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Cladistics (Greek: klados = branch) is a branch of biology that determines the evolutionary relationships between organisms based on derived similarities. It is the most prominent of several forms of phylogenetic systematics, which study the evolutionary relationships between organisms. Cladistics is a method of rigorous analysis, using "shared derived traits" (synapomorphies: see below) of the organisms being studied. Cladistic analysis forms the basis for most modern systems of biological classification, which seek to group organisms by evolutionary relationships. In contrast, phenetics groups organisms based on their overall similarity, while approaches that are more traditional tend to rely on key characters. Willi Hennig (1913 - 1976) is widely regarded as the founder of cladistics.
As the end result of a cladistic analysis, treelike relationship-diagrams called "cladograms" are drawn up to show different hypotheses of relationships. A cladistic analysis can be based on as much or as little information as the researcher selects. Modern systematic research is likely to be based on a wide variety of information, including DNA-sequences (so called "molecular data"), biochemical data and morphological data.
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Paleontology :: Earth Sciences
Someone just searched for ' Cladistics ', here are the top tweeters: http://tweettrail.com/search/Cladistics
TweetTrailBot (TweetTrailBot) Sun, 29 Nov 2009 21:55:00 -0000
Someone just searched for ' Cladistics ', here are the top tweeters: http://tweettrail.com/search/Cladistics
Karl Popper, objects as mnemonic devices, procedural logic systems, cladistics, landscape archaeology on a small scale - it doesn't fit.
lifeatblandings (Peter) Fri, 27 Nov 2009 07:32:03 -0000
Karl Popper, objects as mnemonic devices, procedural logic systems, cladistics, landscape archaeology on a small scale - it doesn't fit.
Updated Cladistics RSS feed on web site http://systbiol.org. Feed had gone stale (thanks to Pablo Goloboff for spotting this)
systbiol (Systematic Biology) Thu, 26 Nov 2009 21:28:36 -0000
Updated Cladistics RSS feed on web site http://systbiol.org. Feed had gone stale (thanks to Pablo Goloboff for spotting this)
Visually mapping avian flu may help H1N1 *New Cladistics article* http://tr.im/FEhO in the news http://tr.im/FEhf #H1N1 #swineflu #avianflu
Darwin2009 (Darwin Evolution) Tue, 24 Nov 2009 09:47:21 -0000
Visually mapping avian flu may help H1N1 *New Cladistics article* http://tr.im/FEhO in the news http://tr.im/FEhf #H1N1 #swineflu #avianflu
@AshRenee_ what's cladistics??
HELIUM02 (marquise fuqua) Tue, 24 Nov 2009 05:22:31 -0000
@AshRenee_ what's cladistics??
if anybody ever had DRUM 4 bio, kno how i feel about this cladistics project...#FML..anybody wana help?!..due 2morro so im up til its done:(
AshRenee_ (Ashley Moore) Tue, 24 Nov 2009 05:19:15 -0000
if anybody ever had DRUM 4 bio, kno how i feel about this cladistics project...#FML..anybody wana help?!..due 2morro so im up til its done:(
Introduction to Cladistics - Cladistics is a particular method of hypothesizing relationships among organisms based on the idea that members of a group share a common evolutionary history.
Phylogenetics Methodology - Introduction to various phylogenetic statistical methodologies.
Understanding Cladistics - Short introduction from the American Museum of Natural History.
Meta Description: [ The American Museum of Natural History is one of the world's preeminent institutions for scientific research and education, with collections of more than 32 million specimens and artifacts., The American Museum of Natural History is one of the world's preeminent institutions for scientific resear... ]
What is Cladistics? - The methods and terminology of phylogenetic systematics explained by the magazine Fossil News.
Meta Description: [ The methods and terminology of phylogenetic systematics explained. ]
Willi Hennig Society - Society of scientists studying cladistics.
| Cladistics generally discourage paraphyletic groups | |
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