气候变化领域集成服务门户(CCPortal): Acoustic and visual data of bottlenose dolphin (Tursiops spp.) foraging vocalizations, boat presence and noise levels in the Moray Firth in 2012-2013

CCPortal

DOI	https://doi.org/10.1594/PANGAEA.837769
	Acoustic and visual data of bottlenose dolphin (Tursiops spp.) foraging vocalizations, boat presence and noise levels in the Moray Firth in 2012-2013
	Pirotta; Enrico; Merchant; Nathan D; Thompson; Paul M; Barton; Tim R; Lusseau; David
发布日期	2015-11-03
数据集类型	dataset
英文简介	Assessments of anthropogenic impacts on marine wildlife often concentrate on large-scale displacement. However, changes in the activity patterns of animals that do not flee could also affect their energy balance. Increasing boat traffic raises concerns for exposed marine mammals. Understanding risk perception is critical for effective mitigation and management, but it is hard to disentangle the effect of noise, physical presence of boats, and context. We used passive acoustic techniques to quantify how boat disturbance affected bottlenose dolphin foraging activity, and characterized the conditions influencing responses. To account for potential masking effects of boat noise on foraging vocalizations (buzzes), we developed a novel procedure to estimate the relationship between buzz detection probability and noise levels in particular 1/3 octave bands. Bayesian hierarchical modeling was then used to assess the effect of boat presence on buzz occurrence, as well as potential interactions with noise level, location, year, day, hour, dolphin group size, and boat type and number. Our results indicate that boat presence was associated with a short-term 49% reduction in foraging activity, but there was no relationship with noise level. Differences between sites and between years suggested a variable susceptibility depending on foraging conditions. This effect increased for increasing number of boats and depended on boat type. This is the first study conclusively showing that boat physical presence, and not just noise, plays a large role in disturbance.
空间范围	Median Latitude: 57.655125 * Median Longitude: -3.969075 * South-bound Latitude: 57.587800 * West-bound Longitude: -4.103900 * North-bound Latitude: 57.688700 * East-bound Longitude: -3.894000
时间范围	2012-07-20T16:20:00 - 2013-07-01T01:18:00
语种	英语
国家	国际
学科大类	气候变化
学科子类	气候变化
文献类型	数据集
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/215485
推荐引用方式 GB/T 7714	Pirotta,Enrico,Merchant,et al. Acoustic and visual data of bottlenose dolphin (Tursiops spp.) foraging vocalizations, boat presence and noise levels in the Moray Firth in 2012-2013.2015-11-03.https://doi.org/10.1594/PANGAEA.837769.