Human-induced nutrient input can change the selection regime and lead to the loss of biodiversity. For example, eutrophication caused speciation reversal in polymorphic whitefish populations through a flattening of littoral-pelagic selection gradients. We investigated the current state of phenotypic and genetic diversity in whitefish (Coregonus macrophthalmus) in a newly restored lake whose nut...

Returning crop straw into the soil is an important practice to balance biogenic and bioavailable silicon (Si) pool in paddy, which crucial for healthy growth of rice. However, owing little knowledge about microbial communities responsible degradation, how return affects Si bioavailability, its uptake, rice yield remains elusive. Herein, we investigate change fractions community a 39-year-old pa...

Bacterial endosymbionts of insects play a central role in upgrading the diet of their hosts. In certain cases, such as aphids and tsetse flies, endosymbionts complement the metabolic capacity of hosts living on nutrient-deficient diets, while the bacteria harbored by omnivorous carpenter ants are involved in nitrogen recycling. In this study, we describe the genome sequence and inferred metabol...

Phosphorus is a nutrient with finite and non-renewable sources, the speed of exploitation of which is currently far higher than the rates of return to its natural cycle. It is already being predicted that available and known sources will soon be exhausted, with serious and irreversible economic, social and environmental impacts. In this context, this study sets out to present information about ...

B acteria had been around long before multi-cellular eukaryotes evolved and quickly began to colonize these new life forms as another suitable habitat and potential source of nutrients. Nearly all higher organisms across taxa now have bacterial communities living on and within them—from mutually beneficial symbioses to antagonistic parasitic conflicts. They have co-evolved with their microbiota...

This study investigated the potential benefit of co-digesting sewage sludge (SS) and settled/mixed fat, oil, grease (FOG) with BioAmp pretreatment, a bio-additive product, for utility. was found to increase soluble chemical oxygen demand (SCOD)/COD ratio FOG (from 4.19 4.49), consequently enhancing volatile solid (VS) reduction 75.9 84.8%). The SS co-digestion based on their actual daily produc...

Disturbance and habitat destruction due to human activities is a pervasive problem in near-shore marine ecosystems, and restoration is often used to mitigate losses. A common metric used to evaluate the success of restoration is the return of ecosystem services. Previous research has shown that biodiversity, including genetic diversity, is positively associated with the provision of ecosystem s...

The nitrogen (N) biological cycle of the Suaeda salsa marsh ecosystem in the Yellow River estuary was studied during 2008 to 2009. Results showed that soil N had significant seasonal fluctuations and vertical distribution. The N/P ratio (15.73 +/- 1.77) of S. salsa was less than 16, indicating that plant growth was limited by both N and P. The N absorption coefficient of S. salsa was very low (...

Success of pig production depends on maximizing return over feed costs and addressing potential nutrient pollution to the environment. Mathematical modeling has been used to describe many important aspects of inputs and outputs of pork production. This study was undertaken to compare 4 mathematical functions for the best fit in terms of describing specific data sets on pig growth and, in a sepa...