Data from: Structural and Defensive Roles of Angiosperm Leaf Venation Network Reticulation Across an Andes-Amazon Elevation Gradient

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Data from: Structural and Defensive Roles of Angiosperm Leaf Venation Network Reticulation Across an Andes-Amazon Elevation Gradient

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Description

1.The network of minor veins of angiosperm leaves may include loops (reticulation). Variation in network architecture has been hypothesized to have hydraulic and also structural and defensive functions. 2.We measured venation network trait space in eight dimensions for 136 biomass-dominant angiosperm tree species along a 3,300 m elevation gradient in southeastern Peru. We then examined the relative importance of multiple ecological, and evolutionary predictors of reticulation. 3.Variation in minor venation network reticulation was constrained to three axes. These axes described branching vs. reconnecting veins, elongated vs. compact areoles, and high vs. low density veins. Variation in the first two axes was predicted by traits related to mechanical strength and secondary compounds, and in the third axis by site temperature. 4.Synthesis. Defensive and structural factors primarily explain variation in multiple axes of reticulation, with a smaller role for climate-linked hydraulic factors. These results suggest that venation network reticulation may be determined more by species interactions than by hydraulic functions.

Publication Date

2-6-2019

Keywords

damage resilience, damage resistance, leaf performance, loop, redundancy, Reticulation, trait space, venation network

Disciplines

Botany

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Usage Notes

Trait data

Venation, trait, and climate data for tree species on an Andes-Amazon transect in southeastern Peru (CHAMBASA project). Data S1.csv

Funding

National Science Foundation, Award: DEB-1209287

Copyright

This work is licensed under a CC0 1.0 Universal (CC0 1.0) Public Domain Dedication license.

Data from: Structural and Defensive Roles of Angiosperm Leaf Venation Network Reticulation Across an Andes-Amazon Elevation Gradient

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