Alexander Friedrich Michael Lebrecht Nikolaus Arthur Graf von Keyserling (15 August 1815 – 8 May 1891) was a

Baltic German Baltic Germans ( or , later ) are Germans, ethnic German inhabitants of the eastern shores of the Baltic Sea, in what today are Estonia and Latvia. Since Flight and expulsion of Germans (1944–1950), their resettlement in 1945 after the end ...

geologist A geologist is a scientist who studies the structure, composition, and History of Earth, history of Earth. Geologists incorporate techniques from physics, chemistry, biology, mathematics, and geography to perform research in the Field research, ...

and

paleontologist Paleontology, also spelled as palaeontology or palæontology, is the scientific study of the life of the past, mainly but not exclusively through the study of fossils. Paleontologists use fossils as a means to classify organisms, measure geolo ...

from the Keyserlingk family of

nobility.

Career

Alexander von Keyserling was born on at the Kabillen Manor, ,

Courland Governorate Courland Governorate, also known as the Province of Courland or Governorate of Kurland, and known from 1795 to 1796 as the Viceroyalty of Courland, was an administrative-territorial unit (''guberniya'') and one of the Baltic governorates of the ...

(in present-day Kabile,

Kuldīga Municipality Kuldīga Municipality () is a municipality in Courland, Latvia. The municipality was formed in 2009 by merging Ēdole parish, Gudenieki parish, Īvande parish, Kabile parish, Kurmāle parish, Laidi parish, Padure parish, Pelči parish, ...

Latvia Latvia, officially the Republic of Latvia, is a country in the Baltic region of Northern Europe. It is one of the three Baltic states, along with Estonia to the north and Lithuania to the south. It borders Russia to the east and Belarus to t ...

), then part of the

Russian Empire The Russian Empire was an empire that spanned most of northern Eurasia from its establishment in November 1721 until the proclamation of the Russian Republic in September 1917. At its height in the late 19th century, it covered about , roughl ...

. His father was Count Heinrich Diedrich Wilhelm von Keyserling, 3rd Count of Rautenburg, was a spokesman, and in Courland, his mother was Baroness Anna Amalie Benigna . His family was of

Westphalia Westphalia (; ; ) is a region of northwestern Germany and one of the three historic parts of the state of North Rhine-Westphalia. It has an area of and 7.9 million inhabitants. The territory of the region is almost identical with the h ...

n origin and was originated in

Herford Herford (; ) is a town in North Rhine-Westphalia, Germany, located in the lowlands between the hill chains of the Wiehen Hills and the Teutoburg Forest. It is situated in the cultural region of Ostwestfalen-Lippe (OWL) and the Detmold (administrat ...

, they were considered part of the ''

Uradel (, German: "ancient nobility"; adjective or ) is a genealogical term introduced in late 18th-century Germany to distinguish those families whose noble rank can be traced to the 14th century or earlier. The word stands opposed to '' Briefadel'' ...

'', or old nobility. The first ever mentioned member was Albert Keserlink (1443-1467 or 1468), the mayor of

. Alexander belonged to the ''House of Rautenburg- Telsen-Paddern'', which was a subdivided branch of the Prussian comital branch. The branch's founder Dietrich II von Keyserling, Herr auf und , was elevated to

count Count (feminine: countess) is a historical title of nobility in certain European countries, varying in relative status, generally of middling rank in the hierarchy of nobility. Pine, L. G. ''Titles: How the King Became His Majesty''. New York: ...

in 1786. Dietrich's father Heinrich Christian also inherited the title of ''Count of Rautenburg'', although Alexander didn't inherit the title since he was the 10th child in the family, his elder brother Otto Ulrich Johann inherited the title. Alexander studied at the

Humboldt University of Berlin The Humboldt University of Berlin (, abbreviated HU Berlin) is a public research university in the central borough of Mitte in Berlin, Germany. The university was established by Frederick William III on the initiative of Wilhelm von Humbol ...

, here he met with future German Chancellor

Otto von Bismarck Otto, Prince of Bismarck, Count of Bismarck-Schönhausen, Duke of Lauenburg (; born ''Otto Eduard Leopold von Bismarck''; 1 April 1815 – 30 July 1898) was a German statesman and diplomat who oversaw the unification of Germany and served as ...

and

John Lothrop Motley John Lothrop Motley (April 15, 1814 – May 29, 1877) was an American author and diplomat. As a popular historian, he is best known for his works on the Netherlands, the three volume work ''The Rise of the Dutch Republic'' and four volume ''His ...

, with whom he became lifelong friends. Alexander is considered to be one of the founders of Russian geology. He made many expeditions on behalf of

Nicholas I of Russia Nicholas I, group=pron (Russian language, Russian: Николай I Павлович; – ) was Emperor of Russia, List of rulers of Partitioned Poland#Kings of the Kingdom of Poland, King of Congress Poland, and Grand Duke of Finland from 18 ...

