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Animal ecologist, biogeographer, author of first American book on animal ecology in 1913, founded ecological energetics [82] [83] Friedrich Ratzel: 1844–1904: German geographer who first coined the term biogeography in 1891. Frederic Clements: 1874–1945: Authored the first influential American ecology book in 1905 [84] Victor Ernest ...
MacArthur was a professor at the University of Pennsylvania, 1958–65, and professor of biology at Princeton University, 1965–72.He played an important role in the development of niche partitioning, and with E.O. Wilson he co-authored The Theory of Island Biogeography (1967), a work which changed the field of biogeography, drove community ecology and led to the development of modern ...
George Evelyn Hutchinson ForMemRS (January 30, 1903 – May 17, 1991) was a British ecologist sometimes described as the "father of modern ecology." [2] He contributed for more than sixty years to the fields of limnology, systems ecology, radiation ecology, entomology, genetics, biogeochemistry, a mathematical theory of population growth, art history, philosophy, religion, and anthropology. [3]
According to Ernst Mayr, professor of zoology at Harvard University, Darwin's most distinct contributions to evolutionary biology and ecology are as follows: "The first is the non-constancy of species, or the modern conception of evolution itself. The second is the notion of branching evolution, implying the common descent of all species of ...
Rand Aldo Leopold was born in Burlington, Iowa [4] on January 11, 1887. His father, Carl Leopold, was a businessman who made walnut desks and was first cousin to his wife, Clara Starker.
In historical ecology, the landscape is defined as an area of interaction between human culture and the non-human environment. The landscape is a perpetually changing, physical manifestation of history. [17] Historical ecology revises the notion of the ecosystem and replaces it with the landscape. While an ecosystem is static and cyclic, a ...
While at the University of Nebraska, he met Edith Gertrude Schwartz (1874–1971), also a botanist and ecologist, and they were married in 1899. [1] [5] In 1905 he was appointed full professor at the University of Nebraska, but left in 1907 to head the botany department at the University of Minnesota in Minneapolis.
Only 1 to 2 percent of the energy from the sun is absorbed by photosynthetic processes and converted into food. [1] When energy is transferred to higher trophic levels, on average only about 10% is used at each level to build biomass, becoming stored energy. The rest goes to metabolic processes such as growth, respiration, and reproduction. [2]