sedgwicktraits: Plant functional traits for annual plants at UC Sedgwick...
In akleinhesselink/sedgwicktraits: Sedgwick Annual Plant Traits

A dataset containing the average functional trait values for 59 species. Species are identified using the standard USDA code. Functional traits are the average across several individual plants measured (usually 5-10). Functional traits were collected for a study comparing functional trait differences to competitive outcomes across 20 species ("TAPIOCA" data). Another set of functional traits were collected for a study of trait differences across 24 different sites from across the reserve ("2017" data).

1	sedgwicktraits

A data frame with 65 rows and 24 variables:

USDA_symbol: Abbreviated USDA code for each species.
leaf_size: area of a single leaf (cm²)
SLA: specific leaf area (g per cm²)
LDMC: leaf dry matter content per fresh weight (mg dry per g fresh)
LAI: leaf area index, total leaf area divided by the projected canopy area (unitless)
LAR: leaf are ratio, total leaf area divided by the total aboveground dry mass (cm²/g)
seed_mass: seed mass (g), average comes from weighing ~100 seeds
max_height: 95 percentile of plant heights (cm), percentiles come from 40 or more individual plants measured in the field
SRL: specific root length (m per g)
relative_spread: plant diameter when viewed from above divided by plant height (unitless)
projected_area: average projected canopy area of plant, as area of oval with each plant's longest axis and axis perpendicular to that providing the orthoganal dimensions.
phenology: day of year at which approximately 50% of individual plants begin fruiting in the field (doy)
foliar_N: leaf Nitrogen as a percent of total leaf mass (%)
CN_ratio: ratio of leaf carbon to leaf nitrogen (unitless)
d13C: relative enrichment of leaf carbon with carbon-13 isotopes (δ 13 C ‰)
d15N: relative enrichment of leaf nitrogen with nitrogen-15 isotopes (δ 15 N ‰)
notes: notes on data collection
seed_mass_data_source: origin of the seed mass data, some was collected in 2017, some collected for TAPIOCA and some is from reported values in Molinari et al.
max_height_data_source: origin of the maximum plant height data
dataset: whether the species data was collected in 2017 or for the earlier TAPIOCA project
turgor_loss_point: Leaf osmotic potential was measured in the lab and then used to calculate turgor loss point
seed_size: seed volume (mm³)
rooting_depth: average maximum rooting depth collected by Godoy for TAPIOCA
leaf_pH: leaf pH