Thermal patterns in the heating and cooling of Iguana iguana and Ctenosaura hemilopha

David C. Spray, Daniel B. Belkin

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

1. 1. Temperatures were measured from cloacal, head, heart, lungs, nostrils and lumbosacral regions of Iguana iguana and Ctenosaura hemilopha as the animals were radiantly heated and allowed to cool. Duration, intensity, area heated and angle of incidence of the heat source were varied. 2. 2. Results were expressed in terms of a modified time constant. Time constants during a typical exposure were ranked as follows: cloaca, head, heart and lung. 3. 3. Nostril time constants suggest countercurrent heat exchange in the upper airways. 4. 4. The time constant for head heating did not differ appreciably from that of the cloaca, indicating a lack of cranial heat sequestration.

Original languageEnglish (US)
Pages (from-to)881-892
Number of pages12
JournalComparative Biochemistry and Physiology -- Part A: Physiology
Volume44
Issue number3
DOIs
StatePublished - Mar 1 1973
Externally publishedYes

Fingerprint

Iguanas
Heating
Hot Temperature
Cloaca
Cooling
Head
Lumbosacral Region
Lung
Animals
Temperature
Incidence

Keywords

  • Ctenosaura hemilopha
  • Iguana iguana
  • lizards
  • Thermoregulation

ASJC Scopus subject areas

  • Physiology
  • Molecular Biology
  • Biochemistry

Cite this

Thermal patterns in the heating and cooling of Iguana iguana and Ctenosaura hemilopha. / Spray, David C.; Belkin, Daniel B.

In: Comparative Biochemistry and Physiology -- Part A: Physiology, Vol. 44, No. 3, 01.03.1973, p. 881-892.

Research output: Contribution to journalArticle

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