IDEAS home Printed from https://ideas.repec.org/a/eee/ecomod/v392y2019icp1-5.html
   My bibliography  Save this article

gDefrag: A graph-based tool to help defragmenting landscapes divided by linear infrastructures

Author

Listed:
  • Mestre, F.
  • Ascensão, F.
  • Barbosa, A.M.

Abstract

Habitat fragmentation is a major biodiversity threat. Linear infrastructures (e.g. roads) hamper the movement of individuals and cause non-natural mortality. Roadkill hotspots have been used to define priority areas for road effect mitigation, but data availability and reliability is an issue, particularly on wide spatial scales. Additionally, mitigating the whole infrastructure network is unfeasible. Expedite methods are required to address such challenges. We present the gDefrag package, a graph-based approach that builds on habitat value and accessibility after simplifying the landscape as a graph. Its advantages include not requiring roadkill or movement data, and providing effective methods to deliver reliable information, allowing landscape managers to address landscape fragmentation overall. gDefrag prioritizes roads which should be targeted first to defragment the landscape. The software includes a user-friendly manual and currently implements four prioritization criteria: habitat quality, maximum number of inter-habitat paths, overall landscape connectivity, and simultaneously larger and higher-quality habitats.

Suggested Citation

  • Mestre, F. & Ascensão, F. & Barbosa, A.M., 2019. "gDefrag: A graph-based tool to help defragmenting landscapes divided by linear infrastructures," Ecological Modelling, Elsevier, vol. 392(C), pages 1-5.
    • Handle: RePEc:eee:ecomod:v:392:y:2019:i:c:p:1-5
    DOI: 10.1016/j.ecolmodel.2018.10.012
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S0304380018303351
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.ecolmodel.2018.10.012?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Silva, João Paulo & Santos, Mário & Queirós, Luís & Leitão, Domingos & Moreira, Francisco & Pinto, Márcia & Leqoc, Miguel & Cabral, João Alexandre, 2010. "Estimating the influence of overhead transmission power lines and landscape context on the density of little bustard Tetrax tetrax breeding populations," Ecological Modelling, Elsevier, vol. 221(16), pages 1954-1963.
    2. William F. Laurance & Andrew Balmford, 2013. "A global map for road building," Nature, Nature, vol. 495(7441), pages 308-309, March.
    3. Borda-de-Água, Luís & Grilo, Clara & Pereira, Henrique M., 2014. "Modeling the impact of road mortality on barn owl (Tyto alba) populations using age-structured models," Ecological Modelling, Elsevier, vol. 276(C), pages 29-37.
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Ziyi Liu & Xiaoyu Gan & Weining Dai & Ying Huang, 2022. "Construction of an Ecological Security Pattern and the Evaluation of Corridor Priority Based on ESV and the “Importance–Connectivity” Index: A Case Study of Sichuan Province, China," Sustainability, MDPI, vol. 14(7), pages 1-25, March.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Zaw Naing Tun & Paul Dargusch & DJ McMoran & Clive McAlpine & Genia Hill, 2021. "Patterns and Drivers of Deforestation and Forest Degradation in Myanmar," Sustainability, MDPI, vol. 13(14), pages 1-27, July.
    2. Santos, Mário & Bastos, Rita & Cabral, João Alexandre, 2013. "Converting conventional ecological datasets in dynamic and dynamic spatially explicit simulations: Current advances and future applications of the Stochastic Dynamic Methodology (StDM)," Ecological Modelling, Elsevier, vol. 258(C), pages 91-100.
    3. Ina-Kathrin Spey & Denis Kupsch & Kadiri Serge Bobo & Matthias Waltert & Stefan Schwarze, 2019. "The Effects of Road Access on Income Generation. Evidence from An Integrated Conservation and Development Project in Cameroon," Sustainability, MDPI, vol. 11(12), pages 1-14, June.
    4. Brendan Mackey & Cyril F. Kormos & Heather Keith & William R. Moomaw & Richard A. Houghton & Russell A. Mittermeier & David Hole & Sonia Hugh, 2020. "Understanding the importance of primary tropical forest protection as a mitigation strategy," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 25(5), pages 763-787, May.
    5. Brendan Mackey & Cyril F. Kormos & Heather Keith & William R. Moomaw & Richard A. Houghton & Russell A. Mittermeier & David Hole & Sonia Hugh, 0. "Understanding the importance of primary tropical forest protection as a mitigation strategy," Mitigation and Adaptation Strategies for Global Change, Springer, vol. 25(5), pages 763-787.
    6. Ceia-Hasse, Ana & Navarro, Laetitia M. & Borda-de-Água, Luís & Pereira, Henrique M., 2018. "Population persistence in landscapes fragmented by roads: Disentangling isolation, mortality, and the effect of dispersal," Ecological Modelling, Elsevier, vol. 375(C), pages 45-53.
    7. Hajiahmadi, Delnia & Amanollahi, Jamil, 2018. "Fuzzy risk assessment modelling of wild animal life in Bijar protected area," Ecological Modelling, Elsevier, vol. 387(C), pages 49-60.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:ecomod:v:392:y:2019:i:c:p:1-5. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/ecological-modelling .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.