Educational site about the 3 major biomes of the world, rainforest, desert and grassland.

Technical paper on the importance of biodiversity and mutualism (co-operation between different species) to ecosystem function and structural organization.

Constituted by the Ecological Society of America to support and facilitate the creation of standardized, scientifically credible North American vegetation type classification.

Information related to ecosystems in the Pacific and Yukon regions of Canada, including state of the environment reporting, environmental indicators, and programs and reports on ecosystem science, monitoring and research.

Photographs of plants, animals, and landscapes from dry tropical habitats in the Americas, Africa, Madagascar, and Asia. Dry tropical habitat types include tropical dry forest, tropical deciduous forest, thorn forest, spiny desert, savannah, cerrado, and caatinga.

Photographs by ecologist Len Webb depict a wide variety of native vegetation, fauna, landscapes, and soils, mainly in tropical and subtropical Northeastern Australia. Represents a wide range of ecosystem types.

Descriptions and images of the biomes of the world, freshwater ecosystems, and marine ecosystems. From the Missouri Botanical Garden.

Reports from international effort to inventory global ecosystems, their contribution to human development, and the effect of the ongoing degradation of ecosystem services on human well-being.

Maps, descriptions, and index to 687 ecoregions across the globe. Javascript required.

A long term old-field permanent-plot ecological succession study on the New Jersey Piedmont.

Online book about the current status and trends of the environment of the United States, aimed at public policy makers and concerned citizens.

Introduction to aquatic, desert, forest, grassland, and tundra biomes. School class project.

Covering five of the major world biomes.

Detailed descriptions and images of the world's ecoregions. Javascript required.