Apparent absorption efficiency and gut morphometry of wood mice, Apodemus sylvaticus, from two distinct populations with different diets

N Corp, Martyn Lee Gorman, John Roger Speakman

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Interpopulation variation in the diet of the wood mouse, Apodemus sylvaticus, is well documented. In this study, we examined the gut morphology and apparent absorption efficiencies of two populations of wood mice whose diet in the field was known to differ. One population inhabited sand dunes, where food availability was relatively low and the diet was dominated by invertebrates. The other population lived in deciduous woodland, with greater food availability and a diet consisting primarily of seeds. Wood mice from the woodland had longer small intestines and total digestive tract lengths than mice from the sand dunes. However, these differences had no effect on the apparent absorption efficiencies of dry mass or energy when the mice were fed meal-worms. wheat grain, or All-Bran diets (apparent energy absorption efficiencies of 88%, 89%, and 65%, respectively). The population differences in gut morphometry may be linked to different resource availabilities at the two field sites.

Original languageEnglish
Pages (from-to)610-614
Number of pages5
JournalPhysiological and Biochemical Zoology
Volume70
Issue number6
Publication statusPublished - 1997

Keywords

  • microtus-ochrogaster
  • energy-expenditure
  • seasonal-changes
  • quality
  • ecology
  • requirements
  • capacity
  • mammals
  • tract
  • needs

Cite this

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title = "Apparent absorption efficiency and gut morphometry of wood mice, Apodemus sylvaticus, from two distinct populations with different diets",
abstract = "Interpopulation variation in the diet of the wood mouse, Apodemus sylvaticus, is well documented. In this study, we examined the gut morphology and apparent absorption efficiencies of two populations of wood mice whose diet in the field was known to differ. One population inhabited sand dunes, where food availability was relatively low and the diet was dominated by invertebrates. The other population lived in deciduous woodland, with greater food availability and a diet consisting primarily of seeds. Wood mice from the woodland had longer small intestines and total digestive tract lengths than mice from the sand dunes. However, these differences had no effect on the apparent absorption efficiencies of dry mass or energy when the mice were fed meal-worms. wheat grain, or All-Bran diets (apparent energy absorption efficiencies of 88{\%}, 89{\%}, and 65{\%}, respectively). The population differences in gut morphometry may be linked to different resource availabilities at the two field sites.",
keywords = "microtus-ochrogaster, energy-expenditure, seasonal-changes, quality, ecology, requirements, capacity, mammals, tract, needs",
author = "N Corp and Gorman, {Martyn Lee} and Speakman, {John Roger}",
year = "1997",
language = "English",
volume = "70",
pages = "610--614",
journal = "Physiological and Biochemical Zoology",
issn = "1522-2152",
publisher = "UNIV CHICAGO PRESS",
number = "6",

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TY - JOUR

T1 - Apparent absorption efficiency and gut morphometry of wood mice, Apodemus sylvaticus, from two distinct populations with different diets

AU - Corp, N

AU - Gorman, Martyn Lee

AU - Speakman, John Roger

PY - 1997

Y1 - 1997

N2 - Interpopulation variation in the diet of the wood mouse, Apodemus sylvaticus, is well documented. In this study, we examined the gut morphology and apparent absorption efficiencies of two populations of wood mice whose diet in the field was known to differ. One population inhabited sand dunes, where food availability was relatively low and the diet was dominated by invertebrates. The other population lived in deciduous woodland, with greater food availability and a diet consisting primarily of seeds. Wood mice from the woodland had longer small intestines and total digestive tract lengths than mice from the sand dunes. However, these differences had no effect on the apparent absorption efficiencies of dry mass or energy when the mice were fed meal-worms. wheat grain, or All-Bran diets (apparent energy absorption efficiencies of 88%, 89%, and 65%, respectively). The population differences in gut morphometry may be linked to different resource availabilities at the two field sites.

AB - Interpopulation variation in the diet of the wood mouse, Apodemus sylvaticus, is well documented. In this study, we examined the gut morphology and apparent absorption efficiencies of two populations of wood mice whose diet in the field was known to differ. One population inhabited sand dunes, where food availability was relatively low and the diet was dominated by invertebrates. The other population lived in deciduous woodland, with greater food availability and a diet consisting primarily of seeds. Wood mice from the woodland had longer small intestines and total digestive tract lengths than mice from the sand dunes. However, these differences had no effect on the apparent absorption efficiencies of dry mass or energy when the mice were fed meal-worms. wheat grain, or All-Bran diets (apparent energy absorption efficiencies of 88%, 89%, and 65%, respectively). The population differences in gut morphometry may be linked to different resource availabilities at the two field sites.

KW - microtus-ochrogaster

KW - energy-expenditure

KW - seasonal-changes

KW - quality

KW - ecology

KW - requirements

KW - capacity

KW - mammals

KW - tract

KW - needs

M3 - Article

VL - 70

SP - 610

EP - 614

JO - Physiological and Biochemical Zoology

JF - Physiological and Biochemical Zoology

SN - 1522-2152

IS - 6

ER -