{"id":451,"date":"2014-08-05T15:54:39","date_gmt":"2014-08-05T13:54:39","guid":{"rendered":"http:\/\/ist.blogs.inra.fr\/afs\/?p=451"},"modified":"2014-08-05T16:20:10","modified_gmt":"2014-08-05T14:20:10","slug":"vulnerability-to-forest-decline-in-a-context-of-climate-changes-new-prospects-about-an-old-question-in-forest-ecology","status":"publish","type":"post","link":"https:\/\/ist.blogs.inrae.fr\/afs\/2014\/08\/05\/vulnerability-to-forest-decline-in-a-context-of-climate-changes-new-prospects-about-an-old-question-in-forest-ecology\/","title":{"rendered":"VULNERABILITY TO FOREST DECLINE IN A CONTEXT OF CLIMATE CHANGES: NEW PROSPECTS ABOUT AN OLD QUESTION IN FOREST ECOLOGY"},"content":{"rendered":"<script type='text\/javascript' src='https:\/\/d1bxh8uas1mnw7.cloudfront.net\/assets\/embed.js'><\/script><h5>Nathalie BR\u0090\u00c9DA, Marianne PEIFFER<\/h5>\n<address>INRA, UMR 1137 \u00c9cologie et \u00c9cophysiologie Foresti\u00e8res, 54280 Champenoux, France<br \/>\nUniversit\u00e9 de Lorraine, UMR 1137 \u00c9cologie et \u00c9cophysiologie Foresti\u00e8res, BP 239, F-54506 Vand\u0153uvre-les-Nancy, France<\/address>\n<p><!--more--><\/p>\n<p>Free access to the content below. <a href=\"http:\/\/link.springer.com\/article\/10.1007\/s13595-014-0411-3\">Visit the Annals of Forest Science Web site to download the paper.\u00a0<\/a><\/p>\n<h5><span style=\"color: #808000\"><a href=\"https:\/\/ist.blogs.inra.fr\/afs\/wp-content\/uploads\/sites\/5\/2014\/08\/photoPeifferD\u00e9p\u00e9MontVentoux.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignleft wp-image-511 size-thumbnail\" src=\"https:\/\/ist.blogs.inra.fr\/afs\/wp-content\/uploads\/sites\/5\/2014\/08\/photoPeifferD\u00e9p\u00e9MontVentoux-150x150.jpg\" alt=\"photoPeifferD\u00e9p\u00e9MontVentoux\" width=\"150\" height=\"150\" srcset=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2014\/08\/photoPeifferD\u00e9p\u00e9MontVentoux-150x150.jpg 150w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2014\/08\/photoPeifferD\u00e9p\u00e9MontVentoux-50x50.jpg 50w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>1 Why focus on vulnerability?<\/span><\/h5>\n<p style=\"text-align: justify\">Forest research has been particularly efficient in detecting the impacts of variability and long-term trends of climate. It is indeed in these ecosystems gathering perennial plants with a long lifespan that the first visible impacts of climate change have been convincingly documented. At first, positive changes in productivity were detected (<span style=\"color: #999999\">Becker 1989; Becker et al.1994; Badeau et al.1995 Badeau et al.1996<\/span>). Improved growth conditions linked to warming, to nitrogen deposition and to increased atmospheric CO2 were perceived fairly early and were also heterogeneous among biogeographical areas due to local limiting factors (trophic or climatic). The first thoughts about the Dryade project were initiated during 2006. In France, the first simulations of potential impacts of available climate scenarios generated awareness, criticism and concerns among managers and foresters (Carbofor, <span style=\"color: #999999\">Loustau et al. 2005; Badeau et al. 2010<\/span>). In addition to climate trends, extreme events had already been identified as a major cause of forest dieback. All major drought events were historically followed by cycles of dieback (<span style=\"color: #999999\">Innes et al. 1989; Jonesetal. 1993; Landmann 1994; Beniston and Innes 1998; Thomas et al. 2002; Liang et al. 2003; Jurskis 2005<\/span>). In France, forest dysfunctions induced by the drought events of 2003-2006 were mostly reversible (growth decrease, temporary degradation of crown conditions) but sometimes also irreversible (tree mortality). Several indicators of forest health surveys pointed to a degradation of forest health in France and Europe: abnormal increases in tree mortality (<span style=\"color: #999999\">Pauly and Belrose 2005<\/span>), decline of crown conditions (<span style=\"color: #999999\">Lloret et al. 2004; Pauly and Belrose 2005; Belrose et al. 2004, 2006; Carnicer et al. 2011<\/span>) and upsurge in biotic hazards (<span style=\"color: #999999\">Nageleisen 2004; Piou et al. 2006; Rouault et al. 2006<\/span>).