“The variability of life from all sources, including within species (genetic diversity), between species, and of ecosystems” (Matthews, 2001).
http://www.greenfacts.org/en/biodiversity/l-3/1-define-biodiversity.htm
Conserving Biodiversity:
Hotpots: http://www.biodiversityhotspots.org/Pages/default.aspx
Hotspot analysis from BBC News
http://news.bbc.co.uk/1/hi/sci/tech/3707888.stm
Radio 4 program - "Counting Creatures"
http://www.bbc.co.uk/radio4/science/pip/ee1ef/
