期刊
PROCEEDINGS OF THE ROYAL SOCIETY B-BIOLOGICAL SCIENCES
卷 282, 期 1811, 页码 -出版社
ROYAL SOC
DOI: 10.1098/rspb.2015.0468
关键词
olfactory maps; oceanic navigation; scale invariance; Levy flights; movement ecology
资金
- Biotechnology and Biological Sciences Research Council (UK)
- Italian Ministry of Environment
- LIPU-UK
- Portuguese Foundation for Science and Technology [SFRH/BD/21557/2005, SFRH/BPD/63825/2009, SFRH/BPD/85024/2012]
- IBAs by SPEA [LIFE04 NAT/PT/000213]
- FAME by SPEA [2009-1/089]
- Critical Ecosystems partnership fund
- BBSRC [BBS/E/C/00005195] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BBS/E/C/00005195] Funding Source: researchfish
- Fundação para a Ciência e a Tecnologia [SFRH/BPD/63825/2009, SFRH/BD/21557/2005] Funding Source: FCT
Homing studies have provided tantalizing evidence that the remarkable ability of shearwaters (Procellariiformes) to pinpoint their breeding colony after crossing vast expanses of featureless open ocean can be attributed to their assembling cognitive maps of wind-borne odours but crucially, it has not been tested whether olfactory cues are actually used as a system for navigation. Obtaining statistically important samples of wild birds for use in experimental approaches is, however, impossible because of invasive sensory manipulation. Using an innovative non-invasive approach, we provide strong evidence that shearwaters rely on olfactory cues for oceanic navigation. We tested for compliance with olfactory-cued navigation in the flight patterns of 210 shearwaters of three species (Cory's shearwaters, Calonectris borealis, North Atlantic Ocean, Scopoli's shearwaters, C. diomedea Mediterranean Sea, and Cape Verde shearwaters, C. edwardsii, Central Atlantic Ocean) tagged with high-resolution GPS loggers during both incubation and chick rearing. We found that most (69%) birds displayed exponentially truncated scalefree (Levy-flight like) displacements, which we show are consistent with olfactory-cued navigation in the presence of atmospheric turbulence. Our analysis provides the strongest evidence yet for cognitive odour map navigation in wild birds. Thus, we may reconcile two highly disputed questions in movement ecology, by mechanistically connecting Levy displacements and olfactory navigation. Our approach can be applied to any species which can be tracked at sufficient spatial resolution, using a GPS logger.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据