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La Réserve biologique intégrale du Mont-Ventoux, un espace d’étude des écosystèmes forestiers hors sylviculture / Jérémy Terracol in Naturae, n° 5 ([29/03/2017])
[article]
Titre : La Réserve biologique intégrale du Mont-Ventoux, un espace d’étude des écosystèmes forestiers hors sylviculture Type de document : Article/Communication Auteurs : Jérémy Terracol, Auteur ; Gilles Blanc, Auteur ; Lilian Micas, Auteur ; Eric Diaz, Auteur ; Gérald Gruhn, Auteur ; Hubert Voiry, Auteur Année de publication : 2017 Article en page(s) : pp 1 - 28 Note générale : bibliographie Langues : Français (fre) Descripteur : [Termes IGN] Abies alba
[Termes IGN] Aves
[Termes IGN] bois mort
[Termes IGN] Coleoptera (ordre)
[Termes IGN] écosystème forestier
[Termes IGN] Fagus sylvatica
[Termes IGN] Fungi
[Termes IGN] peuplement forestier
[Termes IGN] réserve naturelle
[Termes IGN] Ventoux, Mont
[Vedettes matières IGN] Ecologie forestièreRésumé : (auteur) Cet article présente les premiers résultats des inventaires des peuplements forestiers, de l’avifaune nicheuse, des insectes saproxyliques et des champignons (2007-2014). La Réserve biologique intégrale (RBI) du Mont-Ventoux, instituée en 2010, constitue un terrain d’étude privilégié du fait de la variété des milieux qu’elle abrite, à la croisée des influences alpines et méditerranéennes. C’est pourquoi l’Office national des Forêts (ONF) a planifié et appliqué un programme d’études portant sur différents compartiments de la biodiversité parmi lesquels les formations forestières, les Oiseaux, les Coléoptères saproxyliques et les Champignons font l’objet d’un exposé des résultats. L’analyse de l’inventaire des peuplements forestiers fait ressortir la richesse de la RBI en matière de structures forestières ; peuplements très âgés (plus de quatre siècles pour les plus vieux), peuplements récents issus de reboisements et milieux ouverts plus ou moins colonisés sont fortement imbriqués. Cette mosaïque de formations explique l’intérêt écologique du site de la RBI aussi bien en termes de rareté que de diversité des espèces observées que confirment les nombreuses données d’ores et déjà recueillies et traitées. Parmi les espèces les plus rares, on peut citer, entre autres, pour les Oiseaux, la Chouette de Tengmalm (Aegolius funereus (Linnaeus, 1758)) et le Monticole de roche (Monticola saxatilis (Linnaeus, 1758)), pour les Coléoptères, Podeonius acuticornis (Germar, 1824) de la famille des Elateridae Leach, 1815 et Drymochares truquii Mulsant, 1847 de la famille des Cerambycidae Latreille, 1802, et pour les Champignons, Oligoporus hydnoidea G. Gaarder & Ryvarden et Sidera lunata (Romell ex Bourdot & Galzin) K.H. Larsson, deux espèces inconnues jusqu’alors en France. Au-delà d’une meilleure connaissance des différents groupes inventoriés, la présente étude a mis en lumière certaines influences des peuplements forestiers ou des facteurs du milieu sur la diversité spécifique. Il apparaît ainsi que la répartition des populations d’oiseaux est fortement conditionnée par l’altitude et par la présence de grandes étendues asylvatiques. Quant aux Coléoptères saproxyliques et aux Champignons, leur diversité peut être reliée à certaines caractéristiques des peuplements forestiers. Les peuplements de Hêtre (Fagus sylvatica L.) et de Sapin pectiné (Abies alba Mill.), riches en gros bois morts et en gros bois dépérissant, sont très favorables au développement de ces deux groupes. Dans le cas des Champignons, le mélange d’essences et la présence de très gros bois morts (plus de 50 cm de diamètre) constituent des facteurs d’accroissement de la diversité. D’après les volumes de bois mort, la RBI du Mont-Ventoux se trouve actuellement à un seuil entre forêt gérée et forêt subnaturelle. À cette aune, il est vraisemblable que les cortèges d’espèces évolueront dans les décennies à venir, et d’autant plus vite que les changements climatiques, quels qu’ils soient, seront très perceptibles dans ce secteur en limite d’aires biogéographiques. La RBI du Mont-Ventoux doit donc continuer à être un laboratoire pour acquérir, de manière coordonnée, des connaissances sur l’évolution des écosystèmes forestiers laissés hors sylviculture et sur leur fonctionnement. Numéro de notice : A2017-677 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : sans En ligne : https://sciencepress.mnhn.fr/fr/periodiques/naturae/2017/la-reserve-biologique-i [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=87207
