U.S.-France Cooperative Research: Foraging Ecology of Wandering Albatrosses, Diamedea Exulans

9873760科斯塔这个为期两年的奖项旨在支持美法在动物生理生态学方面的合作研究，获奖者包括加州大学圣克鲁斯分校的丹尼尔·p·科斯塔、法国波沃河畔Cellulaires生物研究中心的皮埃尔·jouventn和亨利·魏默斯科奇，以及英国南极考察队的彼得·普林斯。这项NSF资助将主要支持一名美国研究生在南大洋法属南极岛屿进行实地研究。本研究的目的是研究流浪信天翁（Diomedea Exulans）觅食和亲代投资。他们将通过测量能量消耗、身体组成和成年鸟在两种旅行中的觅食行为，来验证长途和短途觅食强度不同的假设。以流浪信天翁为例，提出的调查将检验目前的生活史理论，即长寿物种在繁殖和维持过程中风险很小，以便在整个生命周期中最大限度地提高适应性。从本质上讲，成年人必须在自我维持和繁殖之间分配不同的资源，在某些情况下，这会在成年人和他们的后代之间或在两个照顾者之间产生冲突。这位美国研究人员和研究生为这次合作带来了觅食和生殖能量学测量方面的专业知识。法国在信天翁生物学方面的专业知识补充了这一点。它利用了法属南极洲的永久站、一个关于若干信天翁物种的生殖历史和种群动态的30年数据库以及法国和英国在ARGOS卫星标记物种方面的进展。

9873760CostaThis two-year award in support of U.S.-France collaborative research in animal physiological ecology involves Daniel P. Costa of the University of California, Santa Cruz, Pierre Jouventin and Henri Weimerskirch of the Centre des Etudes Biologiques Cellulaires, Beauvoir-sur-Niort, France, and Peter Prince of the British Antarctic Survey. This NSF grant will principally support the participation of a US graduate student in field research in the French Antarctic islands in the Southern Ocean. The objective of the research is to investigate foraging and parental investment by wandering albatrosses or Diomedea Exulans. They will test the hypothesis that foraging intensity differs between long and short foraging bouts by measuring energy expenditure, body composition, and foraging behavior of adults on both types of trips. Using the wandering albatross as a case study, the proposed investigations will test current life history theory that long-lived species incur few risks during reproduction and maintenance in order to maximize fitness over an entire life span. In essence, adults must differentially allocate resources between self-maintenance and reproduction and in some cases, this creates conflicts between adults and their offspring or between both caregivers. The US researcher and graduate student bring to this collaboration expertise in measurements of foraging and reproductive energetics. This is complemented by French expertise on the biology of albatrosses. It takes advantage of access to permanent stations in French Antarctica, a 30 year database on reproductive history and population dynamics of several albatross species and French and British advances in ARGOS satellite tagging of species.