Descripteur
Documents disponibles dans cette catégorie (46)
Ajouter le résultat dans votre panier
Visionner les documents numériques
Affiner la recherche Interroger des sources externes
Etendre la recherche sur niveau(x) vers le bas
Coupling fossil records and traditional discrimination metrics to test how genetic information improves species distribution models of the European beech Fagus sylvatica / Pedro Poli in European Journal of Forest Research, vol 141 n° 2 (April 2022)
[article]
Titre : Coupling fossil records and traditional discrimination metrics to test how genetic information improves species distribution models of the European beech Fagus sylvatica Type de document : Article/Communication Auteurs : Pedro Poli, Auteur ; Annie Guiller, Auteur ; Jonathan Lenoir, Auteur Année de publication : 2022 Article en page(s) : pp - 253–265 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] adaptation (biologie)
[Termes IGN] bioclimatologie
[Termes IGN] distribution spatiale
[Termes IGN] espèce végétale
[Termes IGN] Europe (géographie politique)
[Termes IGN] Fagus sylvatica
[Termes IGN] fossile
[Termes IGN] génétique forestière
[Termes IGN] Holocène
[Termes IGN] modèle de simulation
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) Species distribution models (SDMs) are widely used to hindcast or forecast suitable habitat conditions during climate change. Although distant populations of a given species may show local adaptations to diverging environmental conditions, traditional SDMs disregard intraspecific variation. Yet, incorporating genetic information into SDMs could improve predictions. Here we aimed at investigating whether genetically informed SDMs would outperform traditional SDMs. Using published information on the spatial genetic structure of the European Beech Fagus sylvatica L. (1753), we built lineage-specific SDMs for each phylogenetic group of the species. We then combined all lineage-specific SDMs into a single genetically informed SDM that we compared against a traditional SDM approach. We finally compared SDMs’ predictions against independent datasets of present-day distribution as well as fossil distribution data from the Mid-Holocene, using six metrics of model performance. We found that aggregating lineage-specific SDMs into a single genetically informed SDM increased model performances to identify suitable areas currently occupied by F. sylvatica. In comparison to a traditional SDM, the genetically informed SDM we built for F. sylvatica assigned higher probabilities of occurrence during the Mid-Holocene at locations where fossil records were found. Aggregating lineage-specific SDMs into a single genetically informed SDM seems to outperform the traditional SDM approach, especially so when the aim is to identify potentially suitable areas of occupancy. This could be particularly useful for the identification of cryptic refugia that remain undetected by traditional SDMs. Genetically informed SDMs have the potential to improve our understanding of species redistribution under climate change. Numéro de notice : A2022-296 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s10342-021-01437-1 Date de publication en ligne : 27/01/2022 En ligne : https://doi.org/10.1007/s10342-021-01437-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=100353
in European Journal of Forest Research > vol 141 n° 2 (April 2022) . - pp - 253–265[article]Geomorphology and (palaeo-)hydrography of the Southern Atbai plain and western Eritrean Highlands (Eastern Sudan/Western Eritrea) / Stefano Costanzo in Journal of maps, vol 17 n° 2 (February 2021)
[article]
Titre : Geomorphology and (palaeo-)hydrography of the Southern Atbai plain and western Eritrean Highlands (Eastern Sudan/Western Eritrea) Type de document : Article/Communication Auteurs : Stefano Costanzo, Auteur ; Andrea Zerboni, Auteur ; Mauro Cremaschi, Auteur ; et al., Auteur Année de publication : 2021 Article en page(s) : pp 51 - 62 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie thématique
[Termes IGN] analyse du paysage
[Termes IGN] carte géomorphologique
[Termes IGN] ère quaternaire
[Termes IGN] Erythrée
[Termes IGN] hydrographie
[Termes IGN] montagne
[Termes IGN] roche
[Termes IGN] Sahel
[Termes IGN] Soudan
[Termes IGN] tectoniqueRésumé : (auteur) We present the geomorphology of the Southern Atbai Plain (Eastern Sudan) and the western edge of the Eritrean Highlands (Western Eritrea), in the eastern Sahel. The mountainous area consists of Paleo-Proterozoic gneiss and Neo-Proterozoic igneous rocks and meta-volcanic assemblages shaped as inselbergs and whaleback landforms by weathering. Bare-rock hills emerge from a gentle glacis that oversees the Southern Atbai alluvial plain, located between the Atbara and Gash Rivers. The plain features the SSE-NNW-oriented endorheic terminal fan of the Gash River and is crossed by intricate Early to Late Pleistocene paleochannels, whose evolution was controlled by the interplay between Quaternary regional tectonics and arid to humid climatic and environmental oscillations. The map is intended to interpret the evolution of local landscape, thus representing a tool for reconstructing the spatial and temporal distribution of Late Quaternary archaeological features and their functional relationships with the fossil fluvial system and the western foothills. Numéro de notice : A2021-201 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/17445647.2020.1869112 Date de publication en ligne : 17/01/2021 En ligne : https://doi.org/10.1080/17445647.2020.1869112 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=97156
