Climate Change Impacts on Species Distribution Dynamics

Climate warming, altered precipitation patterns and extreme events are reshaping the geographical ranges of terrestrial and marine species worldwide. As temperatures rise, many organisms shift polewards or to higher elevations in search of suitable climates, while some populations contract at their warm margins, leading to local extinctions. The magnitude and rate of these range shifts depend on species’ dispersal capacity, ecological traits and the interplay between climate suitability and land-use change. Correlative approaches, such as climatic envelope models, are widely used to project future range changes, yet they may over- or under-estimate responses if they ignore biotic interactions, microclimatic refugia and adaptive potential. Mechanistic and hybrid models seek to incorporate physiological limits and dispersal barriers, improving forecasts under novel conditions. Ensemble forecasting, combining multiple model outputs, can reduce uncertainty and guide conservation planning, for instance by identifying climate refugia or corridors for assisted migration. Globally, shifts in species distributions threaten ecosystem services, undermine protected-area design and increase the risk of invasive species establishment. Integrative, multi-predictor frameworks that unite climate data, land-use scenarios and species traits are essential to inform adaptive management, prioritise monitoring efforts and safeguard biodiversity in a rapidly changing world.

Research from Nature Portfolio

Recent studies have used long-term monitoring of European breeding birds to disentangle drivers of range dynamics over three decades. Results reveal that local colonisation and extinction events correlate more strongly with baseline climate conditions and intrinsic range traits than with recent changes in climate suitability. On average, species shifted by about 2.4 km per year, but these shifts deviated significantly from projections based solely on climate and land-cover change. The findings underscore the limitations of single-factor models and highlight the need for integrative, multi-predictor approaches that incorporate species’ ecology, habitat structure and non-climatic stressors to improve forecasts of future range shifts.

Climate Change Impacts on Species Distribution Dynamics publication trend

The graph below shows the total number of articles in climate change impacts on species distribution dynamics across all publications each year (not limited to Nature Index journals).

Technical terms

Species distribution model (SDM): A quantitative tool that relates observed species occurrences to environmental variables to predict current or future geographic ranges.

Climatic envelope model: A correlative SDM that defines the range of climate conditions within which a species typically occurs, used to forecast shifts under climate change.

Range shift: A change in the geographical position of the area occupied by a species, often measured as movement of range centroids or leading/trailing edges.

Space-for-time substitution: An approach that uses current spatial gradients of climate and biota as analogues for future temporal change, assuming spatial relationships mirror temporal responses.

References

1. Climate change-related distributional range shifts of venomous snakes: a predictive modelling study of effects on public health and biodiversity. The Lancet Planetary Health (2024).
2. Local colonisations and extinctions of European birds are poorly explained by changes in climate suitability. Nature Communications (2023).
3. Space‐for‐time substitutions in climate change ecology and evolution. Biological Reviews (2023).
4. Climate-Related Local Extinctions Are Already Widespread among Plant and Animal Species. PLOS Biology (2016).