Singing in a silent spring: Birds respond to a half-century soundscape reversion during the COVID-19 shutdown

Science, Journal Year: 2020, Volume and Issue: 370(6516), P. 575 - 579

Published: Sept. 24, 2020

Songbirds reclaim favored frequencies When severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic lockdowns were instituted across entire countries, human activities ceased in an unprecedented way. Derryberry et al. found that the reduction traffic sound San Francisco Bay Area of California to levels not seen for half a century led shift song frequency white-crowned sparrows (see Perspective by Halfwerk). This was especially notable because human-produced noise occurs within range interferes with highest performance and most effective song. Thus, our “quiet” allowed birds quickly fill space. Science , this issue p. 575 ; see also 523

Language: Английский

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Which Traits Influence Bird Survival in the City? A Review

Land, Journal Year: 2021, Volume and Issue: 10(2), P. 92 - 92

Published: Jan. 20, 2021

Urbanization poses a major threat to biodiversity worldwide. We focused on birds as well-studied taxon of interest, in order review literature traits that influence responses urbanization. 226 papers were published between 1979 and 2020, aggregate information five groups have been widely studied: ecological traits, life history, physiology, behavior genetic traits. Some robust findings trait changes individual species well bird communities emerge. A lack specific food shelter resources has led the urban community being dominated by generalist species, while specialist show decline. Urbanized differ behavioral showing an increase song frequency amplitude, bolder behavior, compared rural populations same species. Differential predatory pressure results history including prolonged breeding duration, increases clutch brood size compensate for lower survival. Other species-specific include hormonal state, body differences from populations. identify gaps research, with paucity studies tropical cities need greater examination persistence success native vs. introduced

Language: Английский

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The Effects of Landscape Urbanization on the Gut Microbiome: An Exploration Into the Gut of Urban and Rural White-Crowned Sparrows

Frontiers in Ecology and Evolution, Journal Year: 2018, Volume and Issue: 6

Published: Sept. 24, 2018

Urban habitats present new ecological and evolutionary challenges for animals. Noise infrastructure often change behavior community composition, with potential physical costs such as decreased condition. However, the underlying mechanisms driving these patterns are virtually unknown. One driver of condition within a species is diversity gut microbiome. Here, we investigate how urban habitat affects microbiome White-crowned Sparrows (Zonotrichia leucophrys) using spatial analyses land cover (impervious, scrub, grass, trees) at regional level territory in San Francisco, CA nearby rural Point Reyes, CA. We hypothesized that urbanization microbial composition through direct effects on diet and/or indirect environmental effects. measured from 16s rRNA sequences amplified cloacal swabs. find microbiomes significantly different, more diverse than This relationship may be due to variable landscape compared habitats, which mainly composed native scrub. do not support impervious affecting microbiome, but precise show higher tree correlates increased alpha relative abundances taxa (Unifrac beta diversity). Although some studies physiology, our measures body indicate strong relationship. Our results highlight changes affect animals an ever-urbanizing world, provides baseline future anthropogenic communities multiple levels.

Language: Английский

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Ecoacoustics: A Quantitative Approach to Investigate the Ecological Role of Environmental Sounds

Mathematics, Journal Year: 2018, Volume and Issue: 7(1), P. 21 - 21

Published: Dec. 26, 2018

Ecoacoustics is a recent ecological discipline focusing on the role of sounds. Sounds from geophysical, biological, and anthropic environment represent important cues used by animals to navigate, communicate, transform unknown environments in well-known habitats. are utilized evaluate relevant parameters adopted as proxies for biodiversity, environmental health, human wellbeing assessment due availability autonomous audio recorders quantitative metrics. an tool establish innovative biosemiotic narrative ensure strategic connection between nature humanity, help in-situ field remote-sensing surveys, develop long-term monitoring programs. Acoustic entropy, acoustic richness, dissimilarity index, complexity indices (ACItf ACIft their evenness), normalized difference soundscape ecoacoustic event detection identification routine, fractal structure some most popular successfully applied ecoacoustics. offers great opportunities investigate across full range operational scales (from individual species landscapes), but requires implementation its foundations metrics ameliorate competency physical, sonic contexts.