in Naturae > n° 5 [29/03/2017] . - pp 1 - 28[article]Terrestrial laser scanning as a tool for assessing tree growth / Jonathan Sheppard in iForest, biogeosciences and forestry, vol 10 n° 1 (February 2017)
[article]
Titre : Terrestrial laser scanning as a tool for assessing tree growth Type de document : Article/Communication Auteurs : Jonathan Sheppard, Auteur ; Christopher D. Morhart, Auteur ; Jan Hackenberg , Auteur ; Heinrich Spiecker, Auteur Année de publication : 2017 Projets : StarTree / Article en page(s) : pp 172 - 179 Note générale : bibliographie
This research was supported by the EU FP7 project “Star-Tree” (Grant no. 311919), by the Federal Ministry of Education and Research of germany (BMBF) within the Sino-German Lin2-Value project (no. 033L049A), and the German Federal Ministry of Food and Agriculture (BMEL) within the project “Agro-Wertholz” (support code 22031112).Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Lasergrammétrie
[Termes IGN] Allemagne
[Termes IGN] allométrie
[Termes IGN] biomasse aérienne
[Termes IGN] croissance des arbres
[Termes IGN] données lidar
[Termes IGN] données localisées 3D
[Termes IGN] modèle mathématique
[Termes IGN] Prunus avium
[Termes IGN] série temporelleRésumé : (auteur) Terrestrial laser scanning (TLS) technology is a powerful tool for assessing tree growth based on time series analysis, as it allows a level of scrutiny not achievable using established destructive techniques. We applied TLS technology to 21 wild cherry trees grown in a research plot near Breisach (southern Germany) in order to build quantitative structure models (QSMs) for each tree. Scans were carried out over three subsequent years (2012-2014), so that three QSMs per each tree were constructed. Using the above approach, we were able to assess the annual growth of the individual wild cherry trees in terms of diameter and height, stem and branch volume, and the merchantable timber fraction. In addition, the growth of single branches of sample trees was detected and quantified. The availability of QSMs based on TLS-derived data allowed the accurate determination of crown length and width, as well as the volume reduction as the result of the tree pruning applied after the first scan (2012). The aboveground biomass (AGB) was assessed for each tree based on the QSM-derived volume and published wood density values for wild cherry, and then compared with AGB values estimated with standard allometric methods, obtaining a very high correlation (r2adj= 0.941). We concluded that the proposed approach is an effective non-destructive technique to accurately assess the increase of tree biomass, and discuss its future application in the forestry sector. Numéro de notice : A2017-890 Affiliation des auteurs : LIF+Ext (2012-2019) Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.3832/ifor2138-009 Date de publication en ligne : 19/11/2016 En ligne : https://doi.org/10.3832/ifor2138-009 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91879
in iForest, biogeosciences and forestry > vol 10 n° 1 (February 2017) . - pp 172 - 179[article]Climatic niche breadth can explain variation in geographical range size of alpine and subalpine plants / Fangyuan Yu in International journal of geographical information science IJGIS, vol 31 n° 1-2 (January - February 2017)
[article]
Titre : Climatic niche breadth can explain variation in geographical range size of alpine and subalpine plants Type de document : Article/Communication Auteurs : Fangyuan Yu, Auteur ; Thomas A. Groen, Auteur ; Tiejun Wang, Auteur ; et al., Auteur Année de publication : 2017 Article en page(s) : pp 190 - 212 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] aire de répartition
