2022 Early Hearing Detection & Intervention Virtual Conference
March 13 - 15, 2022
6/07/2017 | 9:00 AM - 9:15 AM | NEW INSIGHTS TO STREAM METABOLISM IN THE ERA OF FOOD PROCUTION: A GLOBAL META-ANALYSIS. | 302B
NEW INSIGHTS TO STREAM METABOLISM IN THE ERA OF FOOD PROCUTION: A GLOBAL META-ANALYSIS.
Global agriculture has widely altered stream ecosystem processes. At the base of the food web agriculture modifies the rates of gross primary production and ecosystem respiration (i.e. stream metabolism), and can lead to changes in carbon sources fueling ecosystem function. Previous synthesis of anthropogenic influences on metabolism have studied the aggregated effects of diverse land uses (e.g. urban, logging and agriculture) despite that metabolic responses may differ between land use types. Recent metabolism studies including previously underrepresented biomes provide a timely opportunity to deepen our understanding of global patterns of metabolism in reference and agricultural streams. The overarching goal of this meta-analysis was to provide a global view of how agriculture has altered metabolism across biomes. Specifically, we set out to answer the following questions: Do streams in biomes with contrasting riparian vegetation types respond differently to agriculture? How does metabolism differ between food production systems? We discuss the implications of the light regime as a main driver of global stream metabolism, the implications of food production on metabolism and address future research needs.
- C31 Organic Matter Processing
- C27 Landuse and Non-Point source Impacts
- C32 Primary and Secondary Production
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Presenters/Authors
Aline Ortega Pieck
(), University of Idaho, alineorteg@gmail.com;
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Alexander Fremier
(), Washington State University, Pullman, WA, alex.fremier@wsu.edu;
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