Bird color and taxonomic diversity are negatively related to human disturbance in urban parks

Web Ecology, Journal Year: 2024, Volume and Issue: 24(1), P. 1 - 10

Published: Feb. 5, 2024

Abstract. Recently, studies have shown that highly urbanized areas are numerically dominated by birds with grey plumage, probably favoring camouflage impervious surfaces. However, patterns of bird color diversity in urban green remain unexplored. In parks, sites surrounded may be species, whereas parks pedestrians feed favor commensal which also plumage. Thus, we explore the relationship between environmental variables and taxonomic parks. Bird surveys were conducted twice fixed points six cities central Argentina. was assessed characterizing plumage coloration different parts body presence sexual dimorphism, polymorphism, iridescence. Then, richness (abundance-based) calculated species mean pairwise distance. Null models used to quantify richness-corrected diversity. increased green-area size, decreased increasing pedestrian traffic. Color car traffic, positively related size negatively Richness-corrected The abundance near centers yellow rural or small cities. but ceased area size. Therefore, increase mediated increases richness. clustered highest human disturbance, took advantage food discarded humans.

Language: Английский

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Microhabitat Selection by Ground-Foraging Birds in Urban Parks

Animals, Journal Year: 2025, Volume and Issue: 15(8), P. 1155 - 1155

Published: April 17, 2025

Urban parks are refuges for a diversity of birds in cities. Therefore, understanding the relationship between park structure and different bird species is essential to achieve nature-friendly planning management. However, selection foraging substrates by ground-feeding has been very little explored. The aim this study was analyze use urban Buenos Aires City, Argentina. Between December 2020 February 2021, 16 were visited. During each visit, focal observations individuals feeding on microhabitats made. For ground-foraging species, substrate then compared with its availability means contingency tests. A total 38 7823 attempts registered. most records Rufous-bellied Thrush (Turdus rufiventris), Eared Dove (Zenaida auriculata), Rufous Hornero (Furnarius rufus). Most foraged ground substrates. Several such as Picazuro Pigeon (Patagioenas picazuro), selected lawn bare ground. Monk Parakeet (Myiopsitta monachus) Cattle Tyrant (Machetornis rixosa) lawn, while Picui Ground (Columbina picui) Some Green-barred Woodpecker (Colaptes melanochloros) did not impermeable surfaces. results obtained revealed that only green cover necessary parks, but also other surfaces can favor native species.

Language: Английский

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Bird species present in urban parks are more colorful than urban avoiders: A test in the Argentinian Pampas

Avian Research, Journal Year: 2024, Volume and Issue: 15, P. 100161 - 100161

Published: Jan. 1, 2024

Bird plumage color has been assessed as a possible trait driving the presence of bird species in urban areas. Although some can see ultraviolet (UV) spectrum, mentioned studies did not take into account UV reflectance when characterizing plumage. This study aimed to use recent database colorfulness passerines that incorporated spectrum compare and other traits between parks rural areas Central-East Argentina. Birds were surveyed 51 6 cities during breeding non-breeding seasons. A list Passeriformes from was created, avoider created bibliography. Species body mass, clutch size, migratory status, nesting site, diet habitat breadth, colorfulness. total 85 detected regional pool, which 30 parks. present more colorful than only In addition, positively related their frequency breadth. Moreover, on trees buildings, whereas nested ground. The results obtained showed is significantly associated with

Language: Английский

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Green Corridor and Bioclimatic Comfort in the High-lands of Cusco-Peru, 2023

Lecture notes in networks and systems, Journal Year: 2025, Volume and Issue: unknown, P. 511 - 526

Published: Jan. 1, 2025

Language: Английский

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Could Road Structures Impact the Avian Community? A Study Case from the South Coast Remained Forest in Malang Region, East Java Province, Indonesia

Journal of Tropical Life Science, Journal Year: 2024, Volume and Issue: 14(02), P. 295 - 308

Published: July 17, 2024

The remaining tropical forest on the south coast of Malang region is one secluded areas that served as an important habitat for its biodiversity, particularly avians. Nevertheless, presence road structure crosses over might impact avian communities, which needs to be investigated. survey was conducted investigate diversity, community profiles, abundance, and feeding guild based two different ecosystem patches (on roads versus outside structures) during January–April 2022. audiovisual encounter methods were performed surveys a total ten sampling points. Avian species identified using field guides where conservation status national regulation (P106 KLHK), CITES, IUCN Redlist. comparison through richness analyzed Venn Diagrams predicted rarefaction interpolation curves INEXT packages. Additionally, sizes abundance investigated α-diversity parameter index, determined by five diet guilds. In total, 2536 individuals from 67 species, 34 families, 13 orders found survey. communities richer structure, but their qualitatively reveals both showed relatively good condition. Overall, structures generate positive (unique patches) negative (physical barriers could disrupt natural ecological processes) impacts diversity. light these, sustainable management action plans urgently needed prevent effects posed structure.

Language: Английский

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Soluções Baseadas na Natureza para Mitigar o Calor Urbano: a Eficácia dos Corredores Verdes em Medellín, Colômbia

Periódico Técnico e Científico Cidades Verdes, Journal Year: 2024, Volume and Issue: 12(36)

Published: July 20, 2024

Este estudo aborda a influência das mudanças climáticas na dinâmica da paisagem urbana em Medellín e no Vale do Aburrá, destacando vulnerabilidade cidade eventos climáticos extremos devido à escassez de recursos financeiros para implementar medidas eficazes adaptação mitigação. A topografia única região, com um vale alongado, encostas picos colinas, influencia qualidade paisagística presença vegetação, mas também contribui formação ilhas calor urbano aumento poluição atmosférica. análise realizada utilizando o método deriva destaca interação entre topografia, infraestrutura as respostas socioambientais locais, evidenciando necessidade compreender adaptativas comunidades locais eficácia estratégias mitigação diante climáticas. Diante disso, ressalta importância Soluções Baseadas Natureza (SBN) como uma fundamentais enfrentar climáticas, relevância dos corredores verdes promoção sustentabilidade melhoria vida urbana. O trabalho busca contribuir informações que subsidiem implementação eficazes, levando consideração diversidade socioeconômica variada região.

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