 Another entry in the Encyclopedia of Biodiversity, Chan and Satterfield’s (2013) “Justice, Equity and Biodiversity”, supports this idea, in linking biodiversity conservation to justice for future generations. However, “biodiversity” is left undefined, and seen as something that exists within ecosystems that maintains ecosystems services for future generations. The focus on ecosystem services (where “biodiversity” often has ecological interpretations; see section below) means that the value of variety itself is left unstated by the authors.