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Nutrient and stoich...
Nutrient and stoichiometry dynamics of decomposing litter in stream ecosystems : a global synthesis
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- Robbins, Caleb J. (författare)
- Department of Biology, Center for Reservoir and Aquatic Systems Research, Baylor University, TX, Waco, United States
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- Manning, David W. P. (författare)
- Department of Biology, University of Nebraska at Omaha, NE, Omaha, United States
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- Halvorson, Halvor M. (författare)
- Department of Biology, University of Central Arkansas, AR, Conway, United States
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- Norman, Beth C. (författare)
- Lacawac Sanctuary Field Station and Environmental Education Center, PA, Lake Ariel, United States
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- Eckert, Rebecca A. (författare)
- Biology Department, Environmental Studies Department, Gettysburg College, PA, Gettysburg, United States
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- Pastor, Ada (författare)
- Group of Continental Aquatic Ecology Research (GRECO), Institute of Aquatic Ecology, University of Girona, Girona, Spain
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- Dodd, Allyn K. (författare)
- Arkansas School for Math, Sciences, and the Arts, AR, Hot Springs, United States
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- Jabiol, Jérémy (författare)
- HYFE—Hydrobiologie et Fonctionnement des Ecosystèmes, Elven, France
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- Bastias, Elliot (författare)
- Umeå universitet,Institutionen för ekologi, miljö och geovetenskap
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- Gossiaux, Alice (författare)
- University of Lorraine, Lorraine, France
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- Mehring, Andrew S. (författare)
- Department of Biology, University of Louisville, KY, Louisville, United States
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(creator_code:org_t)
- John Wiley & Sons, 2023
- 2023
- Engelska.
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Ingår i: Ecology. - : John Wiley & Sons. - 0012-9658 .- 1939-9170. ; 104:7
- Relaterad länk:
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https://doi.org/10.1...
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https://umu.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Decomposing organic matter forms a substantial resource base, fueling the biogeochemical function and secondary production of most aquatic ecosystems. However, detrital N (nitrogen) and P (phosphorus) dynamics remain relatively unexplored in aquatic ecosystems relative to terrestrial ecosystems, despite fundamentally linking microbial processes to ecosystem function across broad spatial scales. We synthesized 217 published time series of detrital carbon (C), N, P, and their stoichiometric ratios (C:N, C:P, N:P) from stream ecosystems to analyze the temporal nutrient dynamics of decomposing litter using generalized additive models. Model results indicated that detritus was a net source of N (irrespective of inorganic or organic form) to the environment, regardless of initial N content. In contrast, P sink/source dynamics were more strongly influenced by the initial P content, in which P-poor litters were sinks for nutrients until these shifted to net P mineralization after ~40% mass loss. However, large variations surrounded both the N and P predictions, suggesting the importance of nonmicrobial factors such as fragmentation by invertebrates. Detrital C:N ratios converged and became more similar toward the end of the decomposition, suggesting predictable microbial functional effects throughout detrital ontogeny. C:P and N:P ratios also converged to some degree, but these model predictions were less robust than for C:N, due in part to the lower number of published detrital C:P time series. The explorations of environmental covariate effects were frequently limited by a few coincident covariate measurements across studies, but temperature, N availability, and P tended to accelerate the existing ontogenetic patterns in C:N. Our analysis helps to unite organic matter decomposition across aquatic–terrestrial boundaries by describing the basic patterns of elemental flows catalyzed by decomposition in streams, and points to a research agenda with which to continue addressing gaps in our knowledge of detrital nutrient dynamics across ecosystems.
Ämnesord
- NATURVETENSKAP -- Biologi -- Ekologi (hsv//swe)
- NATURAL SCIENCES -- Biological Sciences -- Ecology (hsv//eng)
Nyckelord
- biogeochemistry
- decomposition
- detritus
- ecological stoichiometry
- lotic
- nutrient cycling
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
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Ecology
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Till lärosätets databas
- Av författaren/redakt...
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Robbins, Caleb J ...
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Manning, David W ...
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Halvorson, Halvo ...
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Norman, Beth C.
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Eckert, Rebecca ...
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Pastor, Ada
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visa fler...
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Dodd, Allyn K.
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Jabiol, Jérémy
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Bastias, Elliot
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Gossiaux, Alice
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Mehring, Andrew ...
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Biologi
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och Ekologi
- Artiklar i publikationen
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Ecology
- Av lärosätet
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Umeå universitet