Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients
Species distribution is strongly driven by local and global gradients in water availability but the underlying mechanisms are not clear. Vulnerability to xylem embolism (P50) is a key trait that indicates how species cope with drought and might explain plant distribution patterns across environmental gradients. Here we address its role on species sorting along a hydro-topographical gradient in a central Amazonian rainforest and examine its variance at the community scale. We measured P50 for 28 tree species, soil properties and estimated the hydrological niche of each species using an indicator of distance to the water table (HAND). We found a large hydraulic diversity, covering as much as 44% of the global angiosperm variation in P50. We show that P50: contributes to species segregation across a hydro-topographic gradient in the Amazon, and thus to species coexistence; is the result of repeated evolutionary adaptation within closely related taxa; is associated with species tolerance to P-poor soils, suggesting the evolution of a stress-tolerance syndrome to nutrients and drought; and is higher for trees in the valleys than uplands. The large observed hydraulic diversity and its association with topography has important implications for modelling and predicting forest and species resilience to climate change.
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Format: | Article/Letter to editor biblioteca |
Language: | English |
Subjects: | P, drought vulnerability, forest resilience, functional ecology, hydrological niches, phosphorus, tropical forests, water table, |
Online Access: | https://research.wur.nl/en/publications/embolism-resistance-drives-the-distribution-of-amazonian-rainfore |
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dig-wur-nl-wurpubs-5422282024-10-02 Oliveira, Rafael S. Costa, Flavia R.C. van Baalen, Emma de Jonge, Arjen Bittencourt, Paulo R. Almanza, Yanina de V. Barros, Fernanda Cordoba, Edher C. Fagundes, Marina V. Garcia, Sabrina Guimaraes, Zilza T.T.M. Hertel, Mariana Schietti, Juliana Rodrigues-Souza, Jefferson Poorter, Lourens Article/Letter to editor New Phytologist 221 (2019) 3 ISSN: 0028-646X Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients 2019 Species distribution is strongly driven by local and global gradients in water availability but the underlying mechanisms are not clear. Vulnerability to xylem embolism (P50) is a key trait that indicates how species cope with drought and might explain plant distribution patterns across environmental gradients. Here we address its role on species sorting along a hydro-topographical gradient in a central Amazonian rainforest and examine its variance at the community scale. We measured P50 for 28 tree species, soil properties and estimated the hydrological niche of each species using an indicator of distance to the water table (HAND). We found a large hydraulic diversity, covering as much as 44% of the global angiosperm variation in P50. We show that P50: contributes to species segregation across a hydro-topographic gradient in the Amazon, and thus to species coexistence; is the result of repeated evolutionary adaptation within closely related taxa; is associated with species tolerance to P-poor soils, suggesting the evolution of a stress-tolerance syndrome to nutrients and drought; and is higher for trees in the valleys than uplands. The large observed hydraulic diversity and its association with topography has important implications for modelling and predicting forest and species resilience to climate change. en application/pdf https://research.wur.nl/en/publications/embolism-resistance-drives-the-distribution-of-amazonian-rainfore 10.1111/nph.15463 https://edepot.wur.nl/462677 P drought vulnerability forest resilience functional ecology hydrological niches phosphorus tropical forests water table (c) publisher Wageningen University & Research |
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P drought vulnerability forest resilience functional ecology hydrological niches phosphorus tropical forests water table P drought vulnerability forest resilience functional ecology hydrological niches phosphorus tropical forests water table |
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P drought vulnerability forest resilience functional ecology hydrological niches phosphorus tropical forests water table P drought vulnerability forest resilience functional ecology hydrological niches phosphorus tropical forests water table Oliveira, Rafael S. Costa, Flavia R.C. van Baalen, Emma de Jonge, Arjen Bittencourt, Paulo R. Almanza, Yanina de V. Barros, Fernanda Cordoba, Edher C. Fagundes, Marina V. Garcia, Sabrina Guimaraes, Zilza T.T.M. Hertel, Mariana Schietti, Juliana Rodrigues-Souza, Jefferson Poorter, Lourens Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients |
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Species distribution is strongly driven by local and global gradients in water availability but the underlying mechanisms are not clear. Vulnerability to xylem embolism (P50) is a key trait that indicates how species cope with drought and might explain plant distribution patterns across environmental gradients. Here we address its role on species sorting along a hydro-topographical gradient in a central Amazonian rainforest and examine its variance at the community scale. We measured P50 for 28 tree species, soil properties and estimated the hydrological niche of each species using an indicator of distance to the water table (HAND). We found a large hydraulic diversity, covering as much as 44% of the global angiosperm variation in P50. We show that P50: contributes to species segregation across a hydro-topographic gradient in the Amazon, and thus to species coexistence; is the result of repeated evolutionary adaptation within closely related taxa; is associated with species tolerance to P-poor soils, suggesting the evolution of a stress-tolerance syndrome to nutrients and drought; and is higher for trees in the valleys than uplands. The large observed hydraulic diversity and its association with topography has important implications for modelling and predicting forest and species resilience to climate change. |
format |
Article/Letter to editor |
topic_facet |
P drought vulnerability forest resilience functional ecology hydrological niches phosphorus tropical forests water table |
author |
Oliveira, Rafael S. Costa, Flavia R.C. van Baalen, Emma de Jonge, Arjen Bittencourt, Paulo R. Almanza, Yanina de V. Barros, Fernanda Cordoba, Edher C. Fagundes, Marina V. Garcia, Sabrina Guimaraes, Zilza T.T.M. Hertel, Mariana Schietti, Juliana Rodrigues-Souza, Jefferson Poorter, Lourens |
author_facet |
Oliveira, Rafael S. Costa, Flavia R.C. van Baalen, Emma de Jonge, Arjen Bittencourt, Paulo R. Almanza, Yanina de V. Barros, Fernanda Cordoba, Edher C. Fagundes, Marina V. Garcia, Sabrina Guimaraes, Zilza T.T.M. Hertel, Mariana Schietti, Juliana Rodrigues-Souza, Jefferson Poorter, Lourens |
author_sort |
Oliveira, Rafael S. |
title |
Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients |
title_short |
Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients |
title_full |
Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients |
title_fullStr |
Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients |
title_full_unstemmed |
Embolism resistance drives the distribution of Amazonian rainforest tree species along hydro-topographic gradients |
title_sort |
embolism resistance drives the distribution of amazonian rainforest tree species along hydro-topographic gradients |
url |
https://research.wur.nl/en/publications/embolism-resistance-drives-the-distribution-of-amazonian-rainfore |
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