Climatic Change

, Volume 57, Issue 3, pp 243–263

Plant Phenological Anomalies in Germany and their Relation to Air Temperature and NAO

  • Annette Menzel
Article

Abstract

This paper analyses long-term (1951–2000) phenological observations of20 plant seasonal phases recorded within the phenological network of the German Weather Service in relation to climate data and NAO. Phenological inter-annual variability and temporal trends were determined by using mean anomaly curves for Germany. For all phases, the mean trends derived by this method are similar to German averages of linear trends of single station records. Trend analysis using anomaly curves appears to be effective in relating seasonal phenological trends to climate or satellite data: Spring and summer phenological anomalies, such as leaf unfolding and flowering of different species, strongly correlate with temperature of the preceding months (R2 between 0.65 and 0.85, best one-variable model) andtheir onsets have advanced by 2.5 to 6.7 days per ° C warmer spring. Fruit ripening of Sambucus nigra and Aesculus hippocastanum, keyphenophases of early and mid autumn, correlate well with summer temperature (R2 0.74 and 0.84) and also advance by 6.5and 3.8 days per ° C (April–June). But the response of autumn colouringto warmer climate is more complex because two opposing factors influence autumn colouring dates. Higher spring and early summer temperatures advance leaf colouring, whereas warmer autumn temperatures delay leaf colouring. The percentage of variance explained by temperature (R2 0.22 to 0.51,best one-variable model) is less than for spring and summer phases. The length of the growing season is mainly increased by warmer springs (R2 0.48to 0.64, best one-variable model) and lengthened by 2.4 to 3.5 days/° C (February–April). The North Atlantic Oscillation Index (NAO) of January–March correlates with spring phenological anomalies(R2 0.37 to 0.56, best one-variable model), summer to mid autumn phases respond to NAO of February–March (R2 0.23 to 0.36) (both negativecorrelations). Leaf colouring is delayed by higher NAO of (August) September (R2 0.10to 0.18). NAO of January–February explains 0.41 to 0.44% of thevariance of the length of the growing season.

