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Translocation of an arctic seashore plant reveals signs of maladaptation to altered climatic conditions

Hallfors, Maria and Lehvävirta, Susanna and Aandahl, Tone and Lehtimaki, Iida-Maria and Nilsson, Lars Ola and Ruotsalainen, Anna and Schulman, Leif E. and Hyvarinen, Marko T. (2020). Translocation of an arctic seashore plant reveals signs of maladaptation to altered climatic conditions. PeerJ. 8 , e10357
[Research article]

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Abstract

Ongoing anthropogenic climate change alters the local climatic conditions to which species may be adapted. Information on species' climatic requirements and their intraspecific variation is necessary for predicting the effects of climate change on biodiversity. We used a climatic gradient to test whether populations of two allopatric varieties of an arctic seashore herb (Primula nutans ssp.finmarchica) show adaptation to their local climates and how a future warmer climate may affect them. Our experimental set-up combined a reciprocal translocation within the distribution range of the species with an experiment testing the performance of the sampled populations in warmer climatic conditions south of their range. We monitored survival, size, and flowering over four growing seasons as measures of performance and, thus, proxies of fitness. We found that both varieties performed better in experimental gardens towards the north. Interestingly, highest up in the north, the southern variety outperformed the northern one. Supported by weather data, this suggests that the climatic optima of both varieties have moved at least partly outside their current range. Further warming would make the current environments of both varieties even less suitable. We conclude that Primula nutans ssp. finmarchica is already suffering from adaptational lag due to climate change, and that further warming may increase this maladaptation, especially for the northern variety. The study also highlights that it is not sufficient to run only reciprocal translocation experiments. Climate change is already shifting the optimum conditions for many species and adaptation needs also to be tested outside the current range of the focal taxon in order to include both historic conditions and future conditions.

Authors/Creators:Hallfors, Maria and Lehvävirta, Susanna and Aandahl, Tone and Lehtimaki, Iida-Maria and Nilsson, Lars Ola and Ruotsalainen, Anna and Schulman, Leif E. and Hyvarinen, Marko T.
Title:Translocation of an arctic seashore plant reveals signs of maladaptation to altered climatic conditions
Series Name/Journal:PeerJ
Year of publishing :2020
Volume:8
Article number:e10357
Number of Pages:27
Publisher:PEERJ INC
ISSN:2167-8359
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:Botanic garden, Conservation, Global change, Local adaptation, Siberian primrose, Threatened species, Transplant experiment
URN:NBN:urn:nbn:se:slu:epsilon-p-109394
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-109394
Additional ID:
Type of IDID
DOI10.7717/peerj.10357
Web of Science (WoS)000591182100005
ID Code:19781
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Landscape Architecture, Planning and Management
Deposited By: SLUpub Connector
Deposited On:28 Dec 2020 12:03
Metadata Last Modified:15 Jan 2021 19:22

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