Responses to environmental changes in the Arctic top predators based on fine-scale behavioral data

基于精细行为数据的北极顶级掠食者对环境变化的反应

• 批准号: 21681002
• 负责人: WATANABE Yuuki
• 金额: $ 13.06万
• 依托单位: National Institute of Polar Research
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (A)
• 财政年份: 2009
• 资助国家: 日本
• 起止时间: 2009 至 2012
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-21681002/
• 关键词: 北極; 捕食動物; 北極海; 水温; 遊泳; サメ; 捕食; 遊泳能力; データロガー; 捕食者; ニシオンデンザメ

Fine-scale behavioral data were recorded for the Greenland shark and the polar bear, the top predators in the Arctic ecosystems. Greenland sharks showed the slowest swim speed and tail-beat frequency across fishes, when the effect of body size was accounted for. This result indicates that the swimming performance of this species is limited by cold water in the Arctic Ocean. Polar bears were active for about the half of their time, without showing clear diel activity patterns, in April.

记录了格陵兰鲨鱼和北极熊的精细行为数据，这两种动物是北极生态系统中的顶级捕食者。格陵兰鲨鱼表现出最慢的游泳速度和尾拍频率在鱼类，当身体大小的影响占。这一结果表明，该物种的游泳能力受到北冰洋冷水的限制。在四月份，北极熊大约有一半的时间是活跃的，没有显示出明显的昼夜活动模式。

项目成果

Sink fast and swim harder! Round-trip cost-of-transport for buoyant divers

• DOI: 10.1242/jeb.070128
• 发表时间: 2012-10-01
• 期刊: JOURNAL OF EXPERIMENTAL BIOLOGY
• 影响因子: 2.8
• 作者: Miller, Patrick J. O.;Biuw, Martin;Fedak, Mike A.
• 通讯作者: Fedak, Mike A.

Northern elephant seals adjust gliding and stroking patterns with changes in buoyancy forces: validation of at-sea metrics of body density

北象海豹根据浮力的变化调整滑行和抚摸模式：验证海上身体密度指标

• 发表时间: 2011
• 期刊: J. Exp. Biol.
• 作者: Aoki K;Watanabe YY;Crocker DE;Robinson P;Biuw M;Costa DP;Miyazaki N;Fedak M;Miller PJO
• 通讯作者: Miller PJO

Foraging behavior of Adelie penguins monitored by video and acceleration loggers

通过视频和加速度记录仪监测阿德利企鹅的觅食行为

• 发表时间: 2011
• 作者: Takeuchi;N.;Nishiyama;H.;Li;Z.;朴昊澤;Yuuki Watanabe
• 通讯作者: Yuuki Watanabe

Scaling of swim speed in free-ranging seabirds, marine mammals, and sea turtles

自由放养的海鸟、海洋哺乳动物和海龟的游泳速度的缩放

• 发表时间: 2009
• 作者: 渡辺佑基

キタゾウアザラシにおける浮力変化と遊泳行動

北象海豹的浮力变化和游泳行为

• 发表时间: 2010
• 作者: Takeuchi;N;Fujita;K.;Nakazawa;F.;Nakawo;M.;and Rana;B.;渡辺佑基・松村萌・Patrick Miller・Daniel Costa・Patrick Robinson・宮崎信之
• 通讯作者: 渡辺佑基・松村萌・Patrick Miller・Daniel Costa・Patrick Robinson・宮崎信之