Environment Browse - Page 6

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diversity is key to a healthy ecosystem, whether it’s a small biological community or the global biosphere. Ecology, which studies the relationships between organisms and their environment, is an invaluable science that helps us understand what allows an ecological community to thrive.</div> </div> <a class="link-white font-weight-bold d-inline-block mt-30" href="/browse/Environment">Back To Environment Page</a> </div> </div> <div class="container mt-30"> <h2 class="label my-30">Environment Encyclopedia Articles By Title</h2> <div class="grid top g-10 mb-40"> <div class="col-33 col-sm-20 col-md-16 col-lg-10"> <div class="border shadow p-10 text-center "> <a class="font-weight-bold font-14 " href="/browse/Environment/1">-CHI</a> </div> </div> <div class="col-33 col-sm-20 col-md-16 col-lg-10"> <div class="border shadow p-10 text-center "> <a class="font-weight-bold font-14 " href="/browse/Environment/2">CHI-FLI</a> </div> </div> <div class="col-33 col-sm-20 col-md-16 col-lg-10"> <div class="border shadow p-10 text-center "> <a class="font-weight-bold font-14 " href="/browse/Environment/3">FLO-JEW</a> </div> </div> <div class="col-33 col-sm-20 col-md-16 col-lg-10"> <div class="border shadow p-10 text-center "> <a class="font-weight-bold font-14 " href="/browse/Environment/4">JOH-NER</a> </div> </div> <div class="col-33 col-sm-20 col-md-16 col-lg-10"> <div class="border shadow p-10 text-center "> <a class="font-weight-bold font-14 " href="/browse/Environment/5">NEU-SEA</a> </div> </div> <div class="col-33 col-sm-20 col-md-16 col-lg-10"> <div class="border shadow p-10 text-center bg-orange"> <a class="font-weight-bold font-14 link-white pe-none" href="/browse/Environment/6">SEC-WAT</a> </div> </div> <div class="col-33 col-sm-20 col-md-16 col-lg-10"> <div class="border shadow p-10 text-center "> <a class="font-weight-bold font-14 " href="/browse/Environment/7">WAT-ØVR</a> </div> </div> </div> <div class="grid g-20"> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/secondary-succession" class="font-weight-bold font-16"><invertedtitle>secondary succession</invertedtitle></a> <div class="font-serif mt-10 font-14"> secondary succession, type of ecological succession (the evolution of a biological community’s ecological structure)...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/sedimentary-facies" class="font-weight-bold font-16"><invertedtitle>sedimentary facies</invertedtitle></a> <div class="font-serif mt-10 font-14"> sedimentary facies, physical, chemical, and biological aspects of a sedimentary bed and the lateral change within...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Selous-Game-Reserve" class="font-weight-bold font-16"><invertedtitle>Selous Game Reserve</invertedtitle></a> <div class="font-serif mt-10 font-14"> Selous Game Reserve, huge game reserve, southeastern Tanzania. It is named after Frederick Selous, a naturalist,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Sequoia-National-Park" class="font-weight-bold font-16"><invertedtitle>Sequoia National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Sequoia National Park, forested area of 629 square miles (1,629 square km) in the Sierra Nevada, east-central California,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Serengeti-National-Park" class="font-weight-bold font-16"><invertedtitle>Serengeti National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Serengeti National Park, national park and wildlife refuge on the Serengeti Plain in north-central Tanzania. It...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/sertao" class="font-weight-bold font-16"><invertedtitle>sertão</invertedtitle></a> <div class="font-serif mt-10 font-14"> sertão, (Portuguese: “backwoods,” or “bush”), dry interior region of northeastern Brazil that is largely covered...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/shadow-biosphere" class="font-weight-bold font-16"><invertedtitle>shadow biosphere</invertedtitle></a> <div class="font-serif mt-10 font-14"> shadow biosphere, hypothetical life-supporting system on Earth, consisting of microorganisms of unique or unusual...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/Victor-Ernest-Shelford" class="font-weight-bold font-16"><invertedtitle>Shelford, Victor Ernest</invertedtitle></a> <div class="font-serif mt-10 font-14"> Victor Ernest Shelford was an American zoologist and animal ecologist whose pioneering studies of animal communities...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Shenandoah-National-Park" class="font-weight-bold font-16"><invertedtitle>Shenandoah National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Shenandoah National Park, preserve of 311 square miles (805 square km) in the Blue Ridge section of the Appalachian...