many taxa, indicating their presence over several Ice Ages, and suggesting a mode of speciation by repeated allopatry. DNA evidence indicates temperate species in Europe had different patterns of postglacial colonization across the same area and different ones in previous oscillations, whereas the northwest region of North America was colonized from the north, east and south. Tropical montane regions contain deeply diverged lineages, often in a relatively small geographical area, suggesting their survival there from the Pliocene. Our poor understanding of refugial biodiversity would benefit from further combined fossil and genetic studies. Lien pérenne : DOI : 10.1098/rstb.2003.1388 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=149019
in Philosophical Transactions Royal Society London B > 359 (1442) (2004) . - 183-195Hewitt, GM. 2004. Genetic consequences of climatic oscillations in the Quaternary. Philosophical Transactions Royal Society London B, 359(1442): 183-195.Genetic differentiation and regional adaptation among seed origins used for grassland restoration: Lessons from a multispecies transplant experiment / Anna Bucharova (2016)
Titre : Genetic differentiation and regional adaptation among seed origins used for grassland restoration: Lessons from a multispecies transplant experiment Type de document : Tiré à part de revue Auteurs : Anna Bucharova, Auteur ; Stefan Michalski, Auteur ; Julia-Maria Hermann, Auteur ; Karola Heveling, Auteur ; Norbert Hölzel (1963-), Auteur ; Johannes Kollmann (1963-), Auteur ; Oliver Bossdorf, Auteur Année de publication : 2016 Importance : 1-10 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Revégétalisation Résumé : One of the key questions in ecosystem restoration is the choice of seed material for restoring plant communities. More and more scientists and practitioners are currently advocating the use of regional seed sources, based on the argument that plants are often adapted to local or regional environmental conditions, and thus, regional seed sources should provide the best restoration success. However, there is still substantial debate about this approach, partly because of a lack of solid empirical data. We conducted a multispecies transplant experiment in which we compared the performance of eight seed origins of seven plant species frequently used in grassland restoration in four common gardens across Germany. We found that, on average, plants of regional origins produced 10% more inflorescences and 7% more biomass than those of foreign origins. There were substantial differences among species in the strength of these effects, but in the majority of the study species fitness decreased with increasing geographical distance of seed origins or with increasing climatic differences between plant origins and experimental sites. In addition to these effects on plant fitness, increasing geographical or climatic distances of origin were often also correlated with increasing differences in plant phenology. Since phenology is important for biotic interactions, especially with pollinators and seed predators, using foreign seed sources may have cascading effects on local ecosystems. Synthesis and applications. Genetic differentiation is widespread in grassland species and often shows the patterns of regional adaptation. Our study thus supports the use of regional seed sources in restoration. Moreover, using non-regional seed sources in grassland restoration may not only decrease the performance of plants, but it will likely also affect their biotic interactions.
