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Avian daily foraging patterns: Effects of digestive constraints and variability

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Summary

Birds show a typical daily pattern of heavy morning and secondary afternoon feeding. We investigate the pattern of foraging by a bird that results in the lowest long-term rate of mortality. We assume the following: mortality is the sum of starvation and predation. The bird is characterized by two state variables, its energy reserves and the amount of food in its stomach. Starvation occurs during the day if the bird's reserves fall to zero. The bird starves during the night if the total energy stored in reserves and the stomach is less than a critical amount. The probability that the bird is killed by a predator is higher if the bird is foraging than if it is resting. Furthermore, the predation risk while foraging increases with the bird's mass. From these assumptions, we use dynamic programming techniques to find the daily foraging routine that minimizes mortality. The principal results are (1) Variability in food finding leads to routines with feeding concentrated early in the day, (2) digestive constraints cause feeding to be spread more evenly through the day, (3) even under fairly severe digestive constraints, the stomach is generally not full and (4) optimal fat reserve levels are higher in more variable environments and under digestive constraints. This model suggests that the characteristic daily feeding pattern of small birds is not due to digestive constraints but is greatly influenced by environmental variability.

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References

  • Aschoff, J. (1966) Circadian activity pattern with two peaks.Ecology,47, 657–62.

    Google Scholar 

  • Avery, M.I. and Krebs, J.R. (1984) Temperature and foraging success of great titsParus major hunting for spiders.Ibis,126, 33–8.

    Google Scholar 

  • Baldwin, S.P. and Kendeigh, S.C. (1938) Variations in the weight of birds.Auk,55, 416–67.

    Google Scholar 

  • Bartleson, F.D., Jr and Jensen, O.F. (1955) A study of purple finch winter weights.Wilson Bull.,67, 55–9.

    Google Scholar 

  • Bednekoff, P.A. and Krebs, J.R. (1993) Great tit fat reserves: effects of changing and variable feeding day length.Behav. Ecol.

  • Biebach, H. (1977) Das Winterfett der Amsel (Turdus merula).Journal für Ornithologie,118, 117–33.

    Google Scholar 

  • Blem, C.R. (1976) Patterns of lipid storage and utilization in birds.Amer. Zool.,16, 671–84.

    Google Scholar 

  • Blem, C.R. (1990) Avian energy storage. InCurrent Ornithology (D. M. Power ed.), pp. 59–113. Plenum Press, New York, NY, USA.

    Google Scholar 

  • Blem, C.R. and Pagels, J.F. (1984) Midwinter lipid reserves of the golden-crowned kinglet.Condor,86, 491–2.

    Google Scholar 

  • Blyumental, T.I. and Dol'nik, V.R. (1962) The evaluation of energy reserve indices in birds under field conditions.Ornitologiya,4, 394–407.

    Google Scholar 

  • Booth, D.A., Toates, F.M. and Platt, S.V. (1976) Control system for hunger and its implications in animals and man. InHunger: Basic Mechanisms and Clinical Implications (D. Novin, W. Wyrwicka and G. Bray, eds.), pp. 127–48. Raven Press, New York, NY, USA.

    Google Scholar 

  • Castro, G., Stoyan, N. and Myers, J. P. (1989) Assimilation efficiency in birds: a function of taxon or food type.Comp. Biochem. Physiol.,92A, 271–8.

    Google Scholar 

  • Collins, B.G., Cary, G. and Packard, G. (1980) Energy assimilation, expenditure and storage by the brown honeyeater,Lichmera indistincta.J. Comp. Physiol.,137, 157–63.

    Google Scholar 

  • Collins, B.G. and Clow, H. (1978) Feeding behaviour and energetics of the western spinebill,Acanthorhynchus superciliosis (Aves: Meliphagidae).Aust. J. Zool.,26, 269–77.

    Google Scholar 

  • Collins, B.G. and Morellini, P.C. (1979) The influence of nectar concentration and time of day upon energy intake and expenditure by the singing honeyeater,Meliphaga virescens.Physiol. Zool.,52, 165–75.

    Google Scholar 

  • Diamond, J.M., Karasov, W.H., Phan, D. and Carpenter, F.L. (1986) Digestive physiology is a determinant of foraging bout frequency in hummingbirds.Nature,320, 62–3.

    Google Scholar 

  • Ekman, J.B. and Lilliendahl, K. (1993) Using priority to food; fattening strategies in dominance-structured willow titParus montanus flocks.Behav. Ecol.,4, 232–8.

    Google Scholar 

  • Gosler, A. (1987) Some aspects of bill morphology in relation to ecology in the great titParus major. DPhil Thesis, Oxford University, UK.

