Geographical variation in climatic cues for mast seeding of Fagus crenata

Masaki, Takashi; Oka, Teruki; Osumi, Katsuhiro; Suzuki, Wajiro
October 2008
Population Ecology;Oct2008, Vol. 50 Issue 4, p357
Academic Journal
Geographical variation in climatic cues for masting of Fagus crenata Blume, which is the most dominant tree species in Japanese temperate forests, was investigated in the northern part of Japan, i.e., the Tohoku district of Honshu Island and the Oshima Peninsula of Hokkaido Island. The data obtained after an 18-year assessment (1989–2006) of 163 stands, covering an area of ca. 200 × 500 km2 area, were used in this study. In all stands, mast seeding occurred three times (1995, 2000 and 2005) during the study period and the coefficient of annual variation (CV) in seedfall density was 0.94. Based on cluster analysis, the stands were classified into each of the seven groups, in which the seedfall density was temporally synchronized among the stands and showed higher values of CV (1.04–1.79). These groups were distributed spatially exclusively at the scale of 80–200 km. By selecting the tree model based on AIC values, lower temperature in spring, higher temperature in summer and seedfall density in a year were proved to have a decisive influence on the seedfall density in the subsequent year. The effects of the first two climatic cues overwhelm that of the seedfall density. Lower temperature in spring served as a cue mostly for the population in the Oshima Peninsula, while higher temperature in summer served as a cue for the populations in the Tohoku district. If this suggests a genetic variation in relation to cues, climatic changes (e.g., global warming) will have different impacts on seed production of different F. crenata populations. However, it remains to be tested in future studies whether multiple climatic cues simply reflect regionally variable climatic conditions or not.


Related Articles

  • NOTICE & COMMENT.  // Environmental Forum;Mar/Apr2010, Vol. 27 Issue 2, p25 

    The author reflects on the need for climate change communicators to use the proper framing to provide the people with accurate information about the environmental conditions. The elements of framing in action which include competing policy mechanisms and the purchase of carbon offsets measures...

  • Sound science is not enough. Hunt, Julian // New Statesman;4/3/2006, Vol. 135 Issue 4786, p14 

    In this article the author, a professor of climate modelling, criticizes conservatives who claim that climate change and air pollution are not problems and that no actions should be taken to curb the emission of greenhouse gases. He states that the campaign against global warming requires...

  • A Study on Environment Friendly and Energy Efficient Room Temperature Magnetic Refrigeration. Mehrotra, Anubhav; Menon, Rajat; Mahajan, Sanchit; Kumar, K. Senthil; Rajagopal, K. // Proceedings of World Academy of Science: Engineering & Technolog;Mar2009, Vol. 51, p770 

    The two key issues that are menacing the refrigeration and air-conditioning sector throughout the world are Ozone Depletion and Global Warming. Successful implementation of the Montreal protocol is being carried out by phasing out refrigerants with high Ozone Depleting Potential (ODP) like CFC...

  • A cooling consensus (Guest Voice).  // Moderate Voice;6/23/2013, p1 

    The author reflects on the difficulty of the global warming proponents to sell their climate-policy interventions to the public. The unfathomed complexities involved in dealing with global climate since it also put a real dent on economic growth and human welfare is cited. However, the author...

  • Climate change mitigation: trade-offs between delay and strength of action required. Vaughan, Naomi E.; Lenton, Timothy M.; Shepherd, John G. // Climatic Change;Sep2009, Vol. 96 Issue 1/2, p29 

    Climate change mitigation via a reduction in the anthropogenic emissions of carbon dioxide (CO2) is the principle requirement for reducing global warming, its impacts, and the degree of adaptation required. We present a simple conceptual model of anthropogenic CO2 emissions to highlight the...

  • As Aviation Turns Green, It Must Lead Or Be Led.  // Aviation Week & Space Technology;8/20/2007, Vol. 167 Issue 8, p106 

    The author discusses the evidence of global warming's causes that was published in 2007 by the Intergovernmental Panel on Climate Change. He reveals that the atmospheric concentration of carbon dioxide, the most important greenhouse gas produced through human activity, has increased to 379 ppm....

  • Coal: Good vs. Evil.  // Pollution Engineering;Dec2007, Vol. 39 Issue 12, p11 

    The article reports on the benefits and threats from the use of coal in the U.S. It states that coal is one of the country's major sources of electricity. Its production is expected to increase by 40 percent in 2030. In addition, the government stresses that a total of 6,000 megawatts of coal is...

  • By Any Other Name….  // Journal: American Water Works Association;Jun2008, Vol. 100 Issue 6, p6 

    The article focuses on the issue of climate change and the terms being used which refer to the changes in weather patterns. It notes that regardless of, whatever scientific interpretation is used to tackle climate change or the global warming, the clear thing is that almost part of the world...

  • CLIMATE CHANGE -- A CHALLENGE FOR SUSTAINABLE DEVELOPMENT AND ENERGY SECURITY. Calanter, Paul; Serban, Octavian // Managerial Challenges of the Contemporary Society;Jun2011, Issue 2, p44 

    Climate change is one of the most serious global threats that endanger both the environment and health. It is considered that the phenomenon, associated with the greenhouse effect, could be limited by reducing the greenhouse gas emissions through measures aimed at the sectors responsible for...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics