DISSERTATION RESEARCH: The function and speciation potential of short- and long-range song in dark-eyed juncos

论文研究：黑眼灯笼草短程和长程鸣叫的功能和物种形成潜力

• 批准号: 1011145
• 负责人: Ellen Ketterson
• 金额: $ 1.5万
• 依托单位: Indiana University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-09-01 至 2013-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1011145&HistoricalAwards=false
• 关键词: DISSERTATION; RESEARCH; function; speciation; potential

The formation of new species can be promoted by variation in acoustic signals that play an important role in mating behavior and thus can influence interbreeding between populations. The relationship between signals and speciation has been studied extensively in loud, long-range signals, but many species including birds, bats, and insects also produce quiet, short-range signals that are difficult to observe and record. New technology now makes it possible to obtain high quality field recordings of quiet signals through the use of newly developed radiotransmitters containing miniature microphones. Research supported by this proposal will address the function of short- and long-range song in the dark-eyed junco, by employing this new technology along with song playback experiments and laboratory preference tests to assess variation among populations. It is predicted that short-range song will function predominantly in courtship and differ more between populations than long-range song, establishing short-range song a potential contributor to the development of new species. This research will contribute to the mentorship and training of diverse undergraduates through Indiana University and the NSF-funded Research Experience for Undergraduates program at Mountain Lake Biological Station in Pembroke, Virginia. Much of the research will take place in public areas such as national forests and parks, allowing researchers to interact with youth groups and vacationers. This study will also strengthen scientific collaborations between Indiana University and the Universities of Melbourne (Australia), Illinois, Montana, and California at Davis. All recordings generated in this study will be contributed to the Macaulay Library of Natural Sounds (http://macaulaylibrary.org/index.do) to allow access to both the public and future researchers. The results of this project will be disseminated broadly by public lectures promoted by Audubon societies, publications in scholarly journals, and presentations at national and international conferences.

新物种的形成可以通过声音信号的变化来促进，声音信号在交配行为中起着重要作用，从而可以影响种群之间的杂交。信号和物种形成之间的关系已经在响亮的长距离信号中得到了广泛的研究，但包括鸟类，蝙蝠和昆虫在内的许多物种也会产生难以观察和记录的安静的短距离信号。新技术使人们有可能通过使用新开发的含有微型麦克风的无线电发射机来获得安静信号的高质量现场记录。这项建议支持的研究将解决短距离和长距离的歌曲在黑眼junco的功能，通过采用这种新技术沿着歌曲播放实验和实验室偏好测试，以评估种群之间的变化。据预测，短距离的歌曲将主要功能在求偶和不同的人群之间比长距离的歌曲，建立短距离的歌曲新物种的发展的潜在贡献者。这项研究将有助于通过印第安纳州大学和NSF资助的本科生项目在弗吉尼亚州彭布罗克的山湖生物站的指导和培训不同的本科生。 大部分研究将在国家森林和公园等公共区域进行，使研究人员能够与青年团体和度假者互动。这项研究还将加强印第安纳州大学与墨尔本（澳大利亚）、伊利诺伊州、蒙大拿州和加州戴维斯分校之间的科学合作。本研究中生成的所有录音将贡献给麦考利自然声音图书馆（http：//macaulaylibrary.org/index.do），以便公众和未来的研究人员可以使用。该项目的成果将通过奥杜邦学会举办的公开讲座、在学术期刊上发表的文章以及在国家和国际会议上的演讲而广泛传播。