<\/p>\n<h5><span style=\"color: #808000\">2 Need for common language<\/span><\/h5>\n<p style=\"text-align: justify\">When the Dryade project started, the vulnerability concept was not yet fully appropriated by the research community in ecology. No measurement of the vulnerability of ecosystems to climate change was yet established. Generic concepts in ecology like the ecosystem resilience to disturbances (<span style=\"color: #999999\">Holling 1986; Manion 1991, 2003; Jurskis 2005<\/span>) and of concepts in geography and natural hazards (<span style=\"color: #999999\">Briguglio 2004; Eriksen and Kelly 2007<\/span>) have been debated. Several papers published concomitantly with the Dryade program (<span style=\"color: #999999\">Bodin and Wiman 2007; Williams et al. 2008<\/span>) allowed us to define the concepts underlying the research approach developed during Dryade. Vulnerability refers to the propensity or predisposition to be adversely affected by the effects of climate change, including climate variability and extreme weather events. Vulnerability encompasses a variety of concepts including sensitivity or susceptibility to harm and lack of capacity to cope and adapt (<span style=\"color: #999999\">IPCC 2014<\/span>). In our perspective, the IPCC\u2019s definition was applied to forest ecosystems. Vulnerability is a relative notion (<span style=\"color: #999999\">Fussel 2007<\/span>) that should be fully qualified according to (1) the attribute of concern (in our forest context for example, biodiversity, productivity, regeneration, mortality and decline) and (2) a temporal reference (past, current, future, dynamic i.e. immediate or delayed, multiannual or long term).<\/p>\n<h5><span style=\"color: #808000\">3 Research methods<\/span><\/h5>\n<p style=\"text-align: justify\">Unlike what is sometimes claimed, the most vulnerable forest ecosystems are not necessarily mountain or Mediterranean forests, or forests with species at the margin of their distribution. The Dryade consortium investigated cases of forest dieback in the core of the production area in France for Douglas fir, beech or temperate oaks. Dryade mainly focussed on consequences of pulse disturbances like the 2003 heat and drought event and less on press disturbance like chronic acidification or temperature increase. Nevertheless, long-term trends were investigated with a retrospective approach using dendrochronological approaches. Parallel to Dryade (<span style=\"color: #999999\">Br\u00e9da 2013<\/span>), other projects focussed on modelling potential impacts on agro- and ecosystems using scenarios of future climate (CLIMATOR, ANR-06-VULN-014, QDIV, ANR-05- BDIV-009-01, GICC FAST) or ecosystem manipulation to simulate drought events (DROUGHT+, ANR-06-VULN-003). Brief summaries of these projects may be found in <span style=\"color: #999999\">Granier (2013), Rambal (2013), Durand (2013) and Cheaib et al. (2012)<\/span>. Dryade concentrated on realized and direct impacts of acute drought stress, sometimes in interaction with insect or pest disturbances. Different approaches were mobilized to disentangle, identify and rank the determinants of vulnerability. The realized impacts from a natural hazard, of a given intensity, were quantified for several forest attributes of concern. Three types of attributes were investigated: tree health, radial growth and mortality (<span style=\"color: #999999\">Dobbertin 2005<\/span>). The realized <span style=\"color: #808000\">impacts were quantified<\/span> <span style=\"color: #808000\">through<\/span> <strong><span style=\"color: #808000\">(i)<\/span><\/strong> <span style=\"color: #808000\">radial growth or productivity loss<\/span> in reference to norms or to trees not exposed to the hazard or <strong><span style=\"color: #808000\">(ii)<\/span><\/strong> <span style=\"color: #808000\">crown condition<\/span> visually assessed as compared to a reference tree (dead branches, foliar loss and crown transparency). The database from the French Forest Health Department (<a href=\"http:\/\/agriculture.gouv.fr\/suivi-de-la-sante-des-forets\">http:\/\/agriculture.gouv.fr\/suivi-de-la-sante-des-forets<\/a>) was analysed to quantify and localize biotic hazards (pests and diseases) and their impact on forest decline. Growth response functions to climate and drought (quantified from soil water content derived from water balance models) were assessed for radial growth, tree ring texture or wood micro-density. Pairs of living and dead trees or healthy and declining trees were used to identify the traits describing individual vulnerability within stands and forests.