Academic Journal
Sub‐arctic mosses and lichens show idiosyncratic responses to combinations of winter heatwaves, freezing and nitrogen deposition
| العنوان: | Sub‐arctic mosses and lichens show idiosyncratic responses to combinations of winter heatwaves, freezing and nitrogen deposition |
|---|---|
| المؤلفون: | Bokhorst, S., Bjerke, J.W., Phoenix, G.K., Jaakola, L., Mæhre, H.K., Tømmervik, H. |
| بيانات النشر: | Wiley |
| سنة النشر: | 2023 |
| المجموعة: | White Rose Research Online (Universities of Leeds, Sheffield & York) |
| الوصف: | Arctic ecosystems are increasingly exposed to extreme climatic events throughout the year, which can affect species performance. Cryptogams (bryophytes and lichens) provide important ecosystem services in polar ecosystems but may be physiologically affected or killed by extreme events. Through field and laboratory manipulations, we compared physiological responses of seven dominant sub-Arctic cryptogams (3 bryophytes, 4 lichens) to single events and factorial combinations of mid-winter heatwave (6°C for 7 days), re-freezing, snow removal and summer nitrogen addition. We aimed to identify which mosses and lichens are vulnerable to these abiotic extremes and if combinations would exacerbate physiological responses. Combinations of extremes resulted in stronger species responses but included idiosyncratic species-specific responses. Species that remained dormant during winter (March), irrespective of extremes, showed little physiological response during summer (August). However, winter physiological activity, and response to winter extremes, were not consistently associated with summer physiological impacts. Winter extremes affect cryptogam physiology, but summer responses appear mild, and lichens affect the photobiont more than the mycobiont. Accounting for Arctic cryptogam response to multiple climatic extremes in ecosystem functioning and modelling will require a better understanding of their winter eco-physiology and repair capabilities. This article is protected by copyright. All rights reserved. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | text |
| اللغة: | English |
| Relation: | https://eprints.whiterose.ac.uk/197334/1/Physiologia%20Plantarum%20-%202023%20-%20Bokhorst%20-%20Sub%E2%80%90arctic%20mosses%20and%20lichens%20show%20idiosyncratic%20responses%20to%20combinations%20of.pdf; Bokhorst, S. orcid.org/0000-0003-0184-1162 , Bjerke, J.W., Phoenix, G.K. et al. (3 more authors) (2023) Sub‐arctic mosses and lichens show idiosyncratic responses to combinations of winter heatwaves, freezing and nitrogen deposition. Physiologia Plantarum, 175 (2). e13882. ISSN 0031-9317 |
| DOI: | 10.1111/ppl.13882 |
| الاتاحة: | https://eprints.whiterose.ac.uk/197334/ https://eprints.whiterose.ac.uk/197334/1/Physiologia%20Plantarum%20-%202023%20-%20Bokhorst%20-%20Sub%E2%80%90arctic%20mosses%20and%20lichens%20show%20idiosyncratic%20responses%20to%20combinations%20of.pdf https://doi.org/10.1111/ppl.13882 |
| Rights: | cc_by_nc_nd_4 |
| رقم الانضمام: | edsbas.9AA3E1A7 |
| قاعدة البيانات: | BASE |
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