Changes in Body Temperature of Small Mammals and Birds in a Few Minutes Range as Reflection of Environmental Influences

Authors: M E Diatroptov

Year: 2021 Jul 23

Category: Biology, Environmental Sciences

Journal: Bull Exp Biol Med

Institution: Bull Exp Biol Med

DOI: 10.1007/s10517-021-05234-z

URL: https://pubmed.ncbi.nlm.nih.gov/34297296/

Abstract

Overview

This study investigates the rapid changes in intraperitoneal body temperature among laboratory mice, Jungar hamsters, European greenfinch Chloris chloris, and starlings.

Findings

  • Temperature changes are significantly correlated both within the same species and across different classes (birds and mammals) though they were separated and exposed to varying light conditions.
  • The study highlights a synchronization between phases of pronounced body temperature rhythms and geomagnetic fields (GMF), matching within ±1 minute.
  • Notable synchronization happens even with very low GMF oscillation amplitude (0.4 nT), indicating sensitivity to minimal environmental changes.
  • However, no body temperature reaction was observed in response to larger, irregular GMF disturbances (6-10 nT).

Conclusion

This research suggests an intricate relationship between the thermal control in animals and extremely subtle geomagnetic variations. There is a connection to health risks associated with the impact of electromagnetic fields even at much lower intensities than previously recognized. Understanding these impacts on biological rhythms is crucial for further studies on ecological and health consequences.

body temperature small mammals birds environmental impact geomagnetic fields
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