NDLI: Low resistance of montane and alpine grasslands to abrupt changes in temperature and precipitation regimes

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Low resistance of montane and alpine grasslands to abrupt changes in temperature and precipitation regimes

Content Provider	Scilit
Author	Berauer, Bernd Josef Wilfahrt, Peter A. Arfin-Khan, Mohammed A. S. Eibes, Pia Heßberg, Andreas Von Ingrisch, Johannes Schloter, Michael Schuchardt, Max A. Jentsch, Anke
Copyright Year	2019
Description	Journal: Arctic, Antarctic, and Alpine Research High-elevation ecosystems will experience increasing periods of above-average warmth and altered precipitation changes because of climate change. This causes uncertainties for community properties such as productivity and biodiversity. Increasing temperature may increase productivity by increasing growing season length and metabolic rate or decrease productivity by causing drought stress. Competitive outcomes between species may change with altered climatic conditions, causing shifts in community composition. This study investigates the resistance of aboveground biomass and plant community composition of montane and alpine grassland ecosystems to abruptly altered temperature and precipitation conditions. Intact plant-soil communities were translocated downslope spanning an elevational gradient of 2,090 m in the European Alps. We hypothesize that increasing temperature leads to (1) increased aboveground biomass in the absence of precipitation deficits, (2) decreased species richness, and (3) shifts in plant community composition. After one year of exposure to their new environment, aboveground biomass changes appeared to be dependent on precipitation regimes, whereas species richness declined consistently with changed climatic conditions. No deterministic shift in community composition was found. Abrupt changes in climatic conditions can lead to rapid responses of community properties, indicating that these high-elevation communities may have low initial resistance to future heat waves and droughts.
Related Links	https://www.tandfonline.com/doi/pdf/10.1080/15230430.2019.1618116?needAccess=true
Ending Page	231
Page Count	17
Starting Page	215
ISSN	15230430
e-ISSN	19384246
DOI	10.1080/15230430.2019.1618116
Journal	Arctic, Antarctic, and Alpine Research
Issue Number	1
Volume Number	51
Language	English
Publisher	Informa UK Limited
Publisher Date	2019-01-01
Access Restriction	Open
Subject Keyword	Journal: Arctic, Antarctic, and Alpine Research Climate Manipulation Experiment Community Ecology Elevational Gradient
Content Type	Text
Subject	Earth-Surface Processes Ecology, Evolution, Behavior and Systematics Global and Planetary Change

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