Supplementary material from "Sea-ice induced growth decline in Arctic shrubs"
Measures of increased tundra plant productivity have been associated with the accelerating retreat of the Arctic sea-ice. Emerging studies document opposite effects, advocating for a more complex relationship between the shrinking sea-ice and terrestrial plant productivity. I introduce an autoregres...
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| Format: | Article in Journal/Newspaper |
| Language: | unknown |
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Figshare
2017
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| Online Access: | https://dx.doi.org/10.6084/m9.figshare.c.3843634.v1 https://figshare.com/collections/Supplementary_material_from_Sea-ice_induced_growth_decline_in_Arctic_shrubs_/3843634/1 |
| Summary: | Measures of increased tundra plant productivity have been associated with the accelerating retreat of the Arctic sea-ice. Emerging studies document opposite effects, advocating for a more complex relationship between the shrinking sea-ice and terrestrial plant productivity. I introduce an autoregressive plant growth model integrating effects of biological and climatic conditions for analysing individual ring-width growth time-series. Using 128 specimens of Salix arctica , S. glauca and Betula nana sampled across Greenland to Svalbard, an overall negative effect of the retreating June sea-ice extent was found on the annual growth. The negative effect of the retreating June sea-ice was observed for younger individuals with large annual growth allocations and with little or no trade-off between previous and current year's growth. |
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