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Field-Based Thermal Physiology Assay: Cold Shock Recovery under Ambient Conditions
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Climate change and ageing in ectotherms.

Pablo Burraco1,2, Germán Orizaola3,4, Pat Monaghan1

  • 1Institute of Biodiversity, Animal Health, and Comparative Medicine, College of Medical, Veterinary, and Life Sciences, University of Glasgow, Glasgow, UK.

Global Change Biology
|August 25, 2020
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Summary
This summary is machine-generated.

Global warming accelerates ectotherm ageing by increasing metabolic demands and oxidative stress. Further research is crucial for effective biodiversity conservation strategies.

Keywords:
global warmingoxidative stresssenescencetelomerethermal stress

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Area of Science:

  • Ecology
  • Evolutionary Biology
  • Gerontology

Background:

  • Climate change significantly impacts ectotherms due to their reliance on external temperatures.
  • Rising temperatures can increase ectotherm growth rates and induce thermal stress, both metabolically demanding.
  • These demands can lead to increased oxidative damage and accelerated ageing.

Purpose of the Study:

  • To explore the effects of global warming on ectotherm ageing.
  • Investigate the roles of reactive oxygen species, oxidative damage, and telomere shortening.
  • Examine impacts at individual and intergenerational levels.

Main Methods:

  • Review of existing evidence, primarily from vertebrates, with broad applicability to invertebrates.
  • Analysis of how increased temperature affects metabolic rate, oxidative stress, and telomere dynamics.
  • Discussion of potential buffering mechanisms and conservation applications.

Main Results:

  • Global warming can accelerate ageing in ectotherms through increased metabolic costs and oxidative stress.
  • Oxidative damage and telomere shortening are key mechanisms linking warming to accelerated ageing.
  • Evidence suggests impacts at both individual and intergenerational levels.

Conclusions:

  • Urgent need for ecological, biogeographical, and evolutionary studies on ectotherm ageing under climate change.
  • Understanding warming's impact on ectotherm life histories, especially ageing, is vital for conservation.
  • Integrating ageing research into biodiversity preservation measures can enhance their effectiveness.