Anthropogenic noise and habitat structure shaping dominant frequency of bird sounds along urban gradients

iScience, Journal Year: 2024, Volume and Issue: 27(2), P. 109056 - 109056

Published: Jan. 30, 2024

The shifts of bird song frequencies in urbanized areas provide a unique system to understand avian acoustic responses urbanization. Using passive monitoring and automatic sound recognition technology, we explored the frequency variations six common urban species their associations with habitat structures. Our results demonstrated that were significantly higher than those peri-urban rural areas. Anthropogenic noise structure identified as crucial factors shaping space for birds. We found noise, urbanization, open understory spaces are contributing increase dominant sounds. However, variables such vegetation density tree height can potentially slow down this upward trend. These findings offer essential insights into behavioral response birds variety forest habitats, implications ecosystem management restoration.

Language: Английский

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Urbanization Influences on the Song Diversity of the Eurasian Nuthatch (Sitta europaea) in Northeast China

Diversity, Journal Year: 2025, Volume and Issue: 17(2), P. 103 - 103

Published: Jan. 30, 2025

The continuous advancement of urbanization and the expansion cities inevitably have certain impacts on urban wildlife. Birds are a highly visible group wildlife, widely distributed sensitive to environmental changes. Birds’ song is an important way conveying information; effective conveyance transmission bird songs crucial for attracting mates successful reproduction. However, impact development many birds remains unknown. This study compared differences in characteristics (maximum frequency, minimum main duration) Eurasian Nuthatch (Sitta europaea) at six different research sites with levels urbanization, order explore response patterns urbanization. results indicate that leads reduction avian diversity convergence parameters. life history stages show inconsistent responses During overwintering period, there no significant frequency duration Nuthatch’s song, almost maximum as Forest Botanical Garden (FBG) shows some other sites. breeding while parameters exhibit varying degrees differences. Comprehensive analysis reveals has across stages. diversity, pronounced homogenization effect; during birds’ more diverse, only showing effect. It speculated may strike balance between adapting survival

Language: Английский

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Exposure to road traffic noise and behavioral problems in Chinese schoolchildren: A cross-sectional study

The Science of The Total Environment, Journal Year: 2022, Volume and Issue: 837, P. 155806 - 155806

Published: May 11, 2022

Language: Английский

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Difference in acoustic responses to urbanisation in two African passerines

Ostrich, Journal Year: 2024, Volume and Issue: 95(1), P. 32 - 44

Published: March 8, 2024

AbstractModification of ecosystems as a consequence urbanisation alters natural habitat structures and soundscapes, creating constraints for vocal communication in animals. Birds are able to adjust their vocalisation the prevailing acoustic features habitat. As such, sounds have been shown reflect level anthropogenic disturbances across landscapes. While effect single disturbance like ambient noise on birds' is widely investigated, combined effects various remain less explored. We tested urban physical vocalisations two African passerines, Common Bulbul Pycnonotus barbatus Northern Grey-headed Sparrow Passer griseus. predicted that (i) both species would increase minimum frequency avoid masking by noise, (ii) decrease maximum evade distortion structures, (iii) components significant vocalisations, (iv) change or will lead corresponding bandwidth. For Bulbul, increased significantly increased, but did not response structures. Sparrow, show decreased increased. find any evidence adjustment either species. A resulted bandwidth each Our findings highlight how same traits different songbird can be affected differently novel selective pressures arise environments.Différence dans les réponses acoustiques à l'urbanisation chez deux passereaux africainsLa modification des écosystèmes due altère de l'habitat naturel et l'environnement sonore, créant contraintes pour la vocale animaux. Les oiseaux sont capables d'ajuster leur aux caractéristiques dominantes Il donc été démontré que leurs sons reflètent le niveau perturbations anthropiques paysages. Alors l'effet d'une seule perturbation anthropique comme bruit ambiant sur est largement étudié, effets combinés diverses restent moins explorés. Nous avons testé uniques du anthropogénique physiques urbaines africains, commun Moineau tête grise prédit espèces: augmenteraient fréquence minimale éviter masquage par ambiant, diminueraient maximale distorsion physiques, composantes auraient un effet combiné significatif changement ou conduirait correspondant largeur bande vocalisations. Pour commun, augmenté manière significative lorsque augmenté, mais n'a pas réagi physiques. grise, répondu au diminué ont augmenté. n'avons trouvé aucune preuve d'un l'ajustement espèces. Le entraîné rétrécissement Nos résultats mettent en évidence comment mêmes différentes espèces d'oiseaux chanteurs peuvent être affectés différemment nouvelles pressions sélectives acoustique qui surviennent environnements urbains.Keywords: noisebioacousticsPasser griseusPycnonotus barbatussongbirdsurban structuresvocal adjustmentvocalisation

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Spatiotemporal characteristics and influencing factors of animal soundscape in urban green spaces

Biodiversity Science, Journal Year: 2023, Volume and Issue: 31(1), P. 22359 - 22359

