Thermoregulation and sleep: Effects of thermal stress on sleep patterns of Glaucous-winged gulls (Larus glaucescens)

Mark R. Opp, Nigel J. Ball., Don E. Miller, Charles J. Amlaner

Research output: Contribution to journalArticle

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1. 1. To determine effects of thermal stress on avian sleep patterns, incubating Glaucous-winged gulls were subjected to conditions of heat loss and heat gain via conduction from hollow copper eggs. 2. 2. Heated manipulations resulted in significant reductions in sleep and rest relative to controls, whereas cooled manipulations had little effect. 3. 3. The resilience of sleep to thermal stress is greater than that of rest. We suggest that the incompatability of sleep with conductive processes to off-load heat from the eggs is responsible in this case. 4. 4. Pant Sleep, the behaviour in which birds appear to maintain some the benefits of both sleep and panting, is not used as a thermoregulatory strategy, but may allow some sleep when under thermal loading.

Original languageEnglish
Pages (from-to)199-202
Number of pages4
JournalJournal of Thermal Biology
Issue number3
StatePublished - Aug 1987



  • Larus glaucescens
  • Sleep
  • avian
  • gull
  • panting
  • resilience
  • thermal stress
  • thermoregulation

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