<\/p>\n<p style=\"text-align: justify\"><span style=\"color: #808000\">Identifying the determinants of the vulnerability<\/span> of ecosystems implies to <strong><span style=\"color: #808000\">(1)<\/span><\/strong> <span style=\"color: #808000\">identify the disturbance<\/span> (climatic event, pest, disease or their interaction); <strong><span style=\"color: #808000\">(2)<\/span> <\/strong><span style=\"color: #808000\">quantify its intensity\/ severity<\/span> and<strong><span style=\"color: #808000\"> (3)<\/span><\/strong> <span style=\"color: #808000\">focus on the impacts of past hazards<\/span> in the same forests. For instance, thanks to dendrochronology and retrospective water balance modelling, we quantified the incidence of soil water deficits and other biotic events prior to the 2003 extreme event. Then, the extent to which past events interacted with the actual vulnerability of trees to extreme drought damage was taken into account (<span style=\"color: #999999\">Beniston and Innes 1998<\/span>). Indeed, we compared the response to recent hazard and to earlier drought events with similar intensity; we were able to demonstrate that the vulnerability to hazards increases with tree ageing.<\/p>\n<h5><span style=\"color: #808000\">4 Dryade\u2019s outputs and deliverables<\/span><\/h5>\n<h6 style=\"text-align: justify\"><a href=\"https:\/\/ist.blogs.inra.fr\/afs\/wp-content\/uploads\/sites\/5\/2014\/08\/Br\u00e9da-peiff2014.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-497\" src=\"https:\/\/ist.blogs.inra.fr\/afs\/wp-content\/uploads\/sites\/5\/2014\/08\/Br\u00e9da-peiff2014.jpg\" alt=\"Br\u00e9da-peiff2014\" width=\"600\" height=\"450\" srcset=\"https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2014\/08\/Br\u00e9da-peiff2014.jpg 960w, https:\/\/ist.blogs.inrae.fr\/afs\/wp-content\/uploads\/sites\/5\/2014\/08\/Br\u00e9da-peiff2014-300x225.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a>Fig.1 Scheme of how exposure to climatic or biotic hazard of vulnerable forest stands and trees could result a risk of forest dieback, in most cases with a complex aetiology. Adapted from the core concepts of SREX report (<a href=\"https:\/\/www.ipcc.ch\/pdf\/special-reports\/srex\/SREX_Full_Report.pdf\">IPCC 2012<\/a>). Several components of vulnerability have been investigated in the Dryade project. Impacts on growth, health status and mortality were analysed to disentangle hazards, exposure and determinants of vulnerability. The papers gathered in this special issue are identified in the figure according to the main component(s) of risk addressed.\u2776: Cailleret et al. 2014, \u2777: Durand-Gillmann et al. 2014, \u2778: G\u00e9rard and Br\u00e9da 2014, \u2779: Mar\u00e7ais and Desprez-Loustau 2014, \u277a: Nourtier et al. 2014, \u277b: Sergent et al. 2014a, \u277c: Sergent et al. 2014b<\/h6>\n<p style=\"text-align: justify\">To synthesize what was done, we adapted the core concepts described in the Special Report on Managing the Risks of Extreme Events and Disasters to Advance Climate Change Adaptation (SREX, <a href=\"https:\/\/www.ipcc.ch\/pdf\/special-reports\/srex\/SREX_Full_Report.pdf\">IPCC 2012<\/a>) to assess the risks of forest decline. The severity of adverse impacts of climate extremes (water deficit or excess) or biotic hazard depends on the severity of the extreme, on the exposure and on the vulnerability to the extreme (Fig. 1). We used here the SREX scheme to present the different papers collected in this special issue of Annals of Forest Sciences. <span style=\"color: #808000\">Four components of vulnerability were investigated<\/span>: <span style=\"color: #808000\">(i)<\/span> <span style=\"color: #808000\">ecology<\/span> \u2013 soil properties like extractable water, soil resistivity, topography and site fertility (<span style=\"color: #999999\">Cailleret et al. 2014; Nourtier et al. 2014; Sergent et al. 2014b<\/span>); <span style=\"color: #808000\">(ii)<\/span> <span style=\"color: #808000\">tree ecophysiology<\/span> \u2013 sap flux and its radial distribution as a function of changing water fluxes (<span style=\"color: #999999\">Nourtier et al. 2014<\/span>), carbon economy and radial distribution of carbohydrates in stems (<span style=\"color: #999999\">G\u00e9rard and Br\u00e9da 2014<\/span>); <span style=\"color: #808000\">(iii)<\/span> <span style=\"color: #808000\">genetic diversity<\/span> \u2014 among provenances (<span style=\"color: #999999\">Sergent et al. 2014a<\/span>) or species (<span style=\"color: #999999\">Mar\u00e7ais and Desprez-Loustau 2014<\/span>) and <span style=\"color: #808000\">(iv)<\/span> <span style=\"color: #808000\">silviculture<\/span> (<span style=\"color: #999999\">Durand-Gillmann et al. 2014 ; Sergent et al. 2014b<\/span>) \u2014 management, tree age and stand density. Main climatic events taken into account include periods of soil water deficit with their duration, intensity, date of occurrence and recurrence; this enabled us to assess the exposure of trees to water shortage taking into account local soil properties and stand properties (<span style=\"color: #999999\">Nourtier et al. 2014 ; Sergent et al. 2014b<\/span>). The risk components addressed in each paper from this special issue are indicated in Fig. 1 .