ArticleProceedings of the National Academy of Sciences of the United States of America2020
Divergence of Arctic shrub growth associated with sea ice decline.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 64 citations in OpenAlex.
- Terrestrial Arthropod Responses to Arctic Cryosphere Degradation.Global change biology · 2026Review
- Herbarium specimens reveal drivers of Arctic shrub growth.The New phytologist · 2026Article
- Facilitative Effects ofEcology and evolution · 2026Article
- On the Limits of Alpine Plants: A Systematic Review of the Factors Behind Species' Elevational Range Limits.Ecology and evolution · 2026Review
- Article
- Declining temperature and increasing moisture sensitivity of shrub growth in the Low-Arctic erect dwarf-shrub tundra of western Greenland.Ecology and evolution · 2022Article
- Warming-induced tipping points of Arctic and alpine shrub recruitment.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Vessels in aFrontiers in plant science · 2022Article
- New climate models reveal faster and larger increases in Arctic precipitation than previously projected.Nature communications · 2021Article
- Spring phenology drives range shifts in a migratory Arctic ungulate with key implications for the future.Global change biology · 2021Article
- Divergence of Arctic shrub growth associated with sea ice decline.Proceedings of the National Academy of Sciences of the United States of America · 2020Article
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Authors and funding
22 authors at 17 institutions in 9 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Arctic sea ice extent (SIE) is declining at an accelerating rate with a wide range of ecological consequences. However, determining sea ice effects on tundra vegetation remains a challenge. In this study, we examined the universality or lack thereof in tundra shrub growth responses to changes in SIE and summer climate across the Pan-Arctic, taking advantage of 23 tundra shrub-ring chronologies from 19 widely distributed sites (56°N to 83°N). We show a clear divergence in shrub growth responses to SIE that began in the mid-1990s, with 39% of the chronologies showing declines and 57% showing increases in radial growth (decreasers and increasers, respectively). Structural equation models revealed that declining SIE was associated with rising air temperature and precipitation for increasers and with increasingly dry conditions for decreasers. Decreasers tended to be from areas of the Arctic with lower summer precipitation and their growth decline was related to decreases in the standardized precipitation evapotranspiration index. Our findings suggest that moisture limitation, associated with declining SIE, might inhibit the positive effects of warming on shrub growth over a considerable part of the terrestrial Arctic, thereby complicating predictions of vegetation change and future tundra productivity.
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