Canopy and understorey tree guilds respond differently to the environment in an Indian rain forest
| Autor: | François Munoz, Valérie Raevel, N. Ayyappan, N. Balachandran, Maxime Réjou-Méchain, Narayanan Barathan, Gopalakrishnan Rajashekar, Sylvain Schmitt |
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| Přispěvatelé: | Institut Français de Pondichéry (IFP), Ministère de l'Europe et des Affaires étrangères (MEAE)-Centre National de la Recherche Scientifique (CNRS), Ecologie des forêts de Guyane (UMR ECOFOG), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-AgroParisTech-Université de Guyane (UG)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Botanique et Modélisation de l'Architecture des Plantes et des Végétations (UMR AMAP), 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])-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Indian Space Research Organisation (ISRO), Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy ), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes (UGA) |
| Rok vydání: | 2021 |
| Předmět: |
0106 biological sciences
Canopy Ecology Vertical strata Forestry Plant Science Rainforest Understory [SDV.BV.BOT]Life Sciences [q-bio]/Vegetal Biology/Botanics 15. Life on land [SDV.BID.SPT]Life Sciences [q-bio]/Biodiversity/Systematics Phylogenetics and taxonomy 010603 evolutionary biology 01 natural sciences Tree (data structure) Wood Leaf economics spectrum [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Geography Leaf economics spectrum [SDE.BE]Environmental Sciences/Biodiversity and Ecology Environmental filtering 010606 plant biology & botany |
| Zdroj: | Journal of Vegetation Science Journal of Vegetation Science, Wiley, 2021, 32 (5), ⟨10.1111/jvs.13075⟩ |
| ISSN: | 1654-1103 1100-9233 |
| Popis: | International audience; Questions: Changes in the functional composition of tree communities along resource availability gradients have received attention, but it is unclear whether or not understory and canopy guilds respond similarly to different light, biomechanical, and hydraulic constraints. Location: An anthropically-undisturbed, old-growth wet evergreen Dipterocarp forest plot located in Karnataka State, India. Methods: We measured leaf and wood traits of 89 tree species representing 99% of all individuals in a 10 ha permanent plot with varying topographic and canopy conditions inferred from LiDAR data. We assigned tree species to guilds of canopy and understory species and assessed the variation of the guild weighted means of functional trait values with canopy height and topography. Results: The functional trait space did not differ between canopy and understory tree species. However, environmental filtering led to significantly different functional composition of canopy and understory guild assemblages. Furthermore, they responded differently along environmental gradients related to water, nutrients, light, and wind exposure. For example, the canopy guild responded to wind exposure while the understory guild did not. Conclusions environmental heterogeneity impacts differently on these two guilds, generating striking differences in functional composition between understory and canopy guild assemblages. Accounting for vertical guilds improves our understanding of forest communities’ assembly processes. |
| Databáze: | OpenAIRE |
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