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Related Experiment Video

Updated: Aug 6, 2025

Modeling and Imaging 3-Dimensional Collective Cell Invasion
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Science paper or big data? Assessing invasion dynamics using observational data.

Charlotte H Clubley1, Louise B Firth1, Louisa E Wood2

  • 1School of Biological and Marine Sciences, University of Plymouth, Plymouth PL4 8AA, United Kingdom.

The Science of the Total Environment
|March 15, 2023
PubMed
Summary

Comparing online data to peer-reviewed literature for invasive species like the Pacific oyster (Magallana gigas) reveals similar spread estimates. This finding supports using diverse data sources for invasion research.

Keywords:
InvasionMagallana gigasNon-nativeOpen-source dataRange expansionSpatial spread

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Last Updated: Aug 6, 2025

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Area of Science:

  • Ecology
  • Invasive Species Biology
  • Conservation Science

Background:

  • Non-native species spread rapidly globally, driven by environmental change and trade.
  • Accurate assessment of species spread is vital for invasion management and prevention.
  • Online data repositories offer vast occurrence records but can be biased and imprecise.

Purpose of the Study:

  • To evaluate the impact of data source discrepancies (online vs. peer-reviewed literature) on non-native species spread assessments.
  • To compare invasion history data of the Pacific oyster (Magallana gigas) in Europe from online repositories versus published literature.
  • To determine if data source differences significantly affect estimates of spread rate and accumulated area.

Main Methods:

  • Collected 6693 records of Magallana gigas in Europe over 56 years.
  • Analyzed invasion history using both online occurrence data and peer-reviewed literature.
  • Calculated two spread metrics: maximum rate of spread and accumulated area.

Main Results:

  • Despite a lack of early invasion data in online repositories, both data sources yielded comparable estimates of Magallana gigas spread.
  • The study enhanced understanding of Magallana gigas distribution in Europe.
  • Both short- and long-range dispersal mechanisms were identified as drivers of range expansion.

Conclusions:

  • Online occurrence data and peer-reviewed literature provide similar estimates of invasive species spread, even with data gaps.
  • The developed framework allows for critical evaluation of different data sources for invasion dynamics.
  • Understanding invasion patterns is crucial for effective ecological management and conservation strategies.