cladistic

简明释义

英[kləˈdɪstɪk]美[kləˈdɪstɪk]

adj. （根据）进化枝的；依据遗传因素与血统关系的

英英释义

单词用法

同义词

反义词

例句

1.In this paper, a cladistic analysis was applied to reveal the phylogenetic relationships among the Nymphaeaceae.

本文用谱系分支法分析睡莲科的属间关系。

2.The rapid development of cladistic approach has motivated the proposal of the phylogenetic species concept.

分支学派的兴起，推动了系统发育种概念的提出。

3.Because of the different understands in the principles of biological taxonomy, it's devided into three branches distinctly, they are numerical taxonomy, cladistic taxonomy and evolutionary taxonomy.

由于对分类学原理的不同理解，分类学明显分为三大流派：数值分类学，分支分类学和进化分类学。

4.Because of the different understands in the principles of biological taxonomy, it's devided into three branches distinctly, they are numerical taxonomy, cladistic taxonomy and evolutionary taxonomy.

由于对分类学原理的不同理解，分类学明显分为三大流派：数值分类学，分支分类学和进化分类学。

5.The study of evolutionary relationships often relies on cladistic 分支分类的 methods to classify organisms.

对进化关系的研究通常依赖于cladistic 分支分类的 方法来分类生物。

6.In our biology class, we learned how to create a cladistic 分支分类的 tree to illustrate the connections between different species.

在我们的生物课上，我们学习了如何创建一个cladistic 分支分类的 树来说明不同物种之间的联系。

7.Researchers used cladistic 分支分类的 analysis to determine the most likely ancestor of the species.

研究人员使用cladistic 分支分类的 分析来确定该物种最可能的祖先。

8.The cladistic 分支分类的 framework helps in understanding the shared characteristics among various taxa.

该cladistic 分支分类的 框架有助于理解各种分类群之间的共同特征。

9.The cladistic 分支分类的 approach provides a clearer understanding of evolutionary history than traditional methods.

与传统方法相比，cladistic 分支分类的 方法提供了对进化历史更清晰的理解。

作文

In the field of biology, the study of evolutionary relationships among species is essential for understanding the history of life on Earth. One of the most important methodologies used in this research is known as cladistic, which refers to a systematic approach to classifying organisms based on shared characteristics and common ancestry. By focusing on these relationships, scientists can create a visual representation of evolutionary pathways called a cladogram, which illustrates how different species are interrelated through their evolutionary history.The concept of cladistic analysis emerged in the mid-20th century, largely attributed to the work of biologist Willi Hennig. Hennig proposed that organisms should be classified not merely by their physical traits but by their evolutionary lineage. This marked a significant shift from traditional taxonomy, which often relied on superficial similarities between species. Instead, cladistic methods emphasize the importance of phylogenetic relationships, allowing researchers to group organisms into clades—groups that include an ancestor and all its descendants.One of the key advantages of cladistic analysis is its ability to clarify the evolutionary relationships between organisms. For instance, consider the classification of birds and reptiles. Traditionally, birds were viewed as a distinct group separate from reptiles due to their unique features such as feathers and flight. However, cladistic studies have shown that birds actually share a common ancestor with certain groups of reptiles, particularly theropod dinosaurs. This revelation has profound implications for our understanding of evolution, as it highlights the interconnectedness of life forms and provides insights into the adaptations that have occurred over millions of years.Moreover, cladistic approaches have been instrumental in the field of conservation biology. By identifying the evolutionary relationships among species, conservationists can prioritize efforts to protect those that are most closely related to endangered species. This is crucial because preserving genetic diversity within a clade can enhance the resilience of ecosystems and improve the chances of survival for various species in the face of environmental changes.However, the application of cladistic methods is not without challenges. One major issue is the availability and quality of data. Accurate cladistic analysis relies on comprehensive and reliable information regarding the traits and genetic sequences of the organisms being studied. In many cases, especially with extinct species, this data may be limited or entirely absent, complicating efforts to construct accurate cladograms.Furthermore, the interpretation of results can sometimes be contentious. Different researchers may arrive at varying conclusions based on the same data, leading to debates within the scientific community. This underscores the importance of rigorous methodology and peer review in cladistic studies to ensure that findings are robust and reliable.In conclusion, the use of cladistic methods has revolutionized our understanding of evolutionary biology. By emphasizing the importance of common ancestry and shared characteristics, cladistic analysis provides a more nuanced view of the relationships among organisms. As research continues to evolve and new data becomes available, the insights gained from cladistic studies will undoubtedly deepen our appreciation for the complexity and interconnectedness of life on our planet. Ultimately, the knowledge derived from cladistic approaches not only enriches our understanding of biology but also informs conservation efforts aimed at preserving the rich tapestry of life that exists today.

在生物学领域，研究物种之间的进化关系对于理解地球生命的历史至关重要。其中一种最重要的方法论被称为cladistic，它指的是一种基于共享特征和共同祖先对生物进行分类的系统方法。通过关注这些关系，科学家可以创建一种称为分支图的可视化表示，展示不同物种如何通过它们的进化历史相互关联。cladistic分析的概念出现在20世纪中期，主要归功于生物学家威利·亨尼希的工作。亨尼希提出，生物应该根据其进化谱系进行分类，而不仅仅是根据其物理特征。这标志着传统分类法的重大转变，后者往往依赖于物种之间表面的相似性。相反，cladistic方法强调系统发育关系的重要性，使研究人员能够将生物分组为分支——包括一个祖先及其所有后代的群体。cladistic分析的一个关键优势在于它能够阐明生物之间的进化关系。例如，考虑鸟类和爬行动物的分类。传统上，由于鸟类具有羽毛和飞行等独特特征，它们被视为与爬行动物截然不同的群体。然而，cladistic研究表明，鸟类实际上与某些爬行动物（特别是兽脚亚目恐龙）共享共同的祖先。这一发现对我们理解进化具有深远的影响，因为它突显了生命形式之间的相互联系，并提供了数百万年来发生的适应变化的见解。此外，cladistic方法在保护生物学领域也发挥了重要作用。通过识别物种之间的进化关系，保护主义者可以优先保护与濒危物种最密切相关的物种。这一点至关重要，因为保护一个分支内的遗传多样性可以增强生态系统的韧性，提高各种物种在面对环境变化时的生存机会。然而，cladistic方法的应用并非没有挑战。一个主要问题是数据的可用性和质量。准确的cladistic分析依赖于关于所研究生物的特征和基因序列的全面和可靠的信息。在许多情况下，尤其是对于灭绝物种，这些数据可能有限或完全缺失，从而使构建准确的分支图变得复杂。此外，对结果的解释有时也可能引发争议。不同的研究人员可能会根据相同的数据得出不同的结论，从而导致科学界内部的辩论。这强调了在cladistic研究中严格方法和同行评审的重要性，以确保研究结果的稳健性和可靠性。总之，cladistic方法的使用彻底改变了我们对进化生物学的理解。通过强调共同祖先和共享特征的重要性，cladistic分析提供了对生物之间关系的更细致的看法。随着研究的不断发展和新数据的出现，从cladistic研究中获得的见解无疑将加深我们对地球上生命复杂性和相互联系的欣赏。最终，从cladistic方法中获得的知识不仅丰富了我们对生物学的理解，还为旨在保护当今丰富生命织锦的保护工作提供了信息。