• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Herpetologica >Modulated but conserved segmental growth of the original tail in Callisaurus draconoides (Phrynosomatidae) and Calotes versicolor (Agamidae)
【24h】

Modulated but conserved segmental growth of the original tail in Callisaurus draconoides (Phrynosomatidae) and Calotes versicolor (Agamidae)

机译：尾con（Callisaurus draconoides）（Phrynosomatidae）和杂色Calotes versicolor（Agamidae）原始尾巴的节律但保守节段性生长

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Caudal growth is examined in the phrynosomatid Callisaurus draconoides ventralis and the agamid Calotes versicolor, both from a segmental point of view and from that of the entire tail. Growth of the entire tail relative to snout-vent length follows negative allometry in the former species and positive allometry in the latter. Despite this result, patterns of segmental growth are differential along the length of the tail in both species and follow a similar pattern in each. In both C. d. ventralis and C. versicolor, proximal caudal vertebrae grow with positive allometry, followed by an extensive transitional region of approximate isometry, and a distal region of highly negative allometry. The region of positive allometry is more pronounced in C. versicolor, resulting in overall positive allometry, whereas the negatively allometric region is highly pronounced in C. d. ventralis, resulting in negative allometry of the entire tail. Differential regional growth of the tail is similar to previous findings for the polychrotid Anolis grahami, suggesting limited influence of ecological and functional aspects such as caudal autotomy, bipedalism, and arboreality on segmental tail growth. Although rates of growth of the entire tail are highly variable in iguanian lizards, differential patterns of segmental tail growth appear to be conserved and are very similar among the three species.
机译：从节段的角度和整个尾巴的角度来看，都在生殖器官的Callisaurus draconoides ventralis和杂色的Calotes尾鳍中检查了尾鳍的生长。相对于吻口长度，整个尾巴的生长遵循前者中的负异性和后者中的正异性。尽管有这个结果，在两个物种中，节段生长的模式沿着尾巴的长度是不同的，并且在每个物种中都遵循相似的模式。在两个C. d。腹侧和杂色衣原体，近端尾椎骨随着正变构法而生长，随后是近似等距构图的广泛过渡区域和高度负变构法的远端区域。正花异形的区域在杂色梭菌中更为明显，从而导致总体上正异形，而负异形的区域在C. d中高度显着。腹侧，​​导致整个尾巴的负变态。尾部的差异性区域生长与先前对多软骨Anolis grahami的发现相似，这表明生态和功能方面（如尾椎切开术，两足动物和任意性）对节段性尾巴生长的影响有限。尽管在鬣蜥中整个尾巴的生长速度变化很大，但节段尾巴生长的差异模式似乎是保守的，并且在这三个物种中非常相似。

著录项

相似文献

  • 外文文献
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号