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Genetic considerations in ecosystem restoration using native tree species / Evert Thomas in Forest ecology and management, 333 (2014) 

Public Citation [article]  inForest ecology and management > 333 (2014) . - 66-75 Titre : Genetic considerations in ecosystem restoration using native tree species Type de document : Imprimé Auteurs : Evert Thomas ; Riina Jalonen ; Judy Loo ; David Boshier ; Leonardo Gallo ; Stephen Cavers ; Sándor Bordács ; Paul Smith ; Michele Bozzano Année de publication : 2014 Article en page(s) : 66-75 Langues : Français (fre) Catégories : [CBNPMP-Thématique] Restauration des écosystèmes [CBNPMP-Thématique] Diversité génétique Résumé : Rehabilitation and restoration of forest ecosystems are in growing demand to tackle climate change, biodiversity loss and desertification—major environmental problems of our time. Interest in restoration of ecosystems is increasingly translated into strong political commitment to large-scale tree planting projects. Along with this new impetus and the enormous scale of planned projects come both opportunities and risks: opportunities to significantly increase the use of native species, and risks of failure associated with the use of inadequate or mismatched reproductive material, which though it may provide forest cover in the short term, will not likely establish a self-sustaining ecosystem. The value of using native tree species in ecosystem restoration is receiving growing recognition both among restoration practitioners and policy makers. However, insufficient attention has been given to genetic variation within and among native tree species, their life histories and the consequences of their interactions with each other and with their environment. Also restoration practitioners have often neglected to build in safeguards against the anticipated effects of anthropogenic climate change. Measurement of restoration success has tended to be assessments of hectares covered or seedling survival in a short timeframe, neither of which is an indicator of ecosystem establishment in the long term. In this article, we review current practices in ecosystem restoration using native tree species, with a particular focus on genetic considerations. Our discussion is organised across three themes: (i) species selection and the sourcing of forest reproductive material; (ii) increasing resilience by fostering natural selection, ecological connectivity and species associations; and (iii) measuring the success of restoration activities. We present a number of practical recommendations for researchers, policymakers and restoration practitioners to increase the potential for successful interventions. We recommend the development and adoption of decision-support tools for: (i) collecting and propagating germplasm in a way that ensures a broad genetic base of restored tree populations, including planning the sourcing of propagation material of desired species well before the intended planting time; (ii) matching species and provenances to restoration sites based on current and future site conditions, predicted or known patterns of variation in adaptive traits and availability of seed sources; and (iii) landscape-level planning in restoration projects. Lien pérenne : DOI : 10.1016/j.foreco.2014.07.015 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=149227 Thomas, Evert, Jalonen, Riina, Loo, Judy, Boshier, David, Gallo, Leonardo, Cavers, Stephen, Bordács, Sándor, Smith, Paul, Bozzano, Michele 2014 Genetic considerations in ecosystem restoration using native tree species. Forest ecology and management, 333: 66-75.

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Consultable Article (2014) URL

The role of forest genetic resources in responding to biotic and abiotic factors in the context of anthropogenic climate change / René I. Alfaro in Forest ecology and management, 333 (2014) 

Public Citation [article]  inForest ecology and management > 333 (2014) . - 76-87 Titre : The role of forest genetic resources in responding to biotic and abiotic factors in the context of anthropogenic climate change Type de document : Imprimé Auteurs : René I. Alfaro ; Bruno Fady (1960-) ; Giovanni Vendramin ; Ian K. Dawson ; Richard A. Fleming ; Cuauhtémoc Sáenz-Romero ; Roberto Lindig-Cisneros ; Trevor Murdock ; Barbara Vinceti ; Carlos Manuel Navarro ; Tore Skroppa ; Giulia Baldinelli ; Yoursy A. El-Kassaby ; Judy Loo Année de publication : 2014 Article en page(s) : 76-87 Langues : Anglais (eng) Résumé : The current distribution of forest genetic resources on Earth is the result of a combination of natural processes and human actions. Over time, tree populations have become adapted to their habitats including the local ecological disturbances they face. As the planet enters a phase of human-induced climate change of unprecedented speed and magnitude, however, previously locally-adapted populations are rendered less suitable for new conditions, and ‘natural’ biotic and abiotic disturbances are taken outside their historic distribution, frequency and intensity ranges. Tree populations rely on phenotypic plasticity to survive in extant locations, on genetic adaptation to modify their local phenotypic optimum or on migration to new suitable environmental conditions. The rate of required change, however, may outpace the ability to respond, and tree species and populations may become locally extinct after specific, but as yet unknown and unquantified, tipping points are reached. Here, we review the importance of forest genetic resources as a source of evolutionary potential for adaptation to changes in climate and other eco- logical factors. We particularly consider climate-related responses in the context of linkages to disturbances such as pests, diseases and fire, and associated feedback loops. The importance of management strategies to conserve evolutionary potential is emphasised and recommendations for policy-makers are provided. Lien pérenne : HAL : hal-02633534 Permalink : https://biblio.cbnpmp.fr/index.php?lvl=notice_display&id=146659 Alfaro, René I., Fady, Bruno (1960-), Vendramin, Giovanni, Dawson, Ian K., Fleming, Richard A., Sáenz-Romero, Cuauhtémoc, Lindig-Cisneros, Roberto, Murdock, Trevor, Vinceti, Barbara, Navarro, Carlos Manuel, Skroppa, Tore, Baldinelli, Giulia, El-Kassaby, Yoursy A., Loo, Judy 2014 The role of forest genetic resources in responding to biotic and abiotic factors in the context of anthropogenic climate change. Forest ecology and management, 333: 76-87.

Documents numériques

Consultable Article (2014) URL