Winter warming pulses affect the development of planted temperate grassland and dwarf-shrub heath communities

2011 ◽  
Vol 4 (1) ◽  
pp. 13-21 ◽  
Author(s):  
Juergen Kreyling ◽  
Gerald Jurasinski ◽  
Kerstin Grant ◽  
Vroni Retzer ◽  
Anke Jentsch ◽  
...  
Biologia ◽  
2006 ◽  
Vol 61 (4) ◽  
Author(s):  
Anton Petrík ◽  
Zuzana Dúbravcová ◽  
Ivan Jarolímek ◽  
Ján Kliment ◽  
Jozef Šibík ◽  
...  

AbstractWe present a syntaxonomic account of the communities of the alliances of Oxytropido-Elynion Br.-Bl. 1949 and Festucion versicoloris Krajina 1933 from Western Carpathians. Both alliances comprise naked-rush, cushion form and dwarf-shrub heath communities typical of wind-exposed habitats occurring at the highest altitudes of the Tatra Mts. They represent a relic vegetation of the cold stages of the Pleistocene (probably Late Glacial Maximum) and they can be classified within the class of Carici rupestris-Kobresietea bellardii Ohba 1974. A set of relevés was subject to numerical-classification analysis. Floristics and ecology of the communities were characterised and the relationships to similar syntaxa were discussed.The Oxytropido-Elynion is restricted to the extreme ridge positions in the highest altitudes of the Belianske Tatry Mts. Five associations were distinguished, such as the Pyrolo carpaticae-Salicetum reticulatae, the Festuco versicoloris-Oreochloetum distichae, the Festucetum versicoloris, the Oxytropido carpaticae-Elynetum myosuroides and the Drabo siliquosae-Festucetum versicoloris.The Festucion versicoloris is limited to the mylonite zone of the alpine and subnival belt of the Vysoké Tatry and Západné Tatry Mts (and found as rare in the Nízke Tatry Mts). The stands of these communities prefer terraces of steep rocky faces and cliffs and stabilised small-grained screes below the cliffs. Within this alliance, three associations were described, including the Agrostio alpinae-Festucetum versicoloris, the Silenetum acaulis and the Salicetum kitaibelianae.


2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Juergen Kreyling ◽  
Kerstin Grant ◽  
Verena Hammerl ◽  
Mohammed A. S. Arfin-Khan ◽  
Andrey V. Malyshev ◽  
...  

Abstract Climate change affects all seasons, but warming is more pronounced in winter than summer at mid- and high latitudes. Winter warming can have profound ecological effects, which are rarely compared to the effects of summer warming, and causal explanations are not well established. We compared mild aboveground infrared warming in winter to warming in summer in a semi-natural, cool-temperate grassland in Germany for four years. Aboveground plant biomass increased following winter warming (+18%) and was unaffected by summer warming. Winter warming affected the composition of the plant community more than summer warming, favoring productive species. Winter warming increased soil respiration more than summer warming. Prolonged growing seasons and changes in plant-community composition accounted for the increased aboveground biomass production. Winter warming stimulated ecological processes, despite causing frost damage to plant roots and microorganisms during an extremely cold period when warming reduced the thermal insulation provided by snow. Future warming beyond such intermittent frosts may therefore further increase the accelerating effects of winter warming on ecological processes.


2018 ◽  
Vol 24 (8) ◽  
pp. 3357-3367 ◽  
Author(s):  
Johanna Birgander ◽  
Pål Axel Olsson ◽  
Johannes Rousk

2008 ◽  
Vol 14 (11) ◽  
pp. 2603-2612 ◽  
Author(s):  
S. BOKHORST ◽  
J. W. BJERKE ◽  
F. W. BOWLES ◽  
J. MELILLO ◽  
T. V. CALLAGHAN ◽  
...  

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