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Tree diversity reduces variability in sapling survival under drought

(2024) JOURNAL OF ECOLOGY. 112(5). p.1164-1180
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Abstract
1. Enhancing tree diversity may be important to fostering resilience to drought-related climate extremes. So far, little attention has been given to whether tree diversity can increase the survival of trees and reduce its variability in young forest plantations. 2. We conducted an analysis of seedling and sapling survival from 34 globally distributed tree diversity experiments (363,167 trees, 168 species, 3744 plots, 7 biomes) to answer two questions: (1) Do drought and tree diversity alter the mean and variability in plot-level tree survival, with higher and less variable survival as diversity increases? and (2) Do species that survive poorly in monocultures survive better in mixtures and do specific functional traits explain monoculture survival? 3. Tree species richness reduced variability in plot-level survival, while functional diversity (Rao's Q entropy) increased survival and also reduced its variability. Importantly, the reduction in survival variability became stronger as drought severity increased. We found that species with low survival in monocultures survived comparatively better in mixtures when under drought. Species survival in monoculture was positively associated with drought resistance (indicated by hydraulic traits such as turgor loss point), plant height and conservative resource-acquisition traits (e.g. low leaf nitrogen concentration and small leaf size). 4. Synthesis. The findings highlight: (1) The effectiveness of tree diversity for decreasing the variability in seedling and sapling survival under drought; and (2) the importance of drought resistance and associated traits to explain altered tree species survival in response to tree diversity and drought. From an ecological perspective, we recommend mixing be considered to stabilize tree survival, particularly when functionally diverse forests with drought-resistant species also promote high survival of drought-sensitive species.
Keywords
climate change adaptation, functional traits, IDENT, relative extractable water (REW), standardized precipitation evapotranspiration index (SPEI), tree mortality, TreeDivNet, FUNCTIONAL DIVERSITY, FOREST RESILIENCE, HYDRAULIC SAFETY, BIODIVERSITY, RESISTANCE, ECOLOGY, RESTORATION, TOLERANCE, STABILITY, EMBOLISM

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Citation

Please use this url to cite or link to this publication:

MLA
Blondeel, Haben, et al. “Tree Diversity Reduces Variability in Sapling Survival under Drought.” JOURNAL OF ECOLOGY, vol. 112, no. 5, 2024, pp. 1164–80, doi:10.1111/1365-2745.14294.
APA
Blondeel, H., Guillemot, J., Martin-StPaul, N., Druel, A., Bilodeau-Gauthier, S., Bauhus, J., … Baeten, L. (2024). Tree diversity reduces variability in sapling survival under drought. JOURNAL OF ECOLOGY, 112(5), 1164–1180. https://doi.org/10.1111/1365-2745.14294
Chicago author-date
Blondeel, Haben, Joannes Guillemot, Nicolas Martin-StPaul, Arsene Druel, Simon Bilodeau-Gauthier, Juergen Bauhus, Charlotte Grossiord, et al. 2024. “Tree Diversity Reduces Variability in Sapling Survival under Drought.” JOURNAL OF ECOLOGY 112 (5): 1164–80. https://doi.org/10.1111/1365-2745.14294.
Chicago author-date (all authors)
Blondeel, Haben, Joannes Guillemot, Nicolas Martin-StPaul, Arsene Druel, Simon Bilodeau-Gauthier, Juergen Bauhus, Charlotte Grossiord, Andrew Hector, Herve Jactel, Joel Jensen, Christian Messier, Bart Muys, Hernan Serrano-Leon, Harald Auge, Nadia Barsoum, Emiru Birhane, Helge Bruelheide, Jeannine Cavender-Bares, Chengjin Chu, Jonathan R. Cumming, Abebe Damtew, Nico Eisenhauer, Olga Ferlian, Sebastian Fiedler, Gislene Ganade, Douglas L. Godbold, Dominique Gravel, Jefferson S. Hall, Dirk Hoelscher, Kristin B. Hulvey, Julia Koricheva, Holger Kreft, Cathleen Lapadat, Jingjing Liang, Xiaojuan Liu, Celine Meredieu, Simone Mereu, Rebecca Montgomery, Lourdes Morillas, Charles Nock, Alain Paquette, John D. Parker, William C. Parker, Gustavo B. Paterno, Michael P. Perring, Quentin Ponette, Catherine Potvin, Peter B. Reich, James Rentch, Boris Rewald, Hans Sanden, Katherine Sinacore, Rachel J. Standish, Artur Stefanski, Patrick C. Tobin, Michiel van Breugel, Marina Vergara Fagundes, Martin Weih, Laura J. Williams, Mo Zhou, Michael Scherer-Lorenzen, Kris Verheyen, and Lander Baeten. 2024. “Tree Diversity Reduces Variability in Sapling Survival under Drought.” JOURNAL OF ECOLOGY 112 (5): 1164–1180. doi:10.1111/1365-2745.14294.
Vancouver
1.
Blondeel H, Guillemot J, Martin-StPaul N, Druel A, Bilodeau-Gauthier S, Bauhus J, et al. Tree diversity reduces variability in sapling survival under drought. JOURNAL OF ECOLOGY. 2024;112(5):1164–80.
IEEE
[1]
H. Blondeel et al., “Tree diversity reduces variability in sapling survival under drought,” JOURNAL OF ECOLOGY, vol. 112, no. 5, pp. 1164–1180, 2024.
@article{01HXRPA2VJQGFGKWVWANG9DPQC,
  abstract     = {{1. Enhancing tree diversity may be important to fostering resilience to drought-related climate extremes. So far, little attention has been given to whether tree diversity can increase the survival of trees and reduce its variability in young forest plantations.

