Fraction of species threatened by extinction as of 2005

Range 1/3 of all amphibians: 1/5 of all mammals: 1/8 of all birds
Organism Various
Reference Food and agriculture organization (FAO) of the united nations, Rome 2006 Livestock's long shadow link p.5 right column 2nd paragraph
Primary Source Millenium Ecosystem Assesment MEA 2005: Ecosystems and human well being: synthesis, Washington DC Island press
Comments This assessment is based on known species and it is estimated that 90% or more of all existing species have not been catalouged yet.
Entered by Uri M
ID 106613