Intraindividual seasonal decline of egg-volume in Common Tern Sterna hirundo

• Autorzy: Gonzalez-Solis J , Becker P.H. , Jover L. , Ruiz X.

Warianty tytułu

PL

Spadek wielkosci znoszonych jaj jako cecha osobnicza u rybitwy rzecznej

• Języki publikacji: EN

Abstrakty

EN

The seasonal decline in egg-volume on the basis of the individual changes in 35 known-age female Common Terns Sterna hirundo was studied with data available for 3-6 years. Interindividual differences were significant for both laying dates and egg-volume. Thus, to examine whether the decline was an effect of an assortment of females with the timing of breeding according to their individual egg-volume, the individual values of laying date were correlated with egg-volume. Correlation was not significant, suggesting that seasonal decline in egg-volume was not due to interindividual differences. Instead, egg- volume showed a gradual decrease with the progress of the season at intraindividual level i.e. the later an individual female laid in the season the smaller was the egg-volume. Moreover, the seasonal decline in egg-volume was not due to a simultaneous increase in egg-volume with an advancement of the timing of breeding with age, since the rate of seasonal decrease in egg- volume was similar for young and old birds. Individual average of laying date accounted for 22% of the individual average of fledgling production whereas egg-volume was not significantly correlated with fledging production. Thus, it is suggested that seasonal decline in egg-volume is a non-adaptive consequence of physiological effect of condition on both timing of breeding and egg-volume.

PL

Badania prowadzono na niemieckim wybrzeżu Morza Północnego, w kolonii rybitw na sztucznych wysepkach w Wilhemshaven. Materiał pracy stanowią dane o zniesieniach 35 samic o znanym wieku, obejmujące dla każdej samicy okres 3-6 lat. Stwierdzono istotne różnice międzyosobnicze zarówno co do daty zniesienia, jak też wielkości jaj. Porównanie terminu lęgu z wielkością jaj poszczególnych osobników nie wykazało istotnej korelacji. Wskazuje to, że spadek wielkości jaj w ciągu sezonu nie był prawidłowością międzyosobniczą, a miał charakter osobniczy. Nie zaznaczyła się tu też zależność od wieku samicy (Fig. 1) — stopień zmniejszania się wielkości jaj w ciągu sezonu był podobny u samic młodych (poniżej 6 lat) i starych (powyżej 9 lat). Wielkość jaj nie była też skorelowana z produkcją piskląt. Wskazuje to, że spadek wielkości jaj w ciągu sezonu jest pochodną kondycji poszczególnych samic.

Słowa kluczowe

PL

ptaki; cechy osobnicze; zmiennosc miedzyosobnicza; jaja ptasie; rybitwa rzeczna; Sterna hirundo; ornitologia; wielkosc jaj

• Wydawca: -
• Czasopismo: Acta Ornithologica
• Rocznik: 1999
• Tom: 34
• Numer: 2
• Opis fizyczny: s.185-190, rys.,bibliogr.

Twórcy

autor

Gonzalez-Solis J

• Univ.de Barcelona, Av Diagonal 645, Barcelona-08028, Spain

autor

Becker P.H.

autor

Jover L.

autor

Ruiz X.

