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Université de Fribourg

Predicting climate change impacts on the threatened Quercus arbutifolia in montane cloud forests in southern China and Vietnam: Conservation implications

Song, Yi-Gang ; Petitpierre, Blaise ; Denga, Min ; Wu, Jin-Ping ; Kozlowski, Gregor

In: Forest Ecology and Management, 2019, vol. 444, p. 269–279

Trees of montane cloud forests (MCFs) often have small and isolated populations and face numerous threats. Due to limited conservation resources, management decisions are often based on scarce biological information. This study investigated the current status of populations of the critically endangered oak species Quercus arbutifolia in southern China, including its distribution, threats,...

Université de Fribourg

Biological Flora of the British Isles: Ambrosia artemisiifolia

Essl, Franz ; Biró, Krisztina ; Brandes, Dietmar ; Broennimann, Olivier ; Bullock, James M. ; Chapman, Daniel S. ; Chauvel, Bruno ; Dullinger, Stefan ; Fumanal, Boris ; Guisan, Antoine ; Karrer, Gerhard ; Kazinczi, Gabriella ; Kueffer, Christoph ; Laitung, Beryl ; Lavoie, Claude ; Leitner, Michael ; Mang, Thomas ; Moser, Dietmar ; Müller-Schärer, Heinz ; Petitpierre, Blaise ; Richter, Robert ; Schaffner, Urs ; Smith, Matt ; Starfinger, Uwe ; Vautard, Robert ; Vogl, Gero ; Lippe, Moritz von der ; Follak, Swen

In: Journal of Ecology, 2015, vol. 103, no. 4, p. 1069–1098

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...

Université de Fribourg

Contrasting spatio-temporal climatic niche dynamics during the eastern and western invasions of spotted knapweed in North America

Broennimann, Olivier ; Mráz, Patrik ; Petitpierre, Blaise ; Guisan, Antoine ; Müller-Schärer, Heinz

In: Journal of Biogeography, 2013///n/a–n/a

Aim: The spotted knapweed (Centaurea stoebe), a plant native to south-east and central Europe, is highly invasive in North America. We investigated the spatio-temporal climatic niche dynamics of the spotted knapweed in North America along two putative eastern and western invasion routes. We then considered the patterns observed in the light of historical, ecological and evolutionary...