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/Vandana-Shiva" class="font-weight-bold font-16"><invertedtitle>Shiva, Vandana</invertedtitle></a> <div class="font-serif mt-10 font-14"> Vandana Shiva is an Indian physicist and social activist. Shiva founded the Research Foundation for Science, Technology,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Sibley-Provincial-Park" class="font-weight-bold font-16"><invertedtitle>Sibley Provincial Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Sibley Provincial Park, park, southwestern Ontario, Canada, on Sibley Peninsula on the northern shore of Lake Superior,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/topic/Sierra-Club" class="font-weight-bold font-16"><invertedtitle>Sierra Club</invertedtitle></a> <div class="font-serif mt-10 font-14"> Sierra Club, American organization that promotes environmental conservation. Its headquarters are in Oakland, California....... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/Hammerskjoeld-Simwinga" class="font-weight-bold font-16"><invertedtitle>Simwinga, Hammerskjoeld</invertedtitle></a> <div class="font-serif mt-10 font-14"> Hammerskjoeld Simwinga is a Zambian environmentalist who helped fight wildlife poaching in Zambia by creating new...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/Peter-Singer" class="font-weight-bold font-16"><invertedtitle>Singer, Peter</invertedtitle></a> <div class="font-serif mt-10 font-14"> Peter Singer is an Australian ethical and political philosopher best known for his work in bioethics and his role...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/slick" class="font-weight-bold font-16"><invertedtitle>slick</invertedtitle></a> <div class="font-serif mt-10 font-14"> slick, glassy patch or streak on a relatively undisturbed ocean or lake surface, formed where surface tension is...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/Slushball-Earth-hypothesis" class="font-weight-bold font-16"><invertedtitle>Slushball Earth hypothesis</invertedtitle></a> <div class="font-serif mt-10 font-14"> Slushball Earth hypothesis, in geology and climatology, a counter-premise to the “Snowball Earth” hypothesis. The...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/topic/Smithsonian-Tropical-Research-Institute" class="font-weight-bold font-16"><invertedtitle>Smithsonian Tropical Research Institute</invertedtitle></a> <div class="font-serif mt-10 font-14"> Smithsonian Tropical Research Institute (STRI), a collection of scientific facilities in Panama that is primarily...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/smog" class="font-weight-bold font-16"><invertedtitle>smog</invertedtitle></a> <div class="font-serif mt-10 font-14"> smog, community-wide polluted air. Its composition is variable. The term is derived from the words smoke and fog,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/snow-line-topography" class="font-weight-bold font-16"><invertedtitle>snow line</invertedtitle></a> <div class="font-serif mt-10 font-14"> snow line, the lower topographic limit of permanent snow cover. The snow line is an irregular line located along...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/Snowball-Earth-hypothesis" class="font-weight-bold font-16"><invertedtitle>Snowball Earth hypothesis</invertedtitle></a> <div class="font-serif mt-10 font-14"> Snowball Earth hypothesis, in geology and climatology, an explanation first proposed by American geobiologist J.L....... </div> </div> </div> </div> <div class="col-100"> <span class="adm-1"></span> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/soil-organism" class="font-weight-bold font-16"><invertedtitle>soil organism</invertedtitle></a> <div class="font-serif mt-10 font-14"> soil organism, any organism inhabiting the soil during part or all of its life. Soil organisms, which range in...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/soil-seed-bank" class="font-weight-bold font-16"><invertedtitle>soil seed bank</invertedtitle></a> <div class="font-serif mt-10 font-14"> soil seed bank, natural storage of seeds in the leaf litter, on the soil surface, or in the soil of many ecosystems,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/South-Spitsbergen-National-Park" class="font-weight-bold font-16"><invertedtitle>South Spitsbergen National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> South Spitsbergen National Park, national park and bird sanctuary established by Norway in 1973 in the southern...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Southeast-Svalbard-Nature-Reservation" class="font-weight-bold font-16"><invertedtitle>Southeast Svalbard Nature Reservation</invertedtitle></a> <div class="font-serif mt-10 font-14"> Southeast Svalbard Nature Reservation, nature reserve established in 1973 by Norway. One of several protected areas...