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EVOLUTIONARY RADIATION [1 record]

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Alphabetical list of terms

Record 1 2011-12-14

English

Subject field(s)
  • Evolution (Biology)
  • Paleontology
DEF

A diversification into several lineages from a common ancestor.

CONT

An evolutionary radiation is an increase in taxonomic diversity or morphological disparity, due to adaptive change or the opening of ecospace. Radiations may affect one clade or many, and be rapid or gradual; where they are rapid, and driven by a single lineage's adaptation to their environment, they are termed adaptive radiations.

French

Domaine(s)
  • Évolution (Biologie)
  • Paléontologie
OBS

Le terme de radiation évolutive s'applique à un clade qui s'est grandement et relativement rapidement diversifié pour donner naissance à de nombreuses espèces (clades) dont la morphologie, l'écologie, la distribution peuvent varier de manière importante. Processus de diversification au cours de l'évolution.

OBS

radiation évolutive : terme en usage à Ressources naturelles Canada - Secteur des sciences de la Terre.

Spanish

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