The frequent occurrence of a pattern in a network, however, is not strictly correlated with a biological function. Network topologies reflect evolutionary origins and therefore the selection of ...

Ecologists are fascinated by the prevalence of nestedness in biogeographic and community data, where it is thought to promote biodiversity in mutualistic systems. Traditionally, nestedness has been ...

A meta-analysis of bacteria-virus infections reveals a nested structure, with hard-to-infect bacteria infected by generalist viruses and easy-to-infect bacteria attacked by generalist and specialist ...

A community is "nested" when species assemblages in less rich sites form nonrandom subsets of those at richer sites. Conventional null models used to test for statistically nonrandom nestedness are ...

Bacteria are common sources of infection, but these microorganisms can themselves be infected by even smaller agents: viruses. A new analysis of the interactions between bacteria and viruses has ...