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المؤلفAlatalo, Juha M.
المؤلفJägerbrand, Annika K.
المؤلفDai, Junhu
المؤلفMollazehi, Mohammad D.
المؤلفAbdel-Salam, Abdel-Salam G.
المؤلفPandey, Rajiv
المؤلفMolau, Ulf
تاريخ الإتاحة2021-04-29T11:06:25Z
تاريخ النشر2021-03-31
اسم المنشورAmerican Journal of Botany
المعرّفhttp://dx.doi.org/10.1002/ajb2.1631
الاقتباسAlatalo, J. M., Jägerbrand, A. K., Dai, J., Mollazehi, M. D., Abdel‐Salam, A.‐S. G., Pandey, R., and Molau, U.. 2021. Effects of ambient climate and three warming treatments on fruit production in an alpine, subarctic meadow community. American Journal of Botany 108( 3): 411- 422.
الرقم المعياري الدولي للكتاب1537-2197
معرّف المصادر الموحدhttp://hdl.handle.net/10576/18399
الملخصPremise Climate change is having major impacts on alpine and arctic regions, and inter‐annual variations in temperature are likely to increase. How increased climate variability will impact plant reproduction is unclear. Methods In a 4‐year study on fruit production by an alpine plant community in northern Sweden, we applied three warming regimes: (1) a static level of warming with open‐top chambers (OTC), (2) press warming, a yearly stepwise increase in warming, and (3) pulse warming, a single‐year pulse event of higher warming. We analyzed the relationship between fruit production and monthly temperatures during the budding period, fruiting period, and whole fruit production period and the effect of winter and summer precipitation on fruit production. Results Year and treatment had a significant effect on total fruit production by evergreen shrubs, Cassiope tetragona, and Dryas octopetala, with large variations between treatments and years. Year, but not treatment, had a significant effect on deciduous shrubs and graminoids, both of which increased fruit production over the 4 years, while forbs were negatively affected by the press warming, but not by year. Fruit production was influenced by ambient temperature during the previous‐year budding period, current‐year fruiting period, and whole fruit production period. Minimum and average temperatures were more important than maximum temperature. In general, fruit production was negatively correlated with increased precipitation. Conclusions These results indicate that predicted increased climate variability and increased precipitation due to climate change may affect plant reproductive output and long‐term community dynamics in alpine meadow communities.
راعي المشروعQatar Petroleum
اللغةen
الناشرWiley
الموضوعclimatic events
experimental warming
global warming
plant reproduction
polar region
rain fall
plant reproductive success
tundra
العنوانEffects of ambient climate and three warming treatments on fruit production in an alpine, subarctic meadow community
النوعArticle
الصفحات411- 422
dc.accessType Open Access


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