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Integrating omics to characterize eco-physiological adaptations: How moose diet and metabolism differ across biogeographic zones

Fohringer, Christian and Dudka, Ilona and Spitzer, Robert and Stenbacka, Fredrik and Rzhepishevska, Olena and Cromsigt, Joris and Grobner, Gerhard and Ericsson, Göran and Singh, Navinder (2021). Integrating omics to characterize eco-physiological adaptations: How moose diet and metabolism differ across biogeographic zones. Ecology and Evolution. 11 , 3159-3183
[Research article]

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Abstract

With accelerated land conversion and global heating at northern latitudes, it becomes crucial to understand, how life histories of animals in extreme environments adapt to these changes. Animals may either adapt by adjusting foraging behavior or through physiological responses, including adjusting their energy metabolism or both. Until now, it has been difficult to study such adaptations in free-ranging animals due to methodological constraints that prevent extensive spatiotemporal coverage of ecological and physiological data.Through a novel approach of combining DNA-metabarcoding and nuclear magnetic resonance (NMR)-based metabolomics, we aim to elucidate the links between diets and metabolism in Scandinavian moose Alces alces over three biogeographic zones using a unique dataset of 265 marked individuals.Based on 17 diet items, we identified four different classes of diet types that match browse species availability in respective ecoregions in northern Sweden. Individuals in the boreal zone consumed predominantly pine and had the least diverse diets, while individuals with highest diet diversity occurred in the coastal areas. Males exhibited lower average diet diversity than females.We identified several molecular markers indicating metabolic constraints linked to diet constraints in terms of food availability during winter. While animals consuming pine had higher lipid, phospocholine, and glycerophosphocholine concentrations in their serum than other diet types, birch- and willow/aspen-rich diets exhibit elevated concentrations of several amino acids. The individuals with highest diet diversity had increased levels of ketone bodies, indicating extensive periods of starvation for these individuals.Our results show how the adaptive capacity of moose at the eco-physiological level varies over a large eco-geographic scale and how it responds to land use pressures. In light of extensive ongoing climate and land use changes, these findings pave the way for future scenario building for animal adaptive capacity.

Authors/Creators:Fohringer, Christian and Dudka, Ilona and Spitzer, Robert and Stenbacka, Fredrik and Rzhepishevska, Olena and Cromsigt, Joris and Grobner, Gerhard and Ericsson, Göran and Singh, Navinder
Title:Integrating omics to characterize eco-physiological adaptations: How moose diet and metabolism differ across biogeographic zones
Series Name/Journal:Ecology and Evolution
Year of publishing :2021
Volume:11
Page range:3159-3183
Number of Pages:25
Publisher:WILEY
ISSN:2045-7758
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:biomarker, DNA‐metabarcoding, energy metabolism, metabolomics, nutritional ecology, starvation, ungulate
URN:NBN:urn:nbn:se:slu:epsilon-p-111517
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111517
Additional ID:
Type of IDID
DOI10.1002/ece3.7265
Web of Science (WoS)000625532300001
ID Code:23301
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:19 Apr 2021 14:23
Metadata Last Modified:19 Apr 2021 14:31

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