USGS: Science Topics: nutrient cycling

Science Topics

Nutrient cycling

The exchange of elements or compounds essential for the nourishment of organisms in an ecosystem.

Subtopics:
Food web (3 items)

Related topics:

Results 1 - 5 of 5 listed by similarity [list alphabetically]

Nutrient dynamics and biochemical cycling [New Window]: Briefly describes research efforts to better understand nutrient dynamics and biogeochemical cycling in ecosystems and how these properties are altered by large-scale human activities.
Bryophytes and lichens, small but indispensable forest dwellers [New Window]: Description of bryophytes (mosses, liverworts, and hornworts) and lichens (dual organisms of a fungus and an alga or a cyanobacterium) that are part of forest ecosystems in the Pacific Northwest with information on habitat and conservation.
Fisheries projects, Alaska Science Center [New Window]: Homepage with links to Alaska research projects on fisheries by species: salmon, trout, Pacific halibut, forage fish, other fish species, and aquatic invertebrates.
Potential effects of anthropogenic greenhouse gases on avian habitats and populations in the Northern Great Plains [New Window]: Report on effects of the increase of atmospheric carbon dioxide on plants and animals, especially birds, in the Great Plains including effects of carbon dioxide fertilization, ultraviolet radiation, climate change, and harmful effects on bird habitats.
Recent changes in the food web of Lake Erie - the role of phosphorus and zebra mussels [New Window]: Brief overview of the proliferation of zebra mussels and the role of phosphorus in Lake Erie with links to publications related to Lake Erie water quality.

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U.S. Department of the Interior | U.S. Geological Survey
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