Time since Introduction, Seed Mass, and Genome Size Predict Successful Invaders among the Cultivated Vascular Plants of Hawaii
2011

Predicting Invasive Plant Species in Hawaii

Sample size: 7866 publication Evidence: high

Author Information

Author(s): John Paul Schmidt, John M. Drake

Primary Institution: Odum School of Ecology, University of Georgia

Hypothesis

Can biological traits and time since introduction predict which cultivated plant species in Hawaii become invasive?

Conclusion

The study found that seed mass and chromosome number can effectively predict which introduced plant species in Hawaii are likely to become invasive.

Supporting Evidence

  • Of 7,866 ornamental species cultivated in Hawaii, 420 naturalized, 141 were classified as weeds, and 39 as noxious.
  • The study achieved nearly 90% accuracy in classifying invasive species based on biological traits.
  • Key predictors included seed mass and chromosome number standardized by genus.

Takeaway

This study helps us understand which plants might become pests by looking at their seed size and genetic traits.

Methodology

The study used boosted regression trees to analyze data on 7,866 cultivated plant species in Hawaii.

Potential Biases

Potential biases may arise from the non-random sample of species introduced to Hawaii.

Limitations

The study faced challenges due to incomplete data and the low proportion of naturalized or pest species.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.pone.0017391

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