<\/p>\n<p style=\"text-align: justify\">Drought episodes during 2003-2006 were the driving factor of tree growth decrease, health decline and mortality for most of the species x regions studied cases. The repetition of drought episodes was more prejudicial than the absolute intensity and length of the 2003 extreme event itself. It induced a persistent growth decrease, a lack of recovery and even death of some individuals. Soil constraints to rooting, low water availability or low resistivity, delayed or inadequate thinning, tree age and sometimes nutrient availability were identified as the main vulnerability factors at stand level. At tree level, the vulnerability was related to species, provenance, and tree status and growth performance during juvenile growth or during years preceding the extreme event. Individual vulnerability was assessed using sapwood width, radial growth and wood micro-density.<\/p>\n<p style=\"text-align: justify\">In the context of an increase of the occurrence of episodes of extreme water deficit, our findings suggest that the best performing trees were the most vulnerable to extreme drought events. Then, the following question was: which tradeoffs between growth performance and sustainability are the most appropriate to cope with extreme events? Taking into account the long term, because growth performance in the young age seemed to be an indicator of higher vulnerability at maturity, appeared essential in this reflection. Carbon allocation strategies among functions (growth, development reserves, fruiting) and among tree compartments (balance between above- and below-ground biomass) were also prospected as functional causes of vulnerability. Should the decline be regarded as a selective force directed against the best performing trees (<span style=\"color: #999999\">Guttschick and BassiriRad 2003<\/span>)? If this was the case, the basics for a silviculture favouring the trees with the highest growth rate would be seriously challenged.<\/p>\n<p style=\"text-align: justify\">Our findings also confirmed the challenging need for progress in describing and recording dieback events of dieback. The networks of the national inventory and of forest health monitoring were invaluable for our research. Their maintenance in the long-term needs more than ever be guaranteed. But at the management level, the registration of phenomena is heterogeneous, partial and difficult to mobilize. We recommend formalizing this work through enhanced monitoring, memory of abnormal phenomena in support of future research work. This record should be regarded as an action towards adaptive management (<span style=\"color: #999999\">Spittlehouse 2005<\/span>). In a context of uncertainty about future climate and biotic disturbances, our results open up avenues to reduce the risk of dieback by management actions and selection of suitable tree species or provenances or silvicultural scheme, to both reduce the vulnerability of future stands and mitigate the intensity of water deficits. A variety of management options needs to be imagined right now in every situation recognized as vulnerable to improve the resilience of ecosystems and secure their long-term management (<span style=\"color: #999999\">Bodin and Wiman 2007<\/span>). To cope with adverse impacts of hazards especially in the most vulnerable situations, adaptive management by anticipation, consisting in forest renewal with species more drought resistant, seems preferable to reactive adaptation, namely crisis management of forest decline when they happen.<\/p>\n<h6>Funding<\/h6>\n<p style=\"text-align: justify\">This work was funded by the ANR program Dryade <em>(ANR-06-VULN-004)<\/em>. \u201c Dryade: Vulnerability of forests to climate change: the tree bioclimatic areas \u201d was a research project with a finalized vocation. It involved seven research units (UMR 1137 EEF, Nancy; UMR 1136 IAM, Nancy; UR 629 URFM, Avignon; UMR 1114 EMMAH, Avignon; UMR 1202 BIOGECO, Bordeaux; UR588 AGPF Orl\u00e9ans; EA LBLGC, Orl\u00e9ans), as well as the Institute for Forest Development (IDF), the National Forest Office (ONF), the National Forest Inventory (IFN, currently IGN) and the Department of Forest Health (DSF). The project started during January 2007 for 48 months.