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Invasive earthworms...
Invasive earthworms unlock arctic plant nitrogen limitation
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- Blume-Werry, Gesche, 1985- (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Experimental Plant Ecology, Institute of Botany and Landscape Ecology, University of Greifswald, Soldmannstraße, Greifswald, Germany,Arcum
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- Krab, Eveline J (författare)
- Umeå universitet,Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för mark och miljö,Department of Soil and Environment,Umeå University,Institutionen för ekologi, miljö och geovetenskap,Swedish University of Agricultural Sciences, Department of Soil and Environment, Uppsala, Sweden
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- Olofsson, Johan (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap,Arcum
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- Sundqvist, Maja, 1980 (författare)
- Umeå universitet,Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences,Institutionen för ekologi, miljö och geovetenskap,Department of Earth Sciences, University of Gothenburg, Gothenburg, Sweden,Arcum
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Vaisanen, M. (författare)
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- Klaminder, Jonatan, 1976- (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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(creator_code:org_t)
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- 2020-04-14
- 2020
- Engelska.
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Ingår i: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 11:1
- Relaterad länk:
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https://www.nature.c...
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://gup.ub.gu.se...
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https://doi.org/10.1...
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https://res.slu.se/i...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Arctic plant growth is predominantly nitrogen (N) limited. This limitation is generally attributed to slow soil microbial processes due to low temperatures. Here, we show that arctic plant-soil N cycling is also substantially constrained by the lack of larger detritivores (earthworms) able to mineralize and physically translocate litter and soil organic matter. These new functions provided by earthworms increased shrub and grass N concentration in our common garden experiment. Earthworm activity also increased either the height or number of floral shoots, while enhancing fine root production and vegetation greenness in heath and meadow communities to a level that exceeded the inherent differences between these two common arctic plant communities. Moreover, these worming effects on plant N and greening exceeded reported effects of warming, herbivory and nutrient addition, suggesting that human spreading of earthworms may lead to substantial changes in the structure and function of arctic ecosystems. Arctic plant growth is predominantly nitrogen limited, where the slow nitrogen turnover in the soil is commonly attributed to the cold arctic climate. Here the authors show that the arctic plant-soil nitrogen cycling is also constrained by the lack of larger detritivores like earthworms.
Ämnesord
- NATURVETENSKAP -- Geovetenskap och miljövetenskap (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences (hsv//eng)
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- tundra
- soil
- vegetation
- decomposition
- lumbricidae
- communities
- feedbacks
- responses
- patterns
- growth
- Science & Technology - Other Topics
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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