UK Frog Phenology And Spawn Chemistry Records: 1994-2012

1994 to 2012 continuous records of frog population and water chemistry from UK Environmental Change Network terrestrial sites. Data includes phenology dates, spawn mass counts, and measurements for pH, conductivity, alkalinity, and nutrients like ammonium and nitrate nitrogen. The multi-agency programme is sponsored by fourteen government departments and agencies.

Use Cases

• Model frog phenology dates (congregating, spawning, hatching) against water chemistry variables like pH and conductivity to assess environmental drivers.
• Analyze trends in spawn mass count and total surface area covered by spawn across the 18-year monitoring period.
• Investigate correlations between percentage of dead spawn and nutrient levels such as ammonium, nitrate nitrogen, and phosphate phosphorous.
• Use continuous records from 1994-2012 to study long-term population changes in relation to alkalinity, aluminium, and calcium concentrations.

Strengths

• 18-year continuous temporal coverage from 1994 to 2012.
• Includes multiple phenology stages and detailed water chemistry with over 15 measured variables.
• Data collected using a standard protocol across the UK Environmental Change Network terrestrial sites.

Limitations

• Dataset has been withdrawn, indicating potential issues with availability or completeness.
• Sample size, row count, and specific geographic coverage per site are unknown.
• Data is temporally stale, ending in 2012 with no more recent updates.

Provenance

Source

Environmental Information Data Centre

Collection Method

Collected at ECN terrestrial sites using a standard protocol.

Time Range

1994 to 2012

Freshness

null

Geography

United Kingdom (terrestrial sites including Glensaugh, Hillsborough, Rothamsted, etc.)