Climate-related drivers of nutrient inputs and food web structure in shallow Arctic lake ecosystems
Abstract In order to predict the effects of climate change on polar ecosystems, disentangling mechanisms of nutrient transfer in food webs is crucial. We investigated sources of nutrients in tundra lakes, tracing their transfer through the food web and relating the observed patterns to runoff, snow...
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ftdoajarticles:oai:doaj.org/article:72b70bae28af460f8b22591922076215 2023-05-15T14:48:15+02:00 Climate-related drivers of nutrient inputs and food web structure in shallow Arctic lake ecosystems Edoardo Calizza Rosamaria Salvatori David Rossi Vittorio Pasquali Giulio Careddu Simona Sporta Caputi Deborah Maccapan Luca Santarelli Pietro Montemurro Loreto Rossi Maria Letizia Costantini 2022-02-01T00:00:00Z https://doi.org/10.1038/s41598-022-06136-4 https://doaj.org/article/72b70bae28af460f8b22591922076215 EN eng Nature Portfolio https://doi.org/10.1038/s41598-022-06136-4 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-06136-4 2045-2322 https://doaj.org/article/72b70bae28af460f8b22591922076215 Scientific Reports, Vol 12, Iss 1, Pp 1-16 (2022) Medicine R Science Q article 2022 ftdoajarticles https://doi.org/10.1038/s41598-022-06136-4 2022-12-31T04:09:19Z Abstract In order to predict the effects of climate change on polar ecosystems, disentangling mechanisms of nutrient transfer in food webs is crucial. We investigated sources of nutrients in tundra lakes, tracing their transfer through the food web and relating the observed patterns to runoff, snow coverage, and the presence of migratory geese in lake catchments. C and N content (elemental and isotopic) of several food web components including Lepidurus arcticus (Notostraca, at the top of the lake food webs) in 18 shallow Arctic lakes was compared. Terrestrial productivity and geese abundance were key biotic factors that interacted with abiotic variables (snow coverage, lake and catchment size) in determining the amount and origin of nutrient inputs, affecting the trophic interactions among aquatic species, food chain length and nutrient flow in Arctic lake food webs. Decreasing snow coverage, increasing abundance and expansion of the geese’s range are expected across the Arctic due to climate warming. By relating nutrient inputs and food web structure to snow coverage, vegetation and geese, this study contributes to our mechanistic understanding of the cascade effects of climate change in tundra ecosystems, and may help predict the response of lakes to changes in nutrient inputs at lower latitudes. Article in Journal/Newspaper Arctic Climate change Tundra Directory of Open Access Journals: DOAJ Articles Arctic Arctic Lake ENVELOPE(-130.826,-130.826,57.231,57.231) Scientific Reports 12 1 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Edoardo Calizza Rosamaria Salvatori David Rossi Vittorio Pasquali Giulio Careddu Simona Sporta Caputi Deborah Maccapan Luca Santarelli Pietro Montemurro Loreto Rossi Maria Letizia Costantini Climate-related drivers of nutrient inputs and food web structure in shallow Arctic lake ecosystems |
topic_facet |
Medicine R Science Q |
description |
Abstract In order to predict the effects of climate change on polar ecosystems, disentangling mechanisms of nutrient transfer in food webs is crucial. We investigated sources of nutrients in tundra lakes, tracing their transfer through the food web and relating the observed patterns to runoff, snow coverage, and the presence of migratory geese in lake catchments. C and N content (elemental and isotopic) of several food web components including Lepidurus arcticus (Notostraca, at the top of the lake food webs) in 18 shallow Arctic lakes was compared. Terrestrial productivity and geese abundance were key biotic factors that interacted with abiotic variables (snow coverage, lake and catchment size) in determining the amount and origin of nutrient inputs, affecting the trophic interactions among aquatic species, food chain length and nutrient flow in Arctic lake food webs. Decreasing snow coverage, increasing abundance and expansion of the geese’s range are expected across the Arctic due to climate warming. By relating nutrient inputs and food web structure to snow coverage, vegetation and geese, this study contributes to our mechanistic understanding of the cascade effects of climate change in tundra ecosystems, and may help predict the response of lakes to changes in nutrient inputs at lower latitudes. |
format |
Article in Journal/Newspaper |
author |
Edoardo Calizza Rosamaria Salvatori David Rossi Vittorio Pasquali Giulio Careddu Simona Sporta Caputi Deborah Maccapan Luca Santarelli Pietro Montemurro Loreto Rossi Maria Letizia Costantini |
author_facet |
Edoardo Calizza Rosamaria Salvatori David Rossi Vittorio Pasquali Giulio Careddu Simona Sporta Caputi Deborah Maccapan Luca Santarelli Pietro Montemurro Loreto Rossi Maria Letizia Costantini |
author_sort |
Edoardo Calizza |
title |
Climate-related drivers of nutrient inputs and food web structure in shallow Arctic lake ecosystems |
title_short |
Climate-related drivers of nutrient inputs and food web structure in shallow Arctic lake ecosystems |
title_full |
Climate-related drivers of nutrient inputs and food web structure in shallow Arctic lake ecosystems |
title_fullStr |
Climate-related drivers of nutrient inputs and food web structure in shallow Arctic lake ecosystems |
title_full_unstemmed |
Climate-related drivers of nutrient inputs and food web structure in shallow Arctic lake ecosystems |
title_sort |
climate-related drivers of nutrient inputs and food web structure in shallow arctic lake ecosystems |
publisher |
Nature Portfolio |
publishDate |
2022 |
url |
https://doi.org/10.1038/s41598-022-06136-4 https://doaj.org/article/72b70bae28af460f8b22591922076215 |
long_lat |
ENVELOPE(-130.826,-130.826,57.231,57.231) |
geographic |
Arctic Arctic Lake |
geographic_facet |
Arctic Arctic Lake |
genre |
Arctic Climate change Tundra |
genre_facet |
Arctic Climate change Tundra |
op_source |
Scientific Reports, Vol 12, Iss 1, Pp 1-16 (2022) |
op_relation |
https://doi.org/10.1038/s41598-022-06136-4 https://doaj.org/toc/2045-2322 doi:10.1038/s41598-022-06136-4 2045-2322 https://doaj.org/article/72b70bae28af460f8b22591922076215 |
op_doi |
https://doi.org/10.1038/s41598-022-06136-4 |
container_title |
Scientific Reports |
container_volume |
12 |
container_issue |
1 |
_version_ |
1766319339934318592 |