• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Experimental Marine Biology and Ecology >Environmental drivers of humpback whale foraging behavior in the remote Southern Ocean
【24h】

Environmental drivers of humpback whale foraging behavior in the remote Southern Ocean

机译：远程南洋驼背鲸觅食行为的环境驱动因素

获取原文
获取原文并翻译 | 示例
       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Satellite telemetry and animal movement models advance our ability to remotely monitor the behavior of wideranging species. Understanding how different behaviors (e.g. foraging) are shaped by dynamic environmental features is fundamental to understanding ecological interactions and the impact of variability. In this study we deployed satellite-linked tags on humpback whales (Megaptera novaeangliae) and used state-space models to estimate locations and to infer underlying behavioral states. We then modelled the association between whale behavior (e.g. foraging or transiting) and environmental variables using linear mixed-effect models, We identified the importance of two recently discovered Southern Ocean feeding areas for Oceania humpback whales as well as the key environmental drivers affecting whale behavior. We detected behavioral differences between whales utilizing the two adjacent feeding regions (similar to 2000 km apart), which were likely caused by animals trying to efficiently locate prey in relation to the dynamic environmental characteristics of each habitat. We observed a seasonal pattern in foraging behavior, with the peak occurring in the middle of summer. Whales also foraged more intensively with increasing proximity to areas from which the ice edge had recently retreated, suggesting heightened productivity in these areas. The relationship between the animals and the physical features of the seascape, as well as the behavioral plasticity observed, could have implications for the future recovery of these whales in a changing Southern Ocean.
机译：卫星遥测和动物运动模型推进了我们远程监测宽宽物种的行为的能力。了解如何通过动态环境特征形状的不同行为（例如，觅食）是理解生态互动和变异性的影响的基础。在这项研究中，我们在驼背鲸（Megaptera NovaeAngiae）和使用状态空间模型上部署了卫星连接标签以估计位置并推断出底层行为状态。然后，我们使用线性混合效果模型建模了鲸鱼行为（例如觅食或过渡）和环境变量之间的关联，我们确定了两个最近发现的南部海洋饲养区的重要性驼背鲸以及影响鲸行行为的关键环境驱动因素。我们检测到鲸鱼之间的行为差​​异，利用两个相邻的喂养区（类似于2000公里分开），这可能是由动物试图有效地定位牺牲者的捕食性与每个栖息地的动态环境特征有效。我们观察了觅食行为的季节性模式，在夏季中间发生了峰值。鲸鱼还更集中地觅食，随着冰缘最近撤退的区域而越来越接近，表明这些领域的生产率提升。动物与海景的物理特征之间的关系，以及观察到的行为可塑性可能对南海的不断变化的这些鲸鱼的未来恢复有影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号