Sensors of the seas - Ecology and biogeography of pelagic seabirds in changing oceans

海洋传感器 - 变化海洋中的远洋海鸟的生态学和生物地理学

• 批准号: 208779225
• 负责人: Professorin Dr. Petra Quillfeldt, Ph.D.
• 金额: --
• 依托单位: ArbeitsgruppeTierökologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2012
• 资助国家: 德国
• 起止时间: 2011-12-31 至 2014-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/208779225?language=en
• 关键词: Sensors; seas; Ecology; biogeography; pelagic

Two thirds of our planet are covered by sea, and albatrosses and petrels (Aves, Procellariiformes) are, par excellence, the seabirds of the open ocean. The smaller petrels are ideal monitors of ocean productivity as they feed mainly on zooplankton, which responds rapidly to changing environmental conditions. I here propose a study of the foraging ecology and distribution of small petrels. The first part of this study is concerned with the distribution and population connectivity of two species of prions, Pachyptila belcheri and P. vittata. Both species have distinct populations in two separate parts of the Southern Ocean, posing the question whether these populations are connected, and if the year-round ranges of the populations overlap. To answer this, we will study year-round movements and the genetic structure of these two species throughout their distribution range. In the second part of this study, we will analyse ecological segregation and consequences on life-history in a community of three storm-petrel (Procellariiformes, Hydrobatidae) species breeding jointly on one island. Both parts of this project share common methodology, using miniature datalogger technology and stable isotope analyses, both of recent and historic samples. Together, the proposed analyses will contribute to understanding how different seabird populations share marine resources, how flexible the species are both in an adaptive and evolutionary context, and how they can consequently respond to changes in ocean productivity, and thus, climate change.

我们星球的三分之二被海洋覆盖，而信天翁和海燕（鸟纲，Procellariiformes）是最优秀的公海海鸟。较小的海燕是海洋生产力的理想监测者，因为它们主要以浮游动物为食，而浮游动物对不断变化的环境条件做出快速反应。我在这里提出对小海燕的觅食生态和分布进行研究。本研究的第一部分涉及两种朊病毒（Pachyptila belcheri 和 P. vittata）的分布和种群连通性。这两个物种在南大洋的两个不同部分都有不同的种群，这就提出了这些种群是否相关以及种群的全年范围是否重叠的问题。为了回答这个问题，我们将研究这两个物种在整个分布范围内的全年活动和遗传结构。在本研究的第二部分中，我们将分析在一个岛屿上共同繁殖的三种风暴海燕（Procellariiformes、Hydrobatidae）物种群落的生态隔离及其对生活史的影响。该项目的两个部分采用共同的方法，使用微型数据记录器技术和稳定同位素分析，对最近和历史的样本进行分析。总之，拟议的分析将有助于了解不同海鸟种群如何共享海洋资源，物种在适应和进化背景下的灵活性，以及​​它们如何应对海洋生产力的变化，从而应对气候变化。