Genetic Diversity and Conservation in Forest Ecosystems
Summary
Genetic diversity underpins the resilience, productivity and long-term adaptability of forest ecosystems. Variability within and among tree populations governs responses to environmental change, pest outbreaks and disease, and supports ecosystem services such as carbon sequestration and water regulation. Patterns of genetic variation reflect historical processes—post-glacial migration, refugia and hybrid zones—as well as contemporary pressures including habitat fragmentation, selective harvesting and climate change. Conservation strategies now integrate in situ approaches (dynamic genetic conservation units and adaptive silviculture) with ex situ measures (seed banks and provenance trials) to maintain evolutionary potential. Advances in molecular markers and genomic technologies enable fine-scale assessment of genetic structure, identification of adaptive alleles and monitoring of demographic trajectories. Coordinated genetic monitoring informs policy and forest management, guiding assisted migration, restoration of degraded stands and the design of protected networks that secure both neutral and adaptive diversity for future generations.
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Genetic Diversity and Conservation in Forest Ecosystems publication trend
The graph below shows the total number of articles in genetic diversity and conservation in forest ecosystems across all publications each year (not limited to Nature Index journals).
Technical terms
Genetic diversity: Variability of genetic characteristics within and among populations, crucial for adaptive capacity.
Effective population size (Ne): Number of breeding individuals contributing genes to the next generation, influencing genetic drift.
Introgressive hybridisation: Incorporation of genes from one species or population into another through repeated backcrossing.
Phylogeography: Study of the historical processes that shape geographic distributions of genetic lineages.
Genetic monitoring: Repeated assessment of genetic indicators over time to detect changes in diversity and structure.
References
- Postglacial phylogeography, admixture, and evolution of red spruce (Picea rubens Sarg.) in Eastern North America. Frontiers in Plant Science (2023).
- Forest Genetics Research in the Mediterranean Basin: Bibliometric Analysis, Knowledge Gaps, and Perspectives. Current Forestry Reports (2022).
- Genetic Diversity, Structure and Effective Population Size of Old-Growth vs. Second-Growth Populations of Keystone and Long-Lived Conifer, Eastern White Pine (Pinus strobus): Conservation Value and Climate Adaptation Potential. Frontiers in Genetics (2021).
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