IUCN Red List research categories — rl

Retrieve species assessments based on their research needs categories. If code = NULL, it returns a list of available research categories. If code is provided, it retrieves assessments for species with the specified research need(s).

Usage

rl_research(
  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 research category codes (e.g., "1", "2"). Use rl_research() to list available research categories.
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 research categories or species assessments.

Examples

if (FALSE) { # \dontrun{
# List all research categories
rl_research()

# Get species needing population trends research (code 3_1)
rl_research(code = "3_1")

# Get species needing life history & ecology research published since 2019
rl_research(
  code = "1_3",
  year_published = 2019:2023
)
} # }