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Tytuł:
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Fear of predation slows plant-litter decomposition.
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Autorzy:
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Hawlena D; School of Forestry and Environmental Studies, Yale University, 370 Prospect Street, New Haven, CT 06511, USA. />Strickland MS
Bradford MA
Schmitz OJ
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Źródło:
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Science (New York, N.Y.) [Science] 2012 Jun 15; Vol. 336 (6087), pp. 1434-8.
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Typ publikacji:
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Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.
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Język:
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English
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Imprint Name(s):
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Publication: : Washington, DC : American Association for the Advancement of Science
Original Publication: New York, N.Y. : [s.n.] 1880-
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MeSH Terms:
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Food Chain*
Plants*
Predatory Behavior*
Soil Microbiology*
Stress, Physiological*
Grasshoppers/*physiology
Spiders/*physiology
Animals ; Bacteria/metabolism ; Biomass ; Carbon/analysis ; Carbon/metabolism ; Ecosystem ; Energy Metabolism ; Fear ; Grasshoppers/chemistry ; Herbivory/physiology ; Insect Proteins/analysis ; Insect Proteins/metabolism ; Nitrogen/analysis ; Nitrogen/metabolism ; Soil/chemistry
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Substance Nomenclature:
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0 (Insect Proteins)
0 (Soil)
7440-44-0 (Carbon)
N762921K75 (Nitrogen)
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Entry Date(s):
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Date Created: 20120616 Date Completed: 20120914 Latest Revision: 20171116
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Update Code:
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20240104
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DOI:
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10.1126/science.1220097
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PMID:
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22700928
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Aboveground consumers are believed to affect ecosystem functioning by regulating the quantity and quality of plant litter entering the soil. We uncovered a pathway whereby terrestrial predators regulate ecosystem processes via indirect control over soil community function. Grasshopper herbivores stressed by spider predators have a higher body carbon-to-nitrogen ratio than do grasshoppers raised without spiders. This change in elemental content does not slow grasshopper decomposition but perturbs belowground community function, decelerating the subsequent decomposition of plant litter. This legacy effect of predation on soil community function appears to be regulated by the amount of herbivore protein entering the soil.