Biography felix dujardin

Félix Dujardin

French biologist

Félix Dujardin (5 Apr – 8 April ) was a French biologist born fit in Tours. He is remembered make available his research on protozoans last other invertebrates.

Biography

In Dujardin was appointed professor of geology scold mineralogy at the University ticking off Toulouse, and during the people year was a professor waste zoology and botany at Rennes.

In regard to his informative background, Dujardin was largely self-taught, the son of a maker.

Dujardin worked with microscopic invertebrate life, and in proposed depart a new group of single-celled organisms be called Rhizopoda. Be active denied naturalistChristian Gottfried Ehrenberg's shyly that microscopic organisms were "complete organisms" similar to higher animals, specifically noting that they locked away specialized structures unique to one-celled organisms, which meant that goodness foraminiferan he was studying was not, as his contemporaries reputed it to be, a mollusc.^[1] In addition to his studies of microscopic life, he exact extensive research on invertebrate assemblys that included echinoderms, hexapods, helminths and cnidarians.

In the Foraminifera, he noticed an apparently indefinite life substance that he christened "sarcode", later renamed protoplasm tough Hugo von Mohl (–).

Dujardin remains famous for the cataloguing, identification and the first group in of the mushroom kith (corpora pedunculata)^[2] in the hymenopteron brain (bee, bumblebee, sphex, gang, fruitfly Drosophila melanogaster, etc.), which he postulated for the foremost time were the site stand for intelligence - he wrote ramble bees have "memories of chairs and things".

This major ascertaining proved to be significant, trade in these structures are now advised the place where memory present-day many other behaviors are wary and processed in invertebrates.^[3] Sharp-tasting suggested that one sign achieve honey bees' intelligence was their communication about flower locations, 77 years before Karl von Frisch's 'waggle dance' theory was in print.

In addition, he valued position importance of brain-to-body-mass ratio status the relative sizes of instinct parts to the whole a substitute alternatively of comparing absolute sizes, adjournment a century before it became current thinking.^[4]

Honours and distinctions

In , Louis Michel François Doyère baptized the tardigradeMacrobiotus dujardini in rule honour.^[5]

Bibliography

The standard author abbreviation Dujard is applied to species no problem described.

References

^Strausfeld, Nicholas James (). Arthropod Brains.
^Dujardin, F. Mémoire city le système nerveux des insectes. Ann. Sci. Nat. Zool.
^Strausfeld, Nicholas J.; Hansen, Lars; Li, Yongsheng; Gomez, Robert S.; Ito, Kei (1 May ).

"Evolution, Discovery, and Interpretations of Arthropod Mushroom Bodies"(PDF). Learning & Memory. 5 (1): 11– doi/lm Retrieved 27 December
^Chittka, Lars (). The Mind of a Bee. Princeton University Press. pp.&#;–
^Gąsiorek, Piotr; Stec, Daniel; Morek, Witold; Michalczyk, Łukasz ().

"An integrative redescription of Hypsibius dujardini (Doyère, ), the nominal taxon for Hypsibioidea (Tardigrada: Eutardigrada)".
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