17 research outputs found
Methyltransferase CheR binds to its chemoreceptor substrates independent of their signaling conformation yet modifies them differentially
Sequential modification of bacterial chemoreceptors is key for achieving both accurate adaptation and high gain
Effect of the North Atlantic Oscillation on the Thermal Characteristics of Lakes in Poland
THE TWO-COMPONENT SIGNALING PATHWAY OF BACTERIAL CHEMOTAXIS: A Molecular View of Signal Transduction by Receptors, Kinases, and Adaptation Enzymes
The Amount of Immature Glial Cells in Organotypic Brain Slices Determines the Susceptibility to Murine Cytomegalovirus Infection
Variables Affecting Resource Subsidies from Streams and Rivers to Land and their Susceptibility to Global Change Stressors
4restrictedInternational coauthor/editorStream and river ecosystems provide subsidies of emergent adult aquatic insects and other resources to terrestrial food webs, and this lotic–land subsidy has garnered much attention in recent research. Here, we critically examine a list of biotic and abiotic variables—including productivity, dominant taxa, geomorphology, and weather—that should be important in affecting the nature of these subsidy dynamics between lotic and terrestrial ecosystems, especially the pathway from emergent aquatic insects to terrestrial predators. We also explore how interactions between these variables can lead to otherwise unexpected patterns in the importance of aquatic subsidies to terrestrial food webs. Utilizing a match-mismatch framework developed previously, we identify how these variables and interactions may be affected by a broad suite of stressors in addition to contaminants: climate change, land-use conversion, damming and water abstraction, and species invasions and extinctions. These stressors may all act to modify and potentially exacerbate the effects of contaminants on subsidies. The available literature on many variables is sparse, despite strong theoretical underpinnings supporting their importance for lotic–land subsidies. Notably, these understudied variables include those related to physical geomorphology and the structure of the stream/river and floodplain/riparian zone as well as species-specific interactions between aquatic and terrestrial organisms. We suggest that more explicit characterization of these variables and more research directly linking broad-scale stressors to subsidy resource–consumer interactions can help provide a more mechanistic understanding to lotic–land subsidy dynamics within a changing environmentrestrictedMuehlbauer, Jeffrey D.; Larsen, Stefano; Jonsson, Micael; Emilson, Erik J. S.Muehlbauer, J.D.; Larsen, S.; Jonsson, M.; Emilson, E.J.S