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Research article2015Peer reviewedOpen access

A boreal invasion in response to climate change? Range shifts and community effects in the borderland between forest and tundra

Elmhagen, Bodil; Kindberg, Jonas; Hellström, Peter; Angerbjörn, Anders

Abstract

It has been hypothesized that climate warming will allow southern species to advance north and invade northern ecosystems. We review the changes in the Swedish mammal and bird community in boreal forest and alpine tundra since the nineteenth century, as well as suggested drivers of change. Observed changes include (1) range expansion and increased abundance in southern birds, ungulates, and carnivores; (2) range contraction and decline in northern birds and carnivores; and (3) abundance decline or periodically disrupted dynamics in cyclic populations of small and medium-sized mammals and birds. The first warm spell, 1930-1960, stands out as a period of substantial faunal change. However, in addition to climate warming, suggested drivers of change include land use and other anthropogenic factors. We hypothesize all these drivers interacted, primarily favoring southern generalists. Future research should aim to distinguish between effects of climate and land-use change in boreal and tundra ecosystems.

Keywords

Climate change; Land-use change; Range shifts; Population cycles; Mammalia; Aves

Published in

AMBIO: A Journal of the Human Environment
2015, Volume: 44, number: Suppl 1, pages: 39-50
Publisher: SPRINGER

    Sustainable Development Goals

    SDG13 Take urgent action to combat climate change and its impacts

    UKÄ Subject classification

    Climate Research
    Ecology

    Publication identifier

    DOI: https://doi.org/10.1007/s13280-014-0606-8

    Permanent link to this page (URI)

    https://res.slu.se/id/publ/76170