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    Marine hotspots of activity inform protection of a threatened community of pelagic species in a large oceanic jurisdiction

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    Authors
    Requena, S
    Oppel, S
    Bond, AL cc
    Hall, J
    Cleeland, J
    Crawford, RJM
    Davies, D
    Dilley, BJ
    Glass, T
    Makhado, A
    Ratcliffe, N
    Reid, TA
    Ronconi, RA
    Schofield, A
    Steinfurth, A
    Wege, M
    Bester, M
    Ryan, PG
    Show allShow less
    Issue date
    2020-03-25
    Submitted date
    2020-05-26
    Subject Terms
    seabird
    pinniped
    satellite tracking
    time‐in‐area
    marine‐protected area
    marine conservation planning
    
    Metadata
    Show full item record
    Abstract
    Remote oceanic islands harbour unique biodiversity, especially of species that rely on the marine trophic resources around their breeding islands. Identifying marine areas used by such species is essential to manage and limit processes that threaten these species. The Tristan da Cunha territory in the South Atlantic Ocean hosts several endemic and globally threatened seabirds, and pinnipeds; how they use the waters surrounding the islands must be considered when planning commercial activities. To inform marine management in the Tristan da Cunha Exclusive Economic Zone (EEZ), we identified statistically significant areas of concentrated activity by collating animal tracking data from nine seabirds and one marine mammal. We first calculated the time that breeding adults of the tracked species spent in 10 × 10 km cells within the EEZ, for each of four seasons to account for temporal variability in space use. By applying a spatial aggregation statistic over these grids for each season, we detected areas that are used more than expected by chance. Most of the activity hotspots were either within 100 km of breeding colonies or were associated with seamounts, being spatially constant across several seasons. Our simple and effective approach highlights important areas for pelagic biodiversity that will benefit conservation planning and marine management strategies.
    Citation
    Requena, S., Oppel, S., Bond, A.L., Hall, J., Cleeland, J., Crawford, R.J.M., Davies, D., Dilley, B.J., Glass, T., Makhado, A., Ratcliffe, N., Reid, T.A., Ronconi, R.A., Schofield, A., Steinfurth, A., Wege, M., Bester, M. and Ryan, P.G. (2020), Marine hotspots of activity inform protection of a threatened community of pelagic species in a large oceanic jurisdiction. Anim Conserv. doi:10.1111/acv.12572
    Publisher
    Wiley
    Journal
    Animal Conservation
    URI
    http://hdl.handle.net/10141/622767
    DOI
    10.1111/acv.12572
    Type
    Journal Article
    Item Description
    This is the peer reviewed version of the following article: Requena, S., Oppel, S., Bond, A.L., Hall, J., Cleeland, J., Crawford, R.J.M., Davies, D., Dilley, B.J., Glass, T., Makhado, A., Ratcliffe, N., Reid, T.A., Ronconi, R.A., Schofield, A., Steinfurth, A., Wege, M., Bester, M. and Ryan, P.G. (2020), Marine hotspots of activity inform protection of a threatened community of pelagic species in a large oceanic jurisdiction. Anim Conserv. doi:10.1111/acv.12572, which has been published in final form at https://doi.org/10.1111/acv.12572. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving. The attached file is the final approved author manuscript version, you are advised to consult the publisher’s version if you wish to cite from it.
    ISSN
    1367-9430
    ae974a485f413a2113503eed53cd6c53
    10.1111/acv.12572
    Scopus Count
    Collections
    Life sciences

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