| 词条 | Karl Kessler |
| 释义 |
Karl Fedorovich Kessler (19 November 1815 – 3 March 1881) was a German-Russian zoologist and author of zoological taxa signed Kessler,[1] who was mostly active in Kiev, Ukraine and conducted most of his studies of birds in Ukrainian regions of the Russian Empire - Kiev Governorate, Volyn Governorate, Kherson Governorate, Poltava Governorate and Bessarabia. He also studied the fish of the Dniester, Dnieper, and Southern Bug rivers, and on the Ukrainian coast of the Black Sea. Kessler was one of the first zoologists to propose that mutual aid, rather than mutual struggle, was the main factor in the evolution of a species. The anarchist Peter Kropotkin later developed this theory in his book A Factor of Evolution. See also
References1. ^Karl Fedorovich Kessler {{Use dmy dates|date=May 2011}}{{Authority control}}{{DEFAULTSORT:Kessler, Karl Fedorovich}}{{zoologist-stub}} 13 : 1815 births|1881 deaths|19th-century Russian scientists|19th-century zoologists|Corresponding Members of the St Petersburg Academy of Sciences|Imperial Russian biologists|Evolutionary biologists|Imperial Russian people of German descent|Rectors of Saint Petersburg State University|Russian zoologists|Ukrainian ichthyologists|Ukrainian ornithologists|Ukrainian zoologists |
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