We're talking desert here, not well-developed real estate, and it's very fragile ecology.

But a combination of lean natural resources, poor access to transportation and fragile tropical ecology explain one percentage point.

And yes, a balanced if fragile marine ecology along the ring islands.

It threatens the fragile ecology of the town.

"Who knows what impact building the superstores will have on this fragile ecology?"

It's hard to believe how fragile the ecology here is; they're one thin root layer away from losing whole mountainsides to mud slides every year.

They fear that a growth this year could cause irreversible damage to the bay's fragile ecology.

The park was created as a measure to protect the fragile ecology of these sand islands.

But the lesson had been learned; the fragile ecology of a single world could be easily unbalanced.

Wresting subsistence for 13 million people from Niger's fragile ecology is something akin to a puzzle.