Tawny Owl Strix aluco Distribution in the Urban Landscape: The Effect of Habitat, Noise and Light Pollution

IF 0.8 4区 生物学 Q3 ORNITHOLOGY Acta Ornithologica Pub Date : 2023-06-14 DOI:10.3161/00016454AO2022.57.2.005
Giuseppe Orlando, D. Chamberlain
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引用次数: 1

Abstract

Abstract. At present, the intensification of urban landcover is one of the most critical threats for biodiversity. Common side-effects of urban sprawl are anthropogenic noise and artificial light at night (ALAN). Although their negative effects have often been described, little research has concerned nocturnal wildlife, especially avian predators. Here, we investigated the effect of urban and tree cover, traffic noise and ALAN on the presence of the Tawny Owl Strix aluco, a common night-active predator in Europe. We conducted playback surveys along an urban gradient in Turin (Italy) to detect species presence. Traffic noise was measured in the field, the cover of built-up and (semi-)natural areas was estimated using GIS and multiple measures of ALAN were acquired from a light pollution map. We modelled species presence as a function of each environmental predictor and we found a significant negative relationship with light pollution, which was the foremost urban stressor affecting Tawny Owl occurrence. Our findings suggest that Tawny Owls are more likely to be found in less artificially illuminated areas and that their distribution in urban areas is not only influenced by noise pollution and the availability of suitable habitat, but also the intensity of ALAN. Therefore, light pollution could be a key driver of the spatial distribution of Tawny Owls and potentially other nocturnal species in urban ecosystems.
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城市景观中褐猫头鹰条纹的分布:栖息地、噪声和光污染的影响
摘要目前,城市土地覆盖的加剧是对生物多样性最严重的威胁之一。城市蔓延的常见副作用是人为噪音和夜间人工照明(ALAN)。尽管人们经常描述它们的负面影响,但很少有研究涉及夜间野生动物,尤其是鸟类捕食者。在这里,我们调查了城市和树木覆盖、交通噪音和ALAN对欧洲常见的夜间活动捕食者Tawny Owl Strix aluco存在的影响。我们沿着都灵(意大利)的城市梯度进行了回放调查,以检测物种的存在。现场测量了交通噪声,使用GIS估计了建成区和(半)自然区的覆盖率,并从光污染地图中获得了ALAN的多种测量值。我们将物种的存在建模为每个环境预测因子的函数,我们发现光污染与光污染存在显著的负相关关系,而光污染是影响Tawny Owl发生的最主要的城市压力源。我们的研究结果表明,Tawny Owls更有可能在人工照明较少的地区发现,它们在城市地区的分布不仅受到噪音污染和合适栖息地的影响,还受到ALAN强度的影响。因此,光污染可能是城市生态系统中褐猫头鹰和其他潜在夜间物种空间分布的关键驱动因素。
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来源期刊
Acta Ornithologica
Acta Ornithologica 生物-鸟类学
CiteScore
2.10
自引率
0.00%
发文量
14
审稿时长
>12 weeks
期刊介绍: Publishes scientific papers (original research reports, reviews, short notes, etc.) and announcements from all fields of ornithology. All manuscripts are peer-reviewed. Established in 1933 as Acta Ornithologica Musei Zoologici Polonici, since 1953 continued under the present title. Published twice a year by the Natura Optima Dux Foundation under the auspices of the Museum and Institute of Zoology, Polish Academy of Sciences.
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