Pollution, Habitats & Ecosystem Health
OBIS helps track habitat degradation, pollution impacts, and ecosystem restoration progress. Its long-term, globally distributed occurrence records provide the historical baselines and monitoring infrastructure needed to detect ecological change, evaluate restoration outcomes, and support evidence-based environmental management.
Supports: KMGBF Target 7, SDG 14.1, UN Decade on Ecosystem Restoration
Preserving seagrasses in a changing climate — OBIS occurrence data contributes to global assessments of the distribution and vulnerability of this critical marine habitat.
Reconstructing historical baselines to measure long-term habitat and community change
Implemented
OBIS multi-decadal occurrence records have been used to reconstruct historical species assemblages and detect shifting baselines — the gradual erosion of ecological benchmarks caused by cumulative human pressures. These analyses reveal long-term trends in habitat quality and community composition that would be invisible in shorter monitoring windows.
Region: Global
Challenge/issue: Without long-term historical records, managers cannot distinguish natural variability from genuine degradation — leading to management targets anchored to already-impacted states rather than true ecological baselines.
Impact: Reconstruction of pre-impact species assemblages and long-term degradation trajectories, enabling more ambitious and ecologically grounded restoration and management targets.
OBIS inputs: Long-term occurrence time-series, historical collection records, OBIS API
Supplying biodiversity baselines for environmental impact assessments of coastal development
Implemented
OBIS occurrence data has been incorporated into environmental impact assessments for coastal and offshore development projects, providing the biodiversity baseline against which potential impacts are evaluated and mitigation measures are designed.
Region: Global
Challenge/issue: EIA processes often rely on short pre-project surveys that miss rare, seasonal, or mobile species — OBIS long-term records can fill these gaps and reveal biodiversity values that brief surveys would overlook.
Impact: More robust EIA baselines reducing the risk of undetected biodiversity impacts from coastal and offshore development.
OBIS inputs: OBIS API, long-term occurrence data, benthic and habitat records
Mapping the ecological footprint of coral bleaching events in real time
Ongoing
OBIS occurrence data on reef-building corals and associated species can be combined with sea surface temperature anomaly data to map the spatial extent and ecological consequences of bleaching events, supporting real-time response and long-term reef monitoring programmes.
Region: Tropical and subtropical reef systems globally
Challenge/issue: Bleaching events unfold faster than in-water survey capacity can track — managers lack the spatial tools to prioritise response efforts or assess cumulative losses across reef systems.
Impact: Spatially explicit mapping of bleaching exposure and reef biodiversity supporting triage decisions, emergency response, and long-term reef recovery monitoring.
OBIS inputs: OBIS coral taxon occurrence records, reef species distribution data, long-term time-series
Measuring seagrass habitat loss and evaluating the success of restoration interventions
Ongoing
By tracking seagrass species occurrence over time through OBIS, researchers and managers can quantify habitat loss trajectories, identify drivers of decline, and measure the success of restoration interventions — providing the evidence base for adaptive management and international restoration commitments.
Region: Coastal zones globally, with priority in temperate and tropical seagrass regions
Challenge/issue: Seagrass restoration investments often lack the monitoring infrastructure to demonstrate outcomes — without long-term occurrence data, neither loss trajectories nor recovery signals can be reliably detected.
Impact: Evidence-based seagrass loss and recovery assessments supporting adaptive management decisions and the verification of international restoration pledges.
OBIS inputs: OBIS seagrass taxon occurrence records, long-term time-series data, regional coastal datasets