Estonia Estonia, officially the Republic of Estonia, is a country in Northern Europe. It is bordered to the north by the Gulf of Finland across from Finland, to the west by the Baltic Sea across from Sweden, to the south by Latvia, and to the east by Ru ...

, northern

Russia Russia, or the Russian Federation, is a country spanning Eastern Europe and North Asia. It is the list of countries and dependencies by area, largest country in the world, and extends across Time in Russia, eleven time zones, sharing Borders ...

, and the

Urals The Ural Mountains ( ),; , ; , or simply the Urals, are a mountain range in Eurasia that runs north–south mostly through Russia, from the coast of the Arctic Ocean to the river Ural (river), Ural and northwestern Kazakhstan.

(1839-1846). He was also a

botanist Botany, also called plant science, is the branch of natural science and biology studying plants, especially Plant anatomy, their anatomy, Plant taxonomy, taxonomy, and Plant ecology, ecology. A botanist or plant scientist is a scientist who s ...

and

zoologist Zoology ( , ) is the scientific study of animals. Its studies include the structure, embryology, classification, habits, and distribution of all animals, both living and extinct, and how they interact with their ecosystems. Zoology is one ...

who wrote ''Die wirbelthiere Europa's'' (''

Vertebrate Vertebrates () are animals with a vertebral column (backbone or spine), and a cranium, or skull. The vertebral column surrounds and protects the spinal cord, while the cranium protects the brain. The vertebrates make up the subphylum Vertebra ...

s of Europe'') with Johann Heinrich Blasius. This work was published in 1840. Alexander's nephews include diplomat Heinrich von Keyserlingk and writer Eduard von Keyserling. Archibald von Keyserling, the first leader of the Latvian Navy, was his brother Eduard Ernst Hermann von Keyserling's grandson. Philosopher Hermann von Keyserling was his grandson.

Evolution

Keyserling was an advocate of the

transmutation of species The Transmutation of species and transformism are 18th and early 19th-century ideas about the change of one species into another that preceded Charles Darwin's theory of evolution through natural selection. The French ''Transformisme'' was a ter ...

. In 1853, he wrote an article which suggested that species arose from the activity of "alien molecules" acting on the embryo. He believed that such molecules were transported by miasma.Rogers, James Allen (1973). "The Reception of Darwin's Origin of Species by Russian Scientists". ''

Isis Isis was a major goddess in ancient Egyptian religion whose worship spread throughout the Greco-Roman world. Isis was first mentioned in the Old Kingdom () as one of the main characters of the Osiris myth, in which she resurrects her sla ...

'' 64 (4): 484-503. In the third edition of ''

On the Origin of Species ''On the Origin of Species'' (or, more completely, ''On the Origin of Species by Means of Natural Selection, or the Preservation of Favoured Races in the Struggle for Life'')The book's full original title was ''On the Origin of Species by M ...

'' published in 1861,

Charles Darwin Charles Robert Darwin ( ; 12 February 1809 – 19 April 1882) was an English Natural history#Before 1900, naturalist, geologist, and biologist, widely known for his contributions to evolutionary biology. His proposition that all speci ...

added a ''Historical Sketch'' that acknowledged the ideas of Keyserling.Darwin C (1861). ''The Origin of Species''
Preface to the Third Edition. Darwin sent a copy of his book to Keyserling who was skeptical about the role of

natural selection Natural selection is the differential survival and reproduction of individuals due to differences in phenotype. It is a key mechanism of evolution, the change in the Heredity, heritable traits characteristic of a population over generation ...

in evolution. By 1886, however, he embraced most of Darwin's ideas claiming "I renounced my views which contradicted Darwin's theory, and I consider that the changes of the embryo arise not by means of external action of certain molecules but by the influence of selection and heredity."

Legacy

Keyserling is commemorated in the scientific name of a species of gecko, '' Teratoscincus keyserlingii''. Beolens, Bo; Watkins, Michael; Grayson, Michael (2011). ''The Eponym Dictionary of Reptiles''. Baltimore: Johns Hopkins University Press. xiii + 296 pp. . (Keyserling, p. 140).

References

Sources

* * (de) {{DEFAULTSORT:Keyserling, Alexander 1815 births 1891 deaths People from Kuldīga Municipality People from Talsi county Baltic-German nobility Baltic-German people from the Russian Empire Paleontologists from the Russian Empire Geologists from the Russian Empire 19th-century botanists from the Russian Empire Zoologists from the Russian Empire 19th-century explorers from the Russian Empire Proto-evolutionary biologists Humboldt University of Berlin alumni Corresponding members of the Saint Petersburg Academy of Sciences Honorary members of the Saint Petersburg Academy of Sciences Demidov Prize laureates Recipients of the Order of St. Vladimir, 2nd class Recipients of the Order of St. Vladimir, 4th class Recipients of the Order of St. Anna, 1st class Recipients of the Order of St. Anna, 3rd class Recipients of the Order of Saint Stanislaus (Russian), 1st class Recipients of the Order of Saint Stanislaus (Russian), 2nd class

Career

Evolution

Legacy

See also

References

Sources