22 research outputs found
Emergence of heterogeneity and political organization in information exchange networks
We present a simple model of the emergence of the division of labor and the
development of a system of resource subsidy from an agent-based model of
directed resource production with variable degrees of trust between the agents.
The model has three distinct phases, corresponding to different forms of
societal organization: disconnected (independent agents), homogeneous
cooperative (collective state), and inhomogeneous cooperative (collective state
with a leader). Our results indicate that such levels of organization arise
generically as a collective effect from interacting agent dynamics, and may
have applications in a variety of systems including social insects and
microbial communities.Comment: 10 pages, 6 figure
Assessment of a Metaviromic Dataset Generated from Nearshore Lake Michigan
Bacteriophages are powerful ecosystem engineers. They drive bacterial mortality rates and genetic diversity, and affect microbially mediated biogeochemical processes on a global scale. This has been demonstrated in marine environments; however, phage communities have been less studied in freshwaters, despite representing a potentially more diverse environment. Lake Michigan is one of the largest bodies of freshwater on the planet, yet to date the diversity of its phages has yet to be examined. Here, we present a composite survey of viral ecology in the nearshore waters of Lake Michigan. Sequence analysis was performed using a web server previously used to analyse similar data. Our results revealed a diverse community of DNA phages, largely comprising the order Caudovirales. Within the scope of the current study, the Lake Michigan virome demonstrates a distinct community. Although several phages appeared to hold dominance, further examination highlighted the importance of interrogating metagenomic data at the genome level. We present our study as baseline information for further examination of the ecology of the lake. In the current study we discuss our results and highlight issues of data analysis which may be important for freshwater studies particularly, in light of the complexities associated with examining phage ecology generall
Proceedings of the Thirteenth International Society of Sports Nutrition (ISSN) Conference and Expo
Meeting Abstracts: Proceedings of the Thirteenth International Society of Sports Nutrition (ISSN) Conference and Expo Clearwater Beach, FL, USA. 9-11 June 201