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References

  1. Ahas, R.: 1999, ‘Long-Term Phyto-, Ornitho-and Ichthyophenological Time-Series Analyses in Estonia’, International Journal of Biometeorology 42, 119–123.Google Scholar
  2. Beaubien, E. G. and Freeland, H. J.: 2000, ‘Spring Phenology Trends in Alberta, Canada: Links to Ocean Temperature’, International Journal of Biometeorology 44(2), 53–59.Google Scholar
  3. Bradley, N. L., Leopold, A. C., Ross, J., and Huffaker, W.: 1999, ‘Phenological Changes Reflect Climate Change in Wisconsin’, Proc. Nat. Acad. Sci. U.S.A. Ecology 96, 9701–9704.Google Scholar
  4. Cayan, D. R., Kammerdiener, S. A., Dettinger, M. D., Caprio, J. M., and Peterson, D. H.: 2001, ‘Changes in the Onset of Spring in the Western United States’, Bulletin of the American Meteorological Society 82(3), 399–415.Google Scholar
  5. Chmielewski, F. M. and Rötzer, T.: 2000, Phenological Trends in Europe in Relation to Climatic Changes, Agrarmeteorologische Schrift 07 der Humboldt Universität Berlin.Google Scholar
  6. Defila, C. and Clot, B.: 2001, ‘Phytophenological Trends in Switzerland’, International Journal of Biometeorology 45, 203–207.Google Scholar
  7. Estrella, N.: 1999, Trends der forstlichen Vegetationsperiode von 1951-1996 in Deutschland, Diploma Thesis at the Chair of Bioclimatology and Air Pollution Research, Univ. of Munich.Google Scholar
  8. Fitter, A. H., Fitter, R. S. R., Harris, I. T. B., and Williamson, M. H.: 1995 ‘Relationships between First Flowering Data and Temperature in the Flora of a Locality in Central England’, Functional Ecology 9, 55–60.Google Scholar
  9. Forchhammer, M. C., Post, E., and Stenseth, N. C.: 1998, ‘Breeding Phenology and Climate’, Nature 391, 29–30.Google Scholar
  10. Freitag, E.: 1987, Auswirkungen von Klimaänderungen auf den Entwicklungsrhythmus der Pflanzen für historische Zeiträume, Schluβbericht zum BMFT-Förderungsvorhaben KF2008, Deutscher Wetterdienst-Zentralamt, Offenbach a. M.Google Scholar
  11. Gornik, W.: 1994, ‘Untersuchungen zur Problematik der Mittelwertbildung bei phänologischen Datenreihen’, Arboreta Phaenologica 39, 5–10.Google Scholar
  12. Heitland, W. and Freise, J.: 2001, ‘DeVerbreitung der Rosskastanien-Miniermotte’, Cameraria ohridella (Lep., Gracillariidae) in Deutschland. [Distribution of the Horse-Chestnut Leaf-Miner, Cameraria ohridella (Lep., Gracillariidae) in Germany]. Mitt. Dtsch. Ges. Allg. Angew. Ent. 13, 131–134.Google Scholar
  13. Hurrell, J. W.: 1995, ‘Decadal Trends in the North Atlantic Oscillation: Regional Temperatures and Precipitation’, Science 676–679.Google Scholar
  14. IPCC: 2001, Climate Change 2001: Impacts, Adaptation, and Vulnerability, Cambridge University Press.Google Scholar
  15. Jaagus, J. and Ahas, R.: 2000, ‘Space-Time Variations of Climatic Seasons and their Correlation with the Phenological Development of Nature in Estonia’, Clim. Res. 15(3), 207–219.Google Scholar
  16. Jones, G. V. and Davis, R. E.: 2000, ‘Climate Influences on Grapevine Phenology, Grape Composition, and Wine Production and Quality for Bordeaux, France’, American Journal of Enology and Viticulture 51(3), 249–261.Google Scholar
  17. Jones, P. D., Jónsson, T., and Wheeler, D.: 1997, ‘Extension to the North Atlantic Oscillation Using Early Instrumental Pressure Observations from Gibraltar and South-West Iceland’, Int. J. Climatol. 17, 1433–1450.Google Scholar
  18. Keeling, C. D., Chin, F. J. S., and Whorf, T. P.: 1996, ‘Increased Activity of Northern Vegetation Inferred from Atmospheric CO2 Measurements’, Nature 382, 146–149.Google Scholar
  19. Kramer, K.: 1995, ‘Phenotypic Plasticity of the Phenology of Seven European Tree Species in Relation to Climatic Warming’, Plant Cell Environ. 18, 93–104.Google Scholar
  20. Magnuson, J. J., Robertson, D. M., and Benson, B. J. et al.: 2000, ‘Historical Trends in Lake and River Ice Cover in the Northern Hemisphere’, Science 289, 1743–1746.Google Scholar
  21. Mahrer, T.: 1985, Untersuchung über die herbstliche Laubverfärbung der Buche in der Region Liesthal-Moehlin-Basel auf Grund von langjährigen phänologischen Beobachtungsreihen und ihre Zusammenhänge mit klimatologischen Parametern, Diploma Thesis at the ETH Zürich.Google Scholar
