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，以支持美国-法国在动物生理生态学方面的合作研究涉及加州大学的丹尼尔·P·科斯塔、圣克鲁斯、法国尼奥尔河畔博瓦的细胞生物学研究中心的皮埃尔·茹文廷和亨利·魏默斯基尔奇以及英国南极调查局的彼得·普林斯。 美国国家科学基金会的这笔赠款将主要支持一名美国研究生参加南大洋法属南极群岛的实地研究。 本研究的目的是探讨信天翁的觅食行为和父母的投资。 他们将通过测量两种旅行中成年人的能量消耗、身体成分和觅食行为来检验长时间和短时间觅食强度不同的假设。 使用流浪信天翁作为案例研究，拟议的调查将测试目前的生命史理论，长寿的物种在繁殖和维护过程中几乎没有风险，以最大限度地提高整个生命周期的适应性。 从本质上讲，成年人必须在自我维持和生殖之间有区别地分配资源，在某些情况下，这在成年人与其后代之间或在两个照顾者之间造成冲突。 这位美国研究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门知识对此起到了补充作用。 它利用了法属南极洲的常设观测站、关于几种信天翁的繁殖历史和种群动态的30年数据库以及法国和英国在ARGOS卫星物种标记方面的进展。

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.