Cynoglossum creticumin the North American Flora

The role of exotic species in homogenizing the North American flora.

Exotic species have begun to homogenize the global biota, yet few data are available to assess the extent of this process or factors that constrain its advance at global or continental scales. We evaluate homogenization of vascular plants across America north of Mexico by comparing similarity in the complete native and exotic floras between states and provinces of the USA and Canada. Compared w...

The ( North ) American English

The North American 701 Monitor

Although constrained by history, schedule, and hardware to triviality when compared to modem operating systems, the North American 701 Monitor was arguably the first operating system to be in operation. Installed in December 1955, the North American 701 Monitor was developed as a prototype monitor to extract more utilization from overburdened IBM 701'8 and pilot test the operating system concep...

Managing Cognitive Overload in the Flora of North America Project

The Flora of North America (FNA) is a large-scale collaboration involving over eight hundred scientists working together to create a 30-volume compendium of all naturally occurring plants in North America. The size and complexity of the project result in significant cognitive overload which comprises not just information or data but also work practices and activities. We view FNA as a distribut...

Evolution of geographical place and niche space: Patterns of diversification in the North American sedge (Cyperaceae) flora.

The role of geography and ecology in speciation are often discussed in the context of phylogenetic niche conservatism (PNC), the propensity of lineages to retain ancestral niche related traits. However, a recent paradigm shift focuses instead on measuring divergence of these traits in conjunction with patterns of speciation. Under this framework, we analyzed the diversification of North America...