Forest Succession and Biodiversity Dynamics

Forest succession describes the orderly and directional changes in species composition and ecosystem structure that follow disturbance or the creation of new substrate. From early colonisation by fast-growing pioneer species to the development of mixed-species stands and, ultimately, a stable climax community, successional pathways are shaped by interactions among disturbance regimes, site conditions, species traits and biotic filters. Throughout these stages, biodiversity dynamics unfold as species colonise, compete, facilitate or inhibit one another, influencing nutrient cycling, canopy architecture and wildlife habitat. Understanding these processes is essential for predicting responses to climate change, guiding restoration efforts, optimising carbon sequestration and maintaining ecosystem services on a global scale.

Research from Nature Portfolio

Recent studies have identified how understory shrubs and accumulated litter act as a filter for oak regeneration in temperate pine forests. Analyses of seedling survival beneath pine versus oak canopies revealed that snow accumulation on oak litter inhibits seedling emergence, whereas pine litter allows higher winter survival. Experimental use of protective covers around seedlings confirmed that physical barriers posed by forest floor material govern transition from pine to oak dominance. These insights refine our understanding of microsite controls on successional trajectories and offer practical guidance for managing regeneration in mixed-species landscapes.

Forest Succession and Biodiversity Dynamics publication trend

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

Technical terms

Succession: The process of sequential change in species composition and ecosystem structure over time following disturbance or de novo habitat formation.

Seral stage: A distinct intermediate community in the progression from pioneer vegetation to a climax assemblage.

Climax community: A relatively stable and self-perpetuating stage of succession characterised by long-lived species and balanced nutrient cycling.

Functional trait: A morphological or physiological characteristic of an organism that influences its performance and interactions in an ecosystem.

Understory filter: Biotic and abiotic layers in the forest understorey, including litter and shrubs, that regulate seedling establishment and species turnover.

References

1. Review on the succession process of Pinus densiflora forests in South Korea: progressive and disturbance-driven succession. Journal of Ecology and Environment (2020).
2. Red Alder-Conifer Stands in Alaska: An Example of Mixed Species Management to Enhance Structural and Biological Complexity. Forests (2017).
3. Forest composition and structure after 200 years of succession following the eruption of Mount Tambora (Indonesia). Ecoscience (2021).
4. Forest litter and shrubs act as an understory filter for the survival of Quercus mongolica seedlings in Mt. Kwan-ak, South Korea. Scientific Reports (2019).