[Termes IGN] changement climatique
[Termes IGN] Chine
[Termes IGN] climat de montagne
[Termes IGN] croissance des arbres
[Termes IGN] distribution spatiale
[Termes IGN] entropie maximale
[Termes IGN] région
[Termes IGN] Rhododendron (genre)
[Vedettes matières IGN] Végétation et changement climatiqueRésumé : (auteur) Understanding the environmental factors determining the distribution of species with different range sizes can provide valuable insights for evolutionary ecology and conservation biology in the face of expected climate change. However, little is known about what determines the variation in geographical and elevational ranges of alpine and subalpine plant species. Here, we examined the relationship between geographical and elevational range sizes for 80 endemic rhododendron species in China using Spearman’s rank-order correlation. We ran the species distribution model – maximum entropy modelling (MaxEnt) – with 27 environmental variables. The importance of each variable to the model prediction was compared for species groups with different geographical and elevational range sizes. Our results showed that the correlation between geographical and elevational range sizes of rhododendron species was not significant. Climate-related variables were found to be the most important factors in shaping the distributional ranges of alpine and subalpine plant species across China. Species with geographically and elevationally narrow ranges had distinct niche requirements. For geographical ranges, the narrow-ranged species showed less tolerance to niche conditions than the wide-ranged species. For elevational ranges, compared with the wide-ranged species, the narrow-ranged species showed an equivalent niche breadth, but occurred at different niche position along the environmental gradient. Our findings suggest that over large spatial extents the elevational range size can be a complementary trait of alpine and subalpine plant species to geographical range size. Climatic niche breadth, especially the range of seasonal variability, can explain species’ geographical range sizes. Changes in climate may influence the distribution of rhododendrons, with the effects likely being felt most by species with either a narrow geographical or narrow elevational range. Numéro de notice : A2017-031 Affiliation des auteurs : non IGN Thématique : FORET/MATHEMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/13658816.2016.1195502 En ligne : http://dx.doi.org/10.1080/13658816.2016.1195502 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=84024
in International journal of geographical information science IJGIS > vol 31 n° 1-2 (January - February 2017) . - pp 190 - 212[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 079-2017011 RAB Revue Centre de documentation En réserve L003 Disponible 079-2017012 RAB Revue Centre de documentation En réserve L003 Disponible Estimation of ash mortality induced by Hymenoscyphus fraxineus in France and Belgium / Benoît Marçais in Baltic forestry, vol 23 n° 1 ([01/01/2017])
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Titre : Estimation of ash mortality induced by Hymenoscyphus fraxineus in France and Belgium Type de document : Article/Communication Auteurs : Benoît Marçais, Auteur ; Claude Husson, Auteur ; Olivier Caël, Auteur ; Arnaud Dowkiw, Auteur Année de publication : 2017 Article en page(s) : pp 159 - 167 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Termes IGN] arbre mort
[Termes IGN] Belgique
[Termes IGN] diamètre à hauteur de poitrine
[Termes IGN] foresterie
[Termes IGN] France (administrative)
[Termes IGN] Fraxinus angustifolia
[Termes IGN] Fraxinus excelsior
[Termes IGN] Fungi
[Termes IGN] maladie phytosanitaire
[Termes IGN] mortalité
