The Role of Oceanographic Features and Prey Distribution on Foraging Energetics and Reproductive Success of the Antarctic Fur Seal, Arctocephalus Gazella
海洋学特征和猎物分布对南极毛皮海豹(Arctocephalus Gazella)觅食能量和繁殖成功的作用
基本信息
- 批准号:9726567
- 负责人:
- 金额:$ 28.2万
- 依托单位:
- 依托单位国家:美国
- 项目类别:Standard Grant
- 财政年份:1998
- 资助国家:美国
- 起止时间:1998-09-01 至 2002-08-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
9726567 COSTA Marine coastal and pelagic environments of the Southern Ocean are characterized by seasonal high productivity. Over the last several decades it has become clear that these environments, while generally productive, also undergo considerable inter- and intra-annual variability. Consequently, available prey resources for vertebrate predators can be highly variable spatially and temporally. This spatial and temporal variability of prey resources has been measured empirically for the northern South Shetland Islands region of the Antarctic Peninsula since the late 1980's. The Antarctic fur seal, a sub-polar migratory otariid with a short lactation period, is an increasingly dominant marine predator of the South Shetlands region. Its life history is pattern is characterized by foraging trips alternating with short visits to provision a single offspring; this allows scientists to measure maternal investment on the same temporal and spatial scale as measurements of distribution and abundance of prey. This project will quantify the foraging costs and maternal investment associated with changes in strategies observed in populations of South Shetland Ataractic fur seals. Energetic costs and benefits of different foraging patterns with simultaneous measurement of energy expenditure, food intake, dive depth, dive duration, time of day, and dive frequency, swim speed and foraging location will be accomplished using state of the art techniques. These measurements will coincide with small and large scale oceanographic surveys to be conducted by the National Oceanic and Atmospheric Administration's Antarctic Marine Living Resources program, which is also contributing to the support of this project. The research will allow scientists to link biological characteristics (prey composition, distribution and abundance) and physical characteristics of the foraging environment with foraging success, maternal investment and reproductive success for a free-ranging marine ve rtebrate predator.
9726567 COSTA南大洋的海洋沿海和远洋环境的特点是季节性高生产力。在过去几十年中,人们已经清楚地看到,这些环境虽然总体上是生产性的,但也经历了相当大的年际和年际变化。 因此,脊椎动物捕食者的可用猎物资源可以是高度可变的空间和时间。 自20世纪80年代后期以来,南极半岛的北方南设得兰群岛地区的猎物资源的这种空间和时间的变化已被经验性地测量。南极软毛海豹是一种哺乳期短的亚极地迁徙otariid,是南设得兰群岛地区日益占主导地位的海洋捕食者。它的生活史模式的特点是觅食旅行与短期访问交替提供一个单一的后代;这使科学家能够在相同的时间和空间尺度上测量母体投资作为测量猎物的分布和丰度。该项目将量化觅食成本和产妇投资与观察到的南设得兰群岛的北极软毛海豹种群的战略变化。将使用最先进的技术,同时测量能量消耗、食物摄入、潜水深度、潜水持续时间、一天中的时间、潜水频率、游泳速度和觅食位置,以完成不同觅食模式的能量成本和效益。这些测量将与国家海洋和大气管理局的南极海洋生物资源方案进行的小规模和大规模海洋学调查同时进行,该方案也有助于支持这一项目。 这项研究将使科学家能够将生物学特征(猎物组成,分布和丰度)和觅食环境的物理特征与自由放养的海洋脊椎动物捕食者的觅食成功,母性投资和繁殖成功联系起来。
项目成果
期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
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Daniel Costa其他文献
An Evolutionary Tabu Search Algorithm And The NHL Scheduling Problem
进化禁忌搜索算法和 NHL 调度问题
- DOI:
