Clade (disambiguation)

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Clade is a phylogenetic group.

Clade may also refer to:

<i>Clade</i> (novel) science fiction novel

Clade is a science fiction novel written by Mark Budz, published in 2003. In Clade, an environmental disaster called the Ecocaust has caused sea levels to rise and causing additional strains on human resources. The government, in response, becomes more restrictive on human freedoms, and this novel explores what happens after the Ecocaust.

Emil Josef Clade was a Luftwaffe fighter ace in World War II, and figured in German civilian aviation after the war. Enlisting in the Luftwaffe in 1937, prior to World War II, Clade served throughout the war as a fighter pilot in the Western and African fronts. Clade is credited with either 26 or 27 aircraft kills, and was shot down himself six times. He commanded the flight that shot down the transport of British Lieutenant General William Gott, the newly appointed Commander of the British 8th Army.

See also

Cladistics A method of biological systematics in evolutionary biology

Cladistics is an approach to biological classification in which organisms are categorized in groups ("clades") based on the most recent common ancestor. Hypothesized relationships are typically based on shared derived characteristics (synapomorphies) that can be traced to the most recent common ancestor and are not present in more distant groups and ancestors. A key feature of a clade is that a common ancestor and all its descendants are part of the clade. Importantly, all descendants stay in their overarching ancestral clade. For example, if within a strict cladistic framework the terms animals, bilateria/worms, fishes/vertebrata, or monkeys/anthropoidea would be used, these terms would include humans. Many of these terms are normally used paraphyletically, outside of cladistics, e.g. as a 'grade'. Radiation results in the generation of new subclades by bifurcation.

Cladogram A diagram used to show relations among groups of organisms with common origins

A cladogram is a diagram used in cladistics to show relations among organisms. A cladogram is not, however, an evolutionary tree because it does not show how ancestors are related to descendants, nor does it show how much they have changed; nevertheless, many evolutionary trees can be inferred from a single cladogram. A cladogram uses lines that branch off in different directions ending at a clade, a group of organisms with a last common ancestor. There are many shapes of cladograms but they all have lines that branch off from other lines. The lines can be traced back to where they branch off. These branching off points represent a hypothetical ancestor which can be inferred to exhibit the traits shared among the terminal taxa above it. This hypothetical ancestor might then provide clues about the order of evolution of various features, adaptation, and other evolutionary narratives about ancestors. Although traditionally such cladograms were generated largely on the basis of morphological characters, DNA and RNA sequencing data and computational phylogenetics are now very commonly used in the generation of cladograms, either on their own or in combination with morphology.

Subclade may be

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James Bradley is an Australian novelist and critic. Born in Adelaide, South Australia, he trained as a lawyer before becoming a writer.

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Ferungulata

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Mark Budz is an American science fiction writer. Budz was born on November 1, 1960, in Cherry Hill, New Jersey, into a family that traveled prodigiously. In the late 1980s, Budz moved to Oregon to become a full-time writer. Although he began by writing short stories, his novels such as Clade and Crache have been nominated for major awards.

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Podiata

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