Kreyling, J; Jurasinski, G; Grant, K; Retzer, V; Jentsch, A; Beierkuhnlein, C: Winter warming pulses affect the development of planted temperate grassland and dwarf-shrub heath communities, Plant Ecology and Diversity, 4(1), 13-21 (2011), doi:10.1080/17550874.2011.558125
Key words: EVENT 1
Abstract:
Background: Winter conditions are changing considerably due to climate change. Resulting alterations in the frequency of soil freeze-thaw cycles (FTCs) are ecologically important. Aim: We quantified the impact of winter soil-warming pulses on the community structure of temperate plant communities. Methods: The cover of vascular plant species in two vegetation types, each at three diversity levels was recorded 1 year before to 3 years after an FTC-manipulation that added five additional FTCs. Changes in species abundance patterns (Bray-Curtis similarity) were analysed by linear mixed effect models. Results: Communities exposed to additional FTCs showed less change in their species abundance patterns than the reference plots. Community development in the grassland differed between the FTC-manipulation and the reference plots in the first growing season after the FTC-manipulation, but such effects disappeared over time, whereas the divergence from the reference plots in the dwarf-shrub heath started in the second year after the FTC-manipulation and effects grew over time. Responses to FTCs were related to growth forms: some grasses increased after the FTC-manipulation, whereas the cover of dwarf shrubs was reduced. There was less change in species abundance distributions in the more diverse communities with legumes present. Conclusions: Winter climate change is a critical driver of temperate ecosystems. Short-term climatic events can have long-term implications on the structure of ecosystems. Community composition regulates alterations in the development and competitive balance of plant communities caused by soil warming pulses.
Upcoming ...



BayCEER Colloquium:
Th. 2020-01-30
BayCEER Mitgliederversammlung
Th. 2020-04-23
Physical constraints and biological controls of plant-environment interactions
Ecological-Botanical Garden:
Su. 2020-02-02
Mehr als Sonne und Strand: Pflanzen der Karibik
Geographisches Kolloquium:
Tu. 2020-01-28 now
Adivasis in the Anthropocene - What an Environmental History of Eastern India can tell us about the global agricultural and food crisis
SFB Mikroplastik:
Mo. 2020-02-03
Microplastic effects in terrestrial ecosystems
BayCEER Blog
13.01.2020
Why Science Communication?
24.05.2019
Stoichiometric controls of C and N cycling
07.05.2019
Flying halfway across the globe to dig in the dirt – a research stay in Bloomington, USA
07.05.2019
EGU – interesting research and free coffee
RSS Blog as RSS Feed
Weather research site
Niederschlag: 3.3 mm/24h
Sonnenschein: <1 h/d

...more
Globalstrahlung: 13 W/m²
Wind (Höhe 32m): 18.4 km/h

...more
This site makes use of cookies More information