Evolution of pastoralism in Southern Greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments
International audience To reconstruct the evolution of livestock in SW Greenland over the last two millennia, we measured the concentration of bile acids in a sedimentary sequence retrieved from Lake Igaliku. Deoxycholic acid (DOC) was the sole bile acid. and was present throughout the sequence.The...
Published in: | Organic Geochemistry |
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Main Authors: | , , , , , , , |
Other Authors: | , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2015
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Subjects: | |
Online Access: | https://insu.hal.science/insu-01115614 https://insu.hal.science/insu-01115614/document https://insu.hal.science/insu-01115614/file/Guillemot-2015.pdf https://doi.org/10.1016/j.orggeochem.2015.01.012 |
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ftobservparis:oai:HAL:insu-01115614v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
Archive de l'Observatoire de Paris (HAL) |
op_collection_id |
ftobservparis |
language |
English |
topic |
Greenland Pastoralism Norse Lake sediments Deoxycholic acid Coprophilous fungal spores [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
spellingShingle |
Greenland Pastoralism Norse Lake sediments Deoxycholic acid Coprophilous fungal spores [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment Guillemot, Typhaine Zocatelli, Renata Bichet, Vincent Jacob, Jérémy Massa, Charly Le Milbeau, Claude Richard, Hervé Gauthier, Emilie Evolution of pastoralism in Southern Greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments |
topic_facet |
Greenland Pastoralism Norse Lake sediments Deoxycholic acid Coprophilous fungal spores [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment |
description |
International audience To reconstruct the evolution of livestock in SW Greenland over the last two millennia, we measured the concentration of bile acids in a sedimentary sequence retrieved from Lake Igaliku. Deoxycholic acid (DOC) was the sole bile acid. and was present throughout the sequence.The DOC flux correlated quantitatively with that of coprophilous fungal spores. Maximum DOC and coprophilous fungal spores fluxe was recorded during the two periods of human settlement and grazing activity in the region (i.e. the Norse settlement during the Middle Ages and the recent Danish agricultural phase since 1920). These flux values were consistent with the presence of recent livestock around the lake and are attested to by way of archaeological data relating to the Norse period. In contrast, the DOC and coprophilous fungal spores background during pre-Norse times and the Little Ice Age (LIA), indicated the presence of wild herbivores. Lower DOC and coprophilous fungal spore fluxes values after the Norse abandonment, compared with pre-colonization conditions, could indicate that Norse activity in conjunction with climate pejoration, altered durably the pristine wildlife.Therefore, these quantitative correlations between DOC and coprophilous fungal spores fluxes potentially suggest a quantitative relationship with the livestock grazing in the catchment. The comparison between sedimentary DOC and coprophilous fungal spores provides tremendous highlights on past pastoral dynamics over the last 2000 yr in SW Greenland. |
author2 |
Laboratoire Chrono-environnement (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO) Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) ANR-10-CEPL-0008,GREENLAND,Groenland vert(2010) |
format |
Article in Journal/Newspaper |
author |
Guillemot, Typhaine Zocatelli, Renata Bichet, Vincent Jacob, Jérémy Massa, Charly Le Milbeau, Claude Richard, Hervé Gauthier, Emilie |
author_facet |
Guillemot, Typhaine Zocatelli, Renata Bichet, Vincent Jacob, Jérémy Massa, Charly Le Milbeau, Claude Richard, Hervé Gauthier, Emilie |
author_sort |
Guillemot, Typhaine |
title |
Evolution of pastoralism in Southern Greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments |
title_short |
Evolution of pastoralism in Southern Greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments |
title_full |
Evolution of pastoralism in Southern Greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments |
title_fullStr |
Evolution of pastoralism in Southern Greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments |
title_full_unstemmed |
Evolution of pastoralism in Southern Greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments |
title_sort |
