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    Planning Marine Reserve Networks for Both Feature Representation and Demographic Persistence Using Connectivity Patterns

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    9
    Author
    Bode, M; Williamson, DH; Weeks, R; Jones, GP; Almany, GR; Harrison, HB; Hopf, JK; Pressey, RL
    Date
    2016-05-11
    Source Title
    PLoS One
    Publisher
    PUBLIC LIBRARY SCIENCE
    University of Melbourne Author/s
    Bode, Michael
    Affiliation
    School of BioSciences
    Metadata
    Show full item record
    Document Type
    Journal Article
    Citations
    Bode, M., Williamson, D. H., Weeks, R., Jones, G. P., Almany, G. R., Harrison, H. B., Hopf, J. K. & Pressey, R. L. (2016). Planning Marine Reserve Networks for Both Feature Representation and Demographic Persistence Using Connectivity Patterns. PLOS ONE, 11 (5), https://doi.org/10.1371/journal.pone.0154272.
    Access Status
    Open Access
    URI
    http://hdl.handle.net/11343/259301
    DOI
    10.1371/journal.pone.0154272
    ARC Grant code
    ARC/DE130100572
    Abstract
    Marine reserve networks must ensure the representation of important conservation features, and also guarantee the persistence of key populations. For many species, designing reserve networks is complicated by the absence or limited availability of spatial and life-history data. This is particularly true for data on larval dispersal, which has only recently become available. However, systematic conservation planning methods currently incorporate demographic processes through unsatisfactory surrogates. There are therefore two key challenges to designing marine reserve networks that achieve feature representation and demographic persistence constraints. First, constructing a method that efficiently incorporates persistence as well as complementary feature representation. Second, incorporating persistence using a mechanistic description of population viability, rather than a proxy such as size or distance. Here we construct a novel systematic conservation planning method that addresses both challenges, and parameterise it to design a hypothetical marine reserve network for fringing coral reefs in the Keppel Islands, Great Barrier Reef, Australia. For this application, we describe how demographic persistence goals can be constructed for an important reef fish species in the region, the bar-cheeked trout (Plectropomus maculatus). We compare reserve networks that are optimally designed for either feature representation or demographic persistence, with a reserve network that achieves both goals simultaneously. As well as being practically applicable, our analyses also provide general insights into marine reserve planning for both representation and demographic persistence. First, persistence constraints for dispersive organisms are likely to be much harder to achieve than representation targets, due to their greater complexity. Second, persistence and representation constraints pull the reserve network design process in divergent directions, making it difficult to efficiently achieve both constraints. Although our method can be readily applied to the data-rich Keppel Islands case study, we finally consider the factors that limit the method's utility in information-poor contexts common in marine conservation.

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