Beyond trees: Biogeographical regionalization of tropical Africa

Autor: Tariq Stévart, Anne Blach-Overgaard, Jens-Christian Svenning, Olivier J. Hardy, Thomas L. P. Couvreur, Steven Janssens, Bonaventure Sonké, Barbara A. Mackinder, Vincent Droissart, David Harris, Vincent Deblauwe, Gilles Dauby, Marc S.M. Sosef, Jan J. Wieringa
Přispěvatelé: Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Institut National de la Recherche Agronomique (INRA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD [France-Sud]), Diversité, adaptation, développement des plantes (UMR DIADE), Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Evolutionary Biology and Ecology, Department of Organism Biology, Université libre de Bruxelles (ULB), Department of Ecology and Evolutionary Biology, Center for Tropical Research, Institute of the Environment and Sustainability, University of California [Los Angeles] (UCLA), University of California-University of California, Royal Botanical Garden Edinburgh, Royal Botanical Garden, Botanic Garden Meise, Royal Botanic Garden Edinburgh, Aarhus University [Aarhus], University of Yaoundé [Cameroun], Herbarieum et Bibliothèque de Botanique africaine, Section for Ecoinformatics & Biodiversity, Department of Bioscience, Naturalis Biodiversity Center [Leiden], Fondation pour la Recherche sur la Biodiversite Fonds de la Recherche Scientifique - FNRS Villum Fonden 16549 French Foundation for Research on Biodiversity (FRB) Region Provence-Alpes-Cote d'Azur Belgian Fund for Scientific Research, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut National de la Recherche Agronomique (INRA)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud]), Université Libre de Bruxelles [Bruxelles] (ULB), Aarhus University, Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])
Rok vydání: 2018
Předmět:
0106 biological sciences
0301 basic medicine
RAINBIO database
nestedness
CONSERVATION
African bioregions
[SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics
Phylogenetics and taxonomy
Phytogeography
010603 evolutionary biology
01 natural sciences
diversity
03 medical and health sciences
network clustering
[SDV.EE.ECO]Life Sciences [q-bio]/Ecology
environment/Ecosystems
growth forms
SPECIES COMPOSITION
Growth form
SUB-SAHARAN AFRICA
Endemism
Ecology
Evolution
Behavior and Systematics
PLANT DIVERSITY
2. Zero hunger
Diversity
FLORA
Ecology
phytogeography
Species diversity
RAIN-FOREST
ENDEMISM
[SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics
15. Life on land
REGIONS
030104 developmental biology
Geography
Liana
Network clustering
PATTERNS
Nestedness
BIODIVERSITY
Ordination
Species richness
[SDE.BE]Environmental Sciences/Biodiversity and Ecology
Woody plant
Zdroj: Journal of Biogeography
Journal of Biogeography, Wiley, 2018, 45 (5), pp.1153-1167. ⟨10.1111/jbi.13190⟩
Droissart, V, Dauby, G, Hardy, O J, Deblauwe, V, Harris, D J, Janssens, S, Mackinder, B, Blach-Overgaard, A, Sonke, B, Sosef, M S M, Stevart, T, Svenning, J-C, Wieringa, J J & Couvreur, T L P 2018, ' Beyond trees: Biogeographical regionalization of tropical Africa ', Journal of Biogeography, vol. 45, no. 5, pp. 1153-1167 . https://doi.org/10.1111/jbi.13190
ISSN: 0305-0270
1365-2699
Popis: Aim: To delineate bioregions in tropical Africa and determine whether different plant growth forms (trees, terrestrial herbs, lianas and shrubs) display the same pattern of regionalization, diversity and endemism as the whole flora.Location: Tropical Africa (excl. Madagascar), from 20 degrees N to 25 degrees S.Taxon: Vascular plants.Methods: Analyses were based on occurrences of 24,719 vascular plant species distributed across tropical Africa extracted from the RAINBIO database. The majority of species (93%) were classified into four growth forms: terrestrial herbs, trees, shrubs and lianas. Biogeographical regions (bioregions) were delimited using a bipartite network clustering approach on the whole dataset and then separately for each growth form. Relationships among bioregions were investigated using non-metric multidimensional scaling ordination, flora nestedness and endemism patterns.Results: Analyses of the whole dataset identified 16 bioregions and 11 transition zones. These were congruent with most of the currently recognized phytogeographical classifications, and also highlighted previously under-recognized bioregions. Bioregion endemism rates were lower and species richness higher when compared to estimates from the White/Association pour l'Etude Taxonomique de la Flore d'Afrique Tropicale (AETFAT) classification. Analysed separately, plant growth forms showed contrasting geographical patterns. Bioregionalization was better resolved for closed forest types using trees and lianas and for open vegetation types using terrestrial herbs, while shrubs showed good discriminative power in all vegetation types.Main conclusions: We show that distribution patterns based on solely trees are not sufficient to define floristic bioregions in tropical Africa. Analyses of spatial patterns using different growth forms are complementary, likely reflecting different evolutionary processes and ecological relationships. The contribution of growth forms to delimit geographical floristic patterns across tropical Africa is of critical importance for land use planning and management, and for selecting priority conservation areas.
Databáze: OpenAIRE
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