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R client for various sources of species trait data.


What is a trait? A “trait” for the purposes of this package is broadly defined as an aspect of a species that can be described or measured, such as physical traits (size, length, height, color), behavioral traits (running speed, etc.), and even variables that make up the niche of the species (e.g., habitat).

Included in traits with the associated function prefix or function name:

Souce Function prefix Link
BETYdb betydb_
NCBI ncbi_
Encylopedia of Life traitbank_
Birdlife International birdlife_
LEDA Traitbase leda_
Zanne et al. plant dataset tr_zanne
Amniote life history dataset tr_ernest

Talk to us on the issues page ( if you know of a source of traits data with an API, and we’ll see about including it.


Stable CRAN version

Or development version from GitHub



  • Please report any issues or bugs.
  • License: MIT
  • Get citation information for traits in R doing citation(package = 'traits')
  • Please note that this package is released with a Contributor Code of Conduct. By contributing to this project, you agree to abide by its terms.