Huddling behavior facilitates homeothermy in the naked mole rat Heterocephalus glaber

S. Yahav, R. Buffenstein

Research output: Contribution to journalArticle

54 Citations (Scopus)

Abstract

Naked mole rat is a highly social mammal, living in large underground colonies in equatorial Africa. Isolated naked mole rats exhibit unusual thermoregulation and cannot regulate body temperature (Tb). Thermoregulatory parameters, namely Vo2, evaporative water loss (EWL), and Tb, were therefore examined when these animals were housed in groups ranging from 2-8 animals. Oxygen consumption at low ambient temperatures (Ta's), irrespective of the experimental group size, increased with increasing Ta in a poikilothermic manner. Changes in Vo2 with increasing Ta switched to an endothermic pattern at Ta's ranging from 25°C (for groups of eight) to 27°C (for pairs). Huddling behaviour not only saves energy and water, so essential in an arid environment where food is sparsely distributed, but huddling also plays a very important thermoregulatory role in these otherwise nonendothermic mammals. Huddling ensures that, in their natural habitat, naked mole rats are able to control Tb and are indeed homeotherms. -from Authors

Original languageEnglish (US)
Pages (from-to)871-884
Number of pages14
JournalPhysiological Zoology
Volume64
Issue number3
StatePublished - 1991
Externally publishedYes

Fingerprint

Mole Rats
Heterocephalus glaber
Rats
Mammals
Animals
mammals
Temperature
Water
Body Temperature Regulation
dry environmental conditions
thermoregulation
Body Temperature
group size
Oxygen Consumption
oxygen consumption
body temperature
Ecosystem
ambient temperature
animals
water

ASJC Scopus subject areas

  • Endocrinology

Cite this

Huddling behavior facilitates homeothermy in the naked mole rat Heterocephalus glaber. / Yahav, S.; Buffenstein, R.

In: Physiological Zoology, Vol. 64, No. 3, 1991, p. 871-884.

Research output: Contribution to journalArticle

Yahav, S. ; Buffenstein, R. / Huddling behavior facilitates homeothermy in the naked mole rat Heterocephalus glaber. In: Physiological Zoology. 1991 ; Vol. 64, No. 3. pp. 871-884.
@article{c15f8dbec71449de9128defec167fb99,
title = "Huddling behavior facilitates homeothermy in the naked mole rat Heterocephalus glaber",
abstract = "Naked mole rat is a highly social mammal, living in large underground colonies in equatorial Africa. Isolated naked mole rats exhibit unusual thermoregulation and cannot regulate body temperature (Tb). Thermoregulatory parameters, namely Vo2, evaporative water loss (EWL), and Tb, were therefore examined when these animals were housed in groups ranging from 2-8 animals. Oxygen consumption at low ambient temperatures (Ta's), irrespective of the experimental group size, increased with increasing Ta in a poikilothermic manner. Changes in Vo2 with increasing Ta switched to an endothermic pattern at Ta's ranging from 25°C (for groups of eight) to 27°C (for pairs). Huddling behaviour not only saves energy and water, so essential in an arid environment where food is sparsely distributed, but huddling also plays a very important thermoregulatory role in these otherwise nonendothermic mammals. Huddling ensures that, in their natural habitat, naked mole rats are able to control Tb and are indeed homeotherms. -from Authors",
author = "S. Yahav and R. Buffenstein",
year = "1991",
language = "English (US)",
volume = "64",
pages = "871--884",
journal = "Physiological and Biochemical Zoology",
issn = "1522-2152",
publisher = "University of Chicago",
number = "3",

}

TY - JOUR

T1 - Huddling behavior facilitates homeothermy in the naked mole rat Heterocephalus glaber

AU - Yahav, S.

AU - Buffenstein, R.

PY - 1991

Y1 - 1991

N2 - Naked mole rat is a highly social mammal, living in large underground colonies in equatorial Africa. Isolated naked mole rats exhibit unusual thermoregulation and cannot regulate body temperature (Tb). Thermoregulatory parameters, namely Vo2, evaporative water loss (EWL), and Tb, were therefore examined when these animals were housed in groups ranging from 2-8 animals. Oxygen consumption at low ambient temperatures (Ta's), irrespective of the experimental group size, increased with increasing Ta in a poikilothermic manner. Changes in Vo2 with increasing Ta switched to an endothermic pattern at Ta's ranging from 25°C (for groups of eight) to 27°C (for pairs). Huddling behaviour not only saves energy and water, so essential in an arid environment where food is sparsely distributed, but huddling also plays a very important thermoregulatory role in these otherwise nonendothermic mammals. Huddling ensures that, in their natural habitat, naked mole rats are able to control Tb and are indeed homeotherms. -from Authors

AB - Naked mole rat is a highly social mammal, living in large underground colonies in equatorial Africa. Isolated naked mole rats exhibit unusual thermoregulation and cannot regulate body temperature (Tb). Thermoregulatory parameters, namely Vo2, evaporative water loss (EWL), and Tb, were therefore examined when these animals were housed in groups ranging from 2-8 animals. Oxygen consumption at low ambient temperatures (Ta's), irrespective of the experimental group size, increased with increasing Ta in a poikilothermic manner. Changes in Vo2 with increasing Ta switched to an endothermic pattern at Ta's ranging from 25°C (for groups of eight) to 27°C (for pairs). Huddling behaviour not only saves energy and water, so essential in an arid environment where food is sparsely distributed, but huddling also plays a very important thermoregulatory role in these otherwise nonendothermic mammals. Huddling ensures that, in their natural habitat, naked mole rats are able to control Tb and are indeed homeotherms. -from Authors

UR - http://www.scopus.com/inward/record.url?scp=0026395015&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0026395015&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0026395015

VL - 64

SP - 871

EP - 884

JO - Physiological and Biochemical Zoology

JF - Physiological and Biochemical Zoology

SN - 1522-2152

IS - 3

ER -