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  1. Article ; Online: Improving the visual communication of environmental model projections.

    Bannister, Hayley J / Blackwell, Paul G / Hyder, Kieran / Webb, Thomas J

    Scientific reports

    2021  Volume 11, Issue 1, Page(s) 19157

    Abstract: Environmental and ecosystem models can help to guide management of changing natural systems by projecting alternative future states under a common set of scenarios. Combining contrasting models into multi-model ensembles (MMEs) can improve the skill and ... ...

    Abstract Environmental and ecosystem models can help to guide management of changing natural systems by projecting alternative future states under a common set of scenarios. Combining contrasting models into multi-model ensembles (MMEs) can improve the skill and reliability of projections, but associated uncertainty complicates communication of outputs, affecting both the effectiveness of management decisions and, sometimes, public trust in scientific evidence itself. Effective data visualisation can play a key role in accurately communicating such complex outcomes, but we lack an evidence base to enable us to design them to be visually appealing whilst also effectively communicating accurate information. To address this, we conducted a survey to identify the most effective methods for visually communicating the outputs of an ensemble of global climate models. We measured the accuracy, confidence, and ease with which the survey participants were able to interpret 10 visualisations depicting the same set of model outputs in different ways, as well as their preferences. Dot and box plots outperformed all other visualisations, heat maps and radar plots were comparatively ineffective, while our infographic scored highly for visual appeal but lacked information necessary for accurate interpretation. We provide a set of guidelines for visually communicating the outputs of MMEs across a wide range of research areas, aimed at maximising the impact of the visualisations, whilst minimizing the potential for misinterpretations, increasing the societal impact of the models and ensuring they are well-placed to support management in the future.
    Language English
    Publishing date 2021-09-27
    Publishing country England
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2615211-3
    ISSN 2045-2322 ; 2045-2322
    ISSN (online) 2045-2322
    ISSN 2045-2322
    DOI 10.1038/s41598-021-98290-4
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: LeMaRns: A Length-based Multi-species analysis by numerical simulation in R.

    Spence, Michael A / Bannister, Hayley J / Ball, Johnathan E / Dolder, Paul J / Griffiths, Christopher A / Thorpe, Robert B

    PloS one

    2020  Volume 15, Issue 2, Page(s) e0227767

    Abstract: Fish stocks interact through predation and competition for resources, yet stocks are typically managed independently on a stock-by-stock basis. The need to take account of multi-species interactions is widely acknowledged. However, examples of the ... ...

    Abstract Fish stocks interact through predation and competition for resources, yet stocks are typically managed independently on a stock-by-stock basis. The need to take account of multi-species interactions is widely acknowledged. However, examples of the application of multi-species models to support management decisions are limited as they are often seen as too complex and lacking transparency. Thus there is a need for simple and transparent methods to address stock interactions in a way that supports managers. Here we introduce LeMaRns, a new R-package of a general length-structured fish community model, LeMans, that characterises fishing using fleets that can have different gears and species catch preferences. We describe the model, package implementation, and give three examples of use: determination of multi-species reference points; modelling of mixed-fishery interactions; and examination of the response of community indicators to dynamical changes in fleet effort within a mixed-fishery. LeMaRns offers a diverse array of options for parameterisation. This, along with the speed, comprehensive documentation, and open source nature of the package makes LeMans newly accessible, transparent, and easy to use, which we hope will lead to increased uptake by the fisheries management community.
    MeSH term(s) Animals ; Conservation of Natural Resources ; Fisheries/statistics & numerical data ; Fishes/physiology ; Models, Statistical ; Predatory Behavior/physiology
    Language English
    Publishing date 2020-02-03
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0227767
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Book ; Online: Fish should not be in isolation

    Spence, Michael A. / Alliji, Khatija / Bannister, Hayley J. / Walker, Nicola D. / Muench, Angela

    Calculating maximum sustainable yield using an ensemble model

    2020  

    Abstract: Many jurisdictions have a legal requirement to manage fish stocks to maximum sustainable yield (MSY). Generally, MSY is calculated on a single-species basis, however in reality, the yield of one species depends, not only on its own fishing level, but ... ...

    Abstract Many jurisdictions have a legal requirement to manage fish stocks to maximum sustainable yield (MSY). Generally, MSY is calculated on a single-species basis, however in reality, the yield of one species depends, not only on its own fishing level, but that of other species. We show that bold assumptions about the effect of interacting species on MSY are made when managing on a single-species basis, often leading to inconsistent and conflicting advice, demonstrating the requirement of a multispecies MSY (MMSY). Although there are several definitions of MMSY, there is no consensus. Furthermore, calculating a MMSY can be difficult as there are many models, of varying complexity, each with their own strengths and weaknesses, and the value if MMSY can be sensitive to the model used. Here, we use an ensemble model to combine different multispecies models, exploiting their individual strengths and quantifying their uncertainties and discrepancies, to calculate a more robust MMSY. We demonstrate this by calculating a MMSY for nine species in the North Sea. We found that it would be impossible to fish at single-species MSY and that MMSY led to higher yields and revenues than current levels.

    Comment: 39 pages 11 figures
    Keywords Statistics - Applications
    Subject code 333 ; 590
    Publishing date 2020-05-05
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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