ArticleAnnals of botany2025
Snow, fire and drought: how alpine and treeline soil seed banks are affected by simulated climate change.
Article in Annals of botany, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.
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2 citing papers in PubMed, 8 citations in OpenAlex.
- The Effects ofPlants (Basel, Switzerland) · 2026Article
- Climate change may alter seed and seedling traits and shift germination and mortality patterns in alpine environments.Annals of botany · 2025Article
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2 authors at 1 institution in 1 country.
Funding
Abstract
BACKGROUND AND
aimsSeed persistence in soil depends on environmental factors that affect seed dormancy and germination, such as temperature and water availability. In high-elevation ecosystems, rapid changes in these environmental factors because of climate change can impact future plant recruitment. To date, our knowledge on how soil seed banks from high-elevation environments will respond to climate change and extreme climate-related events is limited. Here, using the seedling emergence method, we investigated the effects of reduced snow cover, fire and drought on the density and diversity of germinants from soil seed banks of two high-elevation plant communities: a tall alpine herbfield and a treeline ecotone.
methodsIn Autumn 2020, we collected soil samples and characterized the standing vegetation of both communities at Kosciuszko National Park, Australia. Subsequently, we carried out a factorial experiment and subjected the soil samples to a series of manipulative treatments using greenhouse studies. KEY
resultsThe treeline had a larger and more diverse soil seed bank than the herbfield. A reduction in snow had a negative effect on the number of germinants in the herbfield and increased the dissimilarity with the standing vegetation, whereas the treeline responses were mainly neutral. Fire did not significantly affect the number of germinants but decreased the evenness values in both communities. The drought treatment reduced the number and richness of germinants and increased the dissimilarity with the standing vegetation in both communities. Plant functional forms explained some of the detected effects, but seed functional traits did not.
conclusionsOur study suggests that simulated climate change will affect plant recruitment from soil seed banks in a variety of ways. Changes in snow cover and incidences of fire and drought might be key drivers of germination from the soil seed bank and therefore the future composition of alpine plant communities.
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