evolution of pastoralism in southern greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments |
publisher |
HAL CCSD |
publishDate |
2015 |
url |
https://insu.hal.science/insu-01115614 https://insu.hal.science/insu-01115614/document https://insu.hal.science/insu-01115614/file/Guillemot-2015.pdf https://doi.org/10.1016/j.orggeochem.2015.01.012 |
genre |
Greenland Igaliku |
genre_facet |
Greenland Igaliku |
op_source |
ISSN: 0146-6380 Organic Geochemistry https://insu.hal.science/insu-01115614 Organic Geochemistry, 2015, 81, pp.40-44. ⟨10.1016/j.orggeochem.2015.01.012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.orggeochem.2015.01.012 insu-01115614 https://insu.hal.science/insu-01115614 https://insu.hal.science/insu-01115614/document https://insu.hal.science/insu-01115614/file/Guillemot-2015.pdf doi:10.1016/j.orggeochem.2015.01.012 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.orggeochem.2015.01.012 |
container_title |
Organic Geochemistry |
container_volume |
81 |
container_start_page |
40 |
op_container_end_page |
44 |
_version_ |
1810446370061942784 |
spelling |
ftobservparis:oai:HAL:insu-01115614v1 2024-09-15T18:08:59+00:00 Evolution of pastoralism in Southern Greenland during the last two millennia reconstructed from bile acids and coprophilous fungal spores in lacustrine sediments Guillemot, Typhaine Zocatelli, Renata Bichet, Vincent Jacob, Jérémy Massa, Charly Le Milbeau, Claude Richard, Hervé Gauthier, Emilie Laboratoire Chrono-environnement (UMR 6249) (LCE) Centre National de la Recherche Scientifique (CNRS)-Université de Franche-Comté (UFC) Université Bourgogne Franche-Comté COMUE (UBFC)-Université Bourgogne Franche-Comté COMUE (UBFC) Institut des Sciences de la Terre d'Orléans - UMR7327 (ISTO) Bureau de Recherches Géologiques et Minières (BRGM)-Observatoire des Sciences de l'Univers en région Centre (OSUC) Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS) ANR-10-CEPL-0008,GREENLAND,Groenland vert(2010) 2015 https://insu.hal.science/insu-01115614 https://insu.hal.science/insu-01115614/document https://insu.hal.science/insu-01115614/file/Guillemot-2015.pdf https://doi.org/10.1016/j.orggeochem.2015.01.012 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.orggeochem.2015.01.012 insu-01115614 https://insu.hal.science/insu-01115614 https://insu.hal.science/insu-01115614/document https://insu.hal.science/insu-01115614/file/Guillemot-2015.pdf doi:10.1016/j.orggeochem.2015.01.012 info:eu-repo/semantics/OpenAccess ISSN: 0146-6380 Organic Geochemistry https://insu.hal.science/insu-01115614 Organic Geochemistry, 2015, 81, pp.40-44. ⟨10.1016/j.orggeochem.2015.01.012⟩ Greenland Pastoralism Norse Lake sediments Deoxycholic acid Coprophilous fungal spores [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment info:eu-repo/semantics/article Journal articles 2015 ftobservparis https://doi.org/10.1016/j.orggeochem.2015.01.012 2024-07-15T23:39:01Z International audience To reconstruct the evolution of livestock in SW Greenland over the last two millennia, we measured the concentration of bile acids in a sedimentary sequence retrieved from Lake Igaliku. Deoxycholic acid (DOC) was the sole bile acid. and was present throughout the sequence.The DOC flux correlated quantitatively with that of coprophilous fungal spores. Maximum DOC and coprophilous fungal spores fluxe was recorded during the two periods of human settlement and grazing activity in the region (i.e. the Norse settlement during the Middle Ages and the recent Danish agricultural phase since 1920). These flux values were consistent with the presence of recent livestock around the lake and are attested to by way of archaeological data relating to the Norse period. In contrast, the DOC and coprophilous fungal spores background during pre-Norse times and the Little Ice Age (LIA), indicated the presence of wild herbivores. Lower DOC and coprophilous fungal spore fluxes values after the Norse abandonment, compared with pre-colonization conditions, could indicate that Norse activity in conjunction with climate pejoration, altered durably the pristine wildlife.Therefore, these quantitative correlations between DOC and coprophilous fungal spores fluxes potentially suggest a quantitative relationship with the livestock grazing in the catchment. The comparison between sedimentary DOC and coprophilous fungal spores provides tremendous highlights on past pastoral dynamics over the last 2000 yr in SW Greenland. Article in Journal/Newspaper Greenland Igaliku Archive de l'Observatoire de Paris (HAL) Organic Geochemistry 81 40 44 |