Reference : Simulating last glacial and postglacial distributions of African tropical trees with ...
Scientific congresses and symposiums : Unpublished conference/Abstract
Physical, chemical, mathematical & earth Sciences : Earth sciences & physical geography
http://hdl.handle.net/2268/227240
Simulating last glacial and postglacial distributions of African tropical trees with a dynamic vegetation model.
English
Dury, Marie mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Modélisation du climat et des cycles biogéochimiques >]
Henrot, Alexandra-Jane mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Modélisation du climat et des cycles biogéochimiques >]
Lézine, Anne-Marie []
Migliore, Jérémy []
Hardy, Olivier []
Hambuckers, Alain mailto [Université de Liège - ULiège > Département de Biologie, Ecologie et Evolution > Biologie du comportement - Ethologie et psychologie animale >]
Fayolle, Adeline mailto [Université de Liège - ULiège > Ingénierie des biosystèmes (Biose) > Gestion des ressources forestières et des milieux naturels >]
Singarayer, Joy []
Trolliet, Franck mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Modélisation du climat et des cycles biogéochimiques >]
François, Louis mailto [Université de Liège - ULiège > Département d'astrophys., géophysique et océanographie (AGO) > Modélisation du climat et des cycles biogéochimiques >]
16-Aug-2018
No
No
International
10th European Palaeobotany and Palynology Conference
du 12 août au 17 août 2018
University College Dublin
Dublin
Ireland
[en] Last Glacial ; Holocene ; African tropical tree species ; Modelling ; Past dynamics
[en] Climate change and human pressure threaten species richness of African tropical forests. Understanding how the past climate changes have shaped the current distribution and composition of African rainforests can certainly help to the ecosystem conservation in the future. This topic is addressed in the framework of the multi-disciplinary AFRIFORD project (Genetic and palaeoecological signatures of African rainforest dynamics: pre-adapted to change?, http://www.ulb.ac.be/facs/sciences/afriford/). In parallel to genetic and palynological analyses, the CARAIB dynamic vegetation model is applied at the level of African tropical plant species to simulate change in their distributions from the Last Glacial Maximum (21,000 years BP) to the present in sub-Saharan Africa. We prepared a set of about a hundred species, mostly composed of tropical tree species (evergreen/deciduous, cool/warm taxa) for which we compiled observed occurrence data (e.g.., RAINBIO database), determined climatic requirements and gathered some specific traits (e.g., TRY database).
From LGM to present time, the vegetation model is forced with the 1-kyr snapshot outputs of the HadCM3 climate model. Statistically downscaled at a spatial resolution of 0.5°, we only kept modelled past anomalies that we added to the GSWP3 (20 CR) climate data chosen as the reference for the historical period. Sub-Saharan simulations are performed with CARAIB forced by these climatic projections to simulate the net primary productivity of the species over time and space. We analyse the modelled changes in tropical forest composition and extension as well as in the distribution of individual species whose glacial refugia and postglacial dynamics remain poorly known.
BELSPO - SPP Politique scientifique - Service Public Fédéral de Programmation Politique scientifique
AFRIFORD (Genetic and paleoecological signature of African rainforest dynamics: pre-adapted to change?)
Researchers ; Professionals ; Students
http://hdl.handle.net/2268/227240

There is no file associated with this reference.

Bookmark and Share SFX Query

All documents in ORBi are protected by a user license.