Alaska State-Wide Butterfly Transect and Observation Data via Pollard Walks

Pollard walk transect and observation data for butterflies across the state of Alaska. The dataset includes polyline layers for surveyed areas and point layers for individual butterfly observations, collected via a QuickCapture application with quality control. Data is provided by the Department of the Interior and was last updated in March 2026.

Use Cases

• Modeling butterfly species distribution based on geospatial observation points.
• Analyzing the relationship between environmental conditions and pollinator presence based on survey metadata.
• Monitoring population trends for at-risk butterfly species based on repeated transect surveys.
• Studying habitat preferences based on observation comments about the sighting event.

Strengths

• Includes both survey transect lines and individual observation points, providing spatial context.
• Survey metadata includes crew, start/end dates and times, and environmental conditions, which suggests standardized collection.
• Data collection and quality control are supported by a dedicated QuickCapture application and web experience.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The description does not specify the exact temporal coverage of the survey data.

Provenance

Source

Department of the Interior

Collection Method

Collected via Pollard walks using a QuickCapture application, with quality control through a web experience.

Freshness

Last updated 2026-03-04 08:27:24.296152; freshness should be verified.

Geography

State of Alaska