Whole ecosystem metabolic pulses following precipitation events
نویسندگان
چکیده
1 Department of Botany and Plant Sciences, University of California Riverside, Riverside, California, USA; 2 Southwest Watershed Research Center, United States Department of Agriculture, Agricultural Research Service, Tucson, Arizona, USA; 3 Department of Ecology and Evolutionary Biology, University of Arizona, Tucson, Arizona, USA; and 4 B2 Earthscience, University of Arizona, Tucson, Arizona, USA
منابع مشابه
Pulse Events and Arid Ecosystems
In arid/semi-arid ecosystems, biological resources, such as water, soil nutrients, and plant biomass, typically go through periods of high and low abundance. Short periods of high resource abundance are usually triggered by rainfall events, which, despite of the overall scarcity of rain, can saturate the resource demand of some biological processes for a time. This review develops the idea that...
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In many ecosystems, seasonal shifts in temperature and precipitation induce pulses of primary productivity that vary in phenology, abundance, and nutritional quality. Variation in these resource pulses could strongly influence community composition and ecosystem function, because these pervasive bottom-up forces play a primary role in determining the biomass, life cycles, and interactions of or...
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Despite El Niño events being one of the main forces shaping the coastal desert vegetation in South America, the impacts of the high precipitation typical of this rare but recurrent climatic event remain understudied. Here we monitored the plant community of a coastal lomas, a seasonal desert ecosystem, during 1998 and 2001 to analyse its changes during the 1997-98 El Niño and the following La N...
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تاریخ انتشار 2008