Journal
NEW PHYTOLOGIST
Volume 205, Issue 1, Pages 79-96Publisher
WILEY
DOI: 10.1111/nph.13001
Keywords
bioclimatic niche; climatic drivers; dry mass per unit area; leaf economics spectrum; leaf physiognomy; nitrogen; photosynthesis; trait relationships
Categories
Funding
- Estonian Ministry of Science and Education [IUT-8-3]
- European Commission through the European Regional Fund (the Center of Excellence in Environmental Adaptation)
Ask authors/readers for more resources
The leaf economics spectrum is a general concept describing coordinated variation in foliage structural, chemical and physiological traits across resource gradients. Yet, within this concept, the role of within-species variation, including ecotypic and plastic variation components, has been largely neglected. This study hypothesized that there is a within-species economics spectrum within the general spectrum in the evergreen sclerophyll Quercus ilex which dominates low resource ecosystems over an exceptionally wide range. An extensive database of foliage traits covering the full species range was constructed, and improved filtering algorithms were developed. Standardized data filtering was deemed absolutely essential as additional variation sources can result in trait variation of 10-300%, blurring the broad relationships. Strong trait variation, c. two-fold for most traits to up to almost an order of magnitude, was uncovered. Although the Q.ilex spectrum is part of the general spectrum, within-species trait and climatic relationships in this species partly differed from the overall spectrum. Contrary to world-wide trends, Q.ilex does not necessarily have a low nitrogen content per mass and can increase photosynthetic capacity with increasing foliage robustness. This study argues that the within-species economics spectrum needs to be considered in regional- to biome-level analyses.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available