Published: Jan. 1, 2023

Background & Aims: The animal community is a key element constituting the urban green-space ecosystem.As an important ecological component of wild communities, soundscape great significance in guiding landscape design and biodiversity conservation measures.This paper examined 67 articles from core collection Web Science published between 2005 2022 to comprehensively analyze spatiotemporal patterns influences on soundscapes green spaces.Findings: space was influenced by environmental-spatial gradients vegetation spatial structure.Animal sound diversity inversely correlated with altitude, latitude, urbanization degree, also related type height.Phenology showed diurnal, seasonal, annual variation, including characteristics such as dawn dusk avian choruses, insect amphibians nocturnal other aspects animals' seasonal vocalization patterns.The factors that affect thus include mainly vegetation, environment, anthropogenic interference, self-driving animals.Prospects: Despite being one hotspots current ecology research, research faces •综述• 中国野生脊椎动物鸣声监测与生物声学研究专题

Language: Английский

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Soundscapes in Urban Green Spaces of a Megacity Across an Urban–Rural Gradient: A Case Study of Shanghai

Forests, Journal Year: 2024, Volume and Issue: 15(11), P. 1868 - 1868

Published: Oct. 24, 2024

Urban soundscapes are valuable indicators of urban biodiversity and ecosystem health. This study investigated the spatial temporal characteristics in megacity green spaces their relationship with environment. An acoustic index was formulated calculated using long-term data from Shanghai’s spaces. The results show a significant increase during spring summer, peaking these periods, while decrease observed December to February, dominated by abiotic sounds. Diurnal variations indicate rapid at sunrise, reflecting heightened avian activity dawn chorus. Human interference center limited activity, whereas outer suburbs, more natural environments, supported greater richness.

Language: Английский

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Structural and acoustic properties of urbanized landscapes adversely affect bird communities in a tropical environment

Frontiers in Ecology and Evolution, Journal Year: 2024, Volume and Issue: 12

Published: Nov. 19, 2024

Introduction The rural-urban gradient serves as a valuable context for investigating the impact of urbanization on biodiversity. While previous studies have demonstrated shifts in bird communities along this gradient, our understanding specific impacts individual urban components such man-made physical structures and anthropogenic noise remains limited, more so, Afro-tropical environments. Method Employing point count method, we recorded birds also determined levels structures, across fifteen sites Jos Plateau, Nigeria. We then investigated variations assessed influence two -anthropogenic populations. Results There was decline abundance species richness gradient. Similarly, common to all categories (species present at least one rural, suburban, urban) exhibited decrease abundance. suburban area showed greater similarity community composition than rural area. Notably, level development increased, numerous associated with undisturbed gradually vanished. Both significant negative effects richness. Interestingly, did not find evidence suggest that dependent structures. Anthropogenic had relationship Discussion provide respond negatively urbanization-related increase That independent suggests reserved areas, including green areas fewer human activities may equally be affected by are human-dominated if sources near. Overall, research underscores detrimental consequences habitat modification, particularly alteration structural acoustic properties, emphasizes importance preserving habitats implementing ecologically mindful planning strategies safeguard Afro-tropics.

Language: Английский

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Urban Low-Rise Residential Areas Provide Preferred Song Post Sites for a Resident Songbird

Animals, Journal Year: 2022, Volume and Issue: 12(18), P. 2436 - 2436

Published: Sept. 15, 2022

Urbanization is expanding rapidly worldwide, and brings additional selection pressure on animals. The song differences between urban rural songbirds have been widely verified, but the effects of morphological variation long-settled birds poorly explored. Here, we investigated distribution a common resident songbird-the oriental magpie-robin (Copsychus saularis) three morphology types (i.e., park, low-rise residential area, high-rise area). results indicated that population density in areas was significantly higher than parks, while it lowest areas. Males had greater length, syllable numbers, frequency bandwidth, diversity those parks. were mainly related to habitat types, independent singing height perch type. Our findings suggest may provide preferred post sites for magpie-robin, which well-adapted building morphology, rejects emerging buildings. Future studies are needed assess more animals determine morphologies conducive enhancing biodiversity encouraging settle

Language: Английский

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Exposure to Road Traffic Noise and Behavioral Problems in Chinese Schoolchildren: A Cross-Sectional Study

SSRN Electronic Journal, Journal Year: 2022, Volume and Issue: unknown

Published: Jan. 1, 2022

Background: Transportation noise is a secondary environmental stressor after air pollution. However, no studies investigated the association between residential road traffic and behavioral problems among schoolchildren in China.Objective: To investigate exposure to at home development Chinese schoolchildren.Methods: From January June 2017, we screened 3,236 children aged 7-13 years Guangzhou (Guangdong, China) from first investigation of an ongoing school-based cohort study with complete information on geolocation. Residential levels were assessed using validated modeling method different periods day, including daytime (Lday), nighttime (Lnight), weighted 24-hr (Ldn). The annual mean concentration nitrogen dioxide was also modeled our study. Behavioral by parent-rated Strengths Difficulties Questionnaire (SDQ). Generalized linear mixed models utilized estimate associations problems.Results: In main adjusted model, 10-dB increase Ldn associated 0.27 [95% confidence interval (CI): 0.04, 0.50], 0.08 (95% CI: 0.00, 0.17), 0.01, 0.16) increases three subscales score for total difficulties score, emotional problems, conduct respectively. same abnormal [odds ratio (OR)=1.22, 95%CI: 0.99, 1.51], (OR=1.19, 0.98, 1.44), (OR=1.28, 95%CI:1.02, 1.61). Results Lday ­were more pronounced than Lnight. NO2 might not significantly change problems. Our estimates generally robust several sensitivity analyses.Conclusion: be related increased such as symptoms

Language: Английский

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