Redfield stoichiometry
WebMarine plankton elemental stoichiometric ratios can deviate from the Redfield ratio (106C:16N:1P); here, we examine physiological and biogeochemical mechanisms that lead to the observed variation across lineages, regions, and seasons. Many models of ecological stoichiometry blend together acclimative and adaptive responses to environmental … WebAug 8, 2011 · Nutrient limitation is known to inhibit growth and metabolism and to alter elemental stoichiometric ratios in phytoplankton. In this study, physiological changes in Thalassirosira weissflogii were measured under different dissolved inorganic phosphate (DIP) regimes in semi-continuous cultures to revisit the utility of the Redfield ratio for …
Redfield stoichiometry
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WebNov 27, 2014 · The outstanding lifespan of the canonical Redfield ratio has shown the power of elemental stoichiometry in describing ocean life. But the biological mechanisms … WebEcological stoichiometry seeks to discover how the chemical content of organisms shapes their ecology. Ecological stoichiometry has been applied to studies of nutrient recycling, resource competition, animal growth, and nutrient limitation patterns in whole ecosystems. The Redfield ratio of the world's oceans is one very famous application of ...
WebApr 25, 2024 · Abstract Elemental homeostasis has been largely characterized using three important elements that were part of the Redfield ratio (i.e., carbon: nitrogen: phosphorus). These efforts have revealed substantial diversity in homeostasis among taxonomic groups and even within populations. WebDec 16, 2004 · Deviations from Redfield stoichiometry may be attributable to surface adsorption of phosphorus rather than to biological processes, and this scavenging could affect the interpretation of marine nutrient inventories and ecosystem models. Publication types Research Support, U.S. Gov't, Non-P.H.S. MeSH terms Adsorption Atlantic Ocean
Webbecause atmospheric N2 can be fixed (Redfield 1958; Vitousek & Howarth 1991). Experimental additions of inorganic nutrients to seawater samples from various marine … WebMay 18, 2024 · Since the recognition that life on Earth is characterized by a striking regularity in the ratio of elements, as originally characterized by Redfield (Redfield 1958; Geider and La Roche 2002; Eighty years of Redfield 2014), stoichiometric ratios have been a primary target of astrobiological measurements and theories (Elser 2003; Young et al. 2014).
WebAbstract. Marine plankton elemental stoichiometric ratios can deviate from the Redfield ratio (106C:16N:1P); here, we examine physiological and biogeochemical mechanisms …
Webtude of the Redfield C:N:P ratio of 106:16:1 for either phytoplankton or the deep ocean has been elusive. It has long been recognized that conditions exist under which phytoplankton stoichiometry diverges from the canonical Redfield ratio. Furthermore, a number of processes drive oceanic nutrient inventories away from the Redfield ratio, boolean algebra to simplify logic expressionsWebRedfield noted the similarity between the average nitrogen-to-phosphorus ratio in plankton (N:P = 16 by atoms) and in deep oceanic waters (N:P = 15; refs 1, 2). He argued that this was neither a coincidence, nor the result of the plankton adapting to the oceanic stoichiometry, but rather that phytoplankton adjust the N:P stoichiometry of the ocean to meet their … boolean amplify shader editorWebJul 31, 2007 · A global meta-analysis of 2049 paired observations in plant species mixtures and monocultures shows that plant diversity conservation does not only increase plant productivity, but also optimizes ecosystem stoichiometry for the diversity and productivity of today’s and future vegetation. 35 PDF boolean analysis of logic circuitsWeb“Strict Homeostasis” in Ecological Stoichiometry. 时间：2024年05月02日 09:12 点击数： ... P ratio shifts from the Redfield ratio to be higher, while dynamics are more sensitive to P-associated stoichiometric variability when the environmental N:P shifts from the Redfield ratio to be lower. ... hashgiftedWebJun 4, 2024 · The study of nutrient stoichiometry, pioneered by Redfield (1934, 1958), laid the foundation of two important biogeochemical principles that later became basic tenets … boolean algebra to truth tableWebMetabolism provides a basis for using first principles of physics, chemistry, and biology to link the biology of individual organisms to the ecology of populations, communities, and … hashghostWebElemental homeostasis has been largely characterized using three important elements that were part of the Redfield ratio (i.e., carbon: nitrogen: phosphorus). These efforts have revealed substantial diversity in homeostasis among taxonomic groups and … hash getordefault