Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment
Rationale Analysis of stable isotopes in tissue and excreta may provide information about animal diets and their nutritional state. As body condition may have a major influence on reproduction, linking stable isotope values to animal demographic rates may help unravel the drivers behind animal popul...
Published in: | Rapid Communications in Mass Spectrometry |
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Format: | Article in Journal/Newspaper |
Language: | English |
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2023
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Online Access: | https://curis.ku.dk/portal/da/publications/sequential-analysis-of-15n-in-guard-hair-suggests-late-gestation-is-the-most-critical-period-for-muskox-calf-recruitment(67e787ca-046c-402c-9e3e-cc9127f58685).html https://doi.org/10.1002/rcm.9470 https://curis.ku.dk/ws/files/335675558/Rapid_Comm_Mass_Spectrometry_2023_Schmidt_Sequential_analysis_of_15N_in_guard_hair_suggests_late_gestation_is_the.pdf |
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ftcopenhagenunip:oai:pure.atira.dk:publications/67e787ca-046c-402c-9e3e-cc9127f58685 2024-06-09T07:44:25+00:00 Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment Schmidt, Niels Martin Michelsen, Anders Hansen, Lars Holst Aggerbeck, Marie Ronne Stelvig, Mikkel Kutz, Susan Mosbacher, Jesper Bruun 2023 application/pdf https://curis.ku.dk/portal/da/publications/sequential-analysis-of-15n-in-guard-hair-suggests-late-gestation-is-the-most-critical-period-for-muskox-calf-recruitment(67e787ca-046c-402c-9e3e-cc9127f58685).html https://doi.org/10.1002/rcm.9470 https://curis.ku.dk/ws/files/335675558/Rapid_Comm_Mass_Spectrometry_2023_Schmidt_Sequential_analysis_of_15N_in_guard_hair_suggests_late_gestation_is_the.pdf eng eng info:eu-repo/semantics/openAccess Schmidt , N M , Michelsen , A , Hansen , L H , Aggerbeck , M R , Stelvig , M , Kutz , S & Mosbacher , J B 2023 , ' Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment ' , Rapid Communications in Mass Spectrometry , vol. 37 , no. 6 , e9470 . https://doi.org/10.1002/rcm.9470 STABLE-ISOTOPES OVIBOS-MOSCHATUS POPULATION-DYNAMICS NITROGEN ISOTOPES TAIL HAIR BODY-MASS REPRODUCTION NUTRITION PATTERNS PROTEIN article 2023 ftcopenhagenunip https://doi.org/10.1002/rcm.9470 2024-05-16T11:29:28Z Rationale Analysis of stable isotopes in tissue and excreta may provide information about animal diets and their nutritional state. As body condition may have a major influence on reproduction, linking stable isotope values to animal demographic rates may help unravel the drivers behind animal population dynamics. Methods We performed sequential analysis of δ15N values in guard hair from 21 muskoxen (Ovibos moschatus) from Zackenberg in high arctic Greenland. We were able to reconstruct the dietary history for the population over a 5-year period with contrasting environmental conditions. We examined the linkage between guard hair δ15N values in 12 three-month periods and muskox calf recruitment to detect critical periods for muskox reproduction. Finally, we conducted similar analyses of the correlation between environmental conditions (snow depth and air temperature) and calf recruitment. Results δ15N values exhibited a clear seasonal pattern with high levels in summer and low levels in winter. However, large inter-annual variation was found in winter values, suggesting varying levels of catabolism depending on snow conditions. In particular δ15N values during January–March were linked to muskox recruitment rates, with higher values coinciding with lower calf recruitment. δ15N values were a better predictor of muskox recruitment rates than environmental conditions. Conclusions Although environmental conditions may ultimately determine the dietary δ15N signal in muskox guard hairs, muskox calf recruitment was more strongly correlated with δ15N values than ambient snow and temperature. The period January–March, corresponding to late gestation, appears particularly critical for muskox reproduction. RationaleAnalysis of stable isotopes in tissue and excreta may provide information about animal diets and their nutritional state. As body condition may have a major influence on reproduction, linking stable isotope values to animal demographic rates may help unravel the drivers behind animal population dynamics. ... Article in Journal/Newspaper Arctic Greenland muskox ovibos moschatus Zackenberg University of Copenhagen: Research Arctic Greenland Rapid Communications in Mass Spectrometry 37 6 |
institution |
Open Polar |
collection |
University of Copenhagen: Research |
op_collection_id |
ftcopenhagenunip |
language |
English |
topic |
