Cladogenesis

Cladogenesis is an evolutionary splitting event in a species in which each branch and its smaller branches forms a "clade", an evolutionary mechanism and a process of adaptive evolution that leads to the development of a greater variety of sister species. This event usually occurs when a few organisms end up in new, often distant areas or when environmental changes cause several extinctions, opening up ecological niches for the survivors. An example of cladogenesis today is the Hawaiian archipelago, to which stray organisms traveled across the ocean via ocean currents and winds. Most of the species on the islands are not found anywhere else on Earth due to evolutionary divergence.

Cladogenesis is often contrasted with anagenesis, in which gradual changes in an ancestral species lead to its eventual "replacement" by a novel form (i.e., there is no "splitting" of the phylogenetic tree).

See also

Evolutionary biology portal

• Evolutionary biology

References

• Korotayev, Andrey (2004). World Religions and Social Evolution of the Old World Oikumene Civilizations: A Cross-cultural Perspective (First Edition ed.). Lewiston, New York: Edwin Mellen Press. ISBN 0-7734-6310-0.  (on the applicability of this notion to the study of social evolution).

This evolution-related article is a stub. You can help Wikipedia by expanding it.v · Categories: Evolutionary biology Phylogenetics Evolution stubs Wikimedia Foundation. 2010. Игры ⚽ Нужно сделать НИР? Battle of Ferrybridge Game Over (TV series) Look at other dictionaries: cladogenesis — cladogenesis. См. кладогенез. (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) …   Молекулярная биология и генетика. Толковый словарь. Cladogénesis — La cladogénesis es un suceso de bifurcación evolutiva en el que cada rama y sus ramas maś pequeñas son un clado ; un mecanismo evolutivo y un proceso de evolución adaptativa que conduce hacia el desarrollo de una mayor variedad de organismos. La… …   Wikipedia Español cladogenesis — noun Date: 1953 evolutionary change characterized by treelike branching of taxa compare anagenesis • cladogenetic adjective • cladogenetically adverb …   New Collegiate Dictionary cladogenesis — the development of a new clade; the splitting of a single lineage into two distinct lineages; speciation …   Dictionary of ichthyology cladogenesis — n. [Gr. klados, branch; genesis, beginning] Branching evolution; the splitting of species, i.e., speciation; see anagenesis …   Dictionary of invertebrate zoology cladogenesis — cladogenetic /klad oh jeuh net ik, klay doh /, adj. cladogenetically, adv. /klad euh jen euh sis, klay deuh /, n. Biol. evolutionary change by the branching off of new species from common ancestral types. [1950 55; < G Kladogenese; see CLADO ,… …   Universalium cladogenesis — noun An evolutionary splitting event in which each branch and its smaller branches forms a clade …   Wiktionary cladogenesis — origin and evolution as if branching from common ancestor Causation and Formation …   Phrontistery dictionary cladogenesis — n. evolution that occurs in response to the specific environmental demands on a species in a particular area (Biology) …   English contemporary dictionary cladogenesis — [ˌkleɪdə(ʊ) dʒɛnɪsɪs, kladə(ʊ) ] noun Biology the formation of a new species by evolutionary divergence from an ancestral form. Derivatives cladogenetic adjective …   English new terms dictionary 18+ © Academic, 2000-2025 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”