Flight initiation distance differs among eumelanin‐based color morphs in feral pigeons DOI Creative Commons
Adrien Frantz,

M. Baneux,

L. Pichon

et al.

Journal of Zoology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Abstract Organisms facing anthropogenic activities usually exhibit phenotypic responses assumed to enhance coping with disturbance. These include a decreasing degree of reaction toward potentially risky situations (“behavioral tolerance”) increasing Though melanin is associated many traits, including pigmentation and behavior, the potential relationship between behavioral tolerance has never been explored. Such may result from either direct association behavior (e.g., genetic correlation) or indirectly through coloration‐dependent behavior‐modulating factor differential predation human preferences in cities color morphs). Feral pigeons ( Columba livia ) represent an ideal biological system test for these hypotheses, due their presence worldwide, considerable variation eumelanin‐based coloration, ranging white black plumage, close proximity humans. We measured Flight Initiation Distance (FID, classically used assessment) feral 4 different morphs sites differing urbanization rate pedestrian traffic within restricted scale city center (Paris). Urbanization had no effect on FID, maybe because small spatial considered. FID varied coloration: lower (104.6 cm; i.e., higher tolerance) than darker (232.3 cm Blue bar, 184.4 T‐pattern & Checker, 181.8 Spread exact underlying causes remain be identified, we propose possible mechanisms this that investigated future work.

Language: Английский

Urbanization alters the geographic patterns of passerine plumage color in China DOI

Jiehua Yu,

Haoting Duan,

Baoming Zhang

et al.

Landscape and Urban Planning, Journal Year: 2024, Volume and Issue: 248, P. 105101 - 105101

Published: April 26, 2024

Language: Английский

Citations

5
Colourful Urban Birds: Bird Species Successful in Urban Environments Have More Elaborate Colours and Less Brown DOI
Juan Diego Ibáñez‐Álamo, Kaspar Delhey, Lucía Izquierdo

et al.

Ecology Letters, Journal Year: 2025, Volume and Issue: 28(4)

Published: April 1, 2025

Rapidly expanding urbanisation presents significant challenges to wildlife. Consequently, many studies have investigated the impact of on diverse organisms. However, despite ecological relevance animal colouration, its association with remains poorly understood. Using a global database, we computed an index urban success for 1287 bird species and quantified estimates plumage colour. Our analyses showed that birds do well in environments are more likely be blue, dark grey black, less brown or yellow. After considering phylogenetic relatedness, only effects yellow remained significant. Species high also exhibit elaborate colours, but not higher sexual dichromatism. We provide eco-evolutionary explanations these results. Assemblage-level did support colour homogenisation hypothesis: Urban communities were colour-diverse after accounting richness. findings suggest colours part urban-associated syndrome.

Language: Английский

Citations

0
Flight initiation distance differs among eumelanin‐based color morphs in feral pigeons DOI Creative Commons
Adrien Frantz,

M. Baneux,

L. Pichon

et al.

Journal of Zoology, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 8, 2024

Abstract Organisms facing anthropogenic activities usually exhibit phenotypic responses assumed to enhance coping with disturbance. These include a decreasing degree of reaction toward potentially risky situations (“behavioral tolerance”) increasing Though melanin is associated many traits, including pigmentation and behavior, the potential relationship between behavioral tolerance has never been explored. Such may result from either direct association behavior (e.g., genetic correlation) or indirectly through coloration‐dependent behavior‐modulating factor differential predation human preferences in cities color morphs). Feral pigeons ( Columba livia ) represent an ideal biological system test for these hypotheses, due their presence worldwide, considerable variation eumelanin‐based coloration, ranging white black plumage, close proximity humans. We measured Flight Initiation Distance (FID, classically used assessment) feral 4 different morphs sites differing urbanization rate pedestrian traffic within restricted scale city center (Paris). Urbanization had no effect on FID, maybe because small spatial considered. FID varied coloration: lower (104.6 cm; i.e., higher tolerance) than darker (232.3 cm Blue bar, 184.4 T‐pattern & Checker, 181.8 Spread exact underlying causes remain be identified, we propose possible mechanisms this that investigated future work.

Language: Английский

Citations

0