Cities are ecological spaces. They are ecosystems packed with trees and vegetation that comprise an urban forest, birds, insects, small mammals, water and more. They are connected to suburban and rural areas along ecological gradients. And human well-being and effective urban design is intimately connected to the health of urban ecosystems. This Blogspace: www.thenatureofcities.com/ is a collective of writers and is devoted to conversation about cities as ecological spaces … about the nature of cities.