Biogeographical network analysis of plant species distribution in the Mediterranean region

Autor: Olivier Argagnon, Samuel Alleaume, Guilhem De Barros, Guillaume Papuga, Sandra Luque, Maxime Lenormand, Maxence Soubeyrand
Přispěvatelé: Territoires, Environnement, Télédétection et Information Spatiale (UMR TETIS), AgroParisTech-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre National de la Recherche Scientifique (CNRS), CBNMED, Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Centre National de la Recherche Scientifique (CNRS), Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad), Conservatoire Botanique National Méditerranéen de Porquerolles, Centre National de la Recherche Scientifique (CNRS), ANR-17-CE03-0003,NetCost,Une approche réseau pour mesurer l'impact du changement(2017)
Jazyk: angličtina
Rok vydání: 2019
Předmět:
0106 biological sciences
Mediterranean climate
Flora
REGION MEDITERRANEENE
Species distribution
Biodiversity
Distribution (economics)
Quantitative Biology - Quantitative Methods
010603 evolutionary biology
01 natural sciences
LANGUEDOC ROUSSILLON
03 medical and health sciences
Temperate climate
species network
biogeographical regions
Quantitative Biology - Populations and Evolution
spatial network
Quantitative Methods (q-bio.QM)
Ecology
Evolution
Behavior and Systematics
Original Research
030304 developmental biology
Nature and Landscape Conservation
0303 health sciences
Ecology
business.industry
Populations and Evolution (q-bio.PE)
PROVENCE ALPES COTE D'AZUR
Biota
15. Life on land
[SDV.BIBS]Life Sciences [q-bio]/Quantitative Methods [q-bio.QM]
Mediterranean France
Geography
plant species
FOS: Biological sciences
[SDE]Environmental Sciences
regionalization
Identification (biology)
business
FRANCE MEDITERRANEENNE
Zdroj: Ecology and Evolution
Ecology and Evolution, Wiley Open Access, 2019
Ecology and Evolution, Wiley Open Access, 2019, 9 (1), pp.237-250. ⟨10.1002/ece3.4718⟩
ISSN: 2045-7758
DOI: 10.1002/ece3.4718⟩
Popis: The delimitation of bioregions helps to understand historical and ecological drivers of species distribution. In this work, we performed a network analysis of the spatial distribution patterns of plants in south of France (Languedoc-Roussillon and Provence-Alpes-C\^ote d'Azur) to analyze the biogeographical structure of the French Mediterranean flora at different scales. We used a network approach to identify and characterize biogeographical regions, based on a large database containing 2.5 million of geolocalized plant records corresponding to more than 3500 plant species. This methodology is performed following five steps, from the biogeographical bipartite network construction, to the identification of biogeographical regions under the form of spatial network communities, the analysis of their interactions and the identification of clusters of plant species based on the species contribution to the biogeographical regions. First, we identified two sub-networks that distinguish Mediterranean and temperate biota. Then, we separated eight statistically significant bioregions that present a complex spatial structure. Some of them are spatially well delimited, and match with particular geological entities. On the other hand fuzzy transitions arise between adjacent bioregions that share a common geological setting, but are spread along a climatic gradient. The proposed network approach illustrates the biogeographical structure of the flora in southern France, and provides precise insights into the relationships between bioregions. This approach sheds light on ecological drivers shaping the distribution of Mediterranean biota: the interplay between a climatic gradient and geological substrate shapes biodiversity patterns. Finally this work exemplifies why fragmented distributions are common in the Mediterranean region, isolating groups of species that share a similar eco-evolutionary history.
Comment: 16 pages, 7 figures + Appendix
Databáze: OpenAIRE
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