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Ecological importance of the thermal emissivity of avian eggshells

  • Lars Olof Björn
  • Per Uvdal
  • Shaoshan Li
Publishing year: 2012
Language: English
Pages: 62-66
Publication/Series: Journal of Theoretical Biology
Volume: 301
Document type: Journal article
Publisher: Academic Press

Abstract english

Breeding birds have to divide their time between egg incubation and foraging. Particularly in cases when only one parent incubates the eggs, and especially in cold climates, the cooling of the eggs during absence from the nest may be problematic. In the present study we find that the thermal emissivity of eggshells may be ecologically important, and that an evolutionary pressure towards lower emissivity for exposed eggs in cold climates exists. We plan to experimentally compare emissivities among species in a future study. (C) 2012 Elsevier Ltd. All rights reserved.


  • Biological Sciences
  • Bird
  • Egg temperature
  • Heat radiation
  • Incubation
  • Thermal heat
  • dissipation


  • ISSN: 1095-8541
Lars Olof Björn
E-mail: lars_olof [dot] bjorn [at] biol [dot] lu [dot] se

Professor emeritus

Molecular Cell Biology

+46 46 222 72 53