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/species-abundance" class="font-weight-bold font-16"><invertedtitle>species abundance</invertedtitle></a> <div class="font-serif mt-10 font-14"> species abundance, typically, the sum total of individuals from a given species within a given area. A species...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/species-richness" class="font-weight-bold font-16"><invertedtitle>species richness</invertedtitle></a> <div class="font-serif mt-10 font-14"> species richness, the count, or total number, of unique species within a given biological community, ecosystem,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/spring-season" class="font-weight-bold font-16"><invertedtitle>spring</invertedtitle></a> <div class="font-serif mt-10 font-14"> spring, in climatology, season of the year between winter and summer during which temperatures gradually rise....... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/Jill-Stein" class="font-weight-bold font-16"><invertedtitle>Stein, Jill</invertedtitle></a> <div class="font-serif mt-10 font-14"> Jill Stein is a former practicing physician and an environmental activist who has run as the candidate of the Green...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/steppe-grassland" class="font-weight-bold font-16"><invertedtitle>steppe</invertedtitle></a> <div class="font-serif mt-10 font-14"> steppe, vast grassland, devoid of trees and with little diversity in vegetation, receiving around 25 to 30 cm (10...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/money/Tom-Steyer" class="font-weight-bold font-16"><invertedtitle>Steyer, Tom</invertedtitle></a> <div class="font-serif mt-10 font-14"> Tom Steyer is an American business executive and philanthropist who founded (1986) Farallon Capital Management...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Stora-Sjofallet-National-Park" class="font-weight-bold font-16"><invertedtitle>Stora Sjöfallet National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Stora Sjöfallet National Park, national park in northwestern Sweden. The park was established in 1909 and is located...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/Raman-Sukumar" class="font-weight-bold font-16"><invertedtitle>Sukumar, Raman</invertedtitle></a> <div class="font-serif mt-10 font-14"> Raman Sukumar is an Indian ecologist best known for his work on the behaviour of Asian elephants and how their...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/sulfur-cycle" class="font-weight-bold font-16"><invertedtitle>sulfur cycle</invertedtitle></a> <div class="font-serif mt-10 font-14"> sulfur cycle, circulation of sulfur in various forms through nature. Sulfur occurs in all living matter as a component...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/summer-season" class="font-weight-bold font-16"><invertedtitle>summer</invertedtitle></a> <div class="font-serif mt-10 font-14"> summer, warmest season of the year, between spring and autumn. In the Northern Hemisphere, it is usually defined...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Sundarbans-National-Park" class="font-weight-bold font-16"><invertedtitle>Sundarbans National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Sundarbans National Park, large natural area in extreme southeastern West Bengal state, northeastern India. The...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Sunset-Crater-Volcano-National-Monument" class="font-weight-bold font-16"><invertedtitle>Sunset Crater Volcano National Monument</invertedtitle></a> <div class="font-serif mt-10 font-14"> Sunset Crater Volcano National Monument, geologic formation in north-central Arizona, U.S. The monument lies 15...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/survivorship-curve" class="font-weight-bold font-16"><invertedtitle>survivorship curve</invertedtitle></a> <div class="font-serif mt-10 font-14"> survivorship curve, graphic representation of the number of individuals in a population that can be expected to...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/sustainability" class="font-weight-bold font-16"><invertedtitle>sustainability</invertedtitle></a> <div class="font-serif mt-10 font-14"> sustainability, the long-term viability of a community, set of social institutions, or societal practice. In general,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/David-Suzuki" class="font-weight-bold font-16"><invertedtitle>Suzuki, David</invertedtitle></a> <div class="font-serif mt-10 font-14"> David Suzuki is a Canadian scientist, television personality, author, and environmental activist who is known for...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/M-S-Swaminathan" class="font-weight-bold font-16"><invertedtitle>Swaminathan, M.S.