10.1080/03155986.1995.11732279 - 发表时间:
1995 - 期刊:
- 影响因子:1.3
- 作者:
Daniel Costa - 通讯作者:
Daniel Costa
Endogenous depression and imipramine levels in the blood
- DOI:
10.1007/bf00427888 - 发表时间:
1980-10-01 - 期刊:
- 影响因子:3.300
- 作者:
Daniel Costa;Vasile Predescu;Ilena Vişan-Ionescu;Tiberiu Ciurezu - 通讯作者:
Tiberiu Ciurezu
Síndrome de McCune-Albright: Relato de Caso
麦库内-奥尔布赖特综合症:卡索关系
- DOI:
- 发表时间:
2016 - 期刊:
- 影响因子:0
- 作者:
Stefânia Demori;Joana Roberta Fitz;Laura Raquel Dal Alba Pilger;Daniel Costa;M. Heine;Soraia Nilsa Schmidt - 通讯作者:
Soraia Nilsa Schmidt
Order statistics of independent identically distributed variables when the sum is known
总和已知时独立同分布变量的阶次统计
- DOI:
10.1023/a:1008961428961 - 发表时间:
1998 - 期刊:
- 影响因子:2.2
- 作者:
E. Silver;Daniel Costa;W. Zangwill - 通讯作者:
W. Zangwill
Trans‐oceanic subsurface photovoltaic performance
跨洋地下光伏发电性能
- DOI:
10.1002/pip.3744 - 发表时间:
2023 - 期刊:
- 影响因子:0
- 作者:
Collin A. Krawczyk;Michael W. Shafer;Paul G. Flikkema;Rachel Rose Holser;Daniel Costa - 通讯作者:
Daniel Costa
Daniel Costa的其他文献
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{{ truncateString('Daniel Costa', 18)}}的其他基金
Collaborative Research: Foraging Ecology and Physiology of the Leopard Seal
合作研究:豹海豹的觅食生态学和生理学
- 批准号:
1644256 - 财政年份:2017
- 资助金额:
$ 28.2万 - 项目类别:
Continuing Grant
Retrospective Analysis of Antarctic Tracking data (RAATD): International Crabeater and Weddell Seal Tracking Data Sets
南极追踪数据 (RAATD) 回顾性分析:国际食蟹鸟和威德尔海豹追踪数据集
- 批准号:
1321782 - 财政年份:2013
- 资助金额:
$ 28.2万 - 项目类别:
Standard Grant
Collaborative Research: Weddell seals as autonomous sensors of the winter oceanography of the Ross Sea
合作研究:威德尔海豹作为罗斯海冬季海洋学的自主传感器
- 批准号:
0838937 - 财政年份:2009
- 资助金额:
$ 28.2万 - 项目类别:
Standard Grant
SGER: Foraging Patterns of Elephant Seals in the Vicinity of the WIlkins Ice Shelf
SGER:威尔金斯冰架附近象海豹的觅食模式
- 批准号:
0840375 - 财政年份:2008
- 资助金额:
$ 28.2万 - 项目类别:
Standard Grant
Collaborative Research: U.S. SO GLOBEC Synthesis and Modeling - Habitat Utilization and Predator-Prey interactions In Western Antarctic Peninsula
合作研究:美国 SO GLOBEC 综合和建模 - 南极半岛西部的栖息地利用和捕食者与被捕食者的相互作用
- 批准号:
0523332 - 财政年份:2006
- 资助金额:
$ 28.2万 - 项目类别:
Standard Grant
Habitat Utilization of Southern Ocean Seals: Foraging Behavior of Crabeater and Elephant Seals Using Novel Methods of Oceanographic Data Collection
南大洋海豹的栖息地利用:利用海洋学数据收集新方法研究食蟹海豹和象海豹的觅食行为
- 批准号:
0440687 - 财政年份:2005
- 资助金额:
$ 28.2万 - 项目类别:
Continuing Grant
Foraging Ecology of Crabeater Seals (Lobodon Carcinophagus)
食蟹海豹(Lobodon Carcinophagus)的觅食生态
- 批准号:
9981683 - 财政年份:2000
- 资助金额:
$ 28.2万 - 项目类别:
Standard Grant
Dissertation Research: Foraging Ecology of Procellariiform Seabirds: Impacts on Reproduction and Life History
论文研究:原状海鸟的觅食生态学:对繁殖和生活史的影响
- 批准号:
9972651 - 财政年份:1999
- 资助金额:
$ 28.2万 - 项目类别:
Standard Grant
U.S.-France Cooperative Research: Foraging Ecology of Wandering Albatrosses, Diamedea Exulans
美法合作研究:漂泊信天翁的觅食生态学
- 批准号:
9873760 - 财政年份:1999
- 资助金额:
$ 28.2万 - 项目类别:
Standard Grant
The Importance of Foraging Pattern on Reproductive Success in the Northern Fur Seal, Callorhinus Ursinus
觅食模式对北方毛皮海豹 (Callorhinus Ursinus) 繁殖成功的重要性
- 批准号:
9500072 - 财政年份:1995
- 资助金额:
$ 28.2万 - 项目类别:
Continuing Grant
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