The New York State Department of Health was asked in September 1978 of investigate a cluster of leukemias and lymphomas in a rural town in western New York State of less than 1,000 people. Four cases of these diseases had been diagnosed in the town's population in the previous 10 months. Residents were concerned about environmental hazards such as background radiation and contamination of their...

Historical data were used to reconstruct channel change in the Middle Fork John Day River, a tributary of the Columbia River. Human impacts on the channel from the 1800s to present include: beaver trapping, early alluvial gold mining, dredge mining, livestock grazing, haying and irrigation, railroad-building, road-building, and placing of bank stabilization structures. 1881 land survey records,...

Based on a cladistic biogeographic analysis of 6 species-level phylogenies of harvestman taxa, we searched for congruence in the historical relationships of 12 areas of endemism of the Brazilian Atlantic Rain Forest. We constructed general area cladograms using Primary Brooks Parsimony Analysis (BPA), BPA of nodes, and paralogy-free subtree analysis. These analyses resulted in 6 general area cl...

INTRODUCTION The Sacco Valley (Lazio, Italy) is characterized by high density population and several industrial chemical productions that during the time had led to a substantial amount of by-products. The result was a severe environmental pollution of the area and in particular of the river Sacco. In 1991, the analysis of water and soils samples of three industrial landfills revealed the prese...

Groundwater is closely coupled with stream­ flow to maintain water supply to riparian vegetation, parti­ cularly where precipitation is seasonal. A case study is presented where Mediterranean climate and groundwater extraction are linked with the decline of riparian vegeta­ tion and subsequent severe bank erosion on the Carmel River in Carmel Valley, California.

The results of the retrospective global radioactive contamination mapping of the Enisey-river catchment are presented. The maps of spatial , J 7 Cs distributions of 1964, 1974, 1986, 2000 are compiled using the geoinformation technologies in the Institute of Global Climate and Ecology. The territory of mapping is 2600000 km. The mapping is done from the airbome-gamma-spectrum data obtained at t...

We describe a new lizard species of the genus Potamites from the montane forests of the Cordillera de Vilcabamba (Cusco region) and Apurimac River valley (Ayacucho region), between 1500 and 2000 meters of elevation, in southern Peru. The new species is distinguishable from all other species of the genus mainly by having highly keeled scattered scales on dorsum and females lacking femoral pores.

Author Contacs: Timothy J. KRUPNIK, StudentResearcher with WARDA/ ADRAO and Ph.D. Candidate, Environmental Studies (Agroecology). University of California, Santa Cruz. Email: [email protected] and Dr. Makfousse SARR, National Coordinator of the Programme GIPD (FAO) for Senegal. [email protected] Current Research and Evaluation Efforts of the System of Rice Intensification in the Senegal Rive...