<\/p>\n<h6>References<\/h6>\n<p style=\"text-align: justify\">Badeau V, Dupouey JL, Becker M, Picard JF (1995) Long-term growth trends of Fagus sylvatica L. in northeastern France. A comparison between high and low density stands. Acta Oecol 16:571 \u2013 583<\/p>\n<p style=\"text-align: justify\">Badeau V, Becker M, Bert GD, Dupouey JL, Lebourgeois F, Picard JF (1996) Long-term growth trends of trees: ten years of dendrochronological studies in France. In: Spiecker H, Mielik\u00e4ienen K, K\u00f6hl M, Skovsgaard JP(eds) Growth trends ineuropeanforests.Springer, Berlin, pp 167 \u2013 181<\/p>\n<p style=\"text-align: justify\">Badeau V, Dupouey JL, Cluzeau C, Drapier J, Le Bas C (2010) Climate change and the biogeography of French tree species: first results and perspectives. In: Forest, Carbon Cycle and Climate Change, D. Loustau (Ed.), QUAE, ISBN 978-2-7592-0384-0, 231-252.<\/p>\n<p style=\"text-align: justify\">Becker M (1989) The role of climate on present and past vitality of silver fir forests in the Vosges Mountains of northeastern France. Can J Forest Res 19:1110 \u2013 1117<\/p>\n<p style=\"text-align: justify\">Becker M, Bert GD, Bouchon J, Picard JF, Ulrich E (1994) Tendances \u00e0 long terme observ\u00e9es dans la croissance de divers feuillus et r\u00e9sineux du Nord-est de la France depuis le milieu du XIX si\u00e8cle. Rev For Fr XLVI:335 \u2013 341<\/p>\n<p style=\"text-align: justify\">Belrose V, Nageleisen L-M, Renaud J-P (2004) Les cons\u00e9quences de la canicule et de la s\u00e9cheresse de 2003 : bilan \u00e0 la fin de l\u2019ann\u00e9e 2003. <a href=\"http:\/\/agriculture.gouv.fr\/IM%20G\/pdf\/25_canicule_secheresse_%20cle01e565.pdf\">http:\/\/agriculture.gouv.fr\/IM G\/pdf\/25_canicule_secheresse_ cle01e565.pdf<\/a>. Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Belrose V, Pauly H, Nageleisen L-M, Br\u00e9da N (2006) Cons\u00e9quences visibles de l \u2019 \u00e9t\u00e9 2003 sur les for\u00eats : des r\u00e9actions imm\u00e9diates contrast\u00e9es, des incertitudes sur les cons\u00e9quences \u00e0 long terme. RDV techniques n\u00b0 11 &#8211; hiver 2006 \u2013 ONF, 24-27.<a href=\"http:\/\/www.onf.fr\/lire_voir_ecouter\/++oid++925\/@@display_media.html\"> http:\/\/www.onf. fr\/lire_voir_ecouter\/++oid++ 925\/@@display_media.html<\/a> . Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Beniston M, Innes JL (1998) Impacts of climatic variability and extreme on forets: synthesis. The impacts of climate variability on forests. Lect Notes Earth Sci 74:309 \u2013 318. doi: <a href=\"http:\/\/link.springer.com\/book\/10.1007%2FBFb0009761\">10.1007\/BFb0009761<\/a><\/p>\n<p style=\"text-align: justify\">Bodin P, Wiman BLB (2007) The usefulness of stability concepts in forest management when coping with increasing climate uncertainties. Forest Ecol Manag 242:541 \u2013 552. doi: <a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0378112707000977\">10.1016\/j.foreco. 2007.01.066<\/a><\/p>\n<p style=\"text-align: justify\">Br\u00e9da N (2013) Dryade &#8211; Comprendre la vuln\u00e9rabilit\u00e9 des for\u00eats aux al\u00e9as climatiques et biotiques. Environnement et Changements Globaux : des al\u00e9as \u00e0 la vuln\u00e9rabilit\u00e9 des soci\u00e9t\u00e9s &#8211; cahier ANR n\u00b07 &#8211; avril 2013, p 135. <a href=\"http:\/\/www.agence-nationale-recherche.fr\/suivi-bilan\/consulter\/environnement-et-changements-globaux-des-aleas-a-la-vulnerabilite-des-societes-cahier-anr-n7-avril-2013\/\">http:\/\/www.agence-nationale-recherche.fr\/suivi-bilan\/consulter\/environnement-et-changements-globaux-des-aleas-a-la-vulnerabilite-des-societes-cahier-anr-n7-avril-2013<\/a> . Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Briguglio L (2004) Economic vulnerability and resilience: concepts and measurements. In: Briguglio L, Kisanga EJ (eds) Economic vulnerability and resilience of small states. Islands and Small States Institute and London: Commonwealth Secretariat, Malta<\/p>\n<p style=\"text-align: justify\">Cailleret M, Nourtier M, Amm A, Durand-Gillmann M, Davi H (2014) Drought-induced decline and mortality of silver fir differ among three sites in Southern France. Ann For Sci (this issue). doi: <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs13595-013-0265-0\">10.1007\/ s13595-013-0265-0<\/a><\/p>\n<p style=\"text-align: justify\">Carnicer J, Coll M, Ninyerola M, Pons X, S\u00e1nchez G, Pe\u00f1uelas J (2011) Widespread crown condition decline, food web disruption, and am- plified tree mortality with incr eased climate change-type drought. Proc Natl Acad Sci U S A 108:1474 \u2013 1478. doi: <a href=\"http:\/\/www.pnas.org\/content\/108\/4\/1474\">10.1073\/pnas. 1010070108<\/a><\/p>\n<p style=\"text-align: justify\">Cheaib A, Badeau V, Boe J, Chuine I, Delire C, Dufr\u00eane E, Fran\u00e7ois C, Gritti ES, Legay M, Pag\u00e9 C, Thuiller W, Viovy N, Leadley P (2012) Climate change impacts on tree ranges: model intercomparison facilitates understanding and quantification of uncertainty. Ecol Lett 15:533 \u2013 544. doi: <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1461-0248.2012.01764.x\/abstract;jsessionid=347E09E59A54AED6FB694E68D3CF4A16.f01t01?systemMessage=Wiley+Online+Library+will+be+disrupted+9th+Aug+from+10-2+BST+for+essential+maintenance.