[Vedettes matières IGN] SylvicultureRésumé : (auteur) Ash dieback induced by Hymenoscyphus fraxineus has emerged as one of the most serious health problem for European forests in the last ten years. However, precise estimation of the mortality induced by the pathogen is still scarce and this hampers management of affected stands. In this work, we used data of several surveys done since 2010 in France and Belgium to estimate the mortality rate associated with ash decline depending on the time of the pathogen presence in the area; for that a 2 steps procedure was used. First, we did an estimation of the frequency and severity of collar lesions associated with H. fraxineus depending on the length of the pathogen presence and for 2 trees size classes (lower or higher than 25 cm dbh). Then the annual mortality rate was estimated depending on collar lesion severity, dbh class (lower or higher than 25 cm) and time since pathogen presence. The global mortality induced by H. fraxineus was computed from those 2 types of data by a bootstrap approach. Additionally one survey observing young stands was used from which mortality was computed directly. We find that if mortality is drastic in very young ash stand affected by H. fraxineus (less than 5 cm dbh), with annual mortality reaching 35% 5-6 years after arrival of the pathogen in the stand, it is much more moderate for trees with dbh above 25 cm, with annual mortality reaching 3.2% after 8-9 years of pathogen presence. Annual mortality rates are intermediate for trees in the 5-25 cm dbh class and reached 10-11% after 8-9 years of pathogen presence. Numéro de notice : A2017-901 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : sans En ligne : https://balticforestry.lammc.lt/bf/PDF_Articles/2017-23%5B1%5D/Baltic%20Forestry [...] Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93360
in Baltic forestry > vol 23 n° 1 [01/01/2017] . - pp 159 - 167[article]Dynamics of fungal community composition, decomposition and resulting deadwood properties in logs of Fagus sylvatica, Picea abies and Pinus sylvestris / Tobias Arnstadt in Forest ecology and management, vol 382 (15 December 2016)
[article]
Titre : Dynamics of fungal community composition, decomposition and resulting deadwood properties in logs of Fagus sylvatica, Picea abies and Pinus sylvestris Type de document : Article/Communication Auteurs : Tobias Arnstadt, Auteur ; Björn Hoppe, Auteur ; Harald Kellner, Auteur ; et al., Auteur Année de publication : 2016 Article en page(s) : pp 129 - 142 Langues : Anglais (eng) Descripteur : [Termes IGN] Allemagne
[Termes IGN] bois mort
[Termes IGN] Fagus sylvatica
[Termes IGN] Fungi
[Termes IGN] habitat d'espèce
[Termes IGN] habitat forestier
[Termes IGN] lignine
[Termes IGN] Picea abies
[Termes IGN] Pinus sylvestris
[Termes IGN] richesse floristique
[Vedettes matières IGN] Ecologie forestièreRésumé : (auteur) In forest ecosystems, deadwood is an important component that provides habitat and contributes to nutrient cycles, as well as to carbon and water storage. The change of wood constituents, nutrients and microbial species richness in the field over the whole time of decomposition has only rarely been studied, in particular not in relation to oxidative enzyme activities (mediating lignin degradation) and different forest management regimes.
To describe wood decomposition, we selected coarse woody debris (CWD) in form of 197 logs of Fagus sylvatica, Picea abies and Pinus sylvestris in forests with different management regimes across three regions in Germany. They were sampled and analyzed for wood density, water content, wood constituents (Klason and acid-soluble lignin, organic extractives, water-soluble lignin fragments), carbon, nitrogen and metals (Al, Ca, Cu, K, Mg, Mn and Zn). Furthermore, the activities of oxidative enzymes like laccase, manganese peroxidase, and general peroxidase were measured. Since filamentous fungi (Basidiomycota, Ascomycota) are the major biological agents of wood decomposition, fungal species richness based on sporocarps and molecular fingerprints was recorded.
