G05 · NETWORK · fieldGCRI dossier · service level R0
GCRIBiodiversity NexusEstablished
Field overview

Field overview

Biodiversity science studies the variety of life at the level of genes, species and ecosystems, and the processes that variety sustains. As a risk field it asks a sharper question: how much loss can a system absorb before the services people rely on fail, and who bears the consequences? This overview sets out why the field matters, what experts study and how it connects to the other fields of Biodiversity Nexus.

Publisher
The Global Centre for Risk and Innovation
Field
Biodiversity and nature, Climate and hazards, Oceans and coasts
Status
Established
Service level
R0: information and enquiries
Mountain ranges, deserts, wetlands, glaciers and reefs, and how remote each division is from large cities.Indicator derived from Natural Earth at map scale; a screening view, not an assessment.
GCRI · Biodiversity Nexus · fieldDESIGN FIGURE
STEM methods
8
Canonical methods this field applies
Topics
8
Subject pages in the field
Counterparts
7
Platforms in shared fields at GCRI, GRF and GRA
Report series
2
Nexus Reports series it contributes to
01In brief

The short answer.

The Biodiversity Nexus field covers ecosystem integrity, biodiversity loss and nature-related risks to human and economic systems. Experts in it study questions such as ecosystem integrity and species and genetic diversity, with methods such as ecology and biodiversity science as well as Earth observation and remote sensing. Its counterparts at GRF and GRA look at the same systems through governance and finance.

02Canvas

One field, three institutions.

Canvas · one field, three institutionsDesign, not a record
One field, three institutions: Biodiversity Nexus and its counterpartsGCRI studies the field as science, GRF governs and convenes it, GRA builds shared financial understanding; the Nexus Universe tests work across them and the competent authorities decide. Design of the arrangement, not a record.

Fig.How GCRI, GRF and GRA share one field while the authorities decide. Design, not a record.

03Console

Field overview, in outline.

The working screen behind this subject: its structure, terms and states. Names are placeholders and values illustrative.

Field overview: the screen's structure, terms and states for Biodiversity.Placeholder names and illustrative values; a design, not a record or a live system.
04Why it matters

Nature is a dependency, not an amenity.

Agriculture depends on soil organisms, pollinators and pest predators. Cities depend on upstream forests and wetlands for clean, regulated water. Coastal settlements depend on reefs, dunes, salt marshes and mangroves to break waves and hold sediment. Fisheries depend on breeding grounds that are often far from where fish are caught. Many medicines, materials and cultural practices depend on particular species and places.

These dependencies are distributed unevenly. Rural households, Indigenous peoples and coastal communities often depend most directly on local ecosystems and have the fewest substitutes when they degrade. The same loss can therefore be a marginal cost in one place and a threat to livelihoods in another, which is why the field treats distribution as part of the science rather than an afterthought.

05What experts study

From condition to consequence.

  1. 01

    State and trend

    The extent and condition of ecosystems and the abundance and diversity of species, measured through field surveys, monitoring networks and remote sensing. See Ecosystem integrity and Species and genetic diversity.

  2. 02

    Drivers

    Land and sea use change, exploitation, climate change, pollution and invasive species, and how they interact in particular places.

  3. 03

    Thresholds and resilience

    The points at which systems shift state, and the properties, such as connectivity and functional redundancy, that help them recover. See Forests and landscapes and Wetlands and freshwater.

  4. 04

    Services and dependencies

    Which functions people and economies rely on, and how losses travel. See Ecosystem services and Coastal and marine biodiversity.

  5. 05

    Response

    Whether conservation and restoration work, measured against what would have happened without them. See Restoration and nature-based solutions.

06Key terms

Terms used on this page.

Each term as this page uses it. Where a standard-setting body defines the term, the wording follows that body.

TermDefinition
Nature-related riskRisk to an organisation or economy arising from its dependencies and impacts on nature, as the TNFD recommendations frame it.
Kunming-Montreal Global Biodiversity FrameworkThe framework adopted under the CBD with goals for 2050 and targets for 2030 to halt and reverse biodiversity loss.
Direct drivers of biodiversity lossLand and sea use change, direct exploitation of organisms, climate change, pollution and invasive alien species, the five drivers IPBES identifies.
Systemic riskRisk arising from the interactions and dependencies within and between systems, where a shock can propagate and threaten the functioning of the whole.
07Connections

How this field touches others.

Biodiversity loss is both a consequence of other risks and a cause of them. Climate change shifts species ranges and stresses ecosystems, while degraded ecosystems store less carbon and buffer fewer hazards. Water security, food systems and coastal safety all run through ecological processes. Dependencies and consequences maps these links in detail.

08Pages

Pages in Field overview.

09Questions

Questions and answers.

Which methods does the field rely on?
Ecology and biodiversity science, Earth observation, spatial statistics, geospatial information systems, complex systems modelling, causal inference, hydrology and ocean science. Each is described on the STEM foundation page.
Is biodiversity loss the same as species extinction?
No. Extinction is the most visible and irreversible form, but most of the risk to human systems comes earlier, from declining populations, simplified communities and degraded habitat that lose function long before species disappear.
Why include Indigenous and community stewards?
Much of the world's remaining biodiversity is on lands and waters stewarded by Indigenous peoples and local communities, whose knowledge of change is often longer and finer-grained than formal monitoring. Their participation is on their terms, under nature data rights.
Biodiversity Nexus

Bring your expertise to this field.

The current service level is R0: information and enquiries. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.

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