Shifts in the elemental stoichiometry of organisms in response to their ontogeny and to changing environmental conditions should be related to metabolomic changes because elements operate mostly as parts of molecular compounds. Here we show this relationship in leaves of Erica multiflora throughout their seasonal development and in response to moderate experimental field conditions of drought a...

—Ecological stoichiometry refers to the relative availability of elements in ecosystems as both an influence upon and result of ecological interactions. Nutrient ratios have long been analyzed in primary producers, but their application to animals is more recent. Here, we summarize the ecological stoichiometry framework and highlight three key contexts in stream fish ecology: body stoichiometry...

1. Ecological stoichiometry is a conceptual framework that considers how the balance of energy and elements affects and is affected by organisms in the environment. This perspective has seen recent development primarily in marine and freshwater pelagic ecosystems but its widescale application to freshwater benthic ecosystems remains limited. 2. This paper briefly introduces the concept of ecolo...

Changes in slope aspect have important effects on the C, N and P nutrient contents stoichiometric characteristics of plants soils. As an forest type subtropical region, Pinus massoniana forests play role restoration development ecosystems. In this study, effect stoichiometry leaves soils four P. types (i.e., pure (PF), massoniana-Liquidambar formosana mixed (PLM), - Platycarya strobilacea (PPM)...

Ecologists are increasingly recognizing the importance of consumers in regulating ecosystem processes such as nutrient cycling. Ecologists have recently made considerable progress in understanding nutrient cycling and trophic interactions in pelagic systems by application of a new concept, ecological stoichiometry, to consumer-driven processes. In this paper we synthesize these conceptual advan...

Marine bacteria drive the biogeochemical processing of oceanic dissolved organic carbon (DOC), a 750-Tg C reservoir that is a critical component of the global C cycle. Catabolism of DOC is thought to be regulated by the biomass composition of heterotrophic bacteria, as cells maintain a C:N:P ratio of ∼50:10:1 during DOC processing. Yet a complicating factor in stoichiometry-based analyses is th...

Abstract Nitrogen enrichment is pervasive in forest ecosystems, but its influence on understory plant communities and their stoichiometric characteristics poorly understood. We hypothesize that when enriched with nitrogen (N), the of species explain changes diversity. A 13‐year field experiment was conducted to explore effects N addition foliar carbon (C): N: phosphorus (P) stoichiometry, richn...

introduction:nitrate entrance to water bodies can cause eutrophication and decrease quality of them, furthermore it can effect on human health so concentration of nitrate must be at defined standard level. there are several methods for reduction or removal of nitrate in water such as ion exchange, reverse osmosis, electrodialysis and denitrification. microbial denitrification of nitrate in anox...

Abstract Aims As the determinant of water availability in drylands, groundwater plays a fundamental role regulating vegetation distribution and ecosystem processes. Although considerable progress has been made over past years relationship between environment stress plant community-level traits, potential influence induced by changes on stoichiometry remains largely unclear. Here, we examined wh...