NOTE: THIS AND OTHER ID-BASED IUCN TEMPLATES ARE OBSELETE FOR ASSESSMENTS WITH NEW DOI-BASED URLS. As per the IUCN's current recommendations for using these new DOIs, the cite journal template can be used to cite an assessment as an electronic journal article, as follows for Myotis ater:

 | status_ref = <ref name=iucn>{{cite journal | authors = Wiles, G. | title = ''Myotis ater'' | journal = [[IUCN Red List of Threatened Species]] | volume= 2008 | page = e.T14144A4408913 | publisher = [[IUCN]] | year = 2008 | url = http://dx.doi.org/10.2305/IUCN.UK.2008.RLTS.T14144A4408913.en | accessdate = 17 September 2015}}</ref>

This will be displayed as:
1. Wiles, G. (2008). "Myotis ater". IUCN Red List of Threatened Species. IUCN. 2008: e.T14144A4408913. Retrieved 29 September 2015.{{cite journal}}: CS1 maint: uses authors parameter (link)

This citation style is preferable to the use of older IUCN templates, because a url based on a doi should be permanent, whereas a url based on an id number may not be. The year does appear twice, as both a date and volume number, as recommended.

As the DOI Wikipedia reference generator, Citation bot and reFill don't work in creating IUCN references of the new style, a new tool to facilitate this process would be useful, and a request for one has been posted here.

ORIGINAL DOCUMENTATION:
This template can be used to cite all versions of the IUCN Red List of Threatened Species. A user's guide and video are available.

The search engine is here.

Usage

Parameters

All of the following parameters are required except accessdate and assessors.

Parameter Description Example
 id The internal redlist id number. In http://www.iucnredlist.org/details/22718174/0, the id is 22718174, as in the above url.
 taxon The scientific name Passer domesticus
 assessors The person or group who assessed the status of the species, if specified BirdLife International
 assessment_year  The year the assessor evaluated the species. 2012
 version The version of the list 2012.2
 accessdate The date you downloaded the data 18 October 2012


Cut and paste

Vertical

{{IUCN
| id = 
| taxon = 
| assessors = 
| assessment_year = 
| version = 
| accessdate = 
}}

Horizontal

{{IUCN | id = | taxon = | assessors = | assessment_year = | version = | accessdate = }}

Notes

The suggested citation at the bottom of an IUCN details page contains all the data needed by this template except for the id, which is obtained from the page url. The output of this template is patterned after the IUCN suggested citation format and the template {{cite web}}.

The IUCN version is not to be confused with the criteria version (e.g. 3.1).

The {{{ref}}} parameter is supported to optionally allow ref names to be specified in Harvard references, for use in the {{citation}} template family (not to be confused with the {{cite}} template family). For example, use of |ref={{harvid}} or |ref={{SfnRef}} templates enables subsequent use of short-format templates like {{sfn}} (see Aardvark and Marsh shrew for examples of usage).

Output

{{IUCN
| id = 22718174
| taxon = ''Passer domesticus''
| assessors = [[BirdLife International]]
| assessment_year = 2012
| version = 2013.2
| accessdate = 22 November 2013
}}

yields:

BirdLife International (2012). "Passer domesticus". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 22 November 2013. {{cite web}}: Invalid |ref=harv (help)CS1 maint: uses authors parameter (link)

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