Language: Английский

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Effects of light and noise pollution on avian communities of European cities are correlated with the species’ diet

Scientific Reports, Journal Year: 2023, Volume and Issue: 13(1)

Published: March 16, 2023

Abstract Urbanization affects avian community composition in European cities, increasing biotic homogenization. Anthropic pollution (such as light at night and noise) is among the most important drivers shaping bird use urban areas, where species are mainly attracted by greenery. In this study, we collected data on 127 breeding 1349 point counts distributed along a gradient of urbanization fourteen different cities. The main aim was to explore effects anthropic city characteristics, communities, regarding species’ diet composition. green cover areas increased number insectivorous omnivorous species, while slightly decreasing overall heterogeneity communities. heterogeneity—a measure evenness considering relative coverage grass, shrubs trees—was positively correlated with richness granivorous, insectivorous, level assemblages. Additionally, communities were associated species' diet. Overall, negatively affected not affecting granivorous species. noise pollution, contrast, significantly changes Our results offer some tips planners, managers, ecologists, challenge producing more eco-friendly cities for future.

Language: Английский

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Acoustic adaptation to city noise through vocal learning by a songbird

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2018, Volume and Issue: 285(1888), P. 20181356 - 20181356

Published: Oct. 10, 2018

Anthropogenic noise imposes novel selection pressures, especially on species that communicate acoustically. Many animals—including insects, frogs, whales and birds—produce sounds at higher frequencies in areas with low-frequency pollution. Although there is support for animals changing their vocalizations real time response to (i.e. immediate flexibility), other evolutionary mechanisms learn remain largely unexplored. We hypothesize cultural signal structures less masked by a mechanism of acoustic adaptation anthropogenic noise. test this hypothesis presenting nestling white-crowned sparrows ( Zonotrichia leucophyrs ) less-masked (higher-frequency) more-masked (lower-frequency) tutor songs either during playback (noise-tutored treatment) or different from (control treatment). As predicted, we find noise-tutored males significantly more often, whereas control show no copying preference, providing strong experimental Further, reproduce than tutor, indicating distinct increase transmission noisy environment. Notably, achieve lower performance tutors, suggesting potential costs sexual framework.

Language: Английский

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Aircraft sound exposure leads to song frequency decline and elevated aggression in wild chiffchaffs

Journal of Animal Ecology, Journal Year: 2019, Volume and Issue: 88(11), P. 1720 - 1731

Published: Aug. 21, 2019

The ubiquitous anthropogenic low-frequency noise impedes communication by masking animal signals. To overcome this barrier, animals may increase the frequency, amplitude and delivery rate of their acoustic signals, making them more easily heard. However, a direct impact intermittent, high-level aircraft on birds' behaviour living close to runway has not been studied in detail. We recorded common chiffchaffs Phylloscopus collybita songs near two airports nearby control areas, we measured sound levels territories at Manchester Airport. song recordings were made between movements, when ambient similar airport populations. also conducted playback experiments population test salience airport, specific songs. In contrast general pattern increased frequency noisy show that negative relationship exposure level frequency. Experimental data respond aggressively playback. Since decrease results overlap with noise, these findings cannot be explained as an adaptation improve communication. aggression suggest chiffchaffs, like humans, might affected behaviourally extreme pollution. These should influence environmental assessments for expansions globally.

Language: Английский

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Noise impairs the perception of song performance in blue tits and increases territorial response

Animal Behaviour, Journal Year: 2024, Volume and Issue: 215, P. 131 - 141

Published: Aug. 2, 2024

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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Galápagos yellow warblers differ in behavioural plasticity in response to traffic noise depending on proximity to road

Animal Behaviour, Journal Year: 2025, Volume and Issue: unknown, P. 123119 - 123119

Published: March 1, 2025

Language: Английский

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