Hanley's River Snail Predicted Distribution in New South Wales

Records from 1994 onward were used to model the current indicative distribution of the critically endangered Hanley's River Snail in New South Wales. The NSW Department of Primary Industries created this dataset by collating species records and modeling probabilities of occurrence using MaxEnt software with 30 stream variables. The data integrates the Australian Hydrological Geospatial Fabric V2 network, National Environmental Stream Attributes Database, and River Styles® geomorphology classifications.

Use Cases

• Modeling habitat suitability for an endangered species based on stream environmental variables.
• Assessing the impact of historical river flow management on freshwater snail populations.
• Prioritizing conservation areas based on predicted species distribution maps.
• Integrating high-resolution river character classifications with species presence data for ecological studies.

Strengths

• Modeling integrates 30 stream variables from the National Environmental Stream Attributes Database.
• Data foundation uses the fully connected Australian Hydrological Geospatial Fabric V2 surface hydrology network.
• Species records were assessed for accuracy and filtered to post-1994 for current distribution modeling.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Freshness should be verified despite a last updated date of 2026-05-13.

Provenance

Source

Department of Primary Industries and Regional Development (DPIRD)

Collection Method

Species distribution modeling using MaxEnt 3.3.3 on collated presence records and environmental variables.

Time Range

Records from 1994 onward

Freshness

Last updated 2026-05-13 02:54:23.845592

Geography

New South Wales, Australia, specifically the Murray River catchment including the Lachlan and Murrumbidgee Rivers