The daily energy requirement of the yellow-necked field mouse in different seasons

Gębczyński, Marek

doi:10.4098/at.arch.66-17

Cited by 17 publications

(18 citation statements)

References 3 publications

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“…Models based on BMR and RMR are by far more speculative. Pearson (1948) was first who used the value of daily metabolism rate, afterwards Grodziński (1966) defined ADMR and suggested budgets based on this value, what has been developed in further papers (Gębczyński, 1966;Grodziński & Górecki, 1967).…”

Section: Daily Energy Budget (Deb) Calculated From the Average Daily mentioning

confidence: 99%

Metabolic rate and energy budget in the bank vole

Górecki

1968

Acta Theriol.

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The average daily metabolism rate (ADMR), basal metabolism rate (BMR), and resting metabolism rate (RMR) have been studied during different seasons in the bank vole, Clethrionomys glareolus (S c h r eber, 1780) (N = 140) from southern Poland. ADMR has been determined for diurnal runs in big chambers, while BMR and RMR measurements lasted for 1 -2 hours and were taken in small chambers. ADMR measured at 20° C is highest during summer -0.494 kcal/g/day, and lowest during winter -0.420 kcal/g/day. The intensity of heat production for thermoregulation within the range of actual environmental temperatures is somewhat lower in winter (5.27%/°C) than in summer (6.04°/o/°C). BMR in the thermoneutral zone (30° C) amounts to 2.33 cm 3 of 0 2 /g/hour. During the maximum activity the metabolism increases by 90% in voles. Voles kept in groups, consisting of two to four animals, lowered their daily metabolism rate on an average by 13.3%. During all seasons the activity rhythm had a two-peaks patterns, mainly nocturnal one. Voles are active for the longest time during summer, while for the shortest one -during autumn. ADMR was accepted as a base for the daily energy budget (DEB) in voles. It allowed for heat production for thermoregulation in nest and outside it, amendments for group effect and breeding costs. So calculated DEB expressed in kcal/g/day amounts to 0.486 in winter and 0.556 in summer. The DEB calculated for a vole with mean body weight of 21 g amounts to 10.2 kcal during a winter day and to 10.6 kcal (19 g) during a summer day.

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Section: Daily Energy Budget (Deb) Calculated From the Average Daily mentioning

confidence: 99%

Metabolic rate and energy budget in the bank vole

Górecki

1968

Acta Theriol.

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“…For C. glareolus the maintenance costs were calculated using the data for daily energy budget (DEB) given by Grodziński & Górecki (1967). No such corresponding information is available for A. sylvaticus so data for Apodemus flavicollis (Melchior, 1830) were used instead (Gębczyński, 1966). Multiplication of the DEB by the number of biomass days gives the maintenance costs of the populations which are given in Table 1.…”

Section: Resultsmentioning

confidence: 99%

Energy consumption of small rodent populations in two Irish woodland ecosystems

Smal¹,

Fairley²

1981

Acta Theriol.

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The energy flow through populations of wood mice Apodemus sylvaticus and bank voles Clethrionomys glareolus was studied in an oak Quercus petraea wood and in a yew Taxus baccata wood at Killarney, south-west Ireland, from 1975 to 1977. The energy requirements of the populations were calculated from capture-recapture data using information on metabolic rate, assimilation coefficients and calorific value of body obtained from the literature -data for Apodemus flavicollis was. of necessity, substituted for A.sylvaticus. The proportion energy devoted to production was 2.8 to 3.3% of assimilated energy for mice and 2.3 to 2.5% for voles. The proportion of available, palatable fruit material consumed varied considerably, from 6.5 to 50.8%, depending on the size of crops and on the size of the small mammal populations. Overall, however, it was low: 13% in the yew wood and 12% in the oak wood, averaged over the period of study. The proportion of primary production consumed did not show as much variation, the values ranging from 0.16 to 0.37%; It was concluded that small mammals in woodlands are generally inefficient consumers of fruits because of the dramatic seasonal and annual variations in fruit fall.

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“…2), they are too low since they do not contain energetic growth costs of animals during one day measurements. For the recalculation of oxygen consumption into calories we assumed the coefficient RQ = 0.8, as often used in the ecological literature (Pearson, 1947;Gębczyński, 1966;Grodziński & Górecki, 1968). However, in the animals in which processes of catabolism prevail, as it occurred during our determinations of ADMR, such assumption may also cause a small error leading to the reduction of costs of maintenance.…”

Section: Discussionmentioning

confidence: 99%