2. We conducted an analysis of seedling and sapling survival from 34 globally distributed tree diversity experiments (363,167 trees, 168 species, 3744 plots, 7 biomes) to answer two questions: (1) Do drought and tree diversity alter the mean and variability in plot-level tree survival, with higher and less variable survival as diversity increases? and (2) Do species that survive poorly in monocultures survive better in mixtures and do specific functional traits explain monoculture survival?

3. Tree species richness reduced variability in plot-level survival, while functional diversity (Rao's Q entropy) increased survival and also reduced its variability. Importantly, the reduction in survival variability became stronger as drought severity increased. We found that species with low survival in monocultures survived comparatively better in mixtures when under drought. Species survival in monoculture was positively associated with drought resistance (indicated by hydraulic traits such as turgor loss point), plant height and conservative resource-acquisition traits (e.g. low leaf nitrogen concentration and small leaf size).

4. Synthesis. The findings highlight: (1) The effectiveness of tree diversity for decreasing the variability in seedling and sapling survival under drought; and (2) the importance of drought resistance and associated traits to explain altered tree species survival in response to tree diversity and drought. From an ecological perspective, we recommend mixing be considered to stabilize tree survival, particularly when functionally diverse forests with drought-resistant species also promote high survival of drought-sensitive species.}},
  author       = {{Blondeel, Haben and  Guillemot, Joannes and  Martin-StPaul, Nicolas and  Druel, Arsene and  Bilodeau-Gauthier, Simon and  Bauhus, Juergen and  Grossiord, Charlotte and  Hector, Andrew and  Jactel, Herve and  Jensen, Joel and  Messier, Christian and  Muys, Bart and  Serrano-Leon, Hernan and  Auge, Harald and  Barsoum, Nadia and  Birhane, Emiru and  Bruelheide, Helge and  Cavender-Bares, Jeannine and  Chu, Chengjin and  Cumming, Jonathan R. and  Damtew, Abebe and  Eisenhauer, Nico and  Ferlian, Olga and  Fiedler, Sebastian and  Ganade, Gislene and  Godbold, Douglas L. and  Gravel, Dominique and  Hall, Jefferson S. and  Hoelscher, Dirk and  Hulvey, Kristin B. and  Koricheva, Julia and  Kreft, Holger and  Lapadat, Cathleen and  Liang, Jingjing and  Liu, Xiaojuan and  Meredieu, Celine and  Mereu, Simone and  Montgomery, Rebecca and  Morillas, Lourdes and  Nock, Charles and  Paquette, Alain and  Parker, John D. and  Parker, William C. and  Paterno, Gustavo B. and Perring, Michael P. and  Ponette, Quentin and  Potvin, Catherine and Reich, Peter B. and  Rentch, James and  Rewald, Boris and  Sanden, Hans and  Sinacore, Katherine and  Standish, Rachel J. and  Stefanski, Artur and  Tobin, Patrick C. and  van Breugel, Michiel and  Fagundes, Marina Vergara and  Weih, Martin and  Williams, Laura J. and  Zhou, Mo and  Scherer-Lorenzen, Michael and Verheyen, Kris and Baeten, Lander}},
  issn         = {{0022-0477}},
  journal      = {{JOURNAL OF ECOLOGY}},
  keywords     = {{climate change adaptation,functional traits,IDENT,relative extractable water (REW),standardized precipitation evapotranspiration index (SPEI),tree mortality,TreeDivNet,FUNCTIONAL DIVERSITY,FOREST RESILIENCE,HYDRAULIC SAFETY,BIODIVERSITY,RESISTANCE,ECOLOGY,RESTORATION,TOLERANCE,STABILITY,EMBOLISM}},
  language     = {{eng}},
  number       = {{5}},
  pages        = {{1164--1180}},
  title        = {{Tree diversity reduces variability in sapling survival under drought}},
  url          = {{http://doi.org/10.1111/1365-2745.14294}},
  volume       = {{112}},
  year         = {{2024}},
}

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