The Biology and Systematics of Southeast Asian Frogs

东南亚青蛙的生物学和系统学

• 批准号: 9317642
• 负责人: Sharon Emerson
• 金额: $ 20.75万
• 依托单位: University of Utah
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-07-01 至 1999-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9317642&HistoricalAwards=false
• 关键词: Biology; Systematics; Southeast; Asian; Frogs

9317642 Ward The comparative method offers a powerful technique for tracking change in functional complexes through time. The origin and subsequent effects of an unusual cranial morphology are examined from this perspective in a group of Southeast Asian frogs (Ranidae). Hormone analysis suggests that the occurrence of the unusual set of morphological traits and behaviors in this group is related to a reduction of testosterone levels and the development of parental care. Proposed work includes continuing investigation of the proximal level of control for the expression of morphological characters, additional observations on the behavior of these unique frogs, and expanded phylogenetic (genealogical) analysis using both morphological and molecular characters. The work will establish the relationship among the components of an apparent functional complex: reduced testosterone and the occurrence of male parental care.

小行星9317642 比较方法提供了一个强大的技术跟踪功能复合物随时间的变化。 一个不寻常的颅形态的起源和随后的影响，从这个角度研究在一组东南亚青蛙（蛙科）。 激素分析表明，这一组不寻常的形态特征和行为的发生与睾酮水平的降低和父母照顾的发展有关。 拟议的工作包括继续调查的近端水平的控制的形态特征的表达，这些独特的青蛙的行为，并扩大系统发育（系谱）分析使用形态和分子特征的额外观察。 这项工作将建立一个明显的功能复合体的组成部分之间的关系：睾丸激素减少和男性父母照顾的发生。