1 Center for Tobacco Research and Intervention, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, Wisconsin.Global Ecology and Biogeography, 27, 1402-1411. Tundra Trait Team: A database of plant traits spanning the tundra biome. South African National Research Fund SANAPĬarl Tryggers stiftelse för vetenskaplig forskningījorkman, A.D., Myers-Smith, I.H., Elmendorf, S.C., Normand, S., Thomas, H.J., Alatalo, J.M. Natural Sciences and Engineering Research Council of Canada

Software format: csv file and GitHub repository with data cleaning scripts in R contribution to TRY plant trait database (to be included in the next version release. Most observations are on individuals (86%), while the remainder represent plot or site means or maximums per species. Major taxa and level of measurement: Trait measurements were made on 978 terrestrial vascular plant species growing in tundra habitats. A small number of sites have repeated trait measurements at two or more time periods.

Time period and grain: All data were collected between 19. More than 99% of observations are georeferenced. Spatial location and grain: Measurements were collected in tundra habitats in both the Northern and Southern Hemispheres, including Arctic sites in Alaska, Canada, Greenland, Fennoscandia and Siberia, alpine sites in the European Alps, Colorado Rockies, Caucasus, Ural Mountains, Pyrenees, Australian Alps, and Central Otago Mountains (New Zealand), and sub‐Antarctic Marion Island. The most frequently measured traits (> 1,000 observations each) include plant height, leaf area, specific leaf area, leaf fresh and dry mass, leaf dry matter content, leaf nitrogen, carbon and phosphorus content, leaf C:N and N:P, seed mass, and stem specific density. Main types of variable contained: The database contains 91,970 measurements of 18 plant traits.

This dataset can be used to address theoretical questions about plant strategy and trade‐offs, trait–environment relationships and environmental filtering, and trait variation across spatial scales, to validate satellite data, and to inform Earth system model parameters. Motivation: The Tundra Trait Team (TTT) database includes field‐based measurements of key traits related to plant form and function at multiple sites across the tundra biome.

How by Michelle Iturrate