Spatial and temporal patterns of stream nutrient limitation in an Arctic catchment
Arctic stream biofilm responses to ongoing climate-related changes in physical and chemical conditions have major implications for stream food webs and biogeochemical cycles. Yet, such effects have rarely been studied outside summer months or at sub-catchment scales in the Arctic. We used deployment...
Published in: | Hydrobiologia |
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Umeå universitet, Institutionen för ekologi, miljö och geovetenskap
2023
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Online Access: | http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-205794 https://doi.org/10.1007/s10750-023-05178-7 |
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ftumeauniv:oai:DiVA.org:umu-205794 2023-10-09T21:47:59+02:00 Spatial and temporal patterns of stream nutrient limitation in an Arctic catchment Hauptmann, Demian Myrstener, Maria 2023 application/pdf http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-205794 https://doi.org/10.1007/s10750-023-05178-7 eng eng Umeå universitet, Institutionen för ekologi, miljö och geovetenskap Climate Impact Research Centre, Umeå University, Umeå, Sweden Climate Impact Research Centre, Umeå University, Umeå, Sweden; Department of Forest Ecology and Management, Swedish University of Agricultural Sciences, Umeå, Sweden Hydrobiologia, 0018-8158, 2023, 850:7, s. 1699-1713 orcid:0000-0003-0943-641x http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-205794 doi:10.1007/s10750-023-05178-7 ISI:000948786600001 Scopus 2-s2.0-85149752013 info:eu-repo/semantics/openAccess Arctic ecosystems Biofilm Climate change Nutrient limitation Resource limitation Seasonality Ecology Ekologi Article in journal info:eu-repo/semantics/article text 2023 ftumeauniv https://doi.org/10.1007/s10750-023-05178-7 2023-09-22T14:01:18Z Arctic stream biofilm responses to ongoing climate-related changes in physical and chemical conditions have major implications for stream food webs and biogeochemical cycles. Yet, such effects have rarely been studied outside summer months or at sub-catchment scales in the Arctic. We used deployments of nutrient diffusing substrates (NDS) to assess the spatial (20 deployments) and seasonal patterns (10 deployments) and physical and chemical drivers of nutrient limitation within an Arctic stream catchment. Results show that nutrient limitation of autotrophic processes was common during summer, but that light inhibited biomass accrual under the ice in winter. Alongside single N, P and C responses, co-limitation dominated the overall pattern of limitation over time and across the catchment. However, the primary limiting nutrient to autotrophs changed from N to P in parts of the catchment with higher N concentrations. As Arctic studies are often conducted at individual sites during summer, these may miss shifts in the drivers of stream productivity that arise from variable nutrient, temperature, and light regimes. Our results caution against focusing on one single most important limiting nutrient, as we found that this can shift seasonally and over small spatial scales in this Arctic catchment. Article in Journal/Newspaper Arctic Climate change Umeå University: Publications (DiVA) Arctic Hydrobiologia 850 7 1699 1713 |
institution |
Open Polar |
collection |
Umeå University: Publications (DiVA) |
op_collection_id |
ftumeauniv |
language |
English |
topic |
Arctic ecosystems Biofilm Climate change Nutrient limitation Resource limitation Seasonality Ecology Ekologi |
spellingShingle |
Arctic ecosystems Biofilm Climate change Nutrient limitation Resource limitation Seasonality Ecology Ekologi Hauptmann, Demian Myrstener, Maria Spatial and temporal patterns of stream nutrient limitation in an Arctic catchment |
topic_facet |
Arctic ecosystems Biofilm Climate change Nutrient limitation Resource limitation Seasonality Ecology Ekologi |
description |
Arctic stream biofilm responses to ongoing climate-related changes in physical and chemical conditions have major implications for stream food webs and biogeochemical cycles. Yet, such effects have rarely been studied outside summer months or at sub-catchment scales in the Arctic. We used deployments of nutrient diffusing substrates (NDS) to assess the spatial (20 deployments) and seasonal patterns (10 deployments) and physical and chemical drivers of nutrient limitation within an Arctic stream catchment. Results show that nutrient limitation of autotrophic processes was common during summer, but that light inhibited biomass accrual under the ice in winter. Alongside single N, P and C responses, co-limitation dominated the overall pattern of limitation over time and across the catchment. However, the primary limiting nutrient to autotrophs changed from N to P in parts of the catchment with higher N concentrations. As Arctic studies are often conducted at individual sites during summer, these may miss shifts in the drivers of stream productivity that arise from variable nutrient, temperature, and light regimes. Our results caution against focusing on one single most important limiting nutrient, as we found that this can shift seasonally and over small spatial scales in this Arctic catchment. |
format |
Article in Journal/Newspaper |
author |
Hauptmann, Demian Myrstener, Maria |
author_facet |
Hauptmann, Demian Myrstener, Maria |
author_sort |
Hauptmann, Demian |
title |
Spatial and temporal patterns of stream nutrient limitation in an Arctic catchment |
title_short |
Spatial and temporal patterns of stream nutrient limitation in an Arctic catchment |
title_full |
Spatial and temporal patterns of stream nutrient limitation in an Arctic catchment |
title_fullStr |
Spatial and temporal patterns of stream nutrient limitation in an Arctic catchment |
title_full_unstemmed |
Spatial and temporal patterns of stream nutrient limitation in an Arctic catchment |
title_sort |
spatial and temporal patterns of stream nutrient limitation in an arctic catchment |
publisher |
Umeå universitet, Institutionen för ekologi, miljö och geovetenskap |
publishDate |
2023 |
url |
http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-205794 https://doi.org/10.1007/s10750-023-05178-7 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Climate change |
genre_facet |
Arctic Climate change |
op_relation |
Hydrobiologia, 0018-8158, 2023, 850:7, s. 1699-1713 orcid:0000-0003-0943-641x http://urn.kb.se/resolve?urn=urn:nbn:se:umu:diva-205794 doi:10.1007/s10750-023-05178-7 ISI:000948786600001 Scopus 2-s2.0-85149752013 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1007/s10750-023-05178-7 |
container_title |
Hydrobiologia |
container_volume |
850 |
container_issue |
7 |
container_start_page |
1699 |
op_container_end_page |
1713 |
_version_ |
1779310996256456704 |