Quantifying the vulnerability of Arctic water supply lakes through paleolimnological assessment: The case of Igloolik, Nunavut, Canada
Anthropogenic stressors to freshwater environments have perpetuated water quality and quantity challenges for communities across Arctic Canada, making drinking water resources a primary concern for northern peoples. To understand the ecological trajectory of lakes used as freshwater supply, we condu...
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Online Access: | http://dx.doi.org/10.1177/09596836211003234 http://journals.sagepub.com/doi/pdf/10.1177/09596836211003234 http://journals.sagepub.com/doi/full-xml/10.1177/09596836211003234 |
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crsagepubl:10.1177/09596836211003234 2023-05-15T14:52:39+02:00 Quantifying the vulnerability of Arctic water supply lakes through paleolimnological assessment: The case of Igloolik, Nunavut, Canada Cincio, Paige Medeiros, Andrew Scott Wesche, Sonia D Gajewski, Konrad Polar Knowledge Canada crown-indigenous relations and northern affairs canada Dalhousie University 2021 http://dx.doi.org/10.1177/09596836211003234 http://journals.sagepub.com/doi/pdf/10.1177/09596836211003234 http://journals.sagepub.com/doi/full-xml/10.1177/09596836211003234 en eng SAGE Publications https://creativecommons.org/licenses/by-nc/4.0/ CC-BY-NC The Holocene volume 31, issue 7, page 1175-1185 ISSN 0959-6836 1477-0911 Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change journal-article 2021 crsagepubl https://doi.org/10.1177/09596836211003234 2022-04-14T04:49:57Z Anthropogenic stressors to freshwater environments have perpetuated water quality and quantity challenges for communities across Arctic Canada, making drinking water resources a primary concern for northern peoples. To understand the ecological trajectory of lakes used as freshwater supply, we conducted a paleolimnological assessment on two supplemental sources in Igloolik, Nunavut, Arctic Canada. A stratigraphic examination of biological indicators (Insecta: Diptera: Chironomidae) allowed for paleotemperature reconstructions with decadal and centennial resolution over the past 2000 years. Between 200 and 1900 CE, the sub-fossil chironomid community was comprised of cold-water taxa, such as Abiskomyia, Micropsectra radialis-type, and Paracladius. Reconstructed temperatures were consistent with known climate anomalies during this period. A rapid shift in the composition of the chironomid assemblages to those with higher temperature optima ( Chironomus anthracinus-type, Dicrotendipes, and Tanytarsus lugens-type) in the late 20th century was observed in both systems. Our results demonstrate that these ecosystems are undergoing marked transformations to warmer, more nutrient-rich environments, and suggest that water sustainability pressures will likely continue in tandem with ongoing climate change. To contextualize the influence of recent warming and elucidate the status of freshwater resources over the longer term, paleolimnological methods can be usefully applied as components of vulnerability assessments. Article in Journal/Newspaper Arctic Climate change Igloolik Nunavut SAGE Publications (via Crossref) Arctic Canada Igloolik ENVELOPE(-81.800,-81.800,69.378,69.378) Nunavut The Holocene 31 7 1175 1185 |
institution |
Open Polar |
collection |
SAGE Publications (via Crossref) |
op_collection_id |
crsagepubl |
language |
English |
topic |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
spellingShingle |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change Cincio, Paige Medeiros, Andrew Scott Wesche, Sonia D Gajewski, Konrad Quantifying the vulnerability of Arctic water supply lakes through paleolimnological assessment: The case of Igloolik, Nunavut, Canada |
topic_facet |
Paleontology Earth-Surface Processes Ecology Archeology Global and Planetary Change |
description |
Anthropogenic stressors to freshwater environments have perpetuated water quality and quantity challenges for communities across Arctic Canada, making drinking water resources a primary concern for northern peoples. To understand the ecological trajectory of lakes used as freshwater supply, we conducted a paleolimnological assessment on two supplemental sources in Igloolik, Nunavut, Arctic Canada. A stratigraphic examination of biological indicators (Insecta: Diptera: Chironomidae) allowed for paleotemperature reconstructions with decadal and centennial resolution over the past 2000 years. Between 200 and 1900 CE, the sub-fossil chironomid community was comprised of cold-water taxa, such as Abiskomyia, Micropsectra radialis-type, and Paracladius. Reconstructed temperatures were consistent with known climate anomalies during this period. A rapid shift in the composition of the chironomid assemblages to those with higher temperature optima ( Chironomus anthracinus-type, Dicrotendipes, and Tanytarsus lugens-type) in the late 20th century was observed in both systems. Our results demonstrate that these ecosystems are undergoing marked transformations to warmer, more nutrient-rich environments, and suggest that water sustainability pressures will likely continue in tandem with ongoing climate change. To contextualize the influence of recent warming and elucidate the status of freshwater resources over the longer term, paleolimnological methods can be usefully applied as components of vulnerability assessments. |
author2 |
Polar Knowledge Canada crown-indigenous relations and northern affairs canada Dalhousie University |
format |
Article in Journal/Newspaper |
author |
Cincio, Paige Medeiros, Andrew Scott Wesche, Sonia D Gajewski, Konrad |
author_facet |
Cincio, Paige Medeiros, Andrew Scott Wesche, Sonia D Gajewski, Konrad |
author_sort |
Cincio, Paige |
title |
Quantifying the vulnerability of Arctic water supply lakes through paleolimnological assessment: The case of Igloolik, Nunavut, Canada |
title_short |
Quantifying the vulnerability of Arctic water supply lakes through paleolimnological assessment: The case of Igloolik, Nunavut, Canada |
title_full |
Quantifying the vulnerability of Arctic water supply lakes through paleolimnological assessment: The case of Igloolik, Nunavut, Canada |
title_fullStr |
Quantifying the vulnerability of Arctic water supply lakes through paleolimnological assessment: The case of Igloolik, Nunavut, Canada |
title_full_unstemmed |
Quantifying the vulnerability of Arctic water supply lakes through paleolimnological assessment: The case of Igloolik, Nunavut, Canada |
title_sort |
quantifying the vulnerability of arctic water supply lakes through paleolimnological assessment: the case of igloolik, nunavut, canada |
publisher |
SAGE Publications |
publishDate |
2021 |
url |
http://dx.doi.org/10.1177/09596836211003234 http://journals.sagepub.com/doi/pdf/10.1177/09596836211003234 http://journals.sagepub.com/doi/full-xml/10.1177/09596836211003234 |
long_lat |
ENVELOPE(-81.800,-81.800,69.378,69.378) |
geographic |
Arctic Canada Igloolik Nunavut |
geographic_facet |
Arctic Canada Igloolik Nunavut |
genre |
Arctic Climate change Igloolik Nunavut |
genre_facet |
Arctic Climate change Igloolik Nunavut |
op_source |
The Holocene volume 31, issue 7, page 1175-1185 ISSN 0959-6836 1477-0911 |
op_rights |
https://creativecommons.org/licenses/by-nc/4.0/ |
op_rightsnorm |
CC-BY-NC |
op_doi |
https://doi.org/10.1177/09596836211003234 |
container_title |
The Holocene |
container_volume |
31 |
container_issue |
7 |
container_start_page |
1175 |
op_container_end_page |
1185 |
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1766323891644399616 |