in Journal of maps > vol 17 n° 2 (February 2021) . - pp 51 - 62[article]Clinal variation along precipitation gradients in Patagonian temperate forests: unravelling demographic and selection signatures in three Nothofagus spp. / Carolina Soliani in Annals of Forest Science, Vol 77 n° 1 (March 2020)
[article]
Titre : Clinal variation along precipitation gradients in Patagonian temperate forests: unravelling demographic and selection signatures in three Nothofagus spp. Type de document : Article/Communication Auteurs : Carolina Soliani, Auteur ; Maria Marta Azpilicueta, Auteur ; Maria Veronica Arana, Auteur ; Paula Marchelli, Auteur Année de publication : 2020 Article en page(s) : 17 p. Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] analyse diachronique
[Termes IGN] forêt tempérée
[Termes IGN] génétique forestière
[Termes IGN] Nothofagus (genre)
[Termes IGN] nothofagus pumilio
[Termes IGN] Patagonie
[Termes IGN] Pléistocène
[Termes IGN] précipitation
[Termes IGN] prévision
[Termes IGN] sécheresse
[Termes IGN] stress hydrique
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) Key message: Past demographic changes and current selection pressures determine the genetic variation displayed by Nothofagus species along rainfall gradients. Based on the diversity trends observed at candidate genes associated to drought stress, we inferred a differential species’ adaptive potential.
Context: Clinal genetic variation in natural populations could reflect either recent demographic history or the evolution of adapted genotypes along heterogeneous environments.
Aims: We describe genetic variation patterns in three Nothofagus species of South American temperate forests, growing along steep rainfall gradients. Our hypothesis is that the selection pressure along this gradient reinforces the genetic structure previously shaped by Pleistocene climate oscillations.
Methods: We screened variation along gradients at putative adaptive markers: candidate genes involved in response to drought, and EST-SSRs linked to drought stress genes. Genomic SSRs (gSSRs) were used to decouple the incidence of demographic events in the genetic structure.
Results: Genetic diversity at SSRs agreed with the putative location of cryptic Pleistocene refugia in Nothofagus. In addition, each species showed different trends for nucleotide diversity at candidate genes. Unbiased heterozygosity significantly correlated with precipitation at EST-SSRs in Nothofagus nervosa. We found evidences of balancing selection and several SNPs departed from neutral expectations.
Conclusions: Nothofagus genetic variability shows a strong imprint of demographic changes that reveals refugia location for the species during Pleistocene. This variability is modelled by environmental conditions across natural gradients, which impose selection pressure at genome regions related to stress response, providing clues about inter-specific differences in adaptive potential to water deficit.Numéro de notice : A2020-032 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s13595-019-0908-x Date de publication en ligne : 10/01/2020 En ligne : https://doi.org/10.1007/s13595-019-0908-x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94489
in Annals of Forest Science > Vol 77 n° 1 (March 2020) . - 17 p.[article]De l’origine des Pins de montagne européens / Renaud Cantegrel in Revue forestière française, vol 71 n° 3 (2019)
[article]
Titre : De l’origine des Pins de montagne européens Type de document : Article/Communication Auteurs : Renaud Cantegrel, Auteur Année de publication : 2019 Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] biodiversité végétale
[Termes IGN] changement climatique
[Termes IGN] ère tertiaire
[Termes IGN] forêt alpestre
[Termes IGN] génétique forestière
[Termes IGN] Pinus mugo subsp. uncinata
[Termes IGN] Pinus mugo Turra
[Termes IGN] Pinus sylvestris
[Termes IGN] taxinomie
[Termes IGN] tourbière
