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ecosystem
(Encyclopedia) ecosystem: see ecology.Paine, Robert Treat, 3d
(Encyclopedia) Paine, Robert Treat, 3d, 1933–2016, American ecologist, b. Cambridge, Mass., Ph.D. Univ. of Michigan, 1961. He was on the faculty of the Univ. of Washington from 1962 to 1998. Paine's…ecology
(Encyclopedia) ecology, study of the relationships of organisms to their physical environment and to one another. The study of an individual organism or a single species is termed autecology; the…defoliant
(Encyclopedia) defoliant, any one of several chemical compounds that, when applied to plants, can alter their metabolism, causing the leaves to drop off. In agriculture defoliants are used to…Great Southern Reef
(Encyclopedia) Great Southern Reef, rocky reef complex, c. 27,000 sq mi (70,000 sq km), extending almost 5,000 mi (8,100 km) along S and SW Australia coast, from Brisbane to Perth. The reef's…Joshua Tree National Park
(Encyclopedia) Joshua Tree National Park, 1,022,703 acres (414,050 hectares), S California. Lying between the high Mojave Desert and the low Colorado Desert, this park has a unique ecosystem in which…geodesic dome
(Encyclopedia) CE5 Geodesic dome geodesic domegeodesic domejēˌədĕsˈĭk, –dēˈsĭk [key], structure that roughly approximates a hemisphere. Popular in recent years as economical, easily erected…Craters of the Moon National Monument and Preserve
(Encyclopedia) Craters of the Moon National Monument and Preserve, S central Idaho; est. 1924. The monument (53,438 acres/21,625 hectares) lies at the north end of the much larger preserve (698,940…Pine Barrens
(Encyclopedia) Pine Barrens, coastal plain region, c.3,000 sq mi (7,770 sq km), S and SE N.J.; composed chiefly of sandy soils, swamp-edged streams, pine stands, and tracts of cranberries and…Odum, Eugene Pleasants
(Encyclopedia) Odum, Eugene Pleasants, 1913–2002, American ecologist, b. Newport, N.H., Ph.D. Univ. of Illinois, 1939; son of Howard W. Odum. He joined the department of zoology at the Univ. of…