Claims of Potential Expansion throughout the U.S. by Invasive Python Species Are Contradicted by Ecological Niche Models
2008

Invasive Python Expansion

Sample size: 90 publication Evidence: high

Author Information

Author(s): Pyron R. Alexander, Burbrink Frank T., Guiher Timothy J.

Primary Institution: The City University of New York

Hypothesis

The ecological limitations of the Burmese python and the effects of global warming on its potential expansion in the U.S. are unclear.

Conclusion

The Burmese python is unlikely to expand its range in the U.S. due to ecological constraints and global warming is expected to reduce its suitable habitat.

Supporting Evidence

  • The ecological niche models predict that suitable habitat for Burmese pythons is limited to southern Florida and extreme southern Texas.
  • Future climate models indicate a contraction in suitable habitat for Burmese pythons in the U.S.
  • The study found that the only established populations of Burmese pythons in the U.S. are in the Everglades.

Takeaway

Scientists studied where Burmese pythons can live in the U.S. and found that they can only live in a small area in Florida and Texas, and that climate change will make it even harder for them to spread.

Methodology

The study used ecological niche modeling with presence locality data and climatic variables to predict the distribution of Burmese pythons.

Potential Biases

The predictions may be influenced by the choice of climatic variables and the data sources used.

Limitations

The models may not account for all ecological factors affecting the pythons' distribution.

Digital Object Identifier (DOI)

10.1371/journal.pone.0002931

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