Ferdinand Carl Valentin Haecker (15 September 1864 – 19 December 1927) was a German zoologist, reader at Freiburg University from 1892. In 1900, he became professor at the University of Applied Sciences Stuttgart and in 1909 at

Martin Luther University of Halle-Wittenberg Martin Luther University Halle-Wittenberg (), also referred to as MLU, is a public university, public research university in the cities of Halle, Saxony-Anhalt, Halle and Wittenberg. It is the largest and oldest university in the German State o ...

. He was president of the ''Deutsche Zoologische Gesellschaft'' from 1922. He died unexpectedly from a stroke. Haecker's contributions span the fields of ornithology,

plankton Plankton are the diverse collection of organisms that drift in Hydrosphere, water (or atmosphere, air) but are unable to actively propel themselves against ocean current, currents (or wind). The individual organisms constituting plankton are ca ...

(

Radiolaria The Radiolaria, also called Radiozoa, are unicellular eukaryotes of diameter 0.1–0.2 mm that produce intricate mineral skeletons, typically with a central capsule dividing the cell into the inner and outer portions of endoplasm and ect ...

) cell biology, developmental physiology,

genetics Genetics is the study of genes, genetic variation, and heredity in organisms.Hartl D, Jones E (2005) It is an important branch in biology because heredity is vital to organisms' evolution. Gregor Mendel, a Moravian Augustinians, Augustinian ...

(where he established the subfield of '' phenogenetics''). He also published a historical treatise on

Goethe Johann Wolfgang (von) Goethe (28 August 1749 – 22 March 1832) was a German polymath who is widely regarded as the most influential writer in the German language. His work has had a wide-ranging influence on Western literature, literary, Polit ...

's work on

morphology Morphology, from the Greek and meaning "study of shape", may refer to: Disciplines *Morphology (archaeology), study of the shapes or forms of artifacts *Morphology (astronomy), study of the shape of astronomical objects such as nebulae, galaxies, ...

.Goethes morphologische Arbeiten und die neuere Forschung, Jena 1927.

References

* Rudolf Haecker: Das Leben von Valentin Haecker. in: Zoologischer Anzeiger, Band 174, Heft 1/1965, pp. 1–14, * Georg Uschmann: Haecker, Ferdinand Carl Valentin. In:

Neue Deutsche Biographie (''NDB''; Literal translation, literally ''New German Biography'') is a Biography, biographical reference work. It is the successor to the ''Allgemeine Deutsche Biographie'' (ADB, Universal German Biography). The 27 volumes published thus far co ...

(NDB). Band 7, Duncker & Humblot, Berlin 1966, , 427 f. * Hans-Albrecht Freye: Valentin Haecker 1864 bis 1927. Leben und Werk. in: Hercynia, Band 2, Heft 3/1965, 326–337, * Haecker, Valentin Carl Ferdinand, in Jürgen Dietrich Kurt Kiefer: Bio-bibliographisches Handbuch der Akademie Gemeinnütziger Wissenschaften zu Erfurt. Akademie Gemeinnütziger Wissenschaften zu Erfurt, Erfurt 2005, , 234. {{DEFAULTSORT:Haecker, Valentin German geneticists 19th-century German zoologists 1864 births 1927 deaths 20th-century German zoologists