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Add wood density (Global Wood Density Database v2)

Source: R/add-gwdd.R
add_gwdd.Rd

Joins species-level wood density to a taxify() result by looking up accepted_name. Wood density is reported as wood specific gravity (oven-dry mass / green volume), dimensionless and numerically equal to g/cm3.

Usage

add_gwdd(x, cols = NULL, verbose = TRUE)

Arguments

x

A data.frame returned by taxify().

cols

Which columns to attach: NULL (default) the curated set, "all" every column the source carries, or a character vector of names. See enrichment_cols.

verbose

Logical. Default TRUE.

Value

The same data.frame with additional columns:

gwdd_wood_density_g_cm3

Species-mean wood density (g/cm3).

gwdd_wood_density_trunk_g_cm3

Trunk wood density (g/cm3).

gwdd_wood_density_branch_g_cm3

Branch wood density (g/cm3).

gwdd_n_measurements

Number of underlying measurements.

Details

Source: Global Wood Density Database v2 (Fischer et al. 2026, New Phytologist, CC BY 4.0). Coverage: ~17.3k species. Bark density is not part of the aggregated source and is not included.

References

Fischer FJ et al. (2026) The Global Wood Density Database version 2. New Phytologist. doi:10.1111/nph.70860

Examples

if (FALSE) { # \dontrun{
taxify("Quercus robur", backbone = "gbif") |>
  add_gwdd()
} # }