Biomes — LLMpedia

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Biomes Biomes are large-scale ecological units defined by characteristic climates, soils, vegetation and animal communities that interact across landscapes and continents; they underpin studies in Charles Darwin-inspired natural history, Alexander von Humboldt-style biogeography and modern Intergovernmental Panel on Climate Change assessments. Researchers from institutions such as the Smithsonian Institution, Natural History Museum, London, Woods Hole Oceanographic Institution and Royal Society employ biome concepts in comparative studies alongside projects like the International Geosphere-Biosphere Programme and datasets used by the United Nations Environment Programme and Convention on Biological Diversity.

Overview and Definition

A biome is a broad ecological classification defined by dominant plant forms, prevailing climate regimes and recurring disturbance patterns recognized in work by Vladimir Vernadsky, Alfred Russel Wallace and later synthesized by Frederic Clements and Eugene Odum. Modern definitions integrate remote sensing from Landsat and MODIS with field inventories conducted by organizations such as the Global Biodiversity Information Facility, linking regional studies like those at the Congo Basin, Amazon Rainforest, Sahara Desert and Great Barrier Reef to continental syntheses used by the Intergovernmental Panel on Climate Change and the Food and Agriculture Organization.

Classic biome schemes distinguish major categories—tropical rainforests, temperate forests, boreal forests (taiga), grasslands (praries, steppes), deserts, tundra, Mediterranean shrublands, wetlands, and aquatic biomes—building on maps from the United Nations and work by ecologists associated with the Ecological Society of America and International Union for Conservation of Nature. Contemporary classifications incorporate ecoregions from World Wildlife Fund's Global 200, biomes mapped by The Nature Conservancy and climate-envelope models used in studies by James Lovelock-influenced Earth system researchers and teams at NASA, NOAA and the European Space Agency.

Climatic drivers—temperature, precipitation and seasonality—interact with soil orders characterized in the International Union of Soil Sciences nomenclature and processes described by researchers at Soil Science Society of America and FAO to shape biome distributions; these processes are central to paleobiome reconstructions used by paleoclimatologists at Lamont–Doherty Earth Observatory and Paleobiology Database studies. Biogeochemical cycles studied by teams at Scripps Institution of Oceanography, Max Planck Institute for Biogeochemistry and Lawrence Berkeley National Laboratory link photosynthesis, decomposition and fire regimes to carbon budgets assessed by the Global Carbon Project and climate feedbacks in IPCC reports.

Species in each biome exhibit morphological, physiological and behavioral adaptations explored in monographs from the Royal Botanic Gardens, Kew, expedition reports from the British Museum (Natural History), and field guides used by researchers at the California Academy of Sciences and Field Museum; examples include drought tolerance in succulent plants studied by the Missouri Botanical Garden, cold-hardiness in boreal conifers researched at University of Alaska Fairbanks, salt tolerance in mangroves investigated by teams at James Cook University, and migratory strategies of birds tracked by BirdLife International. Evolutionary work by labs at Harvard University, University of Oxford, Stanford University and the Max Planck Institute for Evolutionary Anthropology links trait evolution within biomes to broader patterns documented in the Encyclopedia of Life and GBIF occurrence datasets.

Human land use, fragmentation and climate change driven by emissions tracked by International Energy Agency and policy frameworks such as the Paris Agreement modify biome extent and function; conservation planning by IUCN, The Nature Conservancy, Conservation International and national agencies like the US Fish and Wildlife Service and Environment Agency (England) aims to protect representative ecoregions and threatened species listed on the IUCN Red List. Restoration initiatives from River Restoration Centre projects, rewilding proposals advocated by Rewilding Europe, and payments for ecosystem services piloted by the World Bank and UNEP attempt to reconcile agriculture promoted by Food and Agriculture Organization programs with biodiversity goals of the Convention on Biological Diversity.

Biomes occur across continents and oceans with iconic examples including the Amazon Rainforest and Congo Basin tropical forests, the Siberian taiga boreal belt, the North American Great Plains and Eurasian Steppe grasslands, the Sahara Desert and Atacama Desert, the Mediterranean-type ecosystems of California and the Mediterranean Basin, alpine zones of the Himalayas and Andes, and marine biomes such as the Coral Triangle, Great Barrier Reef and Sargasso Sea; these regions are subjects of long-term monitoring by networks like NEON and collaborative programs at CIAT and CIFOR. Conservation hotspots identified by Myers et al. and mapped by initiatives at WWF and IUCN guide priorities for transboundary protected areas such as Peace Parks Foundation projects, Ramsar wetlands designated under the Ramsar Convention, and UNESCO Biosphere Reserves established through the Man and the Biosphere Programme.