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Adaptive and plastic responses of Quercus petraea populations to climate across Europe / Cuauhtémoc Saenz-Romero in Global change biology, vol 23 n° 7 (July 2017)  

Public [article]  inGlobal change biology > vol 23 n° 7 (July 2017) . - pp 2831 - 2847 Titre : Adaptive and plastic responses of Quercus petraea populations to climate across Europe Type de document : Article/Communication Auteurs : Cuauhtémoc Saenz-Romero, Auteur ; Jean-Baptiste Lamy, Auteur ; Alexis Ducousso, Auteur ; Brigitte Musch, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 2831 - 2847 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse comparative [Termes IGN] changement climatique [Termes IGN] Danemark [Termes IGN] forêt tempérée [Termes IGN] France (administrative) [Termes IGN] Hongrie [Termes IGN] modèle de simulation [Termes IGN] Norvège [Termes IGN] Quercus sessiliflora [Termes IGN] Turquie [Vedettes matières IGN] Végétation et changement climatique Résumé : (auteur) How temperate forests will respond to climate change is uncertain; projections range from severe decline to increased growth. We conducted field tests of sessile oak (Quercus petraea), a widespread keystone European forest tree species, including more than 150 000 trees sourced from 116 geographically diverse populations. The tests were planted on 23 field sites in six European countries, in order to expose them to a wide range of climates, including sites reflecting future warmer and drier climates. By assessing tree height and survival, our objectives were twofold: (i) to identify the source of differential population responses to climate (genetic differentiation due to past divergent climatic selection vs. plastic responses to ongoing climate change) and (ii) to explore which climatic variables (temperature or precipitation) trigger the population responses. Tree growth and survival were modeled for contemporary climate and then projected using data from four regional climate models for years 2071–2100, using two greenhouse gas concentration trajectory scenarios each. Overall, results indicated a moderate response of tree height and survival to climate variation, with changes in dryness (either annual or during the growing season) explaining the major part of the response. While, on average, populations exhibited local adaptation, there was significant clinal population differentiation for height growth with winter temperature at the site of origin. The most moderate climate model (HIRHAM5-EC; rcp4.5) predicted minor decreases in height and survival, while the most extreme model (CCLM4-GEM2-ES; rcp8.5) predicted large decreases in survival and growth for southern and southeastern edge populations (Hungary and Turkey). Other nonmarginal populations with continental climates were predicted to be severely and negatively affected (Bercé, France), while populations at the contemporary northern limit (colder and humid maritime regions; Denmark and Norway) will probably not show large changes in growth and survival in response to climate change. Numéro de notice : A2017-676 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1111/gcb.13576 En ligne : http://doi.org/10.1111/gcb.13576 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=87202 [article]

Genetic differentiation of European larch along an altitudinal gradient in the French Alps / Maxime Nardin in Annals of Forest Science, vol 72 n° 5 (July 2015)  

Public [article]  inAnnals of Forest Science > vol 72 n° 5 (July 2015) . - pp 517-527 Titre : Genetic differentiation of European larch along an altitudinal gradient in the French Alps Type de document : Article/Communication Auteurs : Maxime Nardin, Auteur ; Brigitte Musch, Auteur ; Yves Rousselle, Auteur ; et al., Auteur Année de publication : 2015 Article en page(s) : pp 517-527 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes IGN] Alpes (France) [Termes IGN] altitude [Termes IGN] cambium [Termes IGN] classification de Dempster-Shafer [Termes IGN] diversité génétique [Termes IGN] génétique [Termes IGN] gradient [Termes IGN] Larix decidua [Termes IGN] montagne [Termes IGN] placette d'échantillonnage [Termes IGN] variabilité génétique Résumé : (Auteur) Key message : Despite variable dynamics of genetic diversification at the different altitudinal levels, strong gene flow tends to standardize larch genetic diversity: the larch forest distributed along the altitudinal gradient can be regarded as a single population. Context : While in forest tree species many studies focus on the structure of the genetic diversity at the natural range and at the forest stand levels, few studies have worked at intermediate levels like the landscape level. Aims : We tried to determine to what degree altitude variation can affect the genetic diversity and the local structure of the genetic diversity of European larch (Larix decidua Miller) at the landscape level. Methods : Using microsatellite markers, we determined the between- and within-plot genetic structure and the spatial genetic structure (SGS) of four altitudinal plots distributed between 1,350 and 2,300 m a.s.l. in a European larch forest located in the French Alps. Results : A homogenous neutral genetic structure was detected along this gradient. The intensity of the SGS was found to be stronger at 2,300 m and decreased at the 2,000-m plot. It was low or non-existent at the 1,700- and 1,350-m altitudinal levels. Conclusion : Our results suggest that the genetic structure observed at the landscape level in this European larch forest was only slightly affected by climatic variation, human activities, or historical events. However, the variation of intensity of the SGS within the altitudinal plots indicates the existence of variable genetic dynamics, despite the globally uniform genetic structure along the altitudinal gradient. Numéro de notice : A2015-413 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-015-0483-8 Date de publication en ligne : 30/04/2015 En ligne : https://doi.org/10.1007/s13595-015-0483-8 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=76903 [article]

Alisier torminal, alisier blanc, hybrides... comment s'y retrouver ? / Brigitte Musch in Rendez-vous techniques, n° 22 (automne 2008)

Public [article]  inRendez-vous techniques > n° 22 (automne 2008) . - p. 61-67 Titre : Alisier torminal, alisier blanc, hybrides... comment s'y retrouver ? Type de document : Article/Communication Auteurs : Brigitte Musch, Auteur ; Sylvie Oddou-Muratorio, Auteur ; Laurent Lévèque, Auteur ; Michel Vallance, Auteur ; Bénédicte Le Guerroué, Auteur Année de publication : 2009 Article en page(s) : p. 61-67 Note générale : Bibliogr. Langues : Français (fre) Descripteur : [Termes IGN] génétique forestière [Termes IGN] sorbus aria [Termes IGN] Sorbus torminalis [Vedettes matières IGN] Botanique Résumé : (éditeur) L'hybridation entre l'alisier torminal et l'alisier blanc est complexe. Elle est à l'origine de multiples formes d'alisiers hybrides. Comprendre les mécanismes qui sous tendent l'apparition de ces différents hybrides et savoir les distinguer est un enjeu important pour une bonne gestion des ressources génétiques de ces espèces. Numéro de notice : IFN_2857 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=71701 [article]

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Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-DIR-P000287	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt