Ecosystem as Place; Ecosystem as Network

The most frequently cited definition of the ecosystem concept owes its origin to Sir Arthur G. Tansley in 1935 (Pickett and Grove 2009).  It has proven to be a very flexible concept, and can be applied to any scale that includes aggregations of physical environment and organisms, plus the interactions among all physical and biological […]

The Kind of Solution A City Is

A while ago I wrote about Jane Jacobs’ insight that cities were complex systems[i].  The stone that she dropped in the urban pond in 1961 has rippled widely, and the ideas of cities as complex adaptive systems, with emergent properties, good and bad resilience, and non-linear dynamics now guide much cutting edge urban research. Of […]