ThomasBlondelPerretEtAl2001a

Référence

Thomas, D.W., Blondel, J., Perret, P., Lambrechts, M.M. and Speakman, J.R. (2001) Energetic and fitness costs of mismatching resource supply and demand in seasonally breeding birds. Science, 291(5513):2598-2600.

Résumé

By advancing spring leaf flush and ensuing food availability, climatic warming results in a mismatch between the timing of peak food supply and nestling demand, shifting the optimal time for reproduction in birds. Two populations of blue tits (Parus caeruleus) that breed at different dates in similar, but spatially distinct, habitat types in Corsica and southern France provide a unique opportunity to quantify the energetic and fitness consequences when breeding is mismatched with local productivity. As food supply and demand become progressively mismatched, the increased cost of rearing young pushes the metabolic effort of adults beyond their apparent sustainable limit, drastically reducing the persistence of adults in the breeding population. We provide evidence that the economics of parental foraging and. limits to sustainable metabolic effort are key selective forces underlying synchronized seasonal breeding and long-term shifts in breeding date in response to climatic change.

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@ARTICLE { ThomasBlondelPerretEtAl2001a,
    AUTHOR = { Thomas, D.W. and Blondel, J. and Perret, P. and Lambrechts, M.M. and Speakman, J.R. },
    TITLE = { Energetic and fitness costs of mismatching resource supply and demand in seasonally breeding birds },
    JOURNAL = { Science },
    YEAR = { 2001 },
    VOLUME = { 291 },
    PAGES = { 2598-2600 },
    NUMBER = { 5513 },
    NOTE = { 00368075 (ISSN) Cited By (since 1996): 52 Export Date: 26 April 2007 Source: Scopus CODEN: SCIEA doi: 10.1126/science.1057487 Language of Original Document: English Correspondence Address: Thomas, D.W.; Groupe de Recherche en Ecologie; De?partement de Biologie; Universite? de Sherbrooke Sherbrooke, Que. J1K 2R1, Canada; email: d.thomas@courrier.usherd.ca References: Perrins, C.H., (1970) Ibis, 112, p. 242; Verboven, N., Visser, M.E., (1998) Oikos, 81, p. 511; Visser, M.E., Verboven, N., (1999) Oikos, 85, p. 445; Both, C., Visser, M.E., Verboven, N., (1999) Proc. R. Soc. London Ser. B, 266, p. 465; Van Noordwijk, A.J., McCleery, R.H., Perrins, C.H., (1995) J. Anim. Ecol., 64, p. 451; Visser, M.E., Van Noordwijk, A.J., Tinbergen, J.M., Lessells, C.M., (1998) Proc. R. Soc. London Ser. B, 265, p. 1867; Dias, P.C., Blondel, J., (1996) Ibis, 138, p. 644; (1996) Oecologia, 107, p. 79; Blondel, J., Dias, P.C., Maistre, M., Perret, P., (1993) Auk, 110, p. 511; Lambrechts, M.M., Dias, P.C., (1993) Ibis, 135, p. 451; Lambrechts, M.M., Perret, P., Blondel, J., (1996) Proc. R. Soc. London Ser. B, 263, p. 19; Lambrechts, M.M., Blondel, J., Maistre, M., Perret, P., (1997) Proc. Natl. Acad. Sci. U.S.A., 94, p. 5153; Blondel, J., Perret, P., Maistre, M., Dias, P.C., (1992) Landscape Ecol., 6, p. 213; Blondel, J., Dias, P.C., Perret, P., Maistre, M., Lambrechts, M.M., (1999) Science, 285, p. 1399; note; note; note; Bryant, D., (1997) Proc. Nutr. Soc., 56, p. 1025; Nagy, K.A., (1987) Ecol. Monogr., 57, p. 111; Peterson, C.C., Nagy, K.A., Diamond, J., (1990) Proc. Natl. Acad. Sci. U.S.A., 87, p. 2324; Drent, R.H., Daan, S., (1980) Ardea, 68, p. 225; note; Crick, H.Q.P., Dudley, C., Glue, D.E., Thompson, D.L., (1997) Nature, 388, p. 526; Speakman, J.R., (1997) Doubly-Labelled Water: Theory and Practice, , (Chapman \& Hall, London); note. },
    ABSTRACT = { By advancing spring leaf flush and ensuing food availability, climatic warming results in a mismatch between the timing of peak food supply and nestling demand, shifting the optimal time for reproduction in birds. Two populations of blue tits (Parus caeruleus) that breed at different dates in similar, but spatially distinct, habitat types in Corsica and southern France provide a unique opportunity to quantify the energetic and fitness consequences when breeding is mismatched with local productivity. As food supply and demand become progressively mismatched, the increased cost of rearing young pushes the metabolic effort of adults beyond their apparent sustainable limit, drastically reducing the persistence of adults in the breeding population. We provide evidence that the economics of parental foraging and. limits to sustainable metabolic effort are key selective forces underlying synchronized seasonal breeding and long-term shifts in breeding date in response to climatic change. },
    KEYWORDS = { Food products Global warming Sustainable development Synchronized seasonal breeding Ecosystems bird breeding population climate change energetics fitness food supply reproductive cost bird breeding climate Energy Metabolism Food Nesting Behavior Reproduction France Parus caeruleus },
    OWNER = { brugerolles },
    TIMESTAMP = { 2007.12.05 },
}

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