Summary
The pattern of fat deposition and inter-year variation in the amount of deposited fat, lean dry mass (LDM) and water were studied in the chicks of little auk (Alle alle), an arctic alcid, at Spitsbergen in the 1984, 1986 and 1987 breeding seasons. The lipid index (lipid mass/LDM) rose from 0.29 at hatching to about 0.70 at the age of maximum body mass attained in the nest, the highest yet recorded for seabirds except procellariiforms. Just before fledging the index dropped to 0.38. Fat mass in 1984 chicks and also fresh body mass of older 1984 chicks was significantly lower than in the other two seasons, but there were no statistical year-to-year differences in LDM's of chicks. The amount of fat in chicks was significantly correlated with certain weather parameters. Fasting capability (FC) of the chicks (the time that chicks could survive when using only their lipid stores) was calculated from fat mass and previous data on metabolic rates of chicks. The FC's of all 108 chicks collected in three seasons were greater than maximum interval between two consecutive feeds to chicks reported in the study colony. Also the estimated fat reserves of 99.7% of chicks weighed in 1984 were sufficient to support them for longer than the maximum recorded intervals between feeds. In relation to death by starvation, little auk chicks, at least up to the age of maximum body mass, have a substantial surplus of fat. This is contrary to the hypothesis that fat depots in seabird chicks assist survival during the periodic fasts resulting from unpredictable feeding conditions.
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References
Biebach H (1977) Reduktion des Energiestoffwechsels und der Körpertemperatur hungernder Amseln (Turdus merula). J Ornithol 118:294–300
Bradstreet MSW (1982) Pelagic feeding ecology of dovekies, Alle alle, in Lancaster Sound and Western Baffin Bay. Arctic 35:126–140
Brown RGB (1976) The foraging range of breeding dovekies, Alle alle. Can Field-Nat 90:166–168
Bryant DM, Gardiner A (1979) Energetics of growth in house martins (Delichon urbica). J Zool (Lond) 189:275–304
Bryant DM, Hails CJ (1983) Energetics and growth patterns of three tropical bird species. Auk 100:425–439
Byrkjedal I, Alendal E, Lindberg OF (1974) Counts of sea-birds between Norway and Spitsbergen in the summer 1973. Nor Polarinst Arbok 1974, Oslo, pp 265–269
Chaplin SB (1974) Daily energetics of the black-capped chickadee, Paarus atricapillus, in winter. J Comp Physiol 89:321–330
Cherel Y, Robin J-P, Le Maho Y (1988) Physiology and biochemistry of long-term fasting in birds. Can J Zool 66:159–166
Davis RW, Kooyman GL, Croxall JP (1983) Water flux and estimated metabolism of free-ranging gentoo and macaroni penguins at South Georgia. Pol Biol 2:41–46
Drent RH, Daan S (1980) The prudent parent: Energetic adjustments in avian breeding. Ardea 68:225–252
Dunn EH (1975) Growth, body components and energy content of nestling double-crested cormorants. Condor 77:431–438
Evans PR (1969) Ecological aspects of migration, and pre-migratory fat deposition in the lesser redpoll, Carduelis flammea cabaret. Condor 71:316–330
Gaston AJ (1985) Development of the young in the Atlantic Alcidae. In: Birkhead TR, Nettleship DN (eds) The Atlantic Alcidae, Academic Press London, pp 319–354
Jenni L, Jenni-Eiermann S (1987) Body weight and energy reserves of bramblings in winter. Ardea 75:271–284
Koelink AF (1972) Bioenergetics of growth in the pigeon guillemot, Cepphus columba. Unpubl MS thesis. Univ British Columbia, Vancouver, British Columbia
Konarzewski M, Taylor JRE (1989) The influence of weather conditions on growth of the little auk (Alle alle) chicks. Ornis Scand 20:112–116
Lack D (1968) Ecological adaptations for breeding in birds. Methuen, London
Maruyama K, Sunde ML, Swick RW (1978) Growth and muscle protein turnover in the chick. Biochem J 176:573–582
Nagy KA, Costa DP (1980) Water flux in animals: analysis of potential errors in the tritiated water method. Am J Physiol 238:R454-R465
Norderhaug M (1980) Breeding biology of the little auk (Plautus alle) in Svalbard. Norsk Polarinstitutt Skrifter 173, Oslo
O'Connor RJ (1976) Weight and body composition in nestling blue tits Parus caeruleus. Am J Physiol 118:108–112
Ricklefs RE (1973) Patterns of growth in birds. II Growth rate and mode of development. Am J Physiol 115:177–201
Ricklefs RE (1974) Energetics of reproduction in birds. In: Paynter RA (ed) Avian energetics, Publ Nutall Ornithological Club No 15, Cambridge-Massachusetts, pp 152–297
Ricklefs RE (1979) Adaptation, constraint, and compromise in avian postnatal development. Biol Rev 54:269–290
Ricklefs RE, White SC (1981) Growth and energetics of chicks of the sooty tern (Sterna fuscata) and common tern (S. hirundo). Auk 98:361–378
Ricklefs RE, White SC, Cullen J (1980) Energetics of postnatal growth in Leach's storm petrel. Auk 97:566–575
Ricklefs RE, Day CH, Huntington CE, Williams JB (1985) Variability in feeding rate and meal size of Leach's storm-petrel at Kent Island, New Brunswick. J Anim Ecol 54:883–898
Stempniewicz L (1980) Factors influencing the growth of the little auks, Plautus alle (L.), nestlings on Spitsbergen. Ekol Pol 28:557–581
Stempniewicz L (1981) Breeding biology of the little auk Plautus alle in the Hornsund region, Spitsbergen. Acta Ornithol 18:1–26
Stempniewicz L, Jezierski J (1987) Incubation shifts and chick feeding rate in the little auk Alle alle in Svalbard. Ornis Scand 18:152–155
Tatner P (1984) Body component growth and composition of the magpie Pica pica. J Zool (Lond) 203:397–410
Whittow GC (1976) Energy metabolism. In: Sturkie PD (ed), Avian physiology, Springer, Berlin Heidelberg New York
Wishart RA (1979) Indices of structural size and condition of American wigeon (Anas americana). Can J Zool 57:2369–2374
Zar JH (1984) Biostatistical analysis. Prentice-Hall Inc. Englewood Cliffs, New Jersey
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Taylor, J.R.E., Konarzewski, M. On the importance of fat reserves for the little auk (Alle alle) chicks. Oecologia 81, 551–558 (1989). https://doi.org/10.1007/BF00378968
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DOI: https://doi.org/10.1007/BF00378968