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Ecosystems
The interacting populations of plants, animals, and microorganisms occupying a certain area, and their relationship to the environment.
Subtopics:
Aquatic ecosystems (132 items)
Terrestrial ecosystems (100 items)
Wetland ecosystems (34 items)
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Results 91 - 100 of 264 listed by similarity [list alphabetically]
PDF Detecting Evidence of Climate Change in the Forests of the Eastern United States [More info]
The relation between seasonal forest change and weather is being tracked and analyzed by comparing precise field observations to regional patterns shown in long-term satellite imagery.
Diatoms: applications [More info]
Use of diatoms in biostratigraphy, coastal and estuarine studies, paleoceanology, paleoliminology, earthquake studies, environmental quality and forensic studies. Includes listing of USGS diatom projects and links to other diatom websites.
Duckdata: a bibliographic data base of North American waterfowl (Anatidae) and their wetland habitat [More info]
Comprehensive bibliography on the ecology, conservation, and management of North American waterfowl and their wetland habitats. Facilitates searching or downloading as *.zip files and use with ProCite utility.
Earthshots, satellite images of environmental change [More info]
Satellite images of geographic areas of interest, cities, deserts, glaciers, geologic features, disaster areas, water bodies, and wildlife linked with articles, maps, and other images such as AVHRR, photographs, and special project images.
Ecological National Synthesis Project [More info]
National-scale perspective and assessments on aquatic ecology, and the chemical and physical factors that affect aquatic conditions and health.
PDF Effects of brush management on the hydrologic budget and water quality in and adjacent to Honey Creek State Natural Area, Comal County, Texas, 2001--10 [More info]
Comparison of water in two adjacent watersheds before and after implementing a brush management strategy in one of the watersheds helps us see what water resource characteristics are sensitive to brush management and how.
PDF Effects of Ocean Acidification and Sea-Level Rise on Coral Reefs [More info]
By measuring the current and historical growth rates of coral skeletons, and using field experiments, we intend to find out whether rising atmospheric CO2 and rising sea levels will cause coral reefs to erode and cease to function.
PDF Effects of wastewater on forested wetlands [More info]
Study of the effects of the practice of cycling municipal nutrient-enriched wastewater from holding ponds through forested wetlands. Studies were in the Cypiere Perdue Swamp, Louisiana, and the Drummond Bog, Wisconsin.
PDF Environmental investigations using diatom microfossils [More info]
Explains use of diatom assemblages in understanding the history of coastal wetlands.
PDF Environmental Monitoring and Assessment Program Western Pilot Project - Conditions of North Dakota Perennial Streams for Water Chemistry and Mercury in Fish Tissue, 2000-2003 [More info]
Sixty-five sampling sites, selected by a statistical design to represent lengths of perennial streams in North Dakota, were chosen to be sampled for water chemistry and mercury in fish tissue to establish unbiased baseline data.
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