Using miniaturized light-sensing geolocators to build a migratory network for a songbird

使用微型光感地理定位器为鸣禽构建迁徙网络

• 批准号: 423179-2012
• 负责人: Norris, Ryan
• 金额: $ 1.46万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Research Tools and Instruments - Category 1 (<$150,000)
• 财政年份: 2011
• 资助国家: 加拿大
• 起止时间: 2011-01-01 至 2012-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=495899
• 关键词: Using; miniaturized; light; sensing; geolocators

Many migratory songbirds have declined over the last decade and understanding the causes of these declines requires information on how breeding and non-breeding populations are geographically connected. Unfortunately, for the vast majority of songbirds we have little idea of where breeding birds spend the non-breeding season. This has not only hindered our ability to effectively conserve populations but also prevented us from addressing fundamental ecological and evolutionary questions about migration. We are requesting funds for 500 miniaturized light-logging geolocators that will be used in a large-scale collaborative project aimed at determining the migration patterns of a long-distance migratory songbird, the Tree swallow (Tachycineta bicolor). The project involves 8 PIs and their research teams spread from the east to the west coast of Canada. All of the PIs currently maintain and monitor active Tree swallow breeding sites and train multiple graduate and undergraduate students at these sites each year. These 0.5g geolocators are designed to estimate daily latitude and longitude by recording the time and duration of daylight and then calibrated with an on-board clock. At each site, we will deploy 50 geolocators and then retrieve these devices the following year. In preliminary trials, we have already shown that geolocators can be successfully deployed and retrieved from Tree swallows. The application of these devices will allow us to train over 25 undergraduate and graduate students in state-of-the-art tracking technology. It will provide us with the ability to examine a number of aspects related to the ecology and conservation of migratory birds, including modeling how quickly diseases can spread between tropical and temperate areas and across the network of breeding sites, understanding how variation in climate on the non-breeding grounds influences reproductive success, and how habitat loss in parts of the network have knock-on effects in other populations.

在过去的十年中，许多迁徙的鸣禽数量已经下降，要了解这些下降的原因，需要了解繁殖和非繁殖种群在地理上是如何联系的。不幸的是，对于绝大多数鸣禽来说，我们几乎不知道繁殖鸟类在哪里度过非繁殖季节。这不仅阻碍了我们有效保护人口的能力，而且也使我们无法解决有关移徙的基本生态和进化问题。我们正在申请资金，用于500个小型光测井地理定位器，这些定位器将用于一个大规模的合作项目，旨在确定一种长距离迁徙鸣禽-树燕（Tachycineta bicolor）的迁徙模式。该项目涉及8名PI，其研究团队分布在加拿大东海岸至西海岸。所有的PI目前维护和监测活跃的树燕子繁殖地点，并在这些地点每年培训多名研究生和本科生。这些0.5g的地理定位器旨在通过记录日光的时间和持续时间来估计每日的纬度和经度，然后用机载时钟进行校准。在每个站点，我们将部署50个地理定位器，然后在第二年取回这些设备。在初步试验中，我们已经表明，地理定位器可以成功地部署和检索树燕子。这些设备的应用将使我们能够培训超过25名本科生和研究生掌握最先进的跟踪技术。它将为我们提供研究与候鸟生态和保护相关的许多方面的能力，包括模拟疾病在热带和温带地区之间以及在繁殖地网络中传播的速度，了解非繁殖地气候变化如何影响繁殖成功，以及网络部分地区栖息地的丧失如何对其他种群产生连锁反应。