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. 2013 Mar 7;3(4):1065–1078. doi: 10.1002/ece3.520

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© 2013 Published by Blackwell Publishing Ltd.

Re-use of this article is permitted in accordance with the Creative Commons Deed, Attribution 2.5, which does not permit commercial exploitation.

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Principal component analysis (PCA) on eight leaf and root traits representative of plant nutrient and carbon economics for all tree populations (15 plots × 3 species). Plot numbers are indicated for each population of Pittosporum crassifolium (•), Coprosma macrocarpa (), and Melicytus ramiflorus (○). The x-axis, summarizing 58% of total trait variation, ordinates tree populations from those showing the most resource-conservative traits (left) to those displaying the most resource-acquisitive ones (right). Results of paired-samples t-tests between the x-axis scores of Coprosma and Pittosporum and Coprosma and Melicytus show consistent rankings of the three tree species across all plots. Species centroids are displayed as diamonds. Plant traits: specific leaf area (SLA), specific root length (SRL), leaf and root dry matter content (LDMC, RDMC), leaf and root nitrogen (LNC, RNC) and phosphorus concentrations (LPC, RPC).

Inline graphic — Principal component analysis (PCA) on eight leaf and root traits representative of plant nutrient and carbon economics for all tree populations (15 plots × 3 species). Plot numbers are indicated for each population of Pittosporum crassifolium (•), Coprosma macrocarpa (), and Melicytus ramiflorus (○). The x-axis, summarizing 58% of total trait variation, ordinates tree populations from those showing the most resource-conservative traits (left) to those displaying the most resource-acquisitive ones (right). Results of paired-samples t-tests between the x-axis scores of Coprosma and Pittosporum and Coprosma and Melicytus show consistent rankings of the three tree species across all plots. Species centroids are displayed as diamonds. Plant traits: specific leaf area (SLA), specific root length (SRL), leaf and root dry matter content (LDMC, RDMC), leaf and root nitrogen (LNC, RNC) and phosphorus concentrations (LPC, RPC).