Cargando…
Leaf economics fundamentals explained by optimality principles
The life span of leaves increases with their mass per unit area (LMA). It is unclear why. Here, we show that this empirical generalization (the foundation of the worldwide leaf economics spectrum) is a consequence of natural selection, maximizing average net carbon gain over the leaf life cycle. Ana...
Autores principales: | , , , , , , , , |
---|---|
Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
American Association for the Advancement of Science
2023
|
Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9848425/ https://www.ncbi.nlm.nih.gov/pubmed/36652527 http://dx.doi.org/10.1126/sciadv.add5667 |
_version_ | 1784871706959020032 |
---|---|
author | Wang, Han Prentice, I. Colin Wright, Ian J. Warton, David I. Qiao, Shengchao Xu, Xiangtao Zhou, Jian Kikuzawa, Kihachiro Stenseth, Nils Chr. |
author_facet | Wang, Han Prentice, I. Colin Wright, Ian J. Warton, David I. Qiao, Shengchao Xu, Xiangtao Zhou, Jian Kikuzawa, Kihachiro Stenseth, Nils Chr. |
author_sort | Wang, Han |
collection | PubMed |
description | The life span of leaves increases with their mass per unit area (LMA). It is unclear why. Here, we show that this empirical generalization (the foundation of the worldwide leaf economics spectrum) is a consequence of natural selection, maximizing average net carbon gain over the leaf life cycle. Analyzing two large leaf trait datasets, we show that evergreen and deciduous species with diverse construction costs (assumed proportional to LMA) are selected by light, temperature, and growing-season length in different, but predictable, ways. We quantitatively explain the observed divergent latitudinal trends in evergreen and deciduous LMA and show how local distributions of LMA arise by selection under different environmental conditions acting on the species pool. These results illustrate how optimality principles can underpin a new theory for plant geography and terrestrial carbon dynamics. |
format | Online Article Text |
id | pubmed-9848425 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2023 |
publisher | American Association for the Advancement of Science |
record_format | MEDLINE/PubMed |
spelling | pubmed-98484252023-01-30 Leaf economics fundamentals explained by optimality principles Wang, Han Prentice, I. Colin Wright, Ian J. Warton, David I. Qiao, Shengchao Xu, Xiangtao Zhou, Jian Kikuzawa, Kihachiro Stenseth, Nils Chr. Sci Adv Earth, Environmental, Ecological, and Space Sciences The life span of leaves increases with their mass per unit area (LMA). It is unclear why. Here, we show that this empirical generalization (the foundation of the worldwide leaf economics spectrum) is a consequence of natural selection, maximizing average net carbon gain over the leaf life cycle. Analyzing two large leaf trait datasets, we show that evergreen and deciduous species with diverse construction costs (assumed proportional to LMA) are selected by light, temperature, and growing-season length in different, but predictable, ways. We quantitatively explain the observed divergent latitudinal trends in evergreen and deciduous LMA and show how local distributions of LMA arise by selection under different environmental conditions acting on the species pool. These results illustrate how optimality principles can underpin a new theory for plant geography and terrestrial carbon dynamics. American Association for the Advancement of Science 2023-01-18 /pmc/articles/PMC9848425/ /pubmed/36652527 http://dx.doi.org/10.1126/sciadv.add5667 Text en Copyright © 2023 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). https://creativecommons.org/licenses/by-nc/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (https://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. |
spellingShingle | Earth, Environmental, Ecological, and Space Sciences Wang, Han Prentice, I. Colin Wright, Ian J. Warton, David I. Qiao, Shengchao Xu, Xiangtao Zhou, Jian Kikuzawa, Kihachiro Stenseth, Nils Chr. Leaf economics fundamentals explained by optimality principles |
title | Leaf economics fundamentals explained by optimality principles |
title_full | Leaf economics fundamentals explained by optimality principles |
title_fullStr | Leaf economics fundamentals explained by optimality principles |
title_full_unstemmed | Leaf economics fundamentals explained by optimality principles |
title_short | Leaf economics fundamentals explained by optimality principles |
title_sort | leaf economics fundamentals explained by optimality principles |
topic | Earth, Environmental, Ecological, and Space Sciences |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9848425/ https://www.ncbi.nlm.nih.gov/pubmed/36652527 http://dx.doi.org/10.1126/sciadv.add5667 |
work_keys_str_mv | AT wanghan leafeconomicsfundamentalsexplainedbyoptimalityprinciples AT prenticeicolin leafeconomicsfundamentalsexplainedbyoptimalityprinciples AT wrightianj leafeconomicsfundamentalsexplainedbyoptimalityprinciples AT wartondavidi leafeconomicsfundamentalsexplainedbyoptimalityprinciples AT qiaoshengchao leafeconomicsfundamentalsexplainedbyoptimalityprinciples AT xuxiangtao leafeconomicsfundamentalsexplainedbyoptimalityprinciples AT zhoujian leafeconomicsfundamentalsexplainedbyoptimalityprinciples AT kikuzawakihachiro leafeconomicsfundamentalsexplainedbyoptimalityprinciples AT stensethnilschr leafeconomicsfundamentalsexplainedbyoptimalityprinciples |