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The connectivity of Haifa urban open space network
(Marina Toger)ORCID iD: 0000-0003-4903-6971
2016 (English)In: Environment and Planning, B: Planning and Design, ISSN 0265-8135, E-ISSN 1472-3417Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2016.
Keywords [en]
Urban, open space, network, morphology, dynamics, connectivity
National Category
Environmental Sciences Economic Geography Human Geography Ecology Other Social Sciences not elsewhere specified
Identifiers
URN: urn:nbn:se:uu:diva-377252OAI: oai:DiVA.org:uu-377252DiVA, id: diva2:1289268
Available from: 2019-02-16 Created: 2019-02-16 Last updated: 2019-02-16

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