Ringspecies, Semispecies, Superspecies

Raguž, Nikolina (2009) Ringspecies, Semispecies, Superspecies. Bachelor's thesis, Faculty of Science > Department of Biology.

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Abstract

The biological species concept defines a species as members of populations that actually or potentially interbreed in nature, not according to similarity of appearance. Although appearance is helpful in identifying species, it does not define species. Ringspecies, semispecies and superspecies are based on the discovered intermediate forms that are entered in systematic many doubts. They show that the reproductive isolation is difficult to determine and they emphasize geographic isolation as a way of speciation. A ringspecies is a situation in which two reproductively isolated forms are connected by a chain of intermediate populations. Semispecies show how detailed studies which were a bit far are important and that so far appointment of new species requires corrections. Also, they show possibility of forming new species from geographical races and the necessity of introducing new systematic categories. Superspecies show that it is sometimes necessary introduction of new concepts for easy categorization.

Item Type: Thesis (Bachelor's thesis)
Supervisor: Kučinić, Mladen
Date: 2009
Number of Pages: 15
Subjects: NATURAL SCIENCES > Biology
Divisions: Faculty of Science > Department of Biology
Depositing User: Silvana Šehić
Date Deposited: 22 Dec 2014 12:58
Last Modified: 22 Dec 2014 12:58
URI: http://digre.pmf.unizg.hr/id/eprint/3582

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