The connectivity of Haifa urban open space network

Marina Toger, Dan Malkinson, Itzhak Benenson, Daniel Czamanski

Research output: Contribution to journalArticlepeer-review

Abstract

Urban open spaces are considered as spatial residuals of the expansion of built areas. The environmental impact of the resulting land-cover pattern and associated ecosystem services are frequently evaluated at a crude spatial resolution only. However, wild animals use remaining interconnected fine-grain open spaces as an infrastructure for movement. In this paper, we traced the evolution of an open-space system in Haifa, Israel, and examined the impact of urban morphology on size and distribution of open spaces at different spatial resolutions. At a 30 m resolution, our analysis indicated fragmentation and increasing partial elimination of open spaces. Over time the connectivity declined at a diminishing rate, yet the network did not disintegrate into separate components. The evolution analysis implied that in crude resolution, the open space network is threatened. At a 5 m resolution, our analysis showed that Haifa remains porous to animal movement. Using combined multiple least-cost paths through the urban landscape of heterogeneous permeability, we illustrated extensive connectivity among open spaces. Backyards and other urban in-between spaces complemented the seminatural open-space network connectivity, enabling wildlife movement between habitat patches and thus survival in an urbanized environment.

Original languageEnglish
Pages (from-to)848-870
Number of pages23
JournalEnvironment and Planning B: Planning and Design
Volume43
Issue number5
DOIs
StatePublished - 1 Sep 2016

Bibliographical note

Funding Information:
This study was supported by Canadian institute of Health Research operating grant no. 130366, National Institute of Healthy (NIH)/EB017928, American Heart Association grants 20380798 and 14PRE20380810, as well as a Biogen fellowship funding award.

Publisher Copyright:
© 2015, © The Author(s) 2015.

Keywords

  • Urban
  • connectivity
  • dynamics
  • morphology
  • network
  • open space

ASJC Scopus subject areas

  • Geography, Planning and Development
  • Environmental Science (all)

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