</invertedtitle></a> <div class="font-serif mt-10 font-14"> M.S. Swaminathan was an Indian geneticist and international administrator, renowned for his leading role in India’s...... </div> </div> </div> </div> <div class="col-100"> <span class="adm-2"></span> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Swiss-National-Park" class="font-weight-bold font-16"><invertedtitle>Swiss National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Swiss National Park, national park in Graubünden canton, southeastern Switzerland, adjoining the Italian border...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/symbiosis" class="font-weight-bold font-16"><invertedtitle>symbiosis</invertedtitle></a> <div class="font-serif mt-10 font-14"> symbiosis, any of several living arrangements between members of two different species, including mutualism, commensalism,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/syntrophism" class="font-weight-bold font-16"><invertedtitle>syntrophism</invertedtitle></a> <div class="font-serif mt-10 font-14"> syntrophism, mutual dependence of different types of organisms for the satisfaction of their respective nutritional...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/systems-ecology" class="font-weight-bold font-16"><invertedtitle>systems ecology</invertedtitle></a> <div class="font-serif mt-10 font-14"> systems ecology, Branch of ecosystem ecology (the study of energy budgets, biogeochemical cycles, and feeding and...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Tablas-de-Daimiel-National-Park" class="font-weight-bold font-16"><invertedtitle>Tablas de Daimiel National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Tablas de Daimiel National Park, nature reserve and wetland ecosystem, located about 19 miles (30 km) northeast...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Tadoba-National-Park" class="font-weight-bold font-16"><invertedtitle>Tadoba National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Tadoba National Park, national park in eastern Maharashtra state, western India. Extending over an area of 45 square...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/taiga" class="font-weight-bold font-16"><invertedtitle>taiga</invertedtitle></a> <div class="font-serif mt-10 font-14"> taiga, biome (major life zone) of vegetation composed primarily of cone-bearing needle-leaved or scale-leaved evergreen...... </div> <ul class="mt-10 font-14 pl-20 mb-0"> <li class="mb-3"> <a href="/science/taiga/Introduction" style="text-decoration: underline">Introduction</a> </li> <li class="mb-3"> <a href="/science/taiga/Environmental-conditions" style="text-decoration: underline">Climate, Biodiversity, Coniferous</a> </li> <li class="mb-3"> <a href="/science/taiga/Trees" style="text-decoration: underline">Coniferous, Boreal, Evergreen</a> </li> <li class="mb-3"> <a href="/science/taiga/Mammals" style="text-decoration: underline">Mammals, Bears, Wolves</a> </li> <li class="mb-3"> <a href="/science/taiga/Insects" style="text-decoration: underline">Insects, Biodiversity, Ecosystems</a> </li> <li class="mb-3"> <a href="/science/taiga/Community-structure" style="text-decoration: underline">Boreal Forest, Ecology, Species</a> </li> <li class="mb-3"> <a href="/science/taiga/Biological-productivity" style="text-decoration: underline">Biodiversity, Coniferous, Evergreen</a> </li> </ul> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Tatshenshini-Alsek-Wilderness-Provincial-Park" class="font-weight-bold font-16"><invertedtitle>Tatshenshini-Alsek Wilderness Provincial Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Tatshenshini-Alsek Wilderness Provincial Park, wilderness park, extreme northwestern British Columbia, Canada,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Parc-National-de-Tai" class="font-weight-bold font-16"><invertedtitle>Taï, Parc National de</invertedtitle></a> <div class="font-serif mt-10 font-14"> Parc National de Taï, national park, southwestern Côte d’Ivoire (Ivory Coast), situated between the Liberian border...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/temperate-forest" class="font-weight-bold font-16"><invertedtitle>temperate forest</invertedtitle></a> <div class="font-serif mt-10 font-14"> temperate forest, vegetation type with a more or less continuous canopy of broad-leaved trees. Such forests occur...... </div> <ul class="mt-10 font-14 pl-20 mb-0"> <li class="mb-3"> <a href="/science/temperate-forest/Introduction" style="text-decoration: underline">Introduction</a> </li> <li class="mb-3"> <a href="/science/temperate-forest/Environment" style="text-decoration: underline">Biodiversity, Climate, Ecosystems</a> </li> <li class="mb-3"> <a href="/science/temperate-forest/Flora" style="text-decoration: underline">Deciduous Trees, Conifers, Evergreen</a> </li> <li class="mb-3"> <a href="/science/temperate-forest/Fauna" style="text-decoration: underline">Mammals, Birds, Reptiles</a> </li> <li class="mb-3"> <a href="/science/temperate-forest/Population-and-community-development-and-structure" style="text-decoration: underline">Biodiversity, Ecosystems, Flora/Fauna</a> </li> <li class="mb-3"> <a href="/science/temperate-forest/Biological-productivity" style="text-decoration: underline">Biodiversity, Productivity, Ecosystems</a> </li> </ul> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/temperate-rainforest" class="font-weight-bold font-16"><invertedtitle>temperate rainforest</invertedtitle></a> <div class="font-serif mt-10 font-14"> temperate rainforest, in ecology, a biome dominated by a mix of broad-leaved or coniferous trees that occurs in...