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首页> 外文学位 >A CLADISTIC ANALYSIS OF AGONUM AND ALLIED GENERA, WITH A SYSTEMATIC REVISION OF THE A. EXTENSICOLLE SPECIES GROUP (COLEOPTERA: CARABIDAE).
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A CLADISTIC ANALYSIS OF AGONUM AND ALLIED GENERA, WITH A SYSTEMATIC REVISION OF THE A. EXTENSICOLLE SPECIES GROUP (COLEOPTERA: CARABIDAE).

机译：对Agonum和相关属进行的流行病学分析，并对A.延伸物种物种（鞘翅目：甲壳纲）进行了系统修订。

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摘要

Cladistic analysis based on internal male and female reproductive characters and external characters is used to group exemplar taxa in the carabid tribe Platynini. A classification, key to genera in North America, and a key to species groups of Agonum in North America north of Mexico are presented.; The Agonum extensicolle species group comprises 7 species: A. cyanope (Bates); A. extimum Liebherr, n. sp.; A. parextimum Liebherr n. sp.; A. texanum (LeConte); A. extensicole (Say); A. decorum (Say); A. elongatulum (Dejean). Analyses of infraspecific geographic variation show: (1) A. texanum is biometrically uniform over the center of its range whereas individuals from outlying populations deviate in several measurements; (2) A. extensicole is a variable species, with clinal changes in biometry and color occurring across its range; (3) A. decorum is polymorphic for color and setation, as well as varying clinally in biometric characters. Metanotal flight apparatus development is inversely correlated with the amount of genetic heterogeneity measured by starch-gel electrophoresis.; Electrophoretic, qualitative morphological, and biometric data are used to estimate phylogenetic relationships in the A. extensicole group. The electrophoretic and morphological data produce compatible estimates of phylogeny. The biometric data are incompatible with the other data and are judged less useful for estimation of affinities. Distributional data are utilized in conjunction with the proposed phylogeny to investigate speciation events in the group. The principal mechanism is allopatric speciation brought about by vicariance across the lowlands of southeastern Arizona; the Cochise filter barrier. A second pattern involves a peripheral isolate of Antillean stock diverging on the Florida peninsula. A third speciation event involves a habitat shift in which a lowland desert form produced a species which now inhabits the pine-oak zone in the Sierra Madre occidental. The area-taxon relationships are compared with those in other groups. Based on an electrophoretic clock calibrated using data from Drosophila, the timing of the initial speciation event in the group is estimated at 6-12 million years b.p. Other speciation events occurred throughout the Pliocene and Pleistocene, with the most recent divergence of A. decorum and A. Elongatulum estimated at less than 2 million years b.p.
机译：基于男性和女性内部生殖特征和外部特征的分类分析被用于对卡拉普拉特尼尼部落的典型分类群进行分组。给出了分类，北美属的关键和墨西哥北部北美的gon属物种组的关键。 Agonum extensicolle物种组包含7种：A. cyanope（Bates）;利勃海尔A. sp .;极端的利勃海尔sp .; A. texanum（LeConte）; A. extensicole（说）; A.礼节（说）; A. elongatulum（Dejean）。对种下地理变异的分析表明：（1）德克萨斯州立草在其范围的中心上在生物特征上是一致的，而来自偏远种群的个体在若干方面存在偏差； （2）A. extensicole是一个可变物种，在其整个范围内生物特征和颜色发生了临床变化。 （3）礼仪在颜色和设置上是多态的，并且在生物特征方面也有明显的变化。元标记飞行器的发展与通过淀粉-凝胶电泳测量的遗传异质性的数量成反比。电泳，定性形态学和生物统计学数据被用于估计延伸链霉菌群中的系统发育关系。电泳和形态学数据可以得出系统发育的估计值。该生物特征数据与其他数据不兼容，并且被判断为对亲和力的估计不太有用。分布数据与拟议的系统发育一起用于调查该组中的物种形成事件。其主要机制是在亚利桑那州东南部低地上的变异引起的异源物种形成。 Cochise过滤网。第二种模式涉及在佛罗里达半岛上分布的安蒂尔良种的外围分离株。第三次物种形成事件涉及栖息地转移，其中低地沙漠形式产生了一个物种，该物种现在居住在西马德雷山脉的松橡树地带。将面积-分类单元关系与其他组的关系进行比较。根据使用果蝇数据校准的电泳时钟，该组中最初物种形成事件的发生时间估计为6-12百万年b.p.。其他物种形成事件发生在上新世和更新世，最近的A.decorum和A.Elongatulum差异估计在不到200万年前。

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  • 作者

    LIEBHERR, JAMES KENNETH.;

  • 作者单位

    University of California, Berkeley.;

  • 授予单位 University of California, Berkeley.;
  • 学科 Biology Entomology.
  • 学位 Ph.D.
  • 年度 1983
  • 页码 470 p.
  • 总页数 470
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 昆虫学;
  • 关键词

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