Journal article
      
      
      
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      Biological Flora of the British Isles: Ambrosia artemisiifolia
      
      
        
      
      
      
      
        
          
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Essl, Franz
Department of Botany and Biodiversity Research, Division of Conservation, Vegetation and Landscape Ecology, University of Vienna, Austria - Centre for Invasion Biology, Stellenbosch University, Matieland, South Africa
          
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Biró, Krisztina
Georgikon Faculty, Institute for Plant Protection, University of Pannonia, Keszthely, Hungary
          
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Brandes, Dietmar
Institute for Plant Biology, Technical University Braunschweig, Germany
          
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Broennimann, Olivier
  Department of Ecology Evolution, University of Lausanne, Switzerland
          
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Bullock, James M.
NERC Centre for Ecology Hydrology, Wallingford, Oxfordshire, UK
          
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Chapman, Daniel S.
NERC Centre for Ecology Hydrology, Edinburgh, UK
          
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Chauvel, Bruno
INRA, UMR1347, Dijon, France
          
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Dullinger, Stefan
Department of Botany and Biodiversity Research, Division of Conservation, Vegetation and Landscape Ecology, University of Vienna, Austria - Vienna Institute for Nature Conservation Analyses, Vienna, Austria
          
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Fumanal, Boris
Université Blaise Pascal, UMR547 PIAF, BP 10448, Clermont Ferrand, France - INRA, UMR547 PIAF, Clermont Ferrand, France
          
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Guisan, Antoine
  Department of Ecology Evolution, University of Lausanne, Switzerland - Institute of Earth Surface Dynamics, University of Lausanne, Switzerland
          
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Karrer, Gerhard
Institute of Botany, University of Natural Resources and Life Sciences Vienna, Austria
          
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Kazinczi, Gabriella
Department of Plant Production and Plant Protection, Institute of Plant Science, Faculty of Agricultural and Environmental Sciences, Kaposvár University, Hungary
          
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Kueffer, Christoph
  Institute of Integrative Biology, ETH Zürich, Zürich, Switzerland
          
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Laitung, Beryl
Université de Bourgogne, UMR 1347, Dijon, France
          
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Lavoie, Claude
Ecole supérieure d aménagement du territoire et de développement regional, Université Laval, Québec, Canada
          
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Leitner, Michael
Heinz Maier Leibnitz Zentrum, Technische Universität, München, Garching, Germany
          
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Mang, Thomas
Department of Botany and Biodiversity Research, Division of Conservation, Vegetation and Landscape Ecology, University of Vienna, Austria
          
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Moser, Dietmar
Department of Botany and Biodiversity Research, Division of Conservation, Vegetation and Landscape Ecology, University of Vienna, Austria
          
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Müller-Schärer, Heinz
  Department of Biology, Unit Ecology Evolution, University of Fribourg, Switzerland
          
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Petitpierre, Blaise
  Department of Ecology Evolution, University of Lausanne, Switzerland
          
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Richter, Robert
Faculty of Physics, University Vienna, Austria
          
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Schaffner, Urs
CABI Switzerland, Delémont, Switzerland
          
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Smith, Matt
Laboratory of Aeropalynology, Faculty of Biology, Adam Mickiewicz University, Pozna , Poland
          
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Starfinger, Uwe
Julius Kuehn Institute, Federal Research Centre for Cultivated Plants, Institute for National and International Plant Health, Braunschweig, Germany
          
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Vautard, Robert
Laboratoire des Sciences du Climat et de l Environnement, Gif sur Yvette, France
          
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Vogl, Gero
Faculty of Physics, University Vienna, Austria
          
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Lippe, Moritz von der
  Institute of Ecology, Technical University of Berlin, Germany
          
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Follak, Swen
Austrian Agency for Health and Food Safety, Institute for Sustainable Plant Production, Vienna, Austria
          
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        Published in:
        
          
            
            - Journal of Ecology. - 2015, vol. 103, no. 4, p. 1069–1098
 
       
      
      
      
      
      
       
      
      
      
        
        English
        
        
        
          This account presents information on all aspects of the biology of Ambrosia artemisiifolia L. (Common ragweed) that are relevant to understanding its ecology. The main topics are presented within the standard framework of the Biological Flora of the British Isles: distribution, habitat, communities, responses to biotic factors, responses to environment, structure and physiology, phenology, floral and seed characters, herbivores and disease, and history, conservation, impacts and management.Ambrosia artemisiifolia is a monoecious, wind-pollinated, annual herb native to North America whose height varies from 10 cm to 2.5 m, according to environmental conditions. It has erect, branched stems and pinnately lobed leaves. Spike-like racemes of male capitula composed of staminate (male) florets terminate the stems, while cyme-like clusters of pistillate (female) florets are arranged in groups in the axils of main and lateral stem leaves.Seeds require prolonged chilling to break dormancy. Following seedling emergence in spring, the rate of vegetative growth depends on temperature, but development occurs over a wide thermal range. In temperate European climates, male and female flowers are produced from summer to early autumn (July to October).Ambrosia artemisiifolia is sensitive to freezing. Late spring frosts kill seedlings and the first autumn frosts terminate the growing season. It has a preference for dry soils of intermediate to rich nutrient level.Ambrosia artemisiifolia was introduced into Europe with seed imports from North America in the 19th century. Since World War II, it has become widespread in temperate regions of Europe and is now abundant in open, disturbed habitats as a ruderal and agricultural weed.Recently, the North American ragweed leaf beetle (Ophraella communa) has been detected in southern Switzerland and northern Italy. This species appears to have the capacity to substantially reduce growth and seed production of A. artemisiifolia.In heavily infested regions of Europe, A. artemisiifolia causes substantial crop-yield losses and its copious, highly allergenic pollen creates considerable public health problems. There is a consensus among models that climate change will allow its northward and uphill spread in Europe.
        
        
       
      
      
      
        
        
        
        
        
        
        
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          Faculty
          
        
- Faculté des sciences et de médecine
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          Department
          
        
- Département de Biologie
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                  Botany
                
              
            
          
        
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          Persistent URL
        
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          https://folia.unifr.ch/unifr/documents/304342
        
 
   
  
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