Circum-Arctic distribution of chemical anti-herbivore compounds arctic shrubs
Cite this dataset
Lindén, Elin et al. (2022). Circum-Arctic distribution of chemical anti-herbivore compounds arctic shrubs [Dataset]. Dryad. https://doi.org/10.5061/dryad.9p8cz8whd
Abstract
Methods
Chemical defense compound concentrations was quantified using LC-MS metabolomic analyses. In-vitro digestibility was measured as in-vitro organic matter digestibility (IVOMD) by incubating dry leaf material in cattel rumen fluid at 38°C for 96 hours an then calculating the proportion of digested organic material. Leaf nitrogen and carbin content was measured using an elemental analyser interfaced to a continous flow isotope ratio mass spectrometer. Leaf chemisty and digestibility were all measured using dired and ground leaf material. Resin gland density was calculated as number of resin glands per mm2 on 15 mm twig segment starting 20 mm from the twig top on current annual growth (CAG) twigs. Specific Leaf Area was measured as a proxy (SLA-P) by calculating dry leaf area/dry mass. Environmental data was retrieved as interpolated grid data with a resolution of 30 arc seconds (~1 km) from the Worlclim database and then extracted using GIS software ArcMAP.
Usage notes
The data file includes metadata and a sheet with data explanation, including units for all measures.
Funding