网站首页  词典首页

请输入您要查询的词汇:

 

词汇 cladistics
释义

Definition of cladistics in English:

cladistics

plural nounkləˈdɪstɪkskləˈdistiks
Biology
  • treated as singular A method of classification of animals and plants that aims to identify and take account of only those shared characteristics which can be deduced to have originated in the common ancestor of a group of species during evolution, not those arising by convergence.

    〔生〕分枝系统学,支序分类学

    Example sentencesExamples
    • Today, cladistics is the method of choice for classifying life because it recognizes and employs evolutionary theory.
    • The second half of the 20th century has seen the advent of two revolutions in systematics: cladistics and molecular phylogenetics.
    • Of course, it is possible to do cladistics without reference to evolution, but nothing in biology makes much sense-including cladistics-except in the light of evolution.
    • He was an early champion of cladistics in paleontology, which at the time was a new approach to studying questions in that subject.
    • The basic idea behind cladistics is that members of a group share a common evolutionary history, and are ‘closely related’, more so to members of the same group than to other organisms.

Derivatives

  • cladism

  • nounˈkladɪz(ə)m
    Biology
    • The two main methods for developing phylogenies in palaeontology are evolutionary systematics and phylogenetic systematics or cladism.
      Example sentencesExamples
      • He also tried to characterize my enthusiasm for the theropod origin as ‘the zeal of new school cladism.’
      • But to reject process cladism on the austere grounds of some idealised pattern cladist purity of inference is equally mistaken.
      • However, in two places I was surprised to find that the scientist - who earlier had exposed himself as a pronounced skeptic against pattern cladism - argues like a transformed cladist.
      • They argue against cladism and are in favour of retaining the Linnean methodology.
  • cladistic

  • adjective
    Biology
    • He has the distinction of being one of the very early converts to cladistic methods in vertebrate paleontology.
      Example sentencesExamples
      • We are not aware, however, of any previous studies that have used cladistic methods to define paleontological species.
      • In general, recent cladistic analyses have not yet fully exploited the power of cladistics to test available competing hypotheses.
      • He argues that a cladistic treatment of data from diploid and allopolyploid taxa together will inevitably produce a wrong result.
      • However, a cladistic approach to phenotype association studies does not require a complete absence of recombination.

Origin

1960s: from clade + -ist + -ics.

Definition of cladistics in US English:

cladistics

plural nounkləˈdistiks
Biology
  • treated as singular A method of classification of animals and plants according to the proportion of measurable characteristics that they have in common. It is assumed that the higher the proportion of characteristics that two organisms share, the more recently they diverged from a common ancestor.

    Example sentencesExamples
    • The basic idea behind cladistics is that members of a group share a common evolutionary history, and are ‘closely related’, more so to members of the same group than to other organisms.
    • Today, cladistics is the method of choice for classifying life because it recognizes and employs evolutionary theory.
    • He was an early champion of cladistics in paleontology, which at the time was a new approach to studying questions in that subject.
    • Of course, it is possible to do cladistics without reference to evolution, but nothing in biology makes much sense-including cladistics-except in the light of evolution.
    • The second half of the 20th century has seen the advent of two revolutions in systematics: cladistics and molecular phylogenetics.

Origin

1960s: from clade + -ist + -ics.

随便看

 

春雷网英语在线翻译词典收录了464360条英语词汇在线翻译词条,基本涵盖了全部常用英语词汇的中英文双语翻译及用法,是英语学习的有利工具。

 

Copyright © 2000-2024 Sndmkt.com All Rights Reserved 更新时间:2024/12/28 0:48:55