Higher forest management intensity had a negative effect on deadwood volume and in consequence on fungal species richness (sporocarps), but hardly to other analyzed variables. Furthermore, there were significant differences between the tree species for the concentrations of wood constituents and most nutrients as well as the activities of oxidative enzymes, although their course during decomposition was mostly similar among the tree species. We found that molecular species richness increased with the period of decomposition in contrast to the number of fruiting species, which was highest in the intermediate stage of decomposition. Both types of species richness increased with increasing volume of the CWD logs. Regarding the entire period of decomposition, white-rot fungi (WRF), based on identification of sporocarps, were the most abundant group of wood-decaying fungi in all three tree species. This corresponds well with the overall presence of laccase and peroxidases and the concomitant substantial loss of lignin, which points to the importance of these enzymes in deadwood decomposition. We found a continuous decomposition and decline of volume-related concentrations in wood constituents and nutrients with time of decomposition. Contrary to volume-related concentrations, the concentrations related to dry mass frequently increased.Numéro de notice : A2016-765 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : 10.1016/j.foreco.2016.10.004 En ligne : http://dx.doi.org/10.1016/j.foreco.2016.10.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=82401
in Forest ecology and management > vol 382 (15 December 2016) . - pp 129 - 142[article]Mapping individual tree health using full-waveform airborne laser scans and imaging spectroscopy: A case study for a floodplain eucalypt forest / Iurii Shendryk in Remote sensing of environment, vol 187 (15 December 2016)PermalinkTree diversity effect on dominant height in temperate forest / Patrick Vallet in Forest ecology and management, vol 381 (1 December 2016)PermalinkQuantifying early-seral forest composition with remote sensing / Rayma A Cooley in Photogrammetric Engineering & Remote Sensing, PERS, vol 82 n° 11 (November 2016)PermalinkNatural regeneration of Pinus pinaster and Eucalyptus globulus from plantation into adjacent natural habitats / Patricia Fernandes in Forest ecology and management, vol 378 (15 October 2016)PermalinkAccuracy of tree geometric parameters depending on the LiDAR data density / Edyta Hadas in European journal of remote sensing, vol 49 n° 1 (2016)PermalinkAutomatic segment-level tree species recognition using high resolution aerial winter imagery / Anton Kuzmin in European journal of remote sensing, vol 49 n° 1 (2016)PermalinkL’écocomplexe de Païolive en Ardèche méridionale (France) : un pic de biodiversité du hotspot méditerranéen / Patrick Blandin in Ecologia mediterranea, vol 42 n° 2 (2016)PermalinkEstimating forest species abundance through linear unmixing of CHRIS/PROBA imagery / S. Stagakis in ISPRS Journal of photogrammetry and remote sensing, vol 119 (September 2016)PermalinkRetrieval of leaf area index in different plant species using thermal hyperspectral data / Elnaz Neinavaz in ISPRS Journal of photogrammetry and remote sensing, vol 119 (September 2016)PermalinkTesting the applicability of BIOME-BGC to simulate beech gross primary production in Europe using a new continental weather dataset / Marta Chiesi in Annals of Forest Science, vol 73 n° 3 (September 2016)PermalinkThe impact of integrating WorldView-2 sensor and environmental variables in estimating plantation forest species aboveground biomass and carbon stocks in uMgeni Catchment, South Africa / Timothy Dube in ISPRS Journal of photogrammetry and remote sensing, vol 119 (September 2016)PermalinkWithin-stem maps of wood density and water content for characterization of species: a case study on three hardwood and two softwood species / Fleur Longuetaud in Annals of Forest Science, vol 73 n° 3 (September 2016)PermalinkSilvicultural climatic turning point for European beech and sessile oak in Western Europe derived from national forest inventories / Klara Dolos in Forest ecology and management, vol 373 (1 August 2016)PermalinkLong-term vegetation dynamics and land-use history: Providing a baseline for conservation strategies in protected Alnus glutinosa swamp woodlands / Brith Natlandsmyr in Forest ecology and management, vol 372 (15 July 2016)PermalinkDetermining forest degradation, ecosystem state and resilience using a standard stand stocking measurement diagram: theory into practice / Carlos Bahamondez in Forestry, an international journal of forest research, vol 89 n° 3 (July 2016)PermalinkCork oak pests: a review of insect damage and management / Riziero Tiberi in Annals of Forest Science, vol 73 n° 2 (June 2016)PermalinkEffects of experimental warming on soil respiration and biomass in Quercus variabilis Blume and Pinus densiflora Sieb. et Zucc. seedlings / Nam Jin Noh in Annals of Forest Science, vol 73 n° 2 (June 2016)PermalinkForest vegetation in western Romania in relation to climate variables: Does community composition reflect modelled tree species distribution? / S. Heinrichs in Annals of forest research, vol 59 n° 2 (July - December 2016)PermalinkTree species identity mediates mechanisms of top soil carbon sequestration in a Norway spruce and European beech mixed forest / Enrique Andivia in Annals of Forest Science, vol 73 n° 2 (June 2016)PermalinkTwo new montane grassland communities from the SE Alps (N Slovenia) / Igor Dakskobler in Hacquetia, vol 15 n° 1 (June 2016)Permalink