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) Sur la base d’une abondante revue bibliographique, l’auteur ébauche les séquences évolutives des Pins sauvages européens (Pinus sylvestris et Pins de montagne) au cours des dernières périodes du Cénozoïque. Il en déduit la vraisemblance d’une divergence récente entre Pinus uncinata et Pinus mughus, n’excédant pas 3 Ma bp, et ses investigations de terrain le conduisent à différencier les deux espèces autant par leur destinée écogéographique que par leur autécologie. Sous la pression des bouleversements climatiques subis, et particulièrement en réponse aux migrations forcées par les glaciations européennes depuis la fin de l’ère tertiaire, l’introgression entre leurs populations sympatriques génère une série de taxons intermédiaires dont l’ensemble constitue le complexe des Pins de montagne. Le rôle du Pin sylvestre est souligné par son apport génétique décisif dans l’organisation de la biodiversité au sein du complexe spécifique. Numéro de notice : A2020-219 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.4267/2042/70704 En ligne : https://doi.org/10.4267/2042/70704 Format de la ressource électronique : url article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=94913
in Revue forestière française > vol 71 n° 3 (2019)[article]Evidence for slab material under Greenland and links to Cretaceous High Arctic magmatism / Grace E. Shephard in Geophysical research letters, vol 43 n° 8 (28 April 2016)
[article]
Titre : Evidence for slab material under Greenland and links to Cretaceous High Arctic magmatism Type de document : Article/Communication Auteurs : Grace E. Shephard, Auteur ; Raidar G. Tronnes, Auteur ; Wim Spakman, Auteur ; Isabelle Panet , Auteur ; Carmen Gaina, Auteur Année de publication : 2016 Projets : 1-Pas de projet / Article en page(s) : pp 3717 - 3726 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale
[Termes IGN] basalte
[Termes IGN] crétacé
[Termes IGN] gradient de gravitation
[Termes IGN] Groenland
[Termes IGN] manteau terrestreRésumé : (auteur) Understanding the evolution of extinct ocean basins through time and space demands the integration of surface kinematics and mantle dynamics. We explore the existence, origin, and implications of a proposed oceanic slab burial ground under Greenland through a comparison of seismic tomography, slab sinking rates, regional plate reconstructions, and satellite‐derived gravity gradients. Our preferred interpretation stipulates that anomalous, fast seismic velocities at 1000–1600 km depth imaged in independent global tomographic models, coupled with gravity gradient perturbations, represent paleo‐Arctic oceanic slabs that subducted in the Mesozoic. We suggest a novel connection between slab‐related arc mantle and geochemical signatures in some of the tholeiitic and mildly alkaline magmas of the Cretaceous High Arctic Large Igneous Province in the Sverdrup Basin. However, continental crustal contributions are noted in these evolved basaltic rocks. The integration of independent, yet complementary, data sets provides insight into present‐day mantle structure, magmatic events, and relict oceans. Numéro de notice : A2016--193 Affiliation des auteurs : LASTIG LAREG+Ext (2012-mi2018) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1002/2016GL068424 Date de publication en ligne : 19/04/2016 En ligne : https://doi.org/10.1002/2016GL068424 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91845
in Geophysical research letters > vol 43 n° 8 (28 April 2016) . - pp 3717 - 3726[article]Documents numériques
peut être téléchargé
Evidence for slab material under Greenland ... - pdf éditeurAdobe Acrobat PDF Morphotectonic and morphodynamic investigations revealed by isobase surfaces analysis and derived differential mapping using GIS, Teboursouk area, northern Tunisia / Tarek Slama in Earth Science Informatics, vol 8 n° 4 (2015)PermalinkSpectral properties and reflectance curves of the revealed volcanic rocks in Syria using radiometric measurements / M. Rukieh in International Journal of Remote Sensing IJRS, vol 28 n°15-16 (August 2007)PermalinkThe use of GIS in reconstructing the Holocene palaeogeography of the Rhine–Meuse delta, The Netherlands / H.J. Berendsen in International journal of geographical information science IJGIS, vol 21 n° 5 (may 2007)PermalinkApports de l'imagerie spatiale à la résolution des structures géologiques en zone équatoriale: exemples du Précambrien au Kivu (Congo oriental) / M. Villeneuve in Photo interprétation, vol 42 n° 4 (Décembre 2006)PermalinkApplication of stereoscopic satellite images for studying Quaternary tectonics in arid regions / B. Fu in International Journal of Remote Sensing IJRS, vol 25 n° 3 (February 2004)PermalinkHistoire de la Terre / S. Elmi (2002)PermalinkA prehistoric round-up : corralling the cow of the cretaceous / T. Kaye in GPS world, vol 9 n° 3 (March 1998)PermalinkL'empreinte glaciaire dans les Vosges / Marie-Françoise André (1991)PermalinkDelineation of Deccan trap outcrop extensions using satellite remote sensing techniques in Lalitpur district, Uttar-Pradesh, India / J. Krishnamurthy in International Journal of Remote Sensing IJRS, vol 11 n° 2 (February 1990)PermalinkEvidence for phanerozoic reactivation of the Najd fault system in AVHRR, TM, and Spot images of central Arabia / C.G. Andre in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 8 (august 1989)Permalink