Energetics and water economy of common spiny mice Acomys cahirinus from north- and south-facing slopes of a Mediterranean valley

M Scantlebury, U Shanas, J R Speakman, H Kupshtein, D Afik, A Haim

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

1. A comparison was made of the daily energy expenditure (DEE), resting metabolic rate (RMR) and water turnover (WTO) of two populations of Common Spiny Mice Acomys cahirinus from north- and south-facing slopes (NFS and SFS) of the same valley, which represented 'Mediterranean' and 'desert' habitats, respectively.

2. An examination was made as to whether these physiological characteristics differed between mice that had been in the laboratory (outdoor conditions) for 2 months compared with mice captured from the field.

3. Mice from the field had greater RMR values than mice in the laboratory and NFS mice had greater RMR values than SFS mice. In the field, NFS individuals had greater DEE values than SFS individuals. Mass-specific RMR values of SFS mice were 20% less than the allometrically predicted value, whereas those of NFS were not. WTO and sustained metabolic scope (DEE/RMR) were lower in the field than in the laboratory.

4. The results indicate that physiological capabilities are phenotypically plastic, as differences exist between the field and laboratory and between NFS and SFS mice. Furthermore, they highlight the importance of using field studies for understanding the link between energetics and physiological adjustment to environmental conditions.

Original languageEnglish
Pages (from-to)178-185
Number of pages8
JournalFunctional Ecology
Volume17
Publication statusPublished - 2003

Keywords

  • daily energy expenditure
  • doubly labelled water
  • ecological physiology
  • evolution
  • resting metabolic rate
  • BASAL METABOLIC-RATE
  • DAILY ENERGY-EXPENDITURE
  • MALE WOOD MICE
  • BODY-TEMPERATURE
  • DAILY RHYTHMS
  • NONSHIVERING THERMOGENESIS
  • APODEMUS-SYLVATICUS
  • OXYGEN-CONSUMPTION
  • DIFFERENT HABITATS
  • EVOLUTION-CANYON

Cite this

Energetics and water economy of common spiny mice Acomys cahirinus from north- and south-facing slopes of a Mediterranean valley. / Scantlebury, M ; Shanas, U ; Speakman, J R ; Kupshtein, H ; Afik, D ; Haim, A .

In: Functional Ecology, Vol. 17, 2003, p. 178-185.

Research output: Contribution to journalArticle

@article{3d8b4dba6edd46e09f4e096f0b24180b,
title = "Energetics and water economy of common spiny mice Acomys cahirinus from north- and south-facing slopes of a Mediterranean valley",
abstract = "1. A comparison was made of the daily energy expenditure (DEE), resting metabolic rate (RMR) and water turnover (WTO) of two populations of Common Spiny Mice Acomys cahirinus from north- and south-facing slopes (NFS and SFS) of the same valley, which represented 'Mediterranean' and 'desert' habitats, respectively.2. An examination was made as to whether these physiological characteristics differed between mice that had been in the laboratory (outdoor conditions) for 2 months compared with mice captured from the field.3. Mice from the field had greater RMR values than mice in the laboratory and NFS mice had greater RMR values than SFS mice. In the field, NFS individuals had greater DEE values than SFS individuals. Mass-specific RMR values of SFS mice were 20{\%} less than the allometrically predicted value, whereas those of NFS were not. WTO and sustained metabolic scope (DEE/RMR) were lower in the field than in the laboratory.4. The results indicate that physiological capabilities are phenotypically plastic, as differences exist between the field and laboratory and between NFS and SFS mice. Furthermore, they highlight the importance of using field studies for understanding the link between energetics and physiological adjustment to environmental conditions.",
keywords = "daily energy expenditure, doubly labelled water, ecological physiology, evolution, resting metabolic rate, BASAL METABOLIC-RATE, DAILY ENERGY-EXPENDITURE, MALE WOOD MICE, BODY-TEMPERATURE, DAILY RHYTHMS, NONSHIVERING THERMOGENESIS, APODEMUS-SYLVATICUS, OXYGEN-CONSUMPTION, DIFFERENT HABITATS, EVOLUTION-CANYON",
author = "M Scantlebury and U Shanas and Speakman, {J R} and H Kupshtein and D Afik and A Haim",
year = "2003",
language = "English",
volume = "17",
pages = "178--185",
journal = "Functional Ecology",
issn = "0269-8463",
publisher = "Blackwell Publishing Limited",

}

TY - JOUR

T1 - Energetics and water economy of common spiny mice Acomys cahirinus from north- and south-facing slopes of a Mediterranean valley

AU - Scantlebury, M

AU - Shanas, U

AU - Speakman, J R

AU - Kupshtein, H

AU - Afik, D

AU - Haim, A

PY - 2003

Y1 - 2003

N2 - 1. A comparison was made of the daily energy expenditure (DEE), resting metabolic rate (RMR) and water turnover (WTO) of two populations of Common Spiny Mice Acomys cahirinus from north- and south-facing slopes (NFS and SFS) of the same valley, which represented 'Mediterranean' and 'desert' habitats, respectively.2. An examination was made as to whether these physiological characteristics differed between mice that had been in the laboratory (outdoor conditions) for 2 months compared with mice captured from the field.3. Mice from the field had greater RMR values than mice in the laboratory and NFS mice had greater RMR values than SFS mice. In the field, NFS individuals had greater DEE values than SFS individuals. Mass-specific RMR values of SFS mice were 20% less than the allometrically predicted value, whereas those of NFS were not. WTO and sustained metabolic scope (DEE/RMR) were lower in the field than in the laboratory.4. The results indicate that physiological capabilities are phenotypically plastic, as differences exist between the field and laboratory and between NFS and SFS mice. Furthermore, they highlight the importance of using field studies for understanding the link between energetics and physiological adjustment to environmental conditions.

AB - 1. A comparison was made of the daily energy expenditure (DEE), resting metabolic rate (RMR) and water turnover (WTO) of two populations of Common Spiny Mice Acomys cahirinus from north- and south-facing slopes (NFS and SFS) of the same valley, which represented 'Mediterranean' and 'desert' habitats, respectively.2. An examination was made as to whether these physiological characteristics differed between mice that had been in the laboratory (outdoor conditions) for 2 months compared with mice captured from the field.3. Mice from the field had greater RMR values than mice in the laboratory and NFS mice had greater RMR values than SFS mice. In the field, NFS individuals had greater DEE values than SFS individuals. Mass-specific RMR values of SFS mice were 20% less than the allometrically predicted value, whereas those of NFS were not. WTO and sustained metabolic scope (DEE/RMR) were lower in the field than in the laboratory.4. The results indicate that physiological capabilities are phenotypically plastic, as differences exist between the field and laboratory and between NFS and SFS mice. Furthermore, they highlight the importance of using field studies for understanding the link between energetics and physiological adjustment to environmental conditions.

KW - daily energy expenditure

KW - doubly labelled water

KW - ecological physiology

KW - evolution

KW - resting metabolic rate

KW - BASAL METABOLIC-RATE

KW - DAILY ENERGY-EXPENDITURE

KW - MALE WOOD MICE

KW - BODY-TEMPERATURE

KW - DAILY RHYTHMS

KW - NONSHIVERING THERMOGENESIS

KW - APODEMUS-SYLVATICUS

KW - OXYGEN-CONSUMPTION

KW - DIFFERENT HABITATS

KW - EVOLUTION-CANYON

M3 - Article

VL - 17

SP - 178

EP - 185

JO - Functional Ecology

JF - Functional Ecology

SN - 0269-8463

ER -