DISSERTATION RESEARCH: Sound Production in Spiny Lobsters (Palinuridae): Morphological Constraints and the Evolution of Signal Diversity

论文研究：龙虾（龙虾科）的发声：形态限制和信号多样性的演变

• 批准号: 9972597
• 负责人: Stephen Nowicki
• 金额: $ 0.98万
• 依托单位: Duke University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-07-01 至 2001-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9972597&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; Sound; Production; Spiny

Organisms communicate using a diversity of signals, but there is relatively little known of the factors that contribute to this diversity. One approach to addressing this question is to examine how the morphology involved in signal production may influence the way these signals can change over evolutionary time. Limits on morphological variation (morphological constraints) during the evolution of a communication system are rarely addressed because signal-producing morphology is often too complex to be analyzed. Spiny lobsters (Palinuridae) offer an important model system because both morphology and signal features can be easily quantified and because there is significant variation across this clade of organisms. This proposed research addresses two specific aims: (1) to construct a combined morphological and molecular phylogeny of the spiny lobsters and (2) to use comparative methods to test for correlations between sound-producing morphology, the surrounding antennal morphology and signal features. Results from these studies will be used to test hypotheses for how constraints on morphological variation influence signal diversity. Through an understanding of how constraints on morphological variation can lead to patterns of signal diversity, this research will offer novel insights into variation in the structure and function of communication systems.

生物体使用不同的信号进行交流，但对造成这种多样性的因素知之甚少。解决这个问题的一种方法是研究信号产生中涉及的形态如何影响这些信号随进化时间变化的方式。很少涉及通信系统发展过程中的形态变化限制(形态约束)，因为信号产生的形态往往太复杂而无法分析。刺龙虾(棕榈科)提供了一个重要的模型系统，因为形态和信号特征都可以很容易地量化，而且这一支系的生物之间存在着显着的差异。这项研究提出了两个具体目标：(1)构建带刺龙虾的形态和分子系统学相结合的系统发育；(2)使用比较方法来检验发声形态、周围触角形态和信号特征之间的相关性。这些研究的结果将被用来检验对形态变异的限制如何影响信号多样性的假设。通过理解形态变异的约束如何导致信号分集的模式，这项研究将为通信系统的结构和功能的变异提供新的见解。