Definitions for cladistics
kləˈdɪs tɪkscladis·tics

Princeton's WordNetRate this definition:2.0 / 1 vote

1. cladistics, cladistic analysisnoun

   a system of biological taxonomy based on the quantitative analysis of comparative data and used to reconstruct cladograms summarizing the (assumed) phylogenetic relations and evolutionary history of groups of organisms

WiktionaryRate this definition:0.0 / 0 votes

1. cladisticsnoun

   An approach to biological systematics in which organisms are grouped based upon synapomorphies (shared derived characteristics) only, and not upon symplesiomorphies (shared ancestral characteristics).

WikipediaRate this definition:0.0 / 0 votes

1. Cladistics

   Cladistics (; from Ancient Greek κλάδος (kládos) 'branch') is an approach to biological classification in which organisms are categorized in groups ("clades") based on hypotheses of most recent common ancestry. The evidence for hypothesized relationships is typically shared derived characteristics (synapomorphies) that are not present in more distant groups and ancestors. However, from an empirical perspective, common ancestors are inferences based on a cladistic hypothesis of relationships of taxa whose character states can be observed. Theoretically, a last common ancestor and all its descendants constitute a (minimal) clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if the terms worms or fishes were used within a strict cladistic framework, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a 'grade', which are fruitless to precisely delineate, especially when including extinct species. Radiation results in the generation of new subclades by bifurcation, but in practice sexual hybridization may blur very closely related groupings.As a hypothesis, a clade can only be rejected if some groupings were explicitly excluded. It may then be found that the excluded group did actually descend from the last common ancestor of the group, and thus emerged within the group. ("Evolved from" is misleading, because in cladistics all descendants stay in the ancestral group). Upon finding that the group is paraphyletic this way, either such excluded groups should be granted to the clade, or the group should be abolished.Branches down to the divergence to the next significant (e.g. extant) sister are considered stem-groupings of the clade, but in principle each level stands on its own, to be assigned a unique name. For a fully bifurcated tree, adding a group to a tree also adds an additional (named) clade, and potentially a new level. Specifically, also extinct groups are always put on a side-branch, not distinguishing whether an actual ancestor of other groupings was found. The techniques and nomenclature of cladistics have been applied to disciplines other than biology. (See phylogenetic nomenclature.) Cladistics findings are posing a difficulty for taxonomy, where the rank and (genus-)naming of established groupings may turn out to be inconsistent.

ChatGPTRate this definition:0.0 / 0 votes

1. cladistics

   Cladistics is a method of classification in biology, which groups organisms based on their common descent and evolutionary characteristics. It involves the creation of a branching diagram or 'cladogram' that illustrates the relationship between various species. This method prioritizes evolutionarily-derived relationships over similarities based on shared characteristics. It aims to map out and analyze the hierarchical branching patterns of evolutionary connection and divergence. This approach is used in fields such as botany, zoology, and paleontology.

WikidataRate this definition:5.0 / 1 vote

1. Cladistics

   Cladistics is an approach to biological classification in which items are grouped together based on whether or not they have one or more shared unique characteristics that come from the group's last common ancestor and are not present in more distant ancestors. Therefore, members of the same group are thought to share a common history and are considered to be more closely related. The original method for cladistic analysis and the school of taxonomy derived from it originated in the work of the German entomologist Willi Hennig, who referred to it as "phylogenetic systematics"; the use of the terms "cladistics" and "clade" was popularized by other researchers. The techniques and sometimes the names have been successfully applied in other disciplines: for example, to determine the relationships between the surviving manuscripts of the Canterbury Tales, or also between 53 manuscripts of the Sanskrit Charaka Samhita.

How to pronounce cladistics?

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Numerology

1. Chaldean Numerology

   The numerical value of cladistics in Chaldean Numerology is: 8

2. Pythagorean Numerology

   The numerical value of cladistics in Pythagorean Numerology is: 9

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=cladistics
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Cladistics
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Cladistics
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=cladistics