Courtney Humphries, reporting for the Boston Globe:
As researchers delve into this world, they’re uncovering some surprises—like the unusual nitrogen cycles caused by homeowners raking up leaves in the fall, or the fast-growing urban trees. (BU ecologist Lucy Hutyra isn’t sure this is such a good thing: “Trees may be growing faster, but they could be dying faster,” she points out.) They are also, gingerly, suggesting that this gives us a new way to think about the future of cities. Living systems don’t just exist: They evolve, responding to changes in the rules that govern their existence. And as we try to design more sustainable cities for the future, understanding the full picture of urban ecosystems just might give us a smarter way to shape them.
While the study of urban ecology is old hat to regular PSM readers, Humphries’s piece is a great overview of the field, covering some genuinely interesting research.