Dictionary of Arguments


Philosophical and Scientific Issues in Dispute
 
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Disputed term/author/ism Author
Entry
Reference
Evolution Darwin Gould II 329
Darwin: 2 stages of evolution 1) Random range of variation (production of raw material)
2) Selection as a conventional force.
Gould II 331
The official definition of evolution/Gould: Def Evolution: "Change of gene frequencies in populations". (The process of random increase or decrease in the gene frequency is called
Def "genetic drift".)
The new theory of neutralism suggests that many, if not most, of the genes in individual populations owe their frequency primarily to chance.
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Mayr I 235
Darwin (early): change by adaption. - Vs: adaption can never explain the enormous diversity of organic life, because there is no increase in the number of species.
Mayr I 236
Darwin/Mayr: The Origin of Species: 5 Main Theories 1) Organisms are constantly evolving over time (evolution as such).
2) Different types of organisms are derived from a common ancestor.
3) Species multiply over time (speciation)
4) Evolution takes place in the form of gradual change. (GradualismVsSaltationism).
5) The evolutionary mechanism consists in the competition of subordinate unique individuals for limited resources that lead to differences in survival and reproduction (natural selection). >Selection.
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Gould IV 357
Evolution/Darwin: Thesis: no inner dynamics drives life forward! If the environment really did not change, it would not be impossible for evolution to come to a standstill crunchingly! Actually, the species lead their lives independently of each other! Their most important battles take place against climate, geological and geographical conditions. (>Species).


Gould I
Stephen Jay Gould
The Panda’s Thumb. More Reflections in Natural History, New York 1980
German Edition:
Der Daumen des Panda Frankfurt 2009

Gould II
Stephen Jay Gould
Hen’s Teeth and Horse’s Toes. Further Reflections in Natural History, New York 1983
German Edition:
Wie das Zebra zu seinen Streifen kommt Frankfurt 1991

Gould III
Stephen Jay Gould
Full House. The Spread of Excellence from Plato to Darwin, New York 1996
German Edition:
Illusion Fortschritt Frankfurt 2004

Gould IV
Stephen Jay Gould
The Flamingo’s Smile. Reflections in Natural History, New York 1985
German Edition:
Das Lächeln des Flamingos Basel 1989

