orthogenetic definition of orthogenetic in the Free Online Encyclopedia.

orthogenesis [‚ȯr·thə′jen·ə·səs]

(evolution)

A unidirectional evolutionary change among a related group of animals.

Orthogenesis

the hypothesis that evolution proceeds directly toward higher adaptive states.

Orthogenesis is rooted in the views of J. B. Lamarck. The German scientists W. Haacke, who introduced the term “orthogenesis,” and G. H. T. Eimer, who used this term extensively, proceeded from the mechanistic Lamarckian position that the direction of evolution is controlled by the immediate influence of the environment and that the internal organization of an individual can change only in certain set directions. Subsequently, “orthogenesis” was often used to describe evolution as being controlled by an internal driving force as well as by the immediate influence of the environment.

Modern evolutionary theory, according to which the direction of evolution is a result of natural selection, usually contradicts the concept of orthogenesis. Although linearity is a feature of evolutionary change, modern theory attributes it to limitations imposed on the structural features of the organism; linearity essentially is the result of natural selection in past generations. (See AUTOGENESIS, LAMARCKISM.)

REFERENCES

Simpson, G. G. Tempy i formy evoliutsii. Moscow, 1948. (Translated from English.)
Shmal’gauzen, I. I. Problemy darvinizma, 2nd ed. Leningrad, 1969.
Haacke, W. Gestaltung und Vererbung, Leipzig, 1893.
Eimer, G. H. T. Die Entstehung der Arten. part 2: Die Orthogenesis der Schmetterlinge. Leipzig, 1897.

A. V. IABLOKOV

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No references found	Wapner (1993) describes a holistic, developmental, systems-oriented perspective of parent development that is exemplified by the orthogenetic principle which, proceeds from an undifferentiated to a differentiated state, and a new level of organization. Transitions within fathering by Palkovitz, Rob; Palm, Glen / Fathering The orthogenetic implications are obvious, however the "force" that is driving the evolutionary change is not intrinsic or "vital" but extrinsic--originating from the structure of the Ecosystem it's self. Ecosystems as superorganisms: the neglected evolutionary implications by Woodley, Michael A. / Frontier Perspectives There is little point in reviewing the content of the already-published essays, especially since the orthogenetic interpretive framework deployed in them looks increasingly antique, as do the bias against rhetoric and in favor of "science," the bloody-minded quest for "reality" beneath the texts, the construction of "traditions" (complete with assessment of points for "contributions") and so forth. Literacy and Its Uses: Studies on Late Medieval Italy by Mayer, Thomas F. / Renaissance Quarterly	Orthocenter orthocephaly orthoceratite orthochem orthochromatic Orthochromatic Materials orthochronology Orthoclase orthoclase feldspar orthoconglomerate orthocumulate Orthod orthodolomite Orthodontics orthodox Orthodox Church Orthodox Eastern Church Orthodox Judaism Orthodoxy Orthodrome orthodromic projection Orthoepy Orthoester orthoferrosilite Orthogenesis orthogenetic Orthogeosyncline orthognathic Orthognathism Orthognathous Occlusion Orthogneiss orthogonal orthogonal antennas orthogonal basis orthogonal complement orthogonal crystal orthogonal family orthogonal functions orthogonal group orthogonal instruction set orthogonal Latin squares orthogonal lines Orthogonal Matrix orthogonal parity check Orthogonal Polynomial orthogonal polynomials Orthogonal Projection orthogonal series orthogonal spaces orthogonal sum orthogonal system	Orthodromics Orthodromy Orthoepeia Orthoepeia Orthoepia Orthoepia orthoepic orthoepic orthoepical orthoepical orthoepist orthoepist orthoepists orthoepists orthoepy orthoepy Orthoester orthoferrosilite orthogamy Orthoganal Orthoganal orthogenesis orthogenesis orthogenesis orthogenesist orthogenesist orthogenesist orthogenesists orthogenesists orthogenesists orthogenetic Orthogenetic evolution Orthogenetic evolution Orthogenetic evolution orthogenetically orthogenetically orthogenetically orthogenic orthogenic orthogenic evolution Orthogenisis Orthogenisis Orthogenisis Orthogeosyncline Orthogeosyncline Orthognatha orthognathia orthognathic orthognathic orthognathic Orthognathic surgery Orthognathic surgery Orthognathic surgery orthognathics Orthognathism Orthognathism Orthognathous Orthognathous Orthognathous Occlusion orthogneiss Orthogon

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Wapner (1993) describes a holistic, developmental, systems-oriented perspective of parent development that is exemplified by the orthogenetic principle which, proceeds from an undifferentiated to a differentiated state, and a new level of organization.

Transitions within fathering by Palkovitz, Rob; Palm, Glen / Fathering

The orthogenetic implications are obvious, however the "force" that is driving the evolutionary change is not intrinsic or "vital" but extrinsic--originating from the structure of the Ecosystem it's self.

Ecosystems as superorganisms: the neglected evolutionary implications by Woodley, Michael A. / Frontier Perspectives

There is little point in reviewing the content of the already-published essays, especially since the orthogenetic interpretive framework deployed in them looks increasingly antique, as do the bias against rhetoric and in favor of "science," the bloody-minded quest for "reality" beneath the texts, the construction of "traditions" (complete with assessment of points for "contributions") and so forth.

Literacy and Its Uses: Studies on Late Medieval Italy by Mayer, Thomas F. / Renaissance Quarterly

Orthogenesis (redirected from orthogenetic)

REFERENCES

Orthogenesis
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