Controls on foliar nutrient and aluminium concentrations in a tropical tree flora

phylogeny, soil chemistry and interactions among elements

Faizah Metali, Kamariah Abu Salim, Kushan Tennakoon, David F R P Burslem

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Foliar elemental concentrations are predictors of life-history variation and contribute to spatial patterns in biogeochemical cycling. We examined the contributions of habitat association, local soil environment, and elemental interactions to variation in foliar elemental concentrations in tropical trees using methods that account for phylogeny. We sampled top-soils and leaves of 58 tropical trees in heath forest (HF) on nutrient-poor sand and mixed dipterocarp forest (MDF) on nutrient-rich clay soils. A phylogenetic generalized least squares method was used to determine how foliar nutrient and aluminium (Al) concentrations varied in response to habitat distribution, soil chemistry and other elemental concentrations. Foliar nitrogen (N) and Al concentrations were greater for specialists of MDF than for specialists of HF, while foliar calcium (Ca) concentrations showed the opposite trend. Foliar magnesium (Mg) concentrations were lower for generalists than for MDF specialists. Foliar element concentrations were correlated with fine-scale variation in soil chemistry in phylogenetically controlled analyses across species, but there was limited within-species plasticity in foliar elemental concentrations. Among Al accumulators, foliar Al concentration was positively associated with foliar Ca and Mg concentrations, and negatively associated with foliar phosphorus (P) concentrations. The Al-accumulation trait and relationships between foliar elemental and Al concentrations may contribute to species habitat partitioning and ecosystem-level differences in biogeochemical cycles.

Original languageEnglish
Pages (from-to)280-292
Number of pages13
JournalNew Phytologist
Volume205
Issue number1
Early online date19 Aug 2014
DOIs
Publication statusPublished - Jan 2015

Fingerprint

soil chemistry
Phylogeny
Aluminum
aluminum
Soil
flora
Food
Dipterocarpaceae
Ecosystem
phylogeny
nutrients
Magnesium
magnesium
habitats
Calcium
calcium
edaphic factors
Least-Squares Analysis
clay soils
Phosphorus

Keywords

  • aluminium (Al) accumulators
  • foliar elemental and Al concentrations
  • heath forests
  • mixed dipterocarp forests
  • phylogeny
  • soil nutrient concentrations
  • tropical rain forests

Cite this

Controls on foliar nutrient and aluminium concentrations in a tropical tree flora : phylogeny, soil chemistry and interactions among elements. / Metali, Faizah; Abu Salim, Kamariah; Tennakoon, Kushan; Burslem, David F R P.

In: New Phytologist, Vol. 205, No. 1, 01.2015, p. 280-292.

Research output: Contribution to journalArticle

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abstract = "Foliar elemental concentrations are predictors of life-history variation and contribute to spatial patterns in biogeochemical cycling. We examined the contributions of habitat association, local soil environment, and elemental interactions to variation in foliar elemental concentrations in tropical trees using methods that account for phylogeny. We sampled top-soils and leaves of 58 tropical trees in heath forest (HF) on nutrient-poor sand and mixed dipterocarp forest (MDF) on nutrient-rich clay soils. A phylogenetic generalized least squares method was used to determine how foliar nutrient and aluminium (Al) concentrations varied in response to habitat distribution, soil chemistry and other elemental concentrations. Foliar nitrogen (N) and Al concentrations were greater for specialists of MDF than for specialists of HF, while foliar calcium (Ca) concentrations showed the opposite trend. Foliar magnesium (Mg) concentrations were lower for generalists than for MDF specialists. Foliar element concentrations were correlated with fine-scale variation in soil chemistry in phylogenetically controlled analyses across species, but there was limited within-species plasticity in foliar elemental concentrations. Among Al accumulators, foliar Al concentration was positively associated with foliar Ca and Mg concentrations, and negatively associated with foliar phosphorus (P) concentrations. The Al-accumulation trait and relationships between foliar elemental and Al concentrations may contribute to species habitat partitioning and ecosystem-level differences in biogeochemical cycles.",
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N1 - © 2014 The Authors New Phytologist © 2014 New Phytologist Trust. This research work was funded by the Brunei government (Brunei In-Service Training Scholarship to F.M.) and the University of Aberdeen. We thank the Department of Forestry, Brunei Darussalam and the Universiti Brunei Darussalam for giving us access to work in the three permanent plots in the forest reserves of Brunei Darussalam. We are grateful to David Robinson, Francis Brearley and three anonymous reviewers for their constructive comments on a previous version of this paper.

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