NDLI: Graph theory in action: evaluating planned highway tracks based on connectivity measures

Content Provider	Springer Nature Link
Author	Vasas, Vera Magura, Tibor Jordán, Ferenc Tóthmérész, Béla
Copyright Year	2009
Abstract	Maintaining connectivity among local populations in a fragmented landscape is crucial for the survival of many species. For isolated habitat patches, stochastic fluctuations and reduced gene flow can lead to high risk of extinction. The connectivity of the landscape is especially crucial for the carabid species living in the fragmented forests of the Bereg plain (NE Hungary and W Ukraine) because a highway will be constructed through the plain. Our purpose is to (1) evaluate the impacts of three possible highway tracks, (2) suggest a solution that is realistic with less impact on connectivity than other plans and (3) discuss how to decrease the disadvantageous effects of each track. Our results, based on a network analysis of landscape graph of patches and ecological corridors, indicate that the intended highway could have deleterious consequences on forest-living carabids. Relatively simple actions, like the establishment of stepping stones, could compensate for the loss of habitat connectivity and promote the survival of carabids, or minor modifications in one possible track could diminish its adverse effects. While many other studies would be needed for a comprehensive assessment of the biotic impact of the highway, we provide an example on the usefulness of network analysis for land use management.
Starting Page	581
Ending Page	586
Page Count	6
File Format	PDF
ISSN	09212973
Journal	Landscape Ecology
Volume Number	24
Issue Number	5
e-ISSN	15729761
Language	English
Publisher	Springer Netherlands
Publisher Date	2009-04-02
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Habitat network Landscape graph Carabidae Bereg plain Plant Sciences Ecology Forestry Plant Ecology Landscape Ecology Forestry Management
Content Type	Text
Resource Type	Article
Subject	Geography, Planning and Development Ecology Nature and Landscape Conservation

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Carabids (Coleoptera: Carabidae) in a forest patchwork: a connectivity analysis of the Bereg Plain landscape graph

Connectivity measures: a review

Effects of different matrix representations and connectivity measures on habitat network assessments

Graph-theoretic connectivity measures: what do they tell us about connectivity?

Integrating graph-based connectivity metrics into species distribution models

Two measures of landscape-graph connectivity: assessment across gradients in area and configuration

Comparison and development of new graph-based landscape connectivity indices: towards the priorization of habitat patches and corridors for conservation

Connectivity change in habitat networks

Quantifying landscape connectivity through the use of connectivity response curves

Graph theory in action: evaluating planned highway tracks based on connectivity measures

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Carabids (Coleoptera: Carabidae) in a forest patchwork: a connectivity analysis of the Bereg Plain landscape graph

Connectivity measures: a review

Effects of different matrix representations and connectivity measures on habitat network assessments

Graph-theoretic connectivity measures: what do they tell us about connectivity?

Integrating graph-based connectivity metrics into species distribution models

Two measures of landscape-graph connectivity: assessment across gradients in area and configuration

Comparison and development of new graph-based landscape connectivity indices: towards the priorization of habitat patches and corridors for conservation

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Graph theory in action: evaluating planned highway tracks based on connectivity measures