    Google Scholar 

  • Haftorn, S. (1989) Seasonal and diurnal body weight variation in titmice, based on analyses of individual birds.Wilson Bull.,101, 217–35.

    Google Scholar 

  • Hainsworth, F.R. (1989) Evaluation of models of crop emptying in hummingbirds.Auk,106, 724–5.

    Google Scholar 

  • Halttunen, E., Helle, P. and Kauppinen, V. (1974) TalitiasenParus major talvioainasta keski-suomessa (On the winter body weight of the great tit in central Finland).Lintumies,9, 33–9.

    Google Scholar 

  • Hedenström, A. (1992) Flight performance in relation to fuel load in birds.J. Theor. Biol.,158, 535–7.

    Google Scholar 

  • Hildén, O. (1977) Talinusen painonvähennyksestä yön aikana.Ornis Fenn.,54, 135–7.

    Google Scholar 

  • Hopkins, A. (1966) The pattern of gastric emptying: a new view of old results.J. Phys.,182, 144–9.

    Google Scholar 

  • Houston, A.I., Clark, C.W., McNamara, J.M. and Mangel, M. (1988) Dynamic models in behavioural and evolutionary ecology.Nature,332, 29–34.

    Google Scholar 

  • Houston, A.I. and McNamara, J.M. (1988) A framework for the functional analysis of behaviour.Behav. Brain Sci.,11, 117–63.

    Google Scholar 

  • Jenni, L. and Jenni-Eiermann, S. (1987) Body weight and energy reserves of bramblings in winter.Ardea,75, 271–84.

    Google Scholar 

  • Johnston, D.W. (1970) Caloric density of avian adipose tissue.Comp. Biochem. Physiol.,34, 827–32.

    Google Scholar 

  • Kendeigh, S.C., Dol'nik, V.R. and Gavrilov, V.M. (1977) Avian energetics. InGranivorous Birds in Ecosystems (J. Pinowski and S.C. Kendeigh, eds.), pp. 127–58. Cambridge University Press, Cambridge, UK.

    Google Scholar 

  • Kendeigh, S.C., Kontogiannis, J.E., Mazac, A. and Roth, R.R. (1969) Environmental regulation of food intake by birds.Comp. Biochem. Physiol.,31, 941–57.

    Google Scholar 

  • Kenward, R.E. (1978) Hawks and doves: factors affecting success and selection in goshawk attacks on woodpigeons.J. Anim. Ecol.,47, 449–60.

    Google Scholar 

  • Kenward, R.E. and Sibly, R.M. (1977) A woodpigeon (Columba palumbus) feeding preference explained by a digestive bottleneck.J. Appl. Ecol.,14, 815–26.

    Google Scholar 

  • Kontogiannis, J.E. (1967) Day and night changes in body weight of the white-throated sparrow (Zonotrichia albicollis).Auk,84, 390–5.

    Google Scholar 

  • Lawrence, L. (1958) On regional movements and body weight of black-capped chickadees in winter.Auk,75, 415–43.

    Google Scholar 

  • Lees, J. (1949) Weights of robins — part 2: juveniles and adults.Ibis,91, 287–99.

    Google Scholar 

  • Lehikoinen, E. (1986) Winter ecology of passerines: significances of weight and size.Rep. Dept. Biol. Univ. Turku,14, 1–35.

    Google Scholar 

  • Lehikoinen, E. (1987) Seasonality of the daily weight cycle in wintering passerines and its consequences.Ornis Scan.,18, 216–26.

    Google Scholar 

  • Mangel, M. and Clark, C.W. (1988)Dynamic Modeling in Behavioral Ecology. Princeton University Press, Princeton, NJ, USA.

    Google Scholar 

  • McNamara, J.M. and Houston, A.I. (1986) The common currency for behavioral decisions.Am. Nat.,127, 358–78.

    Google Scholar 

  • McNamara, J.M., Houston, A.I. and Krebs, J.R. (1990) Why hoard? the economics of food-storing in tits,Parus spp.Behav. Ecol.,1, 12–23.

    Google Scholar 

  • McNamara, J.M., Houston, A.I. and Lima, S.L. (submitted) Foraging routines of small birds in winter: a theoretical investigation.Ornis Scandinavica.

  • Morton, M.L. (1967) Diurnal feeding patterns in white-crowned sparrows,Zonotrichia lencophrys gambelii.Condor,69, 491–512.

    Google Scholar 

  • Newton, I. (1969) Winter fattening in the bullfinch.Physiol. Zool.,42, 96–107.