  22. Menzel, A.: 1997, Phänologie von Waldbäumen unter sich ändernden Klimabedingungen-Auswertung der Beobachtungen in den Internationalen Phänologischen Gärten und Möglichkeiten der Modellierung von Phänodaten, Forstliche Forschungsberichte Nr. 164, München.Google Scholar
  23. Menzel, A.: 1998, Zeitliche Trends ausgesuchter phänologischer Phasen in Deutschland aus dem Zeitraum 1951-1996, Report for the German Weather Service.Google Scholar
  24. Menzel, A.: 2000, ‘Trends in Phenological Phases in Europe between 1951 and 1996’, International Journal of Biometeorology 44(2), 76–81.Google Scholar
  25. Menzel, A. and Estrella, N.: 2001, ‘Plant Phenological Changes’, inWalther, G.-R., Burga, C. A., and Edwards P. J. (eds.), Fingerprints of Climate Change-Adapted Behaviour and Shifting Species Ranges, Kluwer Academic/Plenum Publishers, New York and London, pp. 123–137.Google Scholar
  26. Menzel, A., Estrella, N., and Fabian, P.: 2001, ‘Spatial and Temporal Variability of the Phenological Seasons in Germany from 1951-1996’, Global Change Biology 7, 657–666.Google Scholar
  27. Menzel, A. and Fabian, P.: 1999, ‘Growing Season Extended in Europe’, Nature 397, 659.Google Scholar
  28. Myneni, R. B., Keeling, C. D., Tucker, C. J., Asrar, G., and Nemani, R. R.: 1997, ‘Increased Plant Growth in the Northern High Latitudes from 1981 to 1991’, Nature 386, 698–702.Google Scholar
  29. Ottersen, G., Planque, B., Belgrano, A., Post, E., Reid, P. C., and Stenseth, N. C.: 2001, ‘Ecological Effects of the North Atlantic Oscillation’, Oecologia 128, 1–14.Google Scholar
  30. Post, E. and Stenseth, N. C.: 1999, ‘Climatic Variability, Plant Phenology, and Northern Ungulates’, Ecology 80(4), 1322–1339.Google Scholar
  31. Rapp, J.: 2000, ‘Konzeption, Problematik und Ergebnisse klimatologischer Trendanalysen für Europa und Deutschland’, Berichte des Deutschen Wetterdienstes 212, Offenbach a. Main, 145 pp.Google Scholar
  32. Rapp, J.: 2001, ‘Probleme bei der Analyse von Klimatrends auf der Basis von Stationszeitreihen’, in Deutscher Wetterdienst (ed.), Klimastatusbericht 2001, Offenbach, pp. 174–179.Google Scholar
  33. Rapp, J. and Schönwiese, C. D.: 1994, ‘“Thermische Jahreszeiten” als anschauliche Charakteristik klimatischer Trends’, Meteorologische Zeitschrift 3, 91–94.Google Scholar
  34. Rapp, J. and Schönwiese, C. D.: 1995, ‘Atlas der Niederschlags-und Temperaturtrends in Deutschland 1891–1990’, Frankfurter Geowissenschaftliche Arbeiten, Serie B Meteorologie und Geophysik, Band 5, 255 pp.Google Scholar
  35. Rötzer, T., Wittenzeller, M., Haeckel, H., and Nekovar, J.: 2000, ‘Phenology in Central Europe-Differences and Trends of Spring Phenophases in Urban and Rural Areas’, International Journal of Biometeorology 44, 60–66.Google Scholar
  36. Sagarin, R. and Micheli, F.: 2001, ‘Climate Change in Nontraditional Data Sets’, Science 294, 811.Google Scholar
  37. Scheifinger, H.: 2001, ‘Ground Based Alpine Monitoring of the Seasonality of Plants’, in Menzel, A. (ed.), Annual Interim Report (Feb. 2000–Jan. 2001) of the EU Project POSITIVE (EVK2-CT-1999-00012), TU Munich, pp. 26–41.Google Scholar
  38. Schwartz, M. D.: 1998, ‘Green-Wave Phenology’, Nature 394, 839–840.Google Scholar
  39. Schwartz, M. D. and Reiter, B. E.: 2000, ‘Changes in North American Spring’, Int. J. Clim. 20(8), 929–932.Google Scholar
  40. Seyfert, F.: 1955, ‘Eintritt phänologischer Phasen und auslösende Wetterlagen’, Angewandte Meteorologie 2(6), 183–190.Google Scholar
  41. Sparks, T. H. and Carey, P. D.: 1995, ‘The Responses of Species to Climate over Two Centuries: An Analysis of the Marsham Phenological Records, 1736-1947’, J. Ecol. 83, 321–329.Google Scholar
  42. Sparks, T. H., Jeffree, E. P., and Jeffree, C. E.: 2000, ‘An Examination of the Relationship between Flowering Times and Temperature at the National Scale using Long-Term Phenological Records from the U.K.’, International Journal of Biometeorology 44, 82–87.Google Scholar
  43. Walkovszky, A.: 1998, ‘Changes in Phenology of the Locust Tree (Robinia pseudoacacia L.) in Hungary’, International Journal of Biometeorology 41, 155–160.Google Scholar

Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Annette Menzel
    • 1
  1. 1.Lehrstuhl für Bioklimatologie und ImmissionsforschungFreisingGermany

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