Soil, plant, and spider nitrogen stable isotope (δ15N) measurements from eight temperate New Zealand islands sampled in 2006/07 and 2022. The dataset tracks decadal changes in seabird-driven nutrient inputs across islands with differing histories of mammal invasion and eradication. It was published via the Australian Ocean Data Network and last updated in April 2026.
Use Cases
- Analyzing decadal trends in seabird-driven nutrient inputs based on δ15N measurements from soil, plants, and spiders.
- Comparing ecosystem function recovery between invaded, never-invaded, and invader-eradicated islands.
- Investigating the relationship between seabird recolonization and rapid changes in basal nutrient levels.
- Assessing the propagation of seabird-derived nutrients through island food webs using multi-species isotope data.
Strengths
- 16-year longitudinal study comparing two sampling periods (2006/07 and 2022).
- Multi-species sampling includes soil, three plant species (Coprosma repens, C. robust, Myrsine australis), and spiders (Porrhothelidae).
- Comparative analysis across eight islands with distinct invasion and restoration histories.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to the specific eight New Zealand islands studied.
Provenance
- Source
- Australian Ocean Data Network
- Collection Method
- Field sampling of soil, plants, and spiders for nitrogen stable isotope analysis.
- Time Range
- 2006/07 to 2022
- Freshness
- Last updated 2026-04-29 05:32:08.037079; freshness should be verified.
- Geography
- Eight temperate islands in New Zealand