Pathogens’ Exploitation of the Intestinal Food Web

Antagonistic selection from predators and pathogens alters food-web structure.

Selection can alter predator-prey interactions. However, whether and how complex food-webs respond to selection remain largely unknown. We show in the field that antagonistic selection from predators and pathogens on prey body-size can be a primary driver of food-web functioning. In Windermere, U.K., pike (Esox lucius, the predator) selected against small perch (Perca fluviatilis, the prey), wh...

Knowledge Exploitation from the Web

In the framework of Knowledge Management, the Internet can be a valuable source of information to produce new Knowledge. Here, an ontologybased web search system to ease the enterprise managers in the process of discovering new knowledge from the documents in the Internet is introduced. By means of a graphical user interface, the user of the system supplies an ontology in RDF to describe the do...

Intestinal Microbiota in the Control of Pathogens

The intestinal mucosa contains innumerable species of commensal microorganisms, at equilibrium end up preventing the persistence of or even eliminating pathogenic microorganisms. The manner by which the intestinal microbiota eliminates pathogenic microorganisms has been extensively studied by diverse researchers throughout the world. This is mainly due to the fact that the indiscriminate use of...

Resource patch formation and exploitation throughout the marine microbial food web.

Exploitation of microscale (microm-mm) resource patches by planktonic microorganisms may influence oceanic trophodynamics and nutrient cycling. However, examinations of microbial behavior within patchy microhabitats have been precluded by methodological limitations. We developed a microfluidic device to generate microscale resource patches at environmentally realistic spatiotemporal scales, and...

Food-borne Pathogens