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Leucistic plumage a...
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Camacho, CarlosLund University,Lunds universitet,Evolutionär ekologi,Biologiska institutionen,Naturvetenskapliga fakulteten,CAnMove - Centrum för forskning om djurs spridning och flyttning,Forskargrupper vid Lunds universitet,Evolutionary ecology,Department of Biology,Faculty of Science,CAnMove - Centre for Animal Movement Research,Lund University Research Groups,CSIC Instituto Pirenaico de Ecología (IPE)
(author)
Leucistic plumage as a result of progressive greying in a cryptic nocturnal bird
- Article/chapterEnglish2022
Publisher, publication year, extent ...
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2022-03-01
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Springer Science and Business Media LLC,2022
Numbers
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LIBRIS-ID:oai:lup.lub.lu.se:3ebe7387-7356-42c7-b657-99587cda46d6
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https://lup.lub.lu.se/record/3ebe7387-7356-42c7-b657-99587cda46d6URI
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https://doi.org/10.1038/s41598-022-07360-8DOI
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Language:English
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Summary in:English
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Subject category:art swepub-publicationtype
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Subject category:ref swepub-contenttype
Notes
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Leucism, broadly defined as the lack of melanin pigmentation, occurs in many animal species. Most studies on leucism and other colour aberrations are based on opportunistic observations or small cross-sectional samples, thus limiting our ability to produce reliable results and test theoretical predictions. This study combines cross-sectional and longitudinal data collected in 2016–2020 from a population of red-necked nightjars (Caprimulgus ruficollis). The goals of the study are (i) to investigate sex and age effects on partial leucism, (ii) to separate within-subject effects (progressive greying) from between-subject effects (selective disappearance), and (iii) to examine differences in body mass, structural size, and life span between leucistic and non-leucistic individuals. The probability of leucism in nightjars increased from juveniles to adults at similar rates in males and females. Our longitudinal analysis and life-span comparisons indicated a minor contribution of selective disappearance to age-related changes in leucism, but rather suggested that the loss of melanin from feathers can be attributed to progressive greying in ageing adults. Body mass and size were consistently smaller (5% and 1.5%, respectively) in leucistic than in non-leucistic nightjars, although the reason for this difference remains unclear. Our study sheds light on the sources and mechanisms of variation in leucism in natural populations and its relationship with important life-history traits, such as life span.
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Sáez-Gómez, PedroUniversity of Alicante
(author)
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Hidalgo-Rodríguez, PaulaPablo