Visual and Acoustic Communication in Neotropical Birds: Diversity and Evolution of Signals

Barreira, Ana S.; García, Natalia C.

doi:10.1007/978-3-030-14280-3_8

Cited by 4 publications

(4 citation statements)

References 131 publications

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“…Low plumage lightness variation in urban exploiter species may favor species camouflage [29], as species with uniform plumage color can be less easily detected by humans or other predators [38,71]. Conversely, plumage lightness variation in urban avoiders may favor intra and interspecific communication by increasing conspicuousness [72][73][74]. In this study, urban avoider species such as the Fork-tailed Flycatcher (Tyrannus savana) and the Double-collared Seedeater (Sporophila caerulescens) had dark plumage in their dorsal parts, which probably enhances camouflage for protection from predators attacking from above or behind [38], whereas their light ventral plumage can enhance conspicuous signaling [73].…”

Section: Discussionmentioning

confidence: 99%

Nesting Site and Plumage Color Are the Main Traits Associated with Bird Species Presence in Urban Areas

Leveau

Ibáñez

2022

Animals

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Urban areas are expected to grow in the next decades, filtering bird species from the regional pool based on their life history traits. Although the impact of urbanization on traits such as diet, habitat and migratory behavior has been analyzed, their joint role with other traits related to plumage color has not yet been analyzed. Urban characteristics such as impervious surfaces, human presence and pollutants may be related to dark and uniform plumages. The objective of this study is to determine different bird species responses to urbanization using ordination analysis, and to characterize their life history traits combining information about diet, habitat and plumage color. Birds were surveyed along urban–rural gradients located in three cities of central Argentina. Species associations with urban characteristics were assessed through principal component analysis. Two axes were obtained: the first related positively to urban exploiters and negatively to urban avoiders, and a second axis related negatively to urban adapters. The scores of each axis were related to species traits through phylogenetic generalized least squares models. Species identified as ‘urban exploiters’ tended to nest in buildings and have uniform plumage, whereas those identified as ‘urban avoiders’ tended to be ground-nesting species with variable plumage. A third type, ‘urban adapters’, tended to be tree-nesting species with a low diet breadth, intermediate plumage lightness, low presence of plumage sexual dimorphism and high presence of iridescence. The results suggest that nest predation and habitat loss may exclude ground nesting birds from urban areas. The high density of pedestrians and domestic animals, such as cats and dogs, in urban centers may favor uniform plumages in birds that enhance camouflage.

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Section: Discussionmentioning

confidence: 99%

Nesting Site and Plumage Color Are the Main Traits Associated with Bird Species Presence in Urban Areas

Leveau

Ibáñez

2022

Animals

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“…Animal colours represent important communication signals for intraspecific and interspecific interactions, such as mate preferences and camouflage, respectively (Osorio & Vorobyev 2008; Kemp et al . 2014; Barreira & García 2019). Colours are the result of light reflected by pigments or from the differential scattering of light by integument nanostructures, which are known as structural colours (Mason 1923, 1926; Pérez i de Lanuza et al .…”

Section: Introductionmentioning

confidence: 99%

“…Among pigments, the most common are melanins, which produce dark colours (e.g. grey, black and brown) and are synthesised by animals (Barreira & García 2019). Carotenoids are the second most common pigment; they produce orange, yellow and red colours, and are obtained from food by animals (McGraw 2006; Cuthill et al .…”

Section: Introductionmentioning

confidence: 99%

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United colours of the city: A review about urbanisation impact on animal colours

Leveau

2021

Austral Ecology

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Habitat colour gradients characterise urban areas: from green prevailing in the least urbanised areas dominated by lawn, shrubs and trees, to grey characteristic of heavily urbanised areas dominated by impervious surfaces. These changes may promote modifications in community composition and intraspecific colour changes in species occurring in urban areas. This review's objectives were: (1) to analyse reported patterns of animal colour change between urban and non‐urban areas; (2) to identify the main mechanisms underlying those patterns; and (3) to determine research bias and suggest future research directions. A bibliometric on animal colour patterns using Scopus resulted in 62 studies being found and their findings assessed. Most studies were focused on birds (N = 38) and were conducted in the Northern Hemisphere (N = 55), with 90% analysing intraspecific colour changes. Intraspecific studies found three main patterns: (1) urban melanism, with polymorphic species of insects, birds and reptiles showing darker colouration in urban areas than in non‐urban areas; (2) urban dullness, with carotenoid‐based plumage colours being duller in urban than in rural areas; and (3) a reduction in conspicuousness of sexually selected plumages in urban areas. Interspecific studies suggested that urban areas are filters for animal colours, promoting the colonisation of those species that increase camouflage or exhibit warning colours to predators. More studies are needed in the Southern Hemisphere and at the interspecific level to determine the role of animal colours in urban colonisation.

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Urbanization alters the geographic patterns of passerine plumage color in China

Yu,

Duan,

Zhang

et al. 2024

Landscape and Urban Planning

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Visual and Acoustic Communication in Neotropical Birds: Diversity and Evolution of Signals

Cited by 4 publications

References 131 publications

Nesting Site and Plumage Color Are the Main Traits Associated with Bird Species Presence in Urban Areas

Nesting Site and Plumage Color Are the Main Traits Associated with Bird Species Presence in Urban Areas

United colours of the city: A review about urbanisation impact on animal colours

Urbanization alters the geographic patterns of passerine plumage color in China

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