this paper argues that the geovisualization research should go beyond the development of geovisual analytic toolbox, and pay attention to supporting human work in broad activity scale. Future generations of virtual geographic environments are expected to be capable of monitoring and recognizing context changes, reasoning about implications, and adjusting its service behavior accordingly. This w...

Geosimulation aims at modeling systems at the scale of individuals and entity-level units of the built environment and provides a new way to simulate how geographic spaces can be used by their future users, particularly in urban environments. In the MAGS Project we are developing a generic software platform for the creation of Multi-Agent Geo-Simulations involving several thousand agents intera...

Escherichia coli and fecal coliform bacteria were isolated from five benthic and four pelagic fish species to determine their role in the fecal contamination of recreational waters. All fish were collected during fall 2006 from Southworth Marsh in the Duluth-Superior Harbor, a public beach that is commonly posted to minimize water contact due to high E. coli levels. Although fecal coliform bact...

The abundance and dispersion of pelagic waterbirds was measured on Lake Ontario during the aftermath of the storm system generated by Hurricane Isabel, September 2003. The purpose of this study was to determine whether standard shipboard methodologies developed for surveying pelagic seabirds from ships on the ocean are applicable on the Laurentian Great Lakes, and if so whether such surveys may...

Like many marine species with meroplanktonic larvae, the Caribbean spiny lobster (Panulirus argus) has a postlarval stage that moves from the oceanic plankton to inshore nurseries only under specific environmental conditions (i.e., at night, in the surface water layer, on the flood tide, and during new moon), presumably to avoid predation or to enhance onshore transport. Using field and mesocos...