A 47 cm sediment core from beneath the Amery Ice Shelf, East Antarctica, documents the colonization history of seabed communities over the Holocene. The study, presented by the Australian Ocean Data Network, reveals a succession from barren conditions to a diverse modern fauna dominated by filter feeders and polychaetes. The data provides evidence linking community development to ice shelf retreat and advected food supply from Prydz Bay.
Use Cases
- Analyze the temporal succession of benthic organisms (e.g., mobile infauna, filter feeders) against sediment depth to model colonization timelines.
- Correlate the first appearance of planktonic taxa in the core with the retreat of the ice shelf to infer past environmental thresholds.
- Study the relationship between the abundance of planktonic organisms and the emergence of benthic filter feeders to understand food web dependencies on advected supply.
Strengths
- Analysis based on a 47 cm long sediment core providing a continuous paleoecological record.
- Documents a clear faunal succession from barren conditions to a diverse modern community over millennia.
Limitations
- Specific row counts, column names, and sample-level data are unavailable from the description.
- The dataset's format is listed as HTML, which may limit direct machine-readability for analysis.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Fossil analysis of a sediment core.
- Time Range
- Holocene, with specific events dated to approximately 9600 years before present.
- Freshness
- null
- Geography
- Beneath the Amery Ice Shelf, East Antarctica, with connections to the open shelf waters of Prydz Bay.