Biospheres, Controlled Ecosystems, and Life Support Systems

As mankind moves out into the wilds of Space, long-term self-sufficient ecosystems become very important. Here are various links I've found on the Web related to this topic.

Biosphere II in Arizona (funded by billionaire Ed Bass)

CELSS - Controlled Ecological Life Support Systems

Engineered Closed/Controlled EcoSystem (ECCES)

Bioregenerative Life Support Systems

Environmental Control and Life Support System (ECLSS)

Note that different groups within NASA use CELSS and ECLSS. Question is, do they mean the same thing? I get the sense that ECLSS is used for the brute force approach currently used, whereas CELSS is used for the more agricultural approach.

ECLS and Human Space Flight

Mesocosm - Simulations of Aquatic Ecosystems

NRL's Mesocosm Facility

Life Support Technology

Hydroponics

Mini-farm for Mars