Marine predators at South Georgia: an overview of recent bio-logging studies

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There is a unique diversity and density of land-based marine predators breeding at Bird Island, South Georgia, operating at a wide variety of spatial and temporal scales. These provide exceptional opportunities for bio-logging studies, the objectives of which have been to investigate trophic interactions in ecosystem contexts (including applications in fisheries and environmental management and conservation). Associated data from studies on feeding ecology, reproductive performance and population dynamics provide valuable contextual information for bio-logging analyses. An associated ship-based offshore marine science programme also provides vital information about the local and regional biological and physical environment, which is both complex and highly variable. Further developments of our bio-logging studies at South Georgia face a number of important challenges. These include:* acquiring samples large enough for statistical analysis;* replicating study sites and/or populations in order to characterize population and species behaviour;* collecting simultaneous data from multiple sensors or devices in order to interpret foraging behaviour;* acquiring key collateral data on prey and environment at appropriate spatial and temporal scales to understand foraging dynamics in context.We illustrate approaches to address some of these challenges from recent studies of the South Georgia marine ecosystem.

There is a unique diversity and density of land-based marine predators breeding at Bird Island, South Georgia, operating at a wide variety of spatial and temporal scales. These provide exceptional opportunities for bio-logging studies, the objectives of which have been to investigate trophic interactions in ecosystem contexts (including applications in fisheries and environmental management and conservation). Associated data from studies on feeding ecology, reproductive performance and population dynamics provide valuable contextual information for bio-logging analyses. An associated ship-based offshore marine science programme also provides vital information about the local and regional biological and physical environment, which is both complex and highly variable. Further developments of our bio-logging studies at South Georgia face a number of important challenges. These include:* acquiring samples large enough for statistical analysis;* replicating study sites and/or populations in order to characterize population and species behaviour;* collecting simultaneous data from multiple sensors or devices in order to interpret foraging behaviour;* acquiring key collateral data on prey and environment at appropriate spatial and temporal scales to understand foraging dynamics in context.We illustrate approaches to address some of these challenges from recent studies of the South Georgia marine ecosystem.

収録刊行物

  • Memoirs of National Institute of Polar Research. Special issue

    Memoirs of National Institute of Polar Research. Special issue 58, 118-132, 2004-03

    国立極地研究所

各種コード

  • NII論文ID(NAID)
    110000010603
  • NII書誌ID(NCID)
    AA00733561
  • 本文言語コード
    ENG
  • 資料種別
    Departmental Bulletin Paper
  • ISSN
    03860744
  • データ提供元
    NII-ELS  IR 
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