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/territory-ecology" class="font-weight-bold font-16"><invertedtitle>territory</invertedtitle></a> <div class="font-serif mt-10 font-14"> territory, in ecology, any area defended by an organism or a group of similar organisms for such purposes as mating,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/topic/The-Darwin-Lincoln-Double-Bicentennial-2222484" class="font-weight-bold font-16"><invertedtitle>The Darwin-Lincoln Double Bicentennial</invertedtitle></a> <div class="font-serif mt-10 font-14"> Abraham Lincoln and Charles Darwin, two of the 19th century’s most enduring thinkers and figures, share more than...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/topic/The-six-criteria-air-pollutants" class="font-weight-bold font-16"><invertedtitle>The six criteria air pollutants</invertedtitle></a> <div class="font-serif mt-10 font-14"> Empowered by the Clean Air Act of 1970, the U.S. Environmental Protection Agency (EPA) quickly established air...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/thermal-heat-recovery" class="font-weight-bold font-16"><invertedtitle>thermal-heat recovery</invertedtitle></a> <div class="font-serif mt-10 font-14"> thermal-heat recovery, use of heat energy that is released from some industrial processes and that would otherwise...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/topic/Thomas-Malthus-on-population-1987927" class="font-weight-bold font-16"><invertedtitle>Thomas Malthus on population</invertedtitle></a> <div class="font-serif mt-10 font-14"> Thomas Robert Malthus (1766–1834) demonstrated perfectly the propensity of each generation to overthrow the fondest...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/thorn-forest" class="font-weight-bold font-16"><invertedtitle>thorn forest</invertedtitle></a> <div class="font-serif mt-10 font-14"> thorn forest, dense scrublike vegetation characteristic of dry subtropical and warm temperate areas with a seasonal...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Thousand-Islands-National-Park" class="font-weight-bold font-16"><invertedtitle>Thousand Islands National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Thousand Islands National Park, national park covering an area of mainland, islands, and islets in southeastern...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/Greta-Thunberg" class="font-weight-bold font-16"><invertedtitle>Thunberg, Greta</invertedtitle></a> <div class="font-serif mt-10 font-14"> Greta Thunberg is a Swedish environmental activist who worked to address the problem of climate change, founding...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/timberline" class="font-weight-bold font-16"><invertedtitle>timberline</invertedtitle></a> <div class="font-serif mt-10 font-14"> timberline, upper limit of tree growth in mountainous regions or in high latitudes, as in the Arctic. Its location...... </div> </div> </div> </div> <div class="col-100"> <span class="adm-3"></span> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Timpanogos-Cave-National-Monument" class="font-weight-bold font-16"><invertedtitle>Timpanogos Cave National Monument</invertedtitle></a> <div class="font-serif mt-10 font-14"> Timpanogos Cave National Monument, limestone cave system in American Fork Canyon, north-central Utah, U.S. The...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Tongass-National-Forest" class="font-weight-bold font-16"><invertedtitle>Tongass National Forest</invertedtitle></a> <div class="font-serif mt-10 font-14"> Tongass National Forest, forest region and wilderness area in southeastern Alaska, U.S. It was established in 1907...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/toxic-waste" class="font-weight-bold font-16"><invertedtitle>toxic waste</invertedtitle></a> <div class="font-serif mt-10 font-14"> toxic waste, chemical waste material capable of causing death or injury to life. Waste is considered toxic if it...... </div> <ul class="mt-10 font-14 pl-20 mb-0"> <li class="mb-3"> <a href="/science/toxic-waste/Introduction" style="text-decoration: underline">Introduction</a> </li> <li class="mb-3"> <a href="/science/toxic-waste/Costs" style="text-decoration: underline">Pollution, Health, Costs</a> </li> </ul> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/tragedy-of-the-commons" class="font-weight-bold font-16"><invertedtitle>tragedy of the commons</invertedtitle></a> <div class="font-serif mt-10 font-14"> tragedy of the commons, concept highlighting the conflict between individual and collective rationality. The idea...