    Google Scholar 

  • Nice, M.M. (1938) The biological significance of bird weights.Bird-Banding,9, 1–11.

    Google Scholar 

  • Odum, E.P. (1949) Weight variations in wintering white-throated sparrows in relation to temperature and migration.Wilson Bull.,61, 3–14.

    Google Scholar 

  • Owen, D.F. (1954) The winter weights of titmice.Ibis,96, 299–309.

    Google Scholar 

  • Partin, J.L. (1933) A year's study of house finch weights.Condor,35, 60–3.

    Google Scholar 

  • Powers, D.R. (1991) Diurnal variation in mass, metabolic rate, and respiratory quotient in anna's and costa's hummingbirds.Physiol. Zool.,64, 850–70.

    Google Scholar 

  • Pullianen, E. (1980) Mid-winter feeding activity of Siberian titsParus cinctus and a great titParus major at a feeding site north of the arctic circle.Ornis Fenn.,57, 90–2.

    Google Scholar 

  • Rijndorp, A., Daan, S. and Dijkstra, C. (1981) Hunting in the kestrel,Falco tinnunculus, and the adaptive significance of its daily habits.Oecologia,50, 391–406.

    Google Scholar 

  • Rogers, C.M. (1987) Predation risk and fasting capacity: do wintering birds maintain optimal body mass?Ecology,68, 1051–61.

    Google Scholar 

  • Saariko, J. and Hanski, I. (1990) Timing of rest and sleep in foraging shrews.Anim. Behav.,40, 861–9.

    Google Scholar 

  • Stevenson, J. (1933) Experiments on the digestion of food by birds.Wilson Bull.,45, 155–67.

    Google Scholar 

  • Stubbs, D.F. (1977) Models of gastric emptying.Gut,18, 202–7.

    Google Scholar 

  • Ward, P. (1978) The role of the crop among red-billed queleasQuelea quelea.Ibis,120, 333–7.

    Google Scholar 

  • Westoby, M. (1974) An analysis of diet selection by large generalist herbivores.Am. Nat.,108, 290–304.

    Google Scholar 

  • Wheeler, T.G. (1980) Experiments in feeding behavior of the anna hummingbird.Wilson Bull.,92, 53–62.

    Google Scholar 

  • White, C.M. and West, G.C. (1977) The annual lipid cycle and feeding behavior of Alaskan redpolls.Oecologia,27, 227–38.

    Google Scholar 

  • Whittow, G.C. (1986) Energy metabolism. InAvian Physiology (P.D. Sturkie, ed.), pp. 253–68. Springer-Verlag, New York, NY, USA.

    Google Scholar 

  • Wiseman, A. J. (1975) Changes in body weight of American goldfinches.Wilson Bull.,87, 390–411.

    Google Scholar 

  • Witter, M.S. and Cuthill, I.C. (1993) The ecological costs of avian fat storage.Phil. Trans. Roy. Soc. Lond. B 340, 73–92.

    Google Scholar 

  • Wolf, L.L. and Hainsworth, F.R. (1977) Temporal patterning of feeding by hummingbirds.Anim. Behav.,25, 976–89.

    Google Scholar 

  • Worthington, A.H. (1989) Adaptations for avian frugivory: assimilation efficiency and gut transit time ofManacus vitellinus andPipra mentalis.Oecologia,80, 381–9.

    Google Scholar 

  • Wyndham, E. (1980) Diurnal changes in crop contents and total body lipids of budgerigarsMelopsittacus undulatus.Ibis,122, 229–34.

    Google Scholar 

  • Zwarts, L. and Blomert, A.-M. (1990) Selectivity of whimbrels feeding on fiddler crabs explained by component specific digestibilities.Ardea,78, 193–208.

    Google Scholar 

  • Zwarts, L. and Dirksen, S. (1990) Digestive bottleneck limits the increase in food intake of whimbrels preparing for spring migration from the Banc d'Arguin, Mauritania.Ardea,78, 257–78.

    Google Scholar 

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Authors and Affiliations

  1. Edward Grey Institute, Department of Zoology, University of Oxford, South Parks Road, OX1 3PS, Oxford, UK

    Peter A. Bednekoff

  2. NERC Unit of Behavioural Ecology, Department of Zoology, University of Oxford, South Parks Road, OX1 3PS, Oxford, UK

    Alasdair I. Houston

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  1. Peter A. Bednekoff
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Bednekoff, P.A., Houston, A.I. Avian daily foraging patterns: Effects of digestive constraints and variability. Evol Ecol 8, 36–52 (1994). https://doi.org/10.1007/BF01237664

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