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Large mammal telomere length variation across ecoregions

Fohringer, Christian and Hoelzl, Franz and Allen, Andrew M. and Cayol, Claire and Ericsson, Göran and Spong, Göran and Smith, Steven and Singh, Navinder (2022). Large mammal telomere length variation across ecoregions. BMC ecology and evolution. 22 , 105
[Research article]

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Abstract

Background Telomere length provides a physiological proxy for accumulated stress in animals. While there is a growing consensus over how telomere dynamics and their patterns are linked to life history variation and individual experience, knowledge on the impact of exposure to different stressors at a large spatial scale on telomere length is still lacking. How exposure to different stressors at a regional scale interacts with individual differences in life history is also poorly understood. To better understand large-scale regional influences, we investigated telomere length variation in moose (Alces alces) distributed across three ecoregions. We analyzed 153 samples of 106 moose representing moose of both sexes and range of ages to measure relative telomere lengths (RTL) in white blood cells. Results We found that average RTL was significantly shorter in a northern (montane) and southern (sarmatic) ecoregion where moose experience chronic stress related to severe summer and winter temperatures as well as high anthropogenic land-use compared to the boreal region. Our study suggests that animals in the northern boreal forests, with relatively homogenous land use, are less disturbed by environmental and anthropogenic stressors. In contrast, animals in areas experiencing a higher rate of anthropogenic and environmental change experience increased stress. Conclusion Although animals can often adapt to predictable stressors, our data suggest that some environmental conditions, even though predictable and ubiquitous, can generate population level differences of long-term stress. By measuring RTL in moose for the first time, we provide valuable insights towards our current understanding of telomere biology in free-ranging wildlife in human-modified ecosystems.

Authors/Creators:Fohringer, Christian and Hoelzl, Franz and Allen, Andrew M. and Cayol, Claire and Ericsson, Göran and Spong, Göran and Smith, Steven and Singh, Navinder
Title:Large mammal telomere length variation across ecoregions
Series Name/Journal:BMC ecology and evolution
Year of publishing :2022
Volume:22
Article number:105
Number of Pages:10
Publisher:BMC
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
(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Environmental Sciences (social aspects to be 507)
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Zoology
Keywords:Alces alces, Biomarker, Chronic stress, Human modification, Life history, Telomere associations
URN:NBN:urn:nbn:se:slu:epsilon-p-118934
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118934
Additional ID:
Type of IDID
DOI10.1186/s12862-022-02050-5
Web of Science (WoS)000847340100001
ID Code:28857
Faculty:S - Faculty of Forest Sciences
Department:(S) > Dept. of Wildlife, Fish and Environmental Studies
Deposited By: SLUpub Connector
Deposited On:15 Sep 2022 11:39
Metadata Last Modified:15 Sep 2022 11:41

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