New Ecological Framework Abandons Urban-Rural Binary for a Dynamic Three-Dimensional Continuum Model

Ecologists suggest a three-way mixture of urban, rural, and wild features is needed to manage modern landscapes and adapt to climate change.

By: AXL Media

Published: Apr 28, 2026, 6:18 AM EDT

Source: Information for this report was sourced from EurekAlert!

Redefining the Boundaries of Modern Landscapes

A new scientific perspective published in npj Urban Sustainability argues that the traditional distinction between city centers and the countryside is no longer sufficient for effective land management. Lead author Steward Pickett, a scientist emeritus at the Cary Institute of Ecosystem Studies, suggests that urban sprawl into suburbs and exurbs has created a landscape where one can no longer define where the city ends and the rural begins. Instead of a simple binary, the research team proposes a "continuum of urbanity" that accounts for the constant mixture of urban, rural, and wild features within any given area.

The Mosaic Approach to Ecological Management

The proposed framework describes modern environments as a patchwork or mosaic rather than discrete zones. This model allows for a location to be characterized by specific proportions, such as a site being 70 percent urban and 30 percent rural, while sitting adjacent to a wild-mixed area. This perspective is designed to help planners and ecologists understand the functional entanglements of human ecosystems. By moving away from black-and-white dichotomies, city managers can better address how different patches interact to influence the daily lives and social relationships of residents.

Connectivity in the Mid-Hudson Valley Example

The researchers used New York’s Mid-Hudson Valley to illustrate how physical and social connectivity blurs regional lines. Despite being composed of small towns and forests, the region is inextricably linked to New York City through infrastructure, migration, and economic flow. The study highlights how events like the COVID-19 pandemic drove urban populations into rural areas, shifting property values and land use patterns. Furthermore, the accidental introduction of forest pests through international trade demonstrates how global-scale connectivity can impact seemingly remote rural ecosystems.