Sequential analysis of δ15N in guard hair suggests late gestation is the most critical period for muskox calf recruitment

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Standard

Sequential analysis of δ15N 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.

I: Rapid Communications in Mass Spectrometry, Bind 37, Nr. 6, e9470, 2023.

Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt

Harvard

Schmidt, NM, Michelsen, A, Hansen, LH, Aggerbeck, MR, Stelvig, M, Kutz, S & Mosbacher, JB 2023, 'Sequential analysis of δ15N in guard hair suggests late gestation is the most critical period for muskox calf recruitment', Rapid Communications in Mass Spectrometry, bind 37, nr. 6, e9470. https://doi.org/10.1002/rcm.9470

APA

Schmidt, N. M., Michelsen, A., Hansen, L. H., Aggerbeck, M. R., Stelvig, M., Kutz, S., & Mosbacher, J. B. (2023). Sequential analysis of δ15N in guard hair suggests late gestation is the most critical period for muskox calf recruitment. Rapid Communications in Mass Spectrometry, 37(6), [e9470]. https://doi.org/10.1002/rcm.9470

Vancouver

Schmidt NM, Michelsen A, Hansen LH, Aggerbeck MR, Stelvig M, Kutz S o.a. Sequential analysis of δ15N in guard hair suggests late gestation is the most critical period for muskox calf recruitment. Rapid Communications in Mass Spectrometry. 2023;37(6). e9470. https://doi.org/10.1002/rcm.9470

Author

Schmidt, Niels Martin ; Michelsen, Anders ; Hansen, Lars Holst ; Aggerbeck, Marie Ronne ; Stelvig, Mikkel ; Kutz, Susan ; Mosbacher, Jesper Bruun. / Sequential analysis of δ15N in guard hair suggests late gestation is the most critical period for muskox calf recruitment. I: Rapid Communications in Mass Spectrometry. 2023 ; Bind 37, Nr. 6.

Bibtex

@article{67e787ca046c402c9e3ecc9127f58685,
title = "Sequential analysis of δ15N in guard hair suggests late gestation is the most critical period for muskox calf recruitment",
abstract = "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. MethodsWe performed sequential analysis of delta N-15 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 delta N-15 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 delta N-15 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 delta N-15 values during January-March were linked to muskox recruitment rates, with higher values coinciding with lower calf recruitment. delta N-15 values were a better predictor of muskox recruitment rates than environmental conditions. ConclusionsAlthough environmental conditions may ultimately determine the dietary delta N-15 signal in muskox guard hairs, muskox calf recruitment was more strongly correlated with delta N-15 values than ambient snow and temperature. The period January-March, corresponding to late gestation, appears particularly critical for muskox reproduction.",
keywords = "STABLE-ISOTOPES, OVIBOS-MOSCHATUS, POPULATION-DYNAMICS, NITROGEN ISOTOPES, TAIL HAIR, BODY-MASS, REPRODUCTION, NUTRITION, PATTERNS, PROTEIN",
author = "Schmidt, {Niels Martin} and Anders Michelsen and Hansen, {Lars Holst} and Aggerbeck, {Marie Ronne} and Mikkel Stelvig and Susan Kutz and Mosbacher, {Jesper Bruun}",
year = "2023",
doi = "10.1002/rcm.9470",
language = "English",
volume = "37",
journal = "Rapid Communications in Mass Spectrometry",
issn = "0951-4198",
publisher = "JohnWiley & Sons Ltd",
number = "6",

}

RIS

TY - JOUR

T1 - Sequential analysis of δ15N in guard hair suggests late gestation is the most critical period for muskox calf recruitment

AU - Schmidt, Niels Martin

AU - Michelsen, Anders

AU - Hansen, Lars Holst

AU - Aggerbeck, Marie Ronne

AU - Stelvig, Mikkel

AU - Kutz, Susan

AU - Mosbacher, Jesper Bruun

PY - 2023

Y1 - 2023

N2 - 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. MethodsWe performed sequential analysis of delta N-15 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 delta N-15 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 delta N-15 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 delta N-15 values during January-March were linked to muskox recruitment rates, with higher values coinciding with lower calf recruitment. delta N-15 values were a better predictor of muskox recruitment rates than environmental conditions. ConclusionsAlthough environmental conditions may ultimately determine the dietary delta N-15 signal in muskox guard hairs, muskox calf recruitment was more strongly correlated with delta N-15 values than ambient snow and temperature. The period January-March, corresponding to late gestation, appears particularly critical for muskox reproduction.

AB - 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. MethodsWe performed sequential analysis of delta N-15 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 delta N-15 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 delta N-15 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 delta N-15 values during January-March were linked to muskox recruitment rates, with higher values coinciding with lower calf recruitment. delta N-15 values were a better predictor of muskox recruitment rates than environmental conditions. ConclusionsAlthough environmental conditions may ultimately determine the dietary delta N-15 signal in muskox guard hairs, muskox calf recruitment was more strongly correlated with delta N-15 values than ambient snow and temperature. The period January-March, corresponding to late gestation, appears particularly critical for muskox reproduction.

KW - STABLE-ISOTOPES

KW - OVIBOS-MOSCHATUS

KW - POPULATION-DYNAMICS

KW - NITROGEN ISOTOPES

KW - TAIL HAIR

KW - BODY-MASS

KW - REPRODUCTION

KW - NUTRITION

KW - PATTERNS

KW - PROTEIN

U2 - 10.1002/rcm.9470

DO - 10.1002/rcm.9470

M3 - Journal article

C2 - 36601893

VL - 37

JO - Rapid Communications in Mass Spectrometry

JF - Rapid Communications in Mass Spectrometry

SN - 0951-4198

IS - 6

M1 - e9470

ER -

ID: 335675554