+Pay+Per+View+will+be+unavailable+from+10-6+BST.\">10.1111\/j.1461-0248.2012.01764.x<\/a><\/p>\n<p style=\"text-align: justify\">Dobbertin M (2005) Tree growth as indicator of tree vitality and of tree reaction to environmental stress: a review. Eur J Forest Res 124: 319 \u2013 333. doi: <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs10342-006-0110-1\">10.1007\/s10342-006-0110-1<\/a><\/p>\n<p style=\"text-align: justify\">Durand JL (2013) CLIMATOR L\u2019impact du changement climatique sur les syst\u00e8mes de culture et naturels repr\u00e9sentatifs de la France. Environnement et Changements Globaux : des al\u00e9as \u00e0 la vuln\u00e9rabilit\u00e9 des soci\u00e9t\u00e9s &#8211; cahier ANR n\u00b07 &#8211; avril 2013, p 141. <a href=\"http:\/\/www.agence-nationale-recherche.fr\/suivi-bilan\/consulter\/environnement-et-changements-globaux-des-aleas-a-la-vulnerabilite-des-societes-cahier-anr-n7-avril-2013\/\">http:\/\/www.agence-nationale-recherche.fr\/suivi-bilan\/consulter\/environnement-et-changements-globaux-des-aleas-a-la-vulnerabilite-des-societes-cahier-anr-n7-avril-2013<\/a>. Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Durand-Gillmann M, Cailleret M, Boivin T, Nageleisen LM, Davi H (2014) Individual vulnerability of Silver fir (<em>Abies alba<\/em> Mill.) to parasitism by two contrasting biotic agents: mistletoe (<em>Viscum album<\/em> L. ssp. abietis) and bark beetles (Coleoptera: Curculionidae: Scolytinae) during a decline process. Ann For Sci (this issue). doi: <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs13595-012-0251-y\">10.1007\/s13595-012-0251-y<\/a><\/p>\n<p style=\"text-align: justify\">Eriksen SH, Kelly PM (2007) Developing credible vulnerability indica- tors for climate adaptation policy assessment. Mitig Adapt Strateg Glob Chang 12:495 \u2013 524. doi: <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs11027-006-3460-6\">10.1007\/s11027-006-3460-6<\/a><\/p>\n<p style=\"text-align: justify\">Fussel HM (2007) Vulnerability: a generally applicable conceptual framework for climate change research. Global Environ Chang 17: 155 \u2013 167. doi: <a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0959378006000525\">10.1016\/j.gloenvcha.2006.05.002<\/a><\/p>\n<p style=\"text-align: justify\">G\u00e9rard B, Br\u00e9da N (2014) Radial distribution of carbohydrate reserves in the trunk of declining European beech trees (<em>Fagus sylvatica<\/em> L.) Ann For Sci (this issue). <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs13595-012-0240-1\">doi: 10.1007\/s13595-012-0240-1<\/a><\/p>\n<p style=\"text-align: justify\">Granier A (2013) FAST &#8211; La for\u00eat fran\u00e7aise soumise au changement climatique et aux mutations de la fili\u00e8re bois. Environnement et Changements Globaux : des al\u00e9as \u00e0 la vuln\u00e9rabilit\u00e9 des soci\u00e9t\u00e9s &#8211; cahier ANR n\u00b07 &#8211; avril 2013, p 136. <a href=\"http:\/\/www.agence-nationale-recherche.fr\/suivi-bilan\/consulter\/environnement-et-changements-globaux-des-aleas-a-la-vulnerabilite-des-societes-cahier-anr-n7-avril-2013\/\">http:\/\/www.agence-nationale-recherche.fr\/suivi-bilan\/consulter\/environnement-et-changements-globaux-des-aleas-a-la-vulnerabilite-des-societes-cahier-anr-n7- avril-2013<\/a> . Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Guttschick VP, BassiriRad H (2003) Extreme events as shaping physiology, ecology, and evolution of plants: toward a unified definition and evaluation of their consequences. New Phytol 160:21 \u2013 42. doi: <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1046\/j.1469-8137.2003.00866.x\/abstract?systemMessage=Wiley+Online+Library+will+be+disrupted+9th+Aug+from+10-2+BST+for+essential+maintenance.+Pay+Per+View+will+be+unavailable+from+10-6+BST.