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/trophic-cascade" class="font-weight-bold font-16"><invertedtitle>trophic cascade</invertedtitle></a> <div class="font-serif mt-10 font-14"> trophic cascade, an ecological phenomenon triggered by the addition or removal of top predators and involving reciprocal...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/trophic-level" class="font-weight-bold font-16"><invertedtitle>trophic level</invertedtitle></a> <div class="font-serif mt-10 font-14"> trophic level, step in a nutritive series, or food chain, of an ecosystem. The organisms of a chain are classified...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/trophic-pyramid" class="font-weight-bold font-16"><invertedtitle>trophic pyramid</invertedtitle></a> <div class="font-serif mt-10 font-14"> trophic pyramid, the basic structure of interaction in all biological communities characterized by the manner in...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/tropical-dry-forest" class="font-weight-bold font-16"><invertedtitle>tropical dry forest</invertedtitle></a> <div class="font-serif mt-10 font-14"> tropical dry forest, biome of any open woodland in tropical areas that have a long dry season followed by a season...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/tropical-rainforest" class="font-weight-bold font-16"><invertedtitle>tropical rainforest</invertedtitle></a> <div class="font-serif mt-10 font-14"> tropical rainforest, luxuriant forest found in wet tropical uplands and lowlands around the Equator. Tropical rainforests,...... </div> <ul class="mt-10 font-14 pl-20 mb-0"> <li class="mb-3"> <a href="/science/tropical-rainforest/Introduction" style="text-decoration: underline">Introduction</a> </li> <li class="mb-3"> <a href="/science/tropical-rainforest/Environment" style="text-decoration: underline">Biodiversity, Climate, Ecosystem</a> </li> <li class="mb-3"> <a href="/science/tropical-rainforest/Biota" style="text-decoration: underline">Biodiversity, Ecosystems, Flora</a> </li> <li class="mb-3"> <a href="/science/tropical-rainforest/Population-and-community-development-and-structure" style="text-decoration: underline">Biodiversity, Ecosystems, Canopy</a> </li> <li class="mb-3"> <a href="/science/tropical-rainforest/Relationships-between-the-flora-and-fauna" style="text-decoration: underline">Flora, Fauna, Relationships</a> </li> </ul> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Tsavo-National-Park" class="font-weight-bold font-16"><invertedtitle>Tsavo National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Tsavo National Park, national park, southeastern Kenya, east of Mount Kilimanjaro. The largest (8,036 square miles...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/tundra" class="font-weight-bold font-16"><invertedtitle>tundra</invertedtitle></a> <div class="font-serif mt-10 font-14"> tundra, a major zone of treeless level or rolling ground found in cold regions, mostly north of the Arctic Circle...... </div> <ul class="mt-10 font-14 pl-20 mb-0"> <li class="mb-3"> <a href="/science/tundra/Introduction" style="text-decoration: underline">Introduction</a> </li> <li class="mb-3"> <a href="/science/tundra/Environmental-conditions" style="text-decoration: underline">Arctic, Permafrost, Climate</a> </li> <li class="mb-3"> <a href="/science/tundra/The-biota-and-its-adaptations" style="text-decoration: underline">Arctic, Flora, Fauna</a> </li> <li class="mb-3"> <a href="/science/tundra/Animal-life" style="text-decoration: underline">Arctic Animals, Plants, Ecosystems</a> </li> <li class="mb-3"> <a href="/science/tundra/Biological-productivity" style="text-decoration: underline">Arctic, Low Vegetation, Permafrost</a> </li> <li class="mb-3"> <a href="/science/tundra/Effects-of-human-activities-and-climate-change" style="text-decoration: underline">Climate Change, Human Impact, Arctic</a> </li> </ul> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/Type-I-survivorship-curve" class="font-weight-bold font-16"><invertedtitle>Type I survivorship curve</invertedtitle></a> <div class="font-serif mt-10 font-14"> Type I survivorship curve, in ecology, a curve displayed on a semilogarithmic scale that tracks organisms that...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/Type-II-survivorship-curve" class="font-weight-bold font-16"><invertedtitle>Type II survivorship curve</invertedtitle></a> <div class="font-serif mt-10 font-14"> Type II survivorship curve, in ecology, a curve displayed on a semilogarithmic scale that tracks organisms whose...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Ujung-Kulon-National-Park" class="font-weight-bold font-16"><invertedtitle>Ujung Kulon National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Ujung Kulon National Park, national park on the island of Java, in the province of Banten, Indonesia. It is best...