While invertebrate communities in catchments < 100 ha in size had largely recovered to pre-harvest characteristics within 8 years of harvest, recovery was slower in some larger catchment sites.
For 2000, the population in the 8 FoodNet catchment sites was 30,500,000 persons, thus representing 10.8% of the U.S. population at that time (6 ).
Method Cross-sectional surveys of all residents aged 65 or over (n = 15 021) in 11 catchment sites in 7 countries (China, India, Cuba, Dominican Republic, Venezuela, Mexico and Peru) were carried out as part of the 10/66 collaboration.
Table 1 presents correlation coefficients based on time- series regression analyses of Ae. vexans at two Pequest River catchment sites: Bernaski, for which there was 1 year of mosquito collection data; and Youngs Island, for which there were 10 years of collection data.
Hierarchical cluster analysis revealed all sites could be grouped into three clusters representing different levels of pollution: relatively less polluted upper catchments sites (US), medium polluted Middle catchments sites (MS), and highly polluted lower catchments sites (LS).
The relationship between catchment and site scale % agricultural lands, water quality and macroinvertebrate indices were evaluated using univariate and multivariate approaches.
The drainage network of a boreal catchment (66 sites) in northern Sweden, with subcatchment sizes 0.11 78 km2, was sampled in August 2002.
Catchment area sites were selected purposively, middle-class or high-income areas were avoided.
Our eight urban and five rural catchment area sites encompassed wide variation in age distributions, prevailing economic circumstances, levels of education, and pension and health insurance coverage.
This suggests long-term persistence of the site catchment criteria applied at Kabazi Mountain, and an important role for base camps in the Crimean Middle Paleolithic perception of landscape.