STABLE-ISOTOPES OVIBOS-MOSCHATUS POPULATION-DYNAMICS NITROGEN ISOTOPES TAIL HAIR BODY-MASS REPRODUCTION NUTRITION PATTERNS PROTEIN |
spellingShingle |
STABLE-ISOTOPES OVIBOS-MOSCHATUS POPULATION-DYNAMICS NITROGEN ISOTOPES TAIL HAIR BODY-MASS REPRODUCTION NUTRITION PATTERNS PROTEIN Schmidt, Niels Martin Michelsen, Anders Hansen, Lars Holst Aggerbeck, Marie Ronne Stelvig, Mikkel Kutz, Susan Mosbacher, Jesper Bruun Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment |
topic_facet |
STABLE-ISOTOPES OVIBOS-MOSCHATUS POPULATION-DYNAMICS NITROGEN ISOTOPES TAIL HAIR BODY-MASS REPRODUCTION NUTRITION PATTERNS PROTEIN |
description |
Rationale Analysis of stable isotopes in tissue and excreta may provide information about animal diets and their nutritional state. As body condition may have a major influence on reproduction, linking stable isotope values to animal demographic rates may help unravel the drivers behind animal population dynamics. Methods We performed sequential analysis of δ15N values in guard hair from 21 muskoxen (Ovibos moschatus) from Zackenberg in high arctic Greenland. We were able to reconstruct the dietary history for the population over a 5-year period with contrasting environmental conditions. We examined the linkage between guard hair δ15N values in 12 three-month periods and muskox calf recruitment to detect critical periods for muskox reproduction. Finally, we conducted similar analyses of the correlation between environmental conditions (snow depth and air temperature) and calf recruitment. Results δ15N values exhibited a clear seasonal pattern with high levels in summer and low levels in winter. However, large inter-annual variation was found in winter values, suggesting varying levels of catabolism depending on snow conditions. In particular δ15N values during January–March were linked to muskox recruitment rates, with higher values coinciding with lower calf recruitment. δ15N values were a better predictor of muskox recruitment rates than environmental conditions. Conclusions Although environmental conditions may ultimately determine the dietary δ15N signal in muskox guard hairs, muskox calf recruitment was more strongly correlated with δ15N values than ambient snow and temperature. The period January–March, corresponding to late gestation, appears particularly critical for muskox reproduction. RationaleAnalysis of stable isotopes in tissue and excreta may provide information about animal diets and their nutritional state. As body condition may have a major influence on reproduction, linking stable isotope values to animal demographic rates may help unravel the drivers behind animal population dynamics. ... |
format |
Article in Journal/Newspaper |
author |
Schmidt, Niels Martin Michelsen, Anders Hansen, Lars Holst Aggerbeck, Marie Ronne Stelvig, Mikkel Kutz, Susan Mosbacher, Jesper Bruun |
author_facet |
Schmidt, Niels Martin Michelsen, Anders Hansen, Lars Holst Aggerbeck, Marie Ronne Stelvig, Mikkel Kutz, Susan Mosbacher, Jesper Bruun |
author_sort |
Schmidt, Niels Martin |
title |
Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment |
title_short |
Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment |
title_full |
Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment |
title_fullStr |
Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment |
title_full_unstemmed |
Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment |
title_sort |
sequential analysis of δ 15 n in guard hair suggests late gestation is the most critical period for muskox calf recruitment |
publishDate |
2023 |
url |
https://curis.ku.dk/portal/da/publications/sequential-analysis-of-15n-in-guard-hair-suggests-late-gestation-is-the-most-critical-period-for-muskox-calf-recruitment(67e787ca-046c-402c-9e3e-cc9127f58685).html https://doi.org/10.1002/rcm.9470 https://curis.ku.dk/ws/files/335675558/Rapid_Comm_Mass_Spectrometry_2023_Schmidt_Sequential_analysis_of_15N_in_guard_hair_suggests_late_gestation_is_the.pdf |
geographic |
Arctic Greenland |
geographic_facet |
Arctic Greenland |
genre |
Arctic Greenland muskox ovibos moschatus Zackenberg |
genre_facet |
Arctic Greenland muskox ovibos moschatus Zackenberg |
op_source |
Schmidt , N M , Michelsen , A , Hansen , L H , Aggerbeck , M R , Stelvig , M , Kutz , S & Mosbacher , J B 2023 , ' Sequential analysis of δ 15 N in guard hair suggests late gestation is the most critical period for muskox calf recruitment ' , Rapid Communications in Mass Spectrometry , vol. 37 , no. 6 , e9470 . https://doi.org/10.1002/rcm.9470 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/rcm.9470 |
container_title |
Rapid Communications in Mass Spectrometry |
container_volume |
37 |
container_issue |
6 |
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1801373160236384256 |