\">10.1046\/j.1469-8137.2003.00866.x<\/a><\/p>\n<p style=\"text-align: justify\">Holling CS (1986) The resilience of terrestrial ecosystems; local surprise and global change. In: Clark WC, Munn RE (eds) Sustainable development of the biosphere, vol. 10. Cambridge University Press, Cambridge, pp 292 \u2013 317<\/p>\n<p style=\"text-align: justify\">Innes JL, Moffat AJ, Lonsdale D (1989) Weather conditions during the summer of 1989 and their effect on trees. Research information note 162, Farnham, Surrey Forestry Commission, Research Division 1989<\/p>\n<p style=\"text-align: justify\">IPCC (2012) Managing the risks of extreme events and disasters to advance climate change adaptation. In: Field CB, Barros V, Stocker TF, Qin D, Dokken DJ, Ebi KL, Mastrandrea MD, Mach KJ, Plattner G-K, Allen SK, Tignor M, Midgley PM (eds) A Special Report of Working Groups I and II of the Intergovernmental Panel onClimateChange.CambridgeUniversity Press, Cambridge, p 582. <a href=\"https:\/\/www.ipcc.ch\/pdf\/special-reports\/srex\/SREX_Full_Report.pdf\">https:\/\/www.ipcc.ch\/pdf\/special-reports\/srex\/SREX_Full_Report.pdf<\/a>. Accessed 8 August 2014<\/p>\n<p style=\"text-align: justify\">IPCC (2014) IPCC PCC WGII AR5, Glossary. Editor chairs: J. Agard andL.Schipper,p30. <a href=\"http:\/\/ipcc-wg2.gov\/AR5\/images\/uploads\/WGIIAR5-Glossary_FGD.pdf\">http:\/\/ipcc-wg2.gov\/AR5\/images\/uploads\/WGIIAR5-Glossary_FGD.pdf<\/a> . Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Jones EA, Reed DD, Mroz GD, Liechty HO, Cattelino PJ (1993) Climate stress as a precursor to forest decline \u2014 paper birch in Northern Michigan, 1985 \u2013 1990. Can J Forest Res 23:229 \u2013 233<\/p>\n<p style=\"text-align: justify\">Jurskis V (2005) Eucalypt decline in Australia, and a general concept of tree decline anddieback. Forest EcolManag 215:1 \u2013 20. doi: <a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S0378112705003130\">10.1016\/j.foreco.2005.04.026<\/a><\/p>\n<p style=\"text-align: justify\">Landmann G (1994) Concepts, d\u00e9finitions et caract\u00e9ristiques g\u00e9n\u00e9rales des d\u00e9p\u00e9rissements forestiers. Rev For Fr 5:405 \u2013 415<\/p>\n<p style=\"text-align: justify\">Liang EY, Shao XM, Kong ZC, Lin JX (2003) The extreme drought in the 1920s and its effect on tree growth deduced from tree ring analysis: a case study in North China. Ann For Sci 60:145 \u2013 152. doi: <a href=\"http:\/\/www.afs-journal.org\/articles\/forest\/abs\/2003\/02\/F3207\/F3207.html\">10.1051\/forest:2003007<\/a><\/p>\n<p style=\"text-align: justify\">Lloret F, Siscart D, Dalmases C (2004) Canopy recovery after drought dieback in holm-oak Mediterran ean forest of Catalonia (NE Spain). Global Change Biol 10:2092 \u2013 2099. doi: <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/j.1365-2486.2004.00870.x\/abstract?systemMessage=Wiley+Online+Library+will+be+disrupted+9th+Aug+from+10-2+BST+for+essential+maintenance.+Pay+Per+View+will+be+unavailable+from+10-6+BST.\">10.1111\/j.1365-2486.2004.00870.x<\/a><\/p>\n<p style=\"text-align: justify\">Loustau D, Bosc A, Colin A, Davi H, Fran\u00e7ois C, Dufr\u00eane E, D\u00e9qu\u00e9 M, Cloppet E, Arrouays D, le Bas C (2005) Modelling the climate change effects on the potential production of French plains forests at the sub regional level. Tree Physiol 25:813 \u2013 823<\/p>\n<p style=\"text-align: justify\">Manion PD (1991) Tree disease concepts. Prentice Hall, Englewood Cliffs<\/p>\n<p style=\"text-align: justify\">Manion PD (2003) Evolution of concepts in forest pathology. Phytopathology 93:1052 \u2013 1055<\/p>\n<p style=\"text-align: justify\">Mar\u00e7ais B, Desprez-Loustau ML (2014) European oak powdery mildew: impact on trees, effects of environmental factors and potential effects of climate change. Ann For Sci (this issue). doi: <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs13595-012-0252-x\">10.1007\/s13595-012-0252-x<\/a><\/p>\n<p style=\"text-align: justify\">Nageleisen LM (2004) Recrudescence des insectes sous-corticaux \u00e0 la suite des extr\u00eames climatiques de 2003. Bilan de la Sant\u00e9 des For\u00eats en 2003. D\u00e9partement de la Sant\u00e9 des for\u00eats, p5.\u00a0<a href=\"http:\/\/agriculture.gouv.fr\/IMG\/pdf\/06_bilan_scolyte_2003_cle4b5b11.pdf\"> http:\/\/agriculture.gouv.fr\/IMG\/ pdf\/06_bilan_scolyte_2003_cle4b5b11.pdf<\/a>. Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Nourtier M, Chanzy A, Cailleret M, Yingge X, Huc R, Davi H (2014) Transpiration of Silver Fir (<em>Abies alba<\/em> Mill.) during and after drought in relation to soil properties in a Mediterranean mountain area. Ann For Sci (this issue). doi: <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs13595-012-0229-9\">10.1007\/s13595-012-0229-9<\/a><\/p>\n<p style=\"text-align: justify\">Pauly H, Belrose V (2005) S\u00e9cheresse et canicule 2003 : observations en 2004 des cons\u00e9quences sur les peuplements forestiers adultes. D\u00e9partement de la Sant\u00e9 des For\u00eats, Bilan de la Sant\u00e9 des for\u00eats en 2004, Mai 2005, p 11<a href=\"http:\/\/agriculture.gouv.fr\/IMG\/pdf\/reseaux_2004_suite_secheresse_canicule.pdf\"> http:\/\/agriculture.gouv.fr\/IMG\/pdf\/reseaux_ 2004_suite_secheresse_canicule.pdf<\/a>. Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Piou D, Nageleisen LM, Desprez-Loustau ML, Candau JN (2006) Les risques sanitaires cons\u00e9cutifs \u00e0 2003 \u00e0 la lumi\u00e8re de la litt\u00e9rature. RDV techniques n\u00b0 11 &#8211; hiver 2006 \u2013 ONF, 28-34. <a href=\"http:\/\/www.onf.fr\/lire_voir_ecouter\/++oid++925\/@@display_media.html\">http:\/\/www.onf.fr\/lire_voir_ecouter\/++oid++925\/@@display_media.html<\/a> . Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Rambal S (2013) Les \u00e9cosyst\u00e8mes forestiers m\u00e9diterran\u00e9ens face aux changements climatiques. E nvironnement et Changements Globaux: des al\u00e9as \u00e0 la vuln\u00e9rabilit\u00e9 des soci\u00e9t\u00e9s &#8211; cahier ANR n\u00b07 &#8211; avril 2013, p 135. <a href=\"http:\/\/www.agence-nationale-recherche.fr\/suivi-bilan\/consulter\/environnement-et-changements-globaux-des-aleas-a-la-vulnerabilite-des-societes-cahier-anr-n7-avril-2013\/\">http:\/\/www.agence-nationale-recherche.fr\/suivi-bilan\/consulter\/environnement-et-changements-globaux-des-aleas-a-la-vulnerabilite-des-soc ietes-cahier-anr-n7-avril-2013<\/a>. Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Rouault G, Candau J-N, Lieutier F, Nageleisen L-M, Martin J-C, Warz\u00e9e N (2006) Effects of drought and heat on forest insect populations in relation to the 2003 drought in Western Europe. Ann For Sci 63: 613 \u2013 624. doi: <a href=\"http:\/\/www.afs-journal.org\/articles\/forest\/abs\/2006\/06\/f6065\/f6065.html\">10.1051\/forest:2006044<\/a><\/p>\n<p style=\"text-align: justify\">Sergent AS, Br\u00e9da N, Sanchez L, Bastien JC, Rozenberg P (2014a) Coastal and interior Douglas-fir provenances differ in growth performance and response to drought episodes at adult age. Ann For Sci (this issue). doi: <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs13595-014-0393-1\">10.1007\/s13595-014-0393-1<\/a><\/p>\n<p style=\"text-align: justify\">Sergent AS, Rozenberg P, Br\u00e9da N (2014b) Douglas-fir is vulnerable to exceptional andrecurrent drought episodes and recovers less well on less fertile sites. Ann For Sci (this issue). doi: <a href=\"http:\/\/link.springer.com\/article\/10.1007%2Fs13595-012-0220-5\">10.1007\/s13595-012-0220-5<\/a><\/p>\n<p style=\"text-align: justify\">Spittlehouse DL (2005) Integrating climate change adaptation into forest management. Forest Chron 81:691 \u2013 695. <a href=\"http:\/\/www.for.gov.bc.ca\/hre\/pubs\/pubs\/1394.htm\">http:\/\/www.for.gov.bc.ca\/ hre\/pubs\/pubs\/1394.htm<\/a> . Accessed 17 July 2014<\/p>\n<p style=\"text-align: justify\">Thomas FM, Blank R, Hartmann G (2002) Abiotic and biotic factors and their interactions as causes of oak decline in Central Europe. For Path 32:277 \u2013 307. doi: <a href=\"http:\/\/onlinelibrary.wiley.com\/doi\/10.1046\/j.1439-0329.2002.00291.x\/abstract?systemMessage=Wiley+Online+Library+will+be+disrupted+9th+Aug+from+10-2+BST+for+essential+maintenance.+Pay+Per+View+will+be+unavailable+from+10-6+BST.\">10.1046\/j.1439-0329.2002.00291.x<\/a><\/p>\n<p style=\"text-align: justify\">Williams SE, Shoo LP, Isaac JL, Hoffmann AA, Langham G (2008) Towards and integrated framework for assessing the vulnerability of species to climate change. Plos Biol 6:2621 \u2013 2626. doi: <a href=\"http:\/\/www.plosbiology.org\/article\/info:doi\/10.1371\/journal.pbio.0060325\">10.1371\/journal.pbio.0060325 <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nathalie BR\u0090\u00c9DA, Marianne PEIFFER INRA, UMR 1137 \u00c9cologie et \u00c9cophysiologie Foresti\u00e8res, 54280 Champenoux, France Universit\u00e9 de Lorraine, UMR 1137 \u00c9cologie et \u00c9cophysiologie Foresti\u00e8res, BP 239, F-54506 Vand\u0153uvre-les-Nancy, France<\/p>\n","protected":false},"author":34,"featured_media":511,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14,18],"tags":[46,45,47,44],"class_list":["post-451","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-article-type","category-letter-to-the-editor","tag-climate-change","tag-dieback","tag-ecology","tag-vulnerability","cat-14-id","cat-18-id","has_thumb"],"_links":{"self":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/451","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/users\/34"}],"replies":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/comments?post=451"}],"version-history":[{"count":0,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/posts\/451\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media\/511"}],"wp:attachment":[{"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/media?parent=451"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/categories?post=451"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ist.blogs.inrae.fr\/afs\/wp-json\/wp\/v2\/tags?post=451"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}