Invasive Species Policy Data for 22 Eastern US States

Eastern US policy data supports an analysis of inconsistencies in invasive species regulations across 22 states. David Haak compiled this dataset for a study to be published in Ecological Applications. The raw data file is 523.0 KB and was last updated in April 2026.

Use Cases

• Compare state-level policy designations for specific invasive species using state and species name columns.
• Analyze the frequency and distribution of regulated species across the 22-state region.
• Identify policy gaps by cross-referencing species presence data with state regulatory lists.
• Assess temporal trends in policy adoption if a policy enactment date column is present.

Strengths

• Covers 22 US states, providing a multi-jurisdictional view.
• Data is associated with a peer-reviewed publication in Ecological Applications.
• Released under a permissive CC0-1.0 public domain license.

Limitations

• Dataset is small at 523.0 KB, indicating limited scope or detail.
• Specific row count, column names, and data structure are not provided.
• Geographic coverage is limited to the Eastern US, not nationwide.

Provenance

Source

David Haak, associated with a forthcoming publication in Ecological Applications.

Collection Method

Compiled for research analyzing differences in state invasive species policies.

Freshness

Last updated in April 2026.

Geography

22 states in the Eastern United States.