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Big data analysis for evaluating bioinvasion risk.

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  • 1College of Information Science and Technology, Beijing Normal University, Beijing, 100875, China.

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Summary
This summary is machine-generated.

This study introduces a novel biosecurity mechanism to assess port bioinvasion risk, considering both invasion and spread potential. Key global hotspots for aquatic bioinvasion were identified, highlighting Western Europe and the Asia-Pacific regions.

Keywords:
BioinvasionS-core decompositionSpecies invasion network

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Area of Science:

  • Marine biology
  • Ecology
  • Risk assessment

Background:

  • Global maritime trade facilitates economic growth but poses significant bioinvasion risks.
  • Aquatic species translocate via ballast water and biofouling, establishing in non-native environments.
  • Existing bioinvasion management strategies overlook a port's capacity to spread invasive species.

Purpose of the Study:

  • To develop a biosecurity mechanism for estimating port bioinvasion risk.
  • To incorporate both the risk of a port being invaded and its potential as a stepping-stone for further spread.
  • To identify high-risk ports and regions globally.

Main Methods:

  • Utilized Automatic Identification System (AIS) data, ballast water data, and marine environmental data to compute invaded risk.
  • Constructed a Species Invasion Network (SIN) based on port invaded risk.
  • Evaluated each port's invasion risk spreading capability using s-core decomposition of the SIN.

Main Results:

  • Identified 100 global ports with the highest bioinvasion risk, equally weighting invaded risk and stepping-stone potential.
  • Highlighted Western Europe and the Asia-Pacific as intensive bioinvasion risk regions.
  • These regions show high rates of non-indigenous species growth and act as sources for global invasions.

Conclusions:

  • The proposed mechanism provides a comprehensive assessment of bioinvasion risk.
  • Identified key regions requiring enhanced biosecurity measures to mitigate invasive species spread.
  • Findings underscore the interconnectedness of global trade and aquatic ecosystem health.