Post-Darwinian (book) Flashcards
especially promoted the exploring and interpreting of the history and diversification of life
Ernst Haeckel
golden age of paleontology, comparative morphology, and comparative embryology, during which a great deal of information on evolution in the fossil record and on relationships among organisms was amassed
late 19th century, early 20th century
Theories which rejected natural selection
- neo-Lamarckian
- orthogenesis
- mutationist theories
includes several theories based on the old idea of inheritance of modifications acquired during an organism’s lifetime
neo-Lamarckian
- held that the variation that arises is directed toward fixed goals, so that a species evolves in a predetermined direction by some kind of internal drive, without the aid of natural selection
- aka straight-line evolution
orthogenesis
advanced by some geneticists who observed that discretely different new phenotypes can arise by a process of mutation
mutationist theories
natural selection by mutationist theories
not necessary
accomplished geneticist who nevertheless erroneously argued that the origin of new species and higher taxa is entirely different from evolutionary change within species
Richard Goldschmidt
how did new species or genera originate according to Richard Goldschmidt
sudden, drastic changes that reorganize the whole genome
- includes the principles of natural selection, genetics, DNA, and biogeography
- do not speak to the origins of life, but rather scientists working in each field are trying to assess and understand the patterns of life
Evolutionary synthesis
adaptive evolution is caused by natural selection acting on particulate (Mendelian) genetic variation
- often used to mean the theory articulated in the evolutionary synthesis
neo-Darwinism
neo-Darwinism properly refers to __ strict version of Darwin’s theory of evolution by natural selection
Weismann
- developed a mathemetical theory of population genetics
- showed that mutatoin and natural selection together cause adaptive evolution
- mutation is not an alternative to natural selection, but is rather its raw material
- Ronald A. Fisher
- John B. S. Haldane
was pioneered in Russia by Sergei Chetverikov and continued by Theodosius Dobzhansky
study of genetic variation and change in natural populations
who pioneered and continued the study of genetic variation and change in natural populations
- Sergei Chetverikov
- Theodosius Dobzhansky
provided laboratory evidence for natural selection and variation where previously there had been only field observation
Theodosius Dobzhansky
Major causes of evolution within species
- mutation
- gene flow/ migration
- natural selection
- genetic drift
- defined as changes in the frequency of a gene in a population
- subtle changes that can occur in very short periods of time, and may not be visible to a casual observer.
Microevolution
refers to evolution of groups larger than an individual
Macroevolution
Major contributors to the synthesis
- Ernst Mayr
- Bernhard Rensch
- G. Ledyard Stebbins
- George Gaylord Simpson
Ernst Mayr
- Systematics
- Origin of Species
Berhard Rensch
Evolution Above the Species Level
G. Ledyard Stebbins
Variation and Evolution in Plants
George Gaylord Simpson
- Tempo and Mode in Evolution
- The Major Features of Evolution