Rhinarium temperature dynamics in domestic dogs
(2017) In Journal of Thermal Biology 70. p.15-19- Abstract
Many mammals have specialized nose-tips with glabrous and often wet skin, called rhinaria. The function of the rhinarium is unknown in most species. Rhinaria differ not only in shape and skin structure, but also in skin temperature. They are considerably colder in carnivorans than in herbivorous artio- and perissodactyls. Domestic dogs are carnivorans and their noses often feel cold, such that they can be used as an abundant and easily accessible model species. We performed a study on rhinarium temperature in dogs under various ambient temperatures as well as in different behavioral and physiological contexts, breeds, and age groups. The rhinaria of adult, alert, and comfortable dogs are colder than ambient temperature from 30 °C... (More)
Many mammals have specialized nose-tips with glabrous and often wet skin, called rhinaria. The function of the rhinarium is unknown in most species. Rhinaria differ not only in shape and skin structure, but also in skin temperature. They are considerably colder in carnivorans than in herbivorous artio- and perissodactyls. Domestic dogs are carnivorans and their noses often feel cold, such that they can be used as an abundant and easily accessible model species. We performed a study on rhinarium temperature in dogs under various ambient temperatures as well as in different behavioral and physiological contexts, breeds, and age groups. The rhinaria of adult, alert, and comfortable dogs are colder than ambient temperature from 30 °C (approximately 5 °C colder) down to a break point at about 15 °C. At an ambient temperature of 0 °C, rhinarium temperature is approximately 8 °C and the decrease in skin surface temperature with decreasing ambient temperature has not yet leveled off. The dog rhinarium warms up under a number of circumstances. In contrast to the continuously warm rhinaria of herbivores, our results suggest strongly that the cold state is the operating state of the dog rhinarium.
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- author
- Kröger, Ronald Heinz Herbert LU and Goiricelaya, Aitor Bereber
- organization
- publishing date
- 2017-12-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Age, Ambient temperature, Behavioral context, Dog, Rhinarium, Temperature dynamics
- in
- Journal of Thermal Biology
- volume
- 70
- pages
- 5 pages
- publisher
- Elsevier
- external identifiers
-
- scopus:85032706345
- pmid:29108553
- wos:000416197500003
- ISSN
- 0306-4565
- DOI
- 10.1016/j.jtherbio.2017.10.013
- language
- English
- LU publication?
- yes
- id
- 1c019dec-417f-496b-b56b-c501f379f9a2
- date added to LUP
- 2017-11-14 12:11:36
- date last changed
- 2024-03-01 03:22:18
@article{1c019dec-417f-496b-b56b-c501f379f9a2,
abstract = {{<p>Many mammals have specialized nose-tips with glabrous and often wet skin, called rhinaria. The function of the rhinarium is unknown in most species. Rhinaria differ not only in shape and skin structure, but also in skin temperature. They are considerably colder in carnivorans than in herbivorous artio- and perissodactyls. Domestic dogs are carnivorans and their noses often feel cold, such that they can be used as an abundant and easily accessible model species. We performed a study on rhinarium temperature in dogs under various ambient temperatures as well as in different behavioral and physiological contexts, breeds, and age groups. The rhinaria of adult, alert, and comfortable dogs are colder than ambient temperature from 30 °C (approximately 5 °C colder) down to a break point at about 15 °C. At an ambient temperature of 0 °C, rhinarium temperature is approximately 8 °C and the decrease in skin surface temperature with decreasing ambient temperature has not yet leveled off. The dog rhinarium warms up under a number of circumstances. In contrast to the continuously warm rhinaria of herbivores, our results suggest strongly that the cold state is the operating state of the dog rhinarium.</p>}},
author = {{Kröger, Ronald Heinz Herbert and Goiricelaya, Aitor Bereber}},
issn = {{0306-4565}},
keywords = {{Age; Ambient temperature; Behavioral context; Dog; Rhinarium; Temperature dynamics}},
language = {{eng}},
month = {{12}},
pages = {{15--19}},
publisher = {{Elsevier}},
series = {{Journal of Thermal Biology}},
title = {{Rhinarium temperature dynamics in domestic dogs}},
url = {{http://dx.doi.org/10.1016/j.jtherbio.2017.10.013}},
doi = {{10.1016/j.jtherbio.2017.10.013}},
volume = {{70}},
year = {{2017}},
}