Y gwahaniaeth rhwng diwygiadau o "Rhestr Goch yr IUCN"

Ychwanegwyd 170 beit ,  6 mis yn ôl
Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.5
(Rescuing 2 sources and tagging 0 as dead.) #IABot (v2.0.8)
(Rescuing 1 sources and tagging 0 as dead.) #IABot (v2.0.8.5)
 
[[Delwedd:IUCN Red List 2007 cy.svg|bawd|dde|400px|Y canran o rywogaethau, mewn grwpiau, a restrir eu bod {{Color box|#CD3031|border=darkgray}}{{nbsp}}mewn perygl difrifol, {{Color box|#CD6531|border=darkgray}}{{nbsp}}mewn perygl, neu'n {{Color box|#D59D00|border=darkgray}}{{nbsp}}fregus ar Restr Goch yr IUCN yn 2007.]]
 
Mae'r Undeb Rhyngwladol yn ceisio adolygu eu rhestrau unwaith pob pum mlynedd.<ref>{{Cite web |url=http://www.iucnredlist.org/about/red-list-overview#redlist_authorities |title=Red List Overview |work=IUCN Red List |publisher=[[International Union for Conservation of Nature]] |accessdate=20 Mehefin 2012 |archive-date=2012-05-27 |archive-url=https://web.archive.org/web/20120527175928/http://www.iucnredlist.org/about/red-list-overview#redlist_authorities |url-status=dead }}</ref>
 
==Categoriau==