IUCN Red List ecological systems — rl

Retrieve species assessments based on their ecological systems. If code = NULL, it returns a list of available ecological systems. If code is provided, it retrieves assessments for species in the specified system(s).

Usage

rl_systems(
  code = NULL,
  year_published = NULL,
  latest = NULL,
  possibly_extinct = NULL,
  possibly_extinct_in_the_wild = NULL,
  scope_code = NULL,
  page = 1
)

Arguments

code: Character or Numeric. One or more system codes (e.g., "0", "1", "2"). Use rl_systems() to list available ecological systems.
year_published: Optional. Single or numeric vector of years to filter assessments by publication year.
latest: Optional. Logical. If TRUE, return only the latest assessment per species.
possibly_extinct: Optional. Logical. Filter for species flagged as possibly extinct.
possibly_extinct_in_the_wild: Optional. Logical. Filter for species possibly extinct in the wild.
scope_code: Optional. Character. One or more scope codes to filter assessments.
page: Optional. Integer vector. Specify one or more page numbers to fetch. If NULL or NA, all pages will be fetched automatically.

Value

A tibble containing ecological systems or species assessments.

Examples

if (FALSE) { # \dontrun{
# List all ecological systems
rl_systems()

# Get terrestrial species assessments (code 0)
rl_systems(code = 0)

# Get marine species assessments published since 2021
rl_systems(
  code = "2",
  year_published = 2021:2023
)
} # }