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Umfolozi-Game-Reserve" class="font-weight-bold font-16"><invertedtitle>Umfolozi Game Reserve</invertedtitle></a> <div class="font-serif mt-10 font-14"> Umfolozi Game Reserve, wild animal sanctuary in northern KwaZulu/Natal province, South Africa. The reserve lies...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/uMkhuze-Game-Reserve" class="font-weight-bold font-16"><invertedtitle>uMkhuze Game Reserve</invertedtitle></a> <div class="font-serif mt-10 font-14"> uMkhuze Game Reserve, park in northern KwaZulu-Natal province, South Africa. The park, established in 1912, lies...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/topic/UNESCO" class="font-weight-bold font-16"><invertedtitle>UNESCO</invertedtitle></a> <div class="font-serif mt-10 font-14"> UNESCO, specialized agency of the United Nations (UN) that was outlined in a constitution signed November 16, 1945....... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/event/United-Nations-Conference-on-Environment-and-Development" class="font-weight-bold font-16"><invertedtitle>United Nations Conference on Environment and Development</invertedtitle></a> <div class="font-serif mt-10 font-14"> United Nations Conference on Environment and Development (UNCED), conference held at Rio de Janeiro, Brazil (June...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/topic/United-Nations-Environment-Programme" class="font-weight-bold font-16"><invertedtitle>United Nations Environment Programme</invertedtitle></a> <div class="font-serif mt-10 font-14"> United Nations Environment Programme (UNEP), organization established in 1972 to guide and coordinate environmental...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/topic/United-Nations-Population-Fund" class="font-weight-bold font-16"><invertedtitle>United Nations Population Fund</invertedtitle></a> <div class="font-serif mt-10 font-14"> United Nations Population Fund (UNFPA), trust fund under the jurisdiction of the United Nations Development Programme...... </div> </div> </div> </div> <div class="col-100"> <span class="adm-4"></span> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Upemba-National-Park" class="font-weight-bold font-16"><invertedtitle>Upemba National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Upemba National Park, park in southeastern Congo (Kinshasa). It was created in 1939 and has an area of 4,529 square...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/urban-ecosystem" class="font-weight-bold font-16"><invertedtitle>urban ecosystem</invertedtitle></a> <div class="font-serif mt-10 font-14"> urban ecosystem, any ecological system located within a city or other densely settled area or, in a broader sense,...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Vanoise-National-Park" class="font-weight-bold font-16"><invertedtitle>Vanoise National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Vanoise National Park, nature reserve in Savoie département, Rhône-Alpes région, southeastern France. It is contiguous...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/biography/Nikolai-Vavilov" class="font-weight-bold font-16"><invertedtitle>Vavilov, Nikolai</invertedtitle></a> <div class="font-serif mt-10 font-14"> Nikolai Vavilov was a Soviet plant geneticist whose research into the origins of cultivated plants incurred the...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/science/veld" class="font-weight-bold font-16"><invertedtitle>veld</invertedtitle></a> <div class="font-serif mt-10 font-14"> veld, name given to various types of open country in Southern Africa that is used for pasturage and farmland. To...... </div> <ul class="mt-10 font-14 pl-20 mb-0"> <li class="mb-3"> <a href="/science/veld/Introduction" style="text-decoration: underline">Introduction</a> </li> <li class="mb-3"> <a href="/science/veld/Plant-life" style="text-decoration: underline">Grasses, Shrubs, Herbs</a> </li> </ul> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Virgin-Islands-Coral-Reef-National-Monument" class="font-weight-bold font-16"><invertedtitle>Virgin Islands Coral Reef National Monument</invertedtitle></a> <div class="font-serif mt-10 font-14"> Virgin Islands Coral Reef National Monument, natural marine area lying off the island of St. John in the United...... </div> </div> </div> </div> <div class="col-100 col-sm-33 col-md-25"> <div class="card h-100"> <div class="card-body"> <a href="/place/Virunga-National-Park" class="font-weight-bold font-16"><invertedtitle>Virunga National Park</invertedtitle></a> <div class="font-serif mt-10 font-14"> Virunga National Park, park in northeastern Democratic Republic of the Congo (Kinshasa). 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