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231225s2018 xx |||||o 00| ||eng c |
| 024 |
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|a 10.1111/gcb.14024
|2 doi
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|a pubmed24n0930.xml
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|a (DE-627)NLM279293577
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|a (NLM)29265568
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a eng
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| 100 |
1 |
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|a Petrie, Matthew D
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Regional grassland productivity responses to precipitation during multiyear above- and below-average rainfall periods
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| 264 |
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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| 500 |
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|a Date Completed 26.11.2018
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|a Date Revised 26.11.2018
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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| 520 |
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|a © 2018 John Wiley & Sons Ltd.
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|a There is considerable uncertainty in the magnitude and direction of changes in precipitation associated with climate change, and ecosystem responses are also uncertain. Multiyear periods of above- and below-average rainfall may foretell consequences of changes in rainfall regime. We compiled long-term aboveground net primary productivity (ANPP) and precipitation (PPT) data for eight North American grasslands, and quantified relationships between ANPP and PPT at each site, and in 1-3 year periods of above- and below-average rainfall for mesic, semiarid cool, and semiarid warm grassland types. Our objective was to improve understanding of ANPP dynamics associated with changing climatic conditions by contrasting PPT-ANPP relationships in above- and below-average PPT years to those that occurred during sequences of multiple above- and below-average years. We found differences in PPT-ANPP relationships in above- and below-average years compared to long-term site averages, and variation in ANPP not explained by PPT totals that likely are attributed to legacy effects. The correlation between ANPP and current- and prior-year conditions changed from year to year throughout multiyear periods, with some legacy effects declining, and new responses emerging. Thus, ANPP in a given year was influenced by sequences of conditions that varied across grassland types and climates. Most importantly, the influence of prior-year ANPP often increased with the length of multiyear periods, whereas the influence of the amount of current-year PPT declined. Although the mechanisms by which a directional change in the frequency of above- and below-average years imposes a persistent change in grassland ANPP require further investigation, our results emphasize the importance of legacy effects on productivity for sequences of above- vs. below-average years, and illustrate the utility of long-term data to examine these patterns
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| 650 |
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4 |
|a Journal Article
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| 650 |
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4 |
|a Research Support, U.S. Gov't, Non-P.H.S.
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| 650 |
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4 |
|a climate change
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| 650 |
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4 |
|a grassland dynamics
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| 650 |
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4 |
|a grassland productivity
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| 650 |
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4 |
|a legacy effects
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| 650 |
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4 |
|a precipitation
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| 700 |
1 |
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|a Peters, Debra P C
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Jin
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Blair, John M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Burruss, Nathan D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Collins, Scott L
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Derner, Justin D
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Gherardi, Laureano A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hendrickson, John R
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Sala, Osvaldo E
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Starks, Patrick J
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Steiner, Jean L
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Global change biology
|d 1999
|g 24(2018), 5 vom: 22. Mai, Seite 1935-1951
|w (DE-627)NLM098239996
|x 1365-2486
|7 nnns
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| 773 |
1 |
8 |
|g volume:24
|g year:2018
|g number:5
|g day:22
|g month:05
|g pages:1935-1951
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| 856 |
4 |
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|u http://dx.doi.org/10.1111/gcb.14024
|3 Volltext
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|h 1935-1951
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