• Login
    View Item 
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    •   DSpace Home
    • Institute's contributions
    • Scholarly literature
    • View Item
    JavaScript is disabled for your browser. Some features of this site may not work without it.

    Advancing biodiversity assessment of marine protected areas by identifying ecologically critical sites and species

    Thumbnail
    Date
    2025
    Author
    Hurmine, R.
    Sukumaran, S.
    Manikandan, B.
    Thampan, A.K.
    Metadata
    Show full item record
    Abstract
    Marine Protected Areas (MPAs), despite their protected status, face growing threats from climate change and anthropogenic pressures, necessitating biodiversity assessment to evaluate their conservation effectiveness. This study employed macrobenthos to investigate beta (?) diversity, partitioned into Local Contributions to Beta Diversity (LCBD) and Species Contributions to Beta Diversity (SCBD), to identify ecologically critical sites and species within the moderately impacted Gulf of Kachchh (GoK) and the less impacted Gulf of Mannar (GoM) MPAs. This approach provided a more nuanced analysis than the classical Whittaker's ?-diversity index (?W). The GoM, characterized by stable environmental conditions, harboured more k-selected species than GoK, reflecting its high conservation value. Conversely, GoK showed higher LCBD and SCBD metrics than the GoM, reflecting ecological perturbations and the need for targeted restoration. ?-regression models revealed that LCBD was mainly driven by community metrics, particularly turnover with some influence from nestedness, in both MPAs. Environmental parameters such as suspended solids, sand, and total organic carbon in GoK, and sand and silt in GoM were strongly associated with LCBD. SCBD was primarily shaped by species occupancy and abundance, with occupancy emerging as the key driver in both MPAs. These findings highlight the value of expanding advanced ?-diversity metrics globally to strengthen marine conservation and ecosystem management.
    URI
    https://doi.org/10.1016/j.ocecoaman.2025.107981
    http://drs.nio.res.in/drs/handle/2264/9558
    Collections
    • Scholarly literature [9211]

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV
     

     

    Browse

    All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

    My Account

    LoginRegister

    DSpace software copyright © 2002-2016  DuraSpace
    Contact Us | Send Feedback
    Theme by 
    Atmire NV