How important are terrestrial organic carbon inputs for secondary production in freshwater ecosystems
Michael T. Brett,Stuart E. Bunn,Sudeep Chandra,Aaron W. E. Galloway,Fen Guo,Martin J. Kainz,Paula Kankaala,Danny C. P. Lau,Timothy P. Moulton,Mary E. Power,Joseph B. Rasmussen,Sami J. Taipale,James H. Thorp,John D. Wehr +13 more
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A large number of freshwater systems receive substantial inputs of terrestrial organic matter, and terrestrial derived dissolved organic carbon inputs can modify light availability, the spatial distribution and the biophysical properties of the system.Abstract:
1. Many freshwater systems receive substantial inputs of terrestrial organic matter. Terrestrially derived dissolved organic carbon (t-DOC) inputs can modify light availability, the spatial distrib ...read more
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Diet tracing in ecology: Method comparison and selection
TL;DR: The comparison of diet quantifications from field observations showed that different techniques aligned well in cases with less than six diet items, but diverged considerably when applied to more complex diet mixtures, so there is an urgent need for more experiential comparisons among the dietary methods.
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Global change-driven effects on dissolved organic matter composition : Implications for food webs of northern lakes
Irena F. Creed,Ann-Kristin Bergström,Charles G. Trick,Nancy B. Grimm,Dag O. Hessen,Jan Karlsson,Karen A. Kidd,Emma S. Kritzberg,Diane M. McKnight,Erika C. Freeman,Oscar E. Senar,Agneta Andersson,Jenny Ask,Martin Berggren,Mehdi Cherif,Reiner Giesler,Erin R. Hotchkiss,Pirkko Kortelainen,Monica M. Palta,Tobias Vrede,Gesa A. Weyhenmeyer +20 more
TL;DR: It is concluded that global change in northern regions leads not only to reduced primary productivity but also to nutritionally poorer lake food webs, with discernible consequences for the trophic web to fish and humans.
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Large but variable methane production in anoxic freshwater sediment upon addition of allochthonous and autochthonous organic matter.
Charlotte Grasset,Raquel Mendonça,Gabriella Villamor Saucedo,David Bastviken,Fábio Roland,Sebastian Sobek +5 more
TL;DR: The large CH4 production in an anoxic sediment fueled by alloOC is a new finding which indicates that all systems with anoxic conditions and high sedimentation rates have the potential to be CH4 emitters.
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Essential Biomolecules in Food Webs
TL;DR: The ecological role of essential nutritional biomolecules (fatty acids (FA), amino acids (AA), sterols, vitamins) in aquatic and terrestrial food webs, encompassing the forces behind their environmental distribution is reviewed, offering a great advantage for their use as trophic markers.
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Salinity impacts on river ecosystem processes: a critical mini-review
TL;DR: Field-observations of salinity impacts on ecosystem processes such as leaf decomposition, metabolism, biomass production and nutrient cycling are reviewed, with a special emphasis on dryland ecosystems.
References
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The River Continuum Concept
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Microbial cellulose utilization: fundamentals and biotechnology.
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Resource Availability and Plant Antiherbivore Defense
TL;DR: Resource availability in the environment is proposed as the major determinant of both the amount and type of plant defense, and theories on the evolution of plant defenses are compared with other theories.