Biodiversity Assessment and Conservation Planning

Biodiversity assessment and conservation planning encompass a suite of methods to quantify living diversity and to guide the design of protected areas, restoration actions and sustainable land-use strategies. Assessment techniques range from traditional field inventories and remote-sensing mapping to environmental DNA metabarcoding and phylogenetic analyses. Surrogate taxa—such as indicator, umbrella or keystone species—and higher-taxon surrogates can expedite surveys but require careful validation against multi-taxon benchmarks. Spatial scale is critical: α-diversity metrics capture local richness while β-diversity reveals turnover across landscapes, informing systematic conservation planning tools that balance biodiversity targets with socio-economic costs. Integrative frameworks now link abiotic drivers, biotic interactions and evolutionary history to refine estimates of ecosystem resilience. These developments enable evidence-based prioritisation of conservation corridors, restoration hotspots and climate-adaptation networks, ensuring that limited resources are directed to areas of greatest ecological and societal value.

Research from Nature Portfolio

Recent studies have revealed that reliance on single surrogate taxa can substantially misestimate total species richness in biodiverse forests. Analyses of 43 co-occurring taxa demonstrated highly nonlinear scaling of diversity across spatial grains, implying that conservation plans based on plants alone may under- or over-estimate true biodiversity in heterogeneous landscapes. Elsewhere, research into cross-taxon congruence among plants, moths and beetles showed that abiotic gradients, notably elevation and microclimatic variation, exert a stronger control on community turnover than biotic interactions. This insight highlights the need to group taxa by turnover similarity and to integrate environmental predictors into priority-setting algorithms.

Biodiversity Assessment and Conservation Planning publication trend

The graph below shows the total number of articles in biodiversity assessment and conservation planning across all publications each year (not limited to Nature Index journals).

Technical terms

Alpha diversity: The number and evenness of species within a specific site or habitat.

Beta diversity: The degree of change in species composition between different sites, indicating turnover.

Surrogate taxon: A species or higher taxonomic group used to represent wider biodiversity patterns.

Metabarcoding: A molecular method that uses DNA markers to identify multiple taxa from environmental samples.

Systematic conservation planning: A structured process for identifying and prioritising areas for protection to meet explicit biodiversity targets.

References

1. Cross-taxa assessment of species diversity and phylogenetic structure of benthic communities in a dam-impacted river undergoing habitat restoration. The Science of The Total Environment (2024).
2. The usefulness of surrogates in biodiversity conservation: A synthesis. Biological Conservation (2023).
3. Vascular plant species richness and bioindication predict multi‐taxon species richness. Methods in Ecology and Evolution (2018).
4. Multitrophic diversity in a biodiverse forest is highly nonlinear across spatial scales. Nature Communications (2015).
5. Disentangling effects of abiotic factors and biotic interactions on cross-taxon congruence in species turnover patterns of plants, moths and beetles. Scientific Reports (2016).