Vulnerability to xylem embolism as a major correlate of the environmental distribution of rain forest species on a tropical island
| Autor: | Sandrine Isnard, Frederic Lens, Robin Pouteau, Santiago Trueba, Taylor S. Feild, Sylvain Delzon, Mark E. Olson |
|---|---|
| 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]), Naturalis Biodiversity Center, Universiteit Leiden [Leiden], Tulane University, Universidad Nacional Autónoma de México (UNAM), Biodiversité, Gènes & Communautés (BioGeCo), Institut National de la Recherche Agronomique (INRA)-Université de Bordeaux (UB), 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]), Biodiversité, Gènes et Communautés, Institut National de la Recherche Agronomique (INRA), Naturalis Biodiversity Center [Leiden] |
| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
gradients angiosperme Physiology Range (biology) elevation Rain [SDV]Life Sciences [q-bio] Vulnerability Plant Science forêt tropicale xylem 01 natural sciences environmental functional traits environmental gradients Islands Geography Plant Stems Ecology xylème food and beverages diversification des espèces wood density vesselless angiosperms Habitat species diversification angiosperms tropical forest Rainforest drought resistance Biology 010603 evolutionary biology Magnoliopsida New Caledonia Species Specificity cavitation Tropical vegetation Pressure medicine Tropical Climate Resistance (ecology) fungi Xylem 15. Life on land medicine.disease Plant Leaves Embolism nouvelle calédonie 010606 plant biology & botany |
| Zdroj: | Plant, Cell and Environment Plant, Cell and Environment, Wiley, 2017, 40 (2), pp.277-289. ⟨10.1111/pce.12859⟩ |
| ISSN: | 0140-7791 1365-3040 |
| DOI: | 10.1111/pce.12859⟩ |
| Popis: | Increases in drought-induced tree mortality are being observedin tropical rain forests worldwide and are also likely to affectthe geographical distribution of tropical vegetation. However,the mechanisms underlying the drought vulnerability and environmental distribution of tropical species have been little studied. We measured vulnerability to xylem embolism (P50) of 13woody species endemic to New Caledonia and with differentxylem conduit morphologies. We examined the relation be-tween P50, along with other leaf and xylem functional traits,and a range of habitat variables. Selected species had P50values ranging between 4.03 and 2.00 MPa with most species falling in a narrow range of resistance to embolism above 2.7 MPa. Embolism vulnerability was significantly correlatedwith elevation, mean annual temperature and percentage ofspecies occurrences located in rain forest habitats. Xylem conduit type did not explain variation in P50. Commonly used functional traits such as wood density and leaf traits were notrelated to embolism vulnerability. Xylem embolism vulnerability stands out among other commonly used functional traits as amajor driver of species environmental distribution. Drought-induced xylem embolism vulnerability behaves as a physiological trait closely associated with the habitat occupation of rainforest woody species. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text