Stellaria Media Distribution and Plant Measurements on Macquarie Island

Distribution data for Stellaria media (common chickweed) on Macquarie Island includes plant locations, size measurements, and environmental factors from 8 major population sites. The dataset contains 8 files with waypoints, density maps, detailed plant metrics, and site summaries collected over 3 seasons. It was published by the Australian Antarctic Data Centre (AU_AADC) and last updated in March 2016.

Use Cases

• Modeling the spatial distribution of Stellaria media using plant location waypoints and density maps.
• Analyzing relationships between plant characteristics (width, depth, height, age, phenology) and environmental factors from site summary tables.
• Tracking directional changes in vegetation community structure using survey data from 6 infested sites over 3 seasons.
• Studying the dominance of Stellaria media relative to other vegetation using recorded plant dominance metrics.

Strengths

• Includes detailed plant measurements such as width, depth, height, age, and phenology from subsampled sites.
• Covers 8 major population sites and 6 infested sites surveyed over 3 seasons for temporal analysis.
• Combines geospatial waypoint data with tabular environmental and vegetation summaries.

Limitations

• Unknown total row count and sample size for statistical reliability.
• Data is from 2016 and may not reflect current ecological conditions on the island.
• Specific file formats and data schemas are not described, complicating initial use.

Provenance

Source

Australian Antarctic Data Centre (AU_AADC), sourced from NASA's Earthdata platform.

Collection Method

Field surveys including detailed vegetation measurements and mapping at specified sites.

Time Range

Surveys conducted over 3 seasons; specific years not provided.

Freshness

Last updated in March 2016; no stated update frequency.

Geography

Macquarie Island, a subantarctic island.