Mayr I
Ernst Mayr
This is Biology, Cambridge/MA 1997
German Edition:
Das ist Biologie Heidelberg 1998
Evolution Mayr I 43
Evolution/Mayr: Unit of evolution is the population (or species) and not the gene or the individual. (MayrVsDawkins). >Species, >Genes, >R. Dawkins, >Genes/Dawkins, >Evolution/Dawkins.
Def Integron/Mayr: An integron is a system created by integration of subordinate units on a higher level. Integrons evolve by natural selection. They are adapted systems at each level because they contribute to the fitness (suitability) of an individual.
>Selection.
I 183
Evolution/Mayr: Species is the decisive entity of evolution.
I 230
Evolution/Progress/Mayr: Cohesion: an expression of the fact that the system of development has become very narrow.
Evolution: proceeds very slowly in large, member-rich species, and very quickly in small peripheral isolated groups.
>Speciation, >punctuated equilibrium/Eldredge/Gould.
A start-up population with few individuals and therefore little hidden genetic variation can more easily assume a different genotype.
Macroevolution: is most strongly determined by the geographical factor (isolation).
I 234
Evolution/Mayr: the concepts: 1) Rapid evolution: (transmutationism): type jump. Even after Darwin some researchers (including his friend Huxley) could not accept the concept of natural selection and developed saltationist theories.
2) Transformational evolution (transformationism) gradual change of the ice to the organism. Ignored by Darwin.
I 235
3) Variation Evolution (Darwin)
I 235
Darwin (early): adaptation modification. Vs: can never explain the enormous variety of organic life, because it does not allow for an increase in the number of species.
I 236
Darwin/Mayr: The Origin of Species: 5 Main Theories 1) Organisms are constantly evolving over time (evolution as such).
2) Different species of organisms are derived from a common ancestor.
3) Species multiply over time (speciation)
4) Evolution takes the form of gradual change. (GradualismVsSaltationism).
>Gradualism, >Saltationism.
5) The evolutionary mechanism consists in the competition among numerous unique individuals for limited resources that leads to differences in survival and reproduction (natural selection).
I 234
Evolution/Mayr: the concepts: 1) Rapid evolution: (transmutationism): type jump. Even after Darwin some researchers (including his friend Huxley) could not accept the concept of natural selection and developed saltationist theories.
2) Transformational evolution (transformationism) gradual change of the ice to the organism. Ignored by Darwin.
I 235
3) Variation Evolution (Darwin)
I 235
Darwin (early): adaptation modification. Vs: can never explain the enormous variety of organic life, because it does not allow for an increase in the number of species.
I 236
Darwin/Mayr: The Origin of Species: 5 Main Theories 1) Organisms are constantly evolving over time (evolution as such).
2) Different species of organisms are derived from a common ancestor.
3) Species multiply over time (speciation)
4) Evolution takes the form of gradual change. (GradualismVsSaltationism).
5) The evolutionary mechanism consists in the competition among numerous unique individuals for limited resources that leads to differences in survival and reproduction (natural selection).
>Selection.
I 377
Evolution of life: a chemical process involving autocatalysis and a directing factor. Prebiotic selection. Cf. >St. Kauffman.
I 237
Pasteur: proofed the impossibility of life in oxygen-rich atmosphere! In 1953, Stanley Miller grew amino acids, urea and other organic molecules in a glass flask by discharging electricity into a mixture of methane, ammonium, hydrogen, and water vapor.
I 238
Proteins, nucleic acids: the organisms must form these larger molecules themselves. Amino acids, pyrimidines, puridine do not need to formed by the organisms themselves.
I 239
Molecular biology: discovered that the genetic code is the same for bacteria, which do not have nuclei, as in protists, fungi, animals and plants.
I 240
Missing link: Archaeopteryx: half bird half reptile. Not necessarily direct ancestor. Speciation: a) dichopatric: a previously connected area is divided by a new barrier: mountain range, inlets, interruption of vegetation.
b) peripatrically: new start-up population emerges outside of the original distribution area.
c) sympatric speciation: new species due to ecological specialization within the area of ​​distribution.
Darwin's theory of gradualism.
>Gradualism.
I 243
VsGardualism: cannot explain the emergence of completely new organs. Problem: How can a rudimentary wing be enlarged by natural selection before it is suitable for flying?
I 244
Darwin: two possible solutions: a) Intensification of the function: E.g. eyes, e.g. the development of the anterior limbs of moles, whales, bats.
b) Functional change: E.g. Antennae of daphia (water flea): additional function of the swimming paddle, which is enlarged and modified under selection pressure.
E.g. Gould: Feathers probably first for temperature control before any animal could fly.
Function/Biology: Functional differences are also related to behavioral patterns, e.g. feather cleaning.
Competing theories on evolutionary change
I 247
Salationism: Huxley later Bateson, de Vries, (Mendelists). The saltationist emergence of new species only occurs poyploidy and some other forms of chromosomal restructuring (very rare) during sexual reproduction. Teleological theories: assume that nature has a principle: Osbron's arsitogenesis, Chardin's omega principle. Should lead to perfection.
>Teilhard de Chardin.
Lamarck's Theories: Changes go back to use and non-use, environmental conditions. Until the 1930s!
I 248
Def "soft inheritance" (acquired characteristics). Was refuted by genetics. Def "hard inheritance" (so-called "central dogma"): the information contained in the proteins (the phenotype) cannot be passed on to the nucleic acids (the genotype)! (Insight of molecular biology).
I 256
Macroevolution: after saltationism, soft heredity and autogenesis, had been refuted with evolution, macroevolution had to be explained more and more as a phenomenon on the level of the population, i.e. as a phenomenon directly attributable to events and processes during microevolution. (Speciation: faster in isolation). (>Gould, Eldredge, 1971(1): "punctuated equilibrium", punctualism.)
I 281
New: we know today that the cycles of herbivores elicit those of the predators and not vice versa! Coevolution: E.g. the Yucca moth destroys the plant's ovules by its larvae, but pollens the flowers.

1. N. Eldredge, S. J. Gould: Punctuated equilibria: an alternative to phyletic gradualism. In: T. Schopf (Ed), Models in Paleobiology, 82-115, San Francisco, (1972).

Mayr I
Ernst Mayr
This is Biology, Cambridge/MA 1997
German Edition:
Das ist Biologie Heidelberg 1998



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