Bibliografia

• Arcese P., Smith J. N. M. 1988. Effects of population density and supplemental food on reproduction in song sparrow. J. Anim. Ecol. 57: 119-136.
• Becker P. H., Finck P. 1985. Witterung und Ernährungssituation als entscheidende Faktoren des Bruterfolgs der Flubseeschwalbe Sterna hirundo. J. Omithol. 126: 393-404.
• Becker P. H., Wendeln H. 1997. A new application for transponders in population ecology of the Common Tern. Condor 99: 534-538.
• Birkhead T. R., Nettleship D. N. 1982. The adaptative significance of egg size and laying date in Thick-billed Murres Uria lomvia. Ecology 63: 300-306.
• Bollinger P. B. 1994. Relative effects of hatching order, egg-size variation, parental quality on chick survival in common terns. Auk 111: 263-273.
• Bolton M. 1991. Determinants of chick survival in the Lesser-Black- backed Gull: relative contributions of egg size and parental quality. J. Anim. Ecol. 60: 949-960.
• Bolton M., Houston D. C., Monaghan P. 1992. Nutritional constraints on egg formation in the Lesser Black-backed Gull: an experimental study. J. Anim. Ecol. 61: 521-532.
• Daan S., Dijkstra C., Drent R. H., Meijer T. 1989. Food supply and timing of avian reproduction. Int. Omithol. Cong. Proc. 19: 392-407.
• Davies N. B., Lundberg A. 1985. The influence of food on the time budgets and timing of breeding of the dunnock (Prunella modularis). Ibis 127: 100-110.
• de Forest L. N., Gaston A. J. 1996. The effect of age on timing of breeding and reproductive success in the Thick-billed Murre. Ecology 77: 1501-1511.
• Feldman H. A. 1988. Families of lines: random effects in linear regression analysis. J. Appl. Physiol. 64: 1721-1732.
• González-Solís J., Becker P. H., Wendeln H. 1999a. Mate fidelity and arrival asynchrony in common terns Sterna hirundo. Anim. Behav. 58 1123-1129.
• González-Solís J., Wendeln H., Becker P. H. 1999b. Nest-site turnover in Common Terns: possible problems with renest studies. Ibis 141: 500-502.
• González-Solís J., Wendeln H., Becker P. H. 1999c. Within and between nest-site and mate fidelity in common terns Sterna hirundo. J. Ornithol. 140: 491-498.
• Harris M. P. 1964. Aspects of the breeding biology of the gulls Larus argentatus, L.fuscus and L. marinus. Ibis 106: 432-456.
• Harris M. P., Halley D. J., Wanless S. 1992. The post-fledging survival of young Guillemots Uria aalge in relation to hatching date and growth. Ibis 134: 335-339.
• Hiom L., Bolton M., Monaghan P., Worrall D. 1991. Experimental evidence for food limitation of egg production in gulls. Ornis Scand. 22: 94-97.
• Hipfner J. M., Gaston A. J., de Forest L. N. 1997. The role of female age in determining egg size and laying date of Thick-billed Murres. J. Avian Biol. 28: 271-278.
• Laird N. M., Ware J. H. 1982. Random-effects models for longitudinal data. Biometrics 38: 963-974.
• Meathrel C. E., Bradley J. S., Wooller R. D., Skira I. J. 1993. The effect of parental condition on egg-size and reproductive success in short-tailed shearwaters Puffinus tenuirostris. Oecologia 93: 162-164.
• Meijer T., Daan S., Hall M. 1990. Family planning in the kestrel (Falco tinnunculus): the proximate control of covariation of laying date and clutch size. Behaviour 114: 117-136.
• Mills J. A. 1979. Factors affecting the egg size of Red-billed Gulls (Larus novahoellandiae scopulinus). Ibis 121: 53-67.
• Mills J. A. 1989. Red-billed Gull. In: Newton I. (ed.). Lifetime reproduction in birds. 23th ed. Academic Press, London, pp. 387-404.
• Moreno J. 1998. The determination of seasonal declines in breeding success in seabirds. Etologia 6: 17-31.
• Nager R. G., Rüegger C., van Noordwijk A. J. 1997. Nutrient or energy limitations on egg formation: a feeding experiment in Great Tits. J. Anim. Ecol. 66: 495-507.
• Nisbet I. C. T. 1978. Dependence of fledging success on egg-size, parental performance and egg-composition among Common and Roseate Terns, Sterna hirundo and S. dougallii. Ibis 120: 207-215.
• Nisbet I. C. T., Winchell J. M., Heise A. E. 1984. Influence of age on the breeding biology of Common Terns. Col. Water. 7: 117-126.
• Parsons J. 1976. Factors determining the number and size of eggs laid by the Herring Gull. Condor 78: 481-492.
• Reid W. V., Boersma P. D. 1990. Parental quality and selection on egg size in the Magellanic Penguin. Evolution 44: 1780-1786.
• Rowe L., Ludwig D., Schluter D. 1994. Time, condition and seasonal decline of avian clutch size. Am. Nat. 143: 698-722.
• Spear L., Nur N. 1994. Brood size, hatching order and hatching date: effects on four life-history stages from hatching to recruitment in western gulls. J. Anim. Ecol. 63: 283-298.
• Sydeman W. J., Emslie S. D. 1992. Effects of parental age on hatching asynchrony, egg size and third-chick disadvantage in Western Gulls. Auk 109: 242-248.
• Wendeln H., Becker P. H. 1998. Populationbiologische Untersuchungen an einer Kolonie der Flubseeschwalbe (Sterna hirundo). Vogelwelt 119: 209-213.
• Williams T. D. 1994. Intraspecific variation in egg size and egg composition in birds: effects on offspring fitness. Biol. Rev. 68: 35-59.
• Winkler D. W., Allen P. E. 1996. The seasonal decline in Tree Swallow clutch size: physiological constraint or strategic adjustment. Ecology 77: 922-932.