Lien pérenne : DOI : 10.1111/1365-2664.12645 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=144176 Bucharova, A., Michalski, S., Hermann, J.M., Heveling, K., Hölzel, N., Kollmann, J., Bossdorf, O. 2016. Genetic differentiation and regional adaptation among seed origins used for grassland restoration: Lessons from a multispecies transplant experiment. Journal of applied ecology, 54(1) : 1-10.Documents numériques
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Article (2016)URL
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Titre : Genetic Erosion : No longer just an agricultural issue Type de document : Imprimé Auteurs : Deborah L. Rogers Année de publication : 2004 Article en page(s) : 113-122 Langues : Anglais (eng) Catégories : [CBNPMP-Thèmes] Généralités en amélioration des plantes et valorisation
[CBNPMP-Thèmes] Revégétalisation
[CBNPMP-Thèmes] Diversité génétiqueRésumé : Genetic considerations pertaining to planting projects usually emphasize locally adapted source material. However, the amount of genetic diversity in the plant materials is important as well. Genetic erosion is the loss of genetic diversity—often magnified or accelerated by human activities. In native plant populations, genetic erosion results from habitat loss and fragmentation, but it also can result from a narrow genetic base in the original collections or by practices that reduce genetic diversity. Although species-specific guidelines are not available, managers can minimize the risk of genetic erosion by being familiar with the biology of the affected species (including breeding system, mode of reproduction, and pattern of genetic diversity). Narrowly based genetic collections should be avoided, providers of plant materials for revegetation projects should offer information on their collection methods, and nursery managers should endeavor to minimize diversity losses at all stages of nursery culture. Lien pérenne : DOI : 10.2979/NPJ.2004.5.2.112 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=148346
in Native Plants Journal > 5 (2) (2004) . - 113-122Rogers, DL. 2004. Genetic Erosion : No longer just an agricultural issue. Native Plants Journal, 5(2): 113-122.Documents numériques
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Article (2004)URL Génie biologique contre l'érosion torrentielle / Freddy Rey (2011)
Titre : Génie biologique contre l'érosion torrentielle Type de document : Imprimé Auteurs : Freddy Rey (1973-) Editeur : Quae Année de publication : 2011 Importance : 100 p. ISBN/ISSN/EAN : 978-2-7592-1660-4 Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Revégétalisation
[CBNPMP-Thèmes] Restauration des écosystèmesPermalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=82169 Rey, F. 2011. Génie biologique contre l'érosion torrentielle. Quae, [S.l.]. 100 pp.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 24648 8250 Livre Centre de documentation Bibliothèque Consultable Le génie écologique : pratiques innovantes pour les écosystèmes et les territoires / Renaud Jégat (2015)
Titre : Le génie écologique : pratiques innovantes pour les écosystèmes et les territoires Type de document : Imprimé Auteurs : Renaud Jégat Editeur : Educagri éditions Année de publication : 2015 Collection : Chemins durables Importance : 184 p. ISBN/ISSN/EAN : 978-2-84444-991-7 Langues : Français (fre) Catégories : [CBNPMP-Thèmes] Revégétalisation
[CBNPMP-Thèmes] Reverdissement
[CBNPMP-Thèmes] Génie forestier, RTM
[CBNPMP-Thèmes] Gestion forestière (protection, RTM)Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=82603 Jégat, R. 2015. Le génie écologique : pratiques innovantes pour les écosystèmes et les territoires. Educagri éditions, [S.l.]. 184 pp.Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 25546 REV Livre Bureaux Restauration écologique Consultable Géotextiles et végétalisation : étude et modélisation des conditions micro climatiques au voisinage du sol et de leur influence sur une espèce semée / Véronique Magnin (2003)
PermalinkGestion forestière et ingénierie écologique / Christophe Chauvin in Ingénieries : eau - agriculture - territoires, n.s. (2004)
PermalinkGestion de la végétation des digues et berges sous contraintes de sécurité / Michel Vennetier in Ingénieries : eau - agriculture - territoires, n.s. (2004)
PermalinkDes graines pour reverdir la montagne / Emilie Letrucq in Pyrénées magazine, 116 (04/2008)
PermalinkGrassland farming and land management systems in mountainous regions, 16th Sysposium of the European Grassland Federation / Erich M. Pötsch (2011)
PermalinkGrassland farming and land management systems in mountainous regions : book of abstracts, 16th Sysposium of the European Grassland Federation / Erich M. Pötsch (2011)
PermalinkGuide écologique du gazon et des pelouses fleuries / Elisabeth Julien (2011)
PermalinkUn guide pour de meilleures pratiques de revégétalisation dans les Pyrénées / Sandra Malaval (2008)
PermalinkGuide pour l'utilisation d'arbres et d'arbustes pour la végétalisation à vocation écologique et paysagère en Région Nord-Pas de Calais / Thierry Cornier (2011)
PermalinkGuide pour l'utilisation de plantes herbacées pour la végétalisation à vocation écologique et paysagère en région Nord - Pas de Calais / Emilien Henry (2011)
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