Evolution of Coastal Subarctic Lakes in the Context of Climatic and Geological Changes and Human Occupation (North-Central Labrador, Canada)
Climate fluctuations and landscape evolution, with their associated impacts on northern coastal ecosystems, likely influenced human populations of Nunatsiavut who have inhabited the region for nearly 7000 years. As part of an interdisciplinary research initiative within the Nain Archipelago on the s...
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ftmdpi:oai:mdpi.com:/2076-3263/13/4/97/ 2023-08-20T04:08:00+02:00 Evolution of Coastal Subarctic Lakes in the Context of Climatic and Geological Changes and Human Occupation (North-Central Labrador, Canada) Camille Latourelle-Vigeant Reinhard Pienitz Najat Bhiry agris 2023-03-24 application/pdf https://doi.org/10.3390/geosciences13040097 EN eng Multidisciplinary Digital Publishing Institute https://dx.doi.org/10.3390/geosciences13040097 https://creativecommons.org/licenses/by/4.0/ Geosciences; Volume 13; Issue 4; Pages: 97 palaeogeography palaeolimnology human–environment relationship environmental archaeology Nunatsiavut Labrador climate change Text 2023 ftmdpi https://doi.org/10.3390/geosciences13040097 2023-08-01T09:25:37Z Climate fluctuations and landscape evolution, with their associated impacts on northern coastal ecosystems, likely influenced human populations of Nunatsiavut who have inhabited the region for nearly 7000 years. As part of an interdisciplinary research initiative within the Nain Archipelago on the subarctic coast of Labrador, this project sought to reconstruct the postglacial palaeoclimatic and palaeoenvironmental variability of Dog Island and document its impacts on the evolution of lakes located in the vicinity of significant archaeological sites. To address these questions, we analysed physical, geochemical, and biological indicators preserved in sediment cores of two lakes. Results from Oakes Bay West Lake revealed gradual acidification since ca. 4900 cal. yr BP, coherent with terrestrial vegetation development and/or neoglacial cooling, interrupted by periods of milder climatic conditions (ca. 4900–3640 cal. yr BP and ca. 1520 cal. yr BP—present) that favoured large sediment inputs. Evilik Lake revealed the classic sequence of isolation of the basin in three major phases in response to glacio-isostatic rebound. These complementary results allowed for the development of a local palaeoenvironmental framework that contributes to a better understanding of how landscape evolution and climate have influenced human societies through site availability and proximity to marine resources, and how, in turn, they impacted their immediate environment through activities, such as wood harvesting and its associated effects on nutrients and lake sediment inputs. Text Nain Subarctic MDPI Open Access Publishing Canada Nain ENVELOPE(-61.695,-61.695,56.542,56.542) Dog Island ENVELOPE(-54.698,-54.698,49.517,49.517) Geosciences 13 4 97 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
palaeogeography palaeolimnology human–environment relationship environmental archaeology Nunatsiavut Labrador climate change |
spellingShingle |
palaeogeography palaeolimnology human–environment relationship environmental archaeology Nunatsiavut Labrador climate change Camille Latourelle-Vigeant Reinhard Pienitz Najat Bhiry Evolution of Coastal Subarctic Lakes in the Context of Climatic and Geological Changes and Human Occupation (North-Central Labrador, Canada) |
topic_facet |
palaeogeography palaeolimnology human–environment relationship environmental archaeology Nunatsiavut Labrador climate change |
description |
Climate fluctuations and landscape evolution, with their associated impacts on northern coastal ecosystems, likely influenced human populations of Nunatsiavut who have inhabited the region for nearly 7000 years. As part of an interdisciplinary research initiative within the Nain Archipelago on the subarctic coast of Labrador, this project sought to reconstruct the postglacial palaeoclimatic and palaeoenvironmental variability of Dog Island and document its impacts on the evolution of lakes located in the vicinity of significant archaeological sites. To address these questions, we analysed physical, geochemical, and biological indicators preserved in sediment cores of two lakes. Results from Oakes Bay West Lake revealed gradual acidification since ca. 4900 cal. yr BP, coherent with terrestrial vegetation development and/or neoglacial cooling, interrupted by periods of milder climatic conditions (ca. 4900–3640 cal. yr BP and ca. 1520 cal. yr BP—present) that favoured large sediment inputs. Evilik Lake revealed the classic sequence of isolation of the basin in three major phases in response to glacio-isostatic rebound. These complementary results allowed for the development of a local palaeoenvironmental framework that contributes to a better understanding of how landscape evolution and climate have influenced human societies through site availability and proximity to marine resources, and how, in turn, they impacted their immediate environment through activities, such as wood harvesting and its associated effects on nutrients and lake sediment inputs. |
format |
Text |
author |
Camille Latourelle-Vigeant Reinhard Pienitz Najat Bhiry |
author_facet |
Camille Latourelle-Vigeant Reinhard Pienitz Najat Bhiry |
author_sort |
Camille Latourelle-Vigeant |
title |
Evolution of Coastal Subarctic Lakes in the Context of Climatic and Geological Changes and Human Occupation (North-Central Labrador, Canada) |
title_short |
Evolution of Coastal Subarctic Lakes in the Context of Climatic and Geological Changes and Human Occupation (North-Central Labrador, Canada) |
title_full |
Evolution of Coastal Subarctic Lakes in the Context of Climatic and Geological Changes and Human Occupation (North-Central Labrador, Canada) |
title_fullStr |
Evolution of Coastal Subarctic Lakes in the Context of Climatic and Geological Changes and Human Occupation (North-Central Labrador, Canada) |
title_full_unstemmed |
Evolution of Coastal Subarctic Lakes in the Context of Climatic and Geological Changes and Human Occupation (North-Central Labrador, Canada) |
title_sort |
evolution of coastal subarctic lakes in the context of climatic and geological changes and human occupation (north-central labrador, canada) |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2023 |
url |
https://doi.org/10.3390/geosciences13040097 |
op_coverage |
agris |
long_lat |
ENVELOPE(-61.695,-61.695,56.542,56.542) ENVELOPE(-54.698,-54.698,49.517,49.517) |
geographic |
Canada Nain Dog Island |
geographic_facet |
Canada Nain Dog Island |
genre |
Nain Subarctic |
genre_facet |
Nain Subarctic |
op_source |
Geosciences; Volume 13; Issue 4; Pages: 97 |
op_relation |
https://dx.doi.org/10.3390/geosciences13040097 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/geosciences13040097 |
container_title |
Geosciences |
container_volume |
13 |
container_issue |
4 |
container_start_page |
97 |
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1774720034585706496 |