{"id":435,"date":"2025-10-10T23:06:02","date_gmt":"2025-10-10T23:06:02","guid":{"rendered":"https:\/\/nordborn.lbhi.is\/?p=435"},"modified":"2025-10-10T23:06:03","modified_gmt":"2025-10-10T23:06:03","slug":"borealization-of-tundra-plant-communities-is-largely-driven-by-species-that-are-already-in-the-arctic","status":"publish","type":"post","link":"https:\/\/nordborn.lbhi.is\/?p=435","title":{"rendered":"Borealization of tundra plant communities is largely driven by species that are already in the Arctic"},"content":{"rendered":"\n

The composition of tundra plant communities is rapidly changing due to climate change. The potential encroachment of boreal species, from warmer, southern latitudes, is a conservation concern. Using the ITEX+ database, in a paper recently published in Ecology Letters<\/em> Mariana Garc\u00eda Criado and collaborators synthesized data from 32 study areas across the Arctic, including 287 vascular plant species and 1,137 plots, resurveyed between 1981 and 2023.<\/p>\n\n\n\n

\"\"
Conducting plant surveys in Kilpisj\u00e4rvi, Finnish Lapland (photo credit; Jiri Subrt)<\/figcaption><\/figure>\n\n\n\n

The aim of the study was to (i) quantify the borealization of tundra plant communities, (ii) assess the biogeographical, climatic and local drivers of borealization, and (iii) identify species contributing to borealization and their associated traits.<\/p>\n\n\n\n

They found that around half of the surveyed plots experienced borealization, understood as the increase in occurrence and abundance of boreal species or species present on the boreal-tundra boundary. Borealization was greater in Eurasia, closer to the treeline, at higher elevations, in warmer and wetter regions, where climate change was limited, and where initial boreal abundance was lower. Boreal colonizer species were generally short-statured, and more often shrubs and graminoids.<\/p>\n\n\n\n

The findings of this study indicate that tundra borealization is mainly driven by the spread of boreal-low Arctic tundra species, which are already present in tundra landscapes. These changes in plant community composition can have cascading impacts on land-atmosphere interactions, trophic dynamics and Indigenous and local livelihoods.<\/p>\n\n\n\n

Reference:<\/strong> Garc\u00eda Criado, M., Barrio, I.C., Speed, J.D.M., Bjorkman, A.D.,  Elmendorf, S.C., Myers-Smith, I.H., Aerts, R., Alatalo, J.M., Betway-May, K.R., Bj\u00f6rk, R.G., Bj\u00f6rkman, M.P.,  Blok, D., Cooper, E.J., Cornelissen, J.H.C., Gould, W.A., Gya, R., Henry, G.H.R., Hermanutz, L.,  Hollister, R.D., J\u00e4gerbrand, A.K., J\u00f3nsd\u00f3ttir, I.S., Kaarlej\u00e4rvi, E., Khitun, O., Lang, S.I.,  Macek, P.,  May, J.L., Michelsen, A., Normand, S., Olsen, S.L., Post, E., Rinnan, R.,  Schmidt, N.M., Sjogersten, S., Tolvanen, A., T\u00f6pper, J.P., Trant, A., Vandvik, V., Vowles, T. (2025) Borealisation of plant communities in the Arctic is driven by Boreal-Tundra species. Ecology Letters<\/em>. https:\/\/doi.org\/10.1111\/ele.70209<\/a><\/p>\n\n\n\n

\n\n\n\n

The top picture shows a woolly willow (Salix lanata<\/em>) growing in Latnjajaure, Sweden (credit Anne Bjorkman)<\/p>\n\n\n\n

<\/p>\n","protected":false},"excerpt":{"rendered":"

The composition of tundra plant communities is rapidly changing due to climate change. The potential encroachment of boreal species, from warmer, southern latitudes, is a conservation concern. Using the ITEX+ database, in a paper recently published in Ecology Letters Mariana Garc\u00eda Criado and collaborators synthesized data from 32 study areas across the Arctic, including 287 … <\/p>\n

Continue reading “Borealization of tundra plant communities is largely driven by species that are already in the Arctic”<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":440,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-435","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nordborn-publications"],"yoast_head":"\nBorealization of tundra plant communities is largely driven by species that are already in the Arctic - The Nordic Borealization Network<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/nordborn.lbhi.is\/?p=435\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Borealization of tundra plant communities is largely driven by species that are already in the Arctic - The Nordic Borealization Network\" \/>\n<meta property=\"og:description\" content=\"The composition of tundra plant communities is rapidly changing due to climate change. The potential encroachment of boreal species, from warmer, southern latitudes, is a conservation concern. 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