Daily energetics of the Black-capped Chickadee,Parus atricapillus, in winter

  title={Daily energetics of the Black-capped Chickadee,Parus atricapillus, in winter},
  author={Susan Budd Chaplin},
  journal={Journal of comparative physiology},
  • S. B. Chaplin
  • Published 1 December 1974
  • Biology
  • Journal of comparative physiology
SummaryThe Black-capped Chickadee,Parus atricapillus, is a year-round resident of deciduous forests near Ithaca, New York. Chickadees are confronted with high nightly energetic demands, due to their small size (10–12 g) and the subfreezing winter temperatures, which must be met by an adequate energy reserve. The fat stores of Chickadees on midwinter evenings provide slightly more energy then expended overnight, as based on metabolic measurements made in the laboratory.The Chickadee has a much… 
Daily variation in markers of nutritional condition in wintering Black-capped Chickadees Poecile atricapillus
The results suggest that these markers can be used as indicators of energy turnover in resident wintering passerines, suggesting higher fat catabolism and fattening rates in mid-winter.
Evidence of facultative daytime hypothermia in a small passerine wintering at northern latitudes
It was found that Tb of individual birds was lower when captured at low Ta, reaching values as low as 35.5 °C in actively foraging individuals, and daytime hypothermia does not result from individuals being unable to maintain Tb during cold spells or to a lack of body reserves.
Forest fragmentation and body condition in wintering black-capped chickadees
This work investigated whether forest cover affects body condition in a population of black-capped chickadees (Poecile atricapillus (L., 1766)) during winter, and measured residual body mass, fat score, and rate of growth of induced feathers to assess body condition.
Seasonal acclimatization to temperature in cardueline finches
  • W. Dawson, C. Carey
  • Environmental Science, Biology
    Journal of comparative physiology
  • 2004
Metabolic rather than insulative adjustments appear primarily responsible for the acclimatization of American goldfinches and pine siskins to winter conditions in the northern United States.
Circannual rhythm of resting metabolic rate of a small Afrotropical bird.
Seasonality in daily body mass variation in a hoarding boreal passerine
The results suggest that willow tits at high latitudes manage increasing energy demands on a short-term basis and respond flexibly to changing conditions by adjusting foraging efficiency and especially night-time energy expenditure.
Seasonal acclimatization to temperature in monk parakeets
Winter FMR as a fraction of summer FMR is inversely, related to body mass (Mb) by the equation; winter FMR/summer FMR=1.49 Mb-0.077 where Mb is in grams, while for large birds the converse is true.
Interspecific variation of thermoregulation between small migratory and resident passerines in Wenzhou.
The yellowbilled grosbeak had relatively high Tb and BMR, a low lower critical temperature and thermal conductance, and a metabolic rate that was relatively insensitive to variation in Ta; all of which are typical of cold adapted species and explain its broader geographic distribution.
Seasonality of Food Use and Caching in New Zealand Robins (Petroica Australis)
In robins, food is opportunistically cached, mainly as a competitive response to excess food, and food was cached in the season in which retrieval would be least necessary.


The Adaptive Role of Winter Fattening in the White-Crowned Sparrow with Comments on its Regulation
It appears at least equally plausible that the low environmental temperature of winter must be regarded as the primary ultimate factor in winter fattening, and the proximate factor, or battery of proximate factors, involved in the physiological regulation of fat storage in winter remain an open question.
Winter Fattening in the Bullfinch
  • I. Newton
  • Environmental Science
    Physiological Zoology
  • 1969
The adaptive significance of winter fattening in the Bullfinch Pyrrhula pyrrhula nesa (L.) is assessed by analyses of the weights and body composition of 134 individuals caught in Wytham Woods, near Oxford, England, between mid-October, 1966, and mid-January, 1967, from a resident population whose ecology had been studied since 1961.
Effect of Temperature and Exercise on Energy Intake and Body Weight of the White-Throated Sparrow Zonotrichia albicollis
This project was later expanded, in view of the studies of Hart and his colleagues with small mammals, to determine in birds the energy cost of a standard amount of exercise at various times of the migratory period.
0 DUM et al. (1961) divided migratory populations of small birds into three groups based upon patterns of fat deposition and migration: “1) short-range migrants that become moderately obese but begin
Physiological responses of the giant hummingbird, Patagona gigas.
Shivering and Heat Production in Wild Birds
  • G. C. West
  • Biology, Environmental Science
    Physiological Zoology
  • 1965
In winter in the north during the daylight hours, birds move about in search of food and general muscular activity produces sufficient heat to maintain body temperature, but at times of inactivity during the day or especially at night when birds are inactive, increased muscle tone and shivering appear to be the only methods available for producing heat.
Use of the Pauling oxygen analyzer for measurement of oxygen consumption of animals in open-circuit systems and in a short-lag, closed-circuit apparatus.
A basic formulation of methods of obtaining oxygen consumption data from measurements of oxygen partial pressure in open and closed-circuit systems is made. For open-circuit systems used in the ste...
A Study of Autumnal Postmigrant Weights and Vernal Fattening of North American Migrants in the Tropics
XLTHOUGH there have been several papers dealing with vernal arrival weights and autumnal fattening of trans-Gulf migrants in the United States, virtually nothing has been published concerning these