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The Anagenese (gr. Ana = up; genesis = origin), also known as phyletic evolution or transformation of species , indicating higher development or transformation of a taxon in the evolution without speciation. The associated accumulation of hereditary changes leads to the formation of new species .

In contrast to cladogenesis , anagenesis does not create sister species through species splitting ( divergence ), but only a transformation of one species takes place; in the case of chronospecies , a species later in time can emerge from one species. As a result, the number of species does not increase.

See also

Individual evidence

  1. Volker Storch , Ulrich Welsch : Short textbook of zoology. 8th, revised edition. Spektrum, Akad. Verlag, Munich 2005, ISBN 3-8274-1399-0 , p. 368.
  2. ^ NA Campbell, JB Reece, J. Markl (Eds.): Biology. 6th edition. Pearson Studium, Munich et al. 2006, ISBN 3-8273-7180-5 , pp. 545f.