Biosonar behaviour of free-ranging porpoises
文献类型：期刊论文
| 作者 | Akamatsu, T; Wang, D; Wang, KX; Naito, Y |
| 刊名 | PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
 |
| 出版日期 | 2005-04-22 |
| 卷号 | 272期号:1565页码:797-801 |
| 关键词 | echolocation cetacean finless porpoise sonar dolphin |
| ISSN号 | 0962-8452 |
| 通讯作者 | Akamatsu, T, Natl Res Inst Fisheries Engn, Ibaraki 3140421, Japan |
| 中文摘要 | Detecting objects in their paths is a fundamental perceptional function of moving organisms. Potential risks and rewards, such as prey, predators, conspecifics or non-biological obstacles, must be detected so that an animal can modify its behaviour accordingly. However, to date few studies have considered how animals in the wild focus their attention. Dolphins and porpoises are known to actively use sonar or echolocation. A newly developed miniature data logger attached to a porpoise allows for individual recording of acoustical search efforts and inspection distance based on echolocation. In this study, we analysed the biosonar behaviour of eight free-ranging finless porpoises (Neophocaena phocaenoides) and demonstrated that these animals inspect the area ahead of them before swimming silently into it. The porpoises inspected distances up to 77 in, whereas their swimming distance without using sonar was less than 20 in. The inspection distance was long enough to ensure a wide safety margin before facing real risks or rewards. Once a potential prey item was detected, porpoises adjusted their inspection distance from the remote target throughout their approach. |
| 英文摘要 | Detecting objects in their paths is a fundamental perceptional function of moving organisms. Potential risks and rewards, such as prey, predators, conspecifics or non-biological obstacles, must be detected so that an animal can modify its behaviour accordingly. However, to date few studies have considered how animals in the wild focus their attention. Dolphins and porpoises are known to actively use sonar or echolocation. A newly developed miniature data logger attached to a porpoise allows for individual recording of acoustical search efforts and inspection distance based on echolocation. In this study, we analysed the biosonar behaviour of eight free-ranging finless porpoises (Neophocaena phocaenoides) and demonstrated that these animals inspect the area ahead of them before swimming silently into it. The porpoises inspected distances up to 77 in, whereas their swimming distance without using sonar was less than 20 in. The inspection distance was long enough to ensure a wide safety margin before facing real risks or rewards. Once a potential prey item was detected, porpoises adjusted their inspection distance from the remote target throughout their approach. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 学科主题 | Biology; Ecology; Evolutionary Biology |
| 类目[WOS] | Biology ; Ecology ; Evolutionary Biology |
| 研究领域[WOS] | Life Sciences & Biomedicine - Other Topics ; Environmental Sciences & Ecology ; Evolutionary Biology |
| 关键词[WOS] | NORTHERN ELEPHANT SEALS ; NEOPHOCAENA-PHOCAENOIDES ; ECHOLOCATION SIGNALS ; DOLPHINS ; SYSTEM |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000229783700004 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/9234]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.Natl Res Inst Fisheries Engn, Ibaraki 3140421, Japan 2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 3.Natl Inst Polar Res, Tokyo 1738515, Japan |
| 推荐引用方式 GB/T 7714 | Akamatsu, T,Wang, D,Wang, KX,et al. Biosonar behaviour of free-ranging porpoises[J]. PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,2005,272(1565):797-801. |
| APA | Akamatsu, T,Wang, D,Wang, KX,&Naito, Y.(2005).Biosonar behaviour of free-ranging porpoises.PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES,272(1565),797-801. |
| MLA | Akamatsu, T,et al."Biosonar behaviour of free-ranging porpoises".PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES 272.1565(2005):797-801. |
入库方式： OAI收割
来源：水生生物研究所
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