The impact of climate change on forest ecosystems now encourages managers to implement adaption strategies in terms of species choice despite the uncertainty of future scenarios. To achieve this, a quantified characterization of species ecological requirements is necessary. The project Traitaut thus aimed at developing a new quantitative approach to characterize the species autoecology, especially including the functional traits. A research and development community and a web platform including a database of bibliographic sources on different species were built. The analysis of the TRY database showed that functional traits can be used to the parameterization of growth and species distribution models but it is necessary to register the values of abiotic factors for each trait measurement. Study and comparison of the European decision support tools underlined the need to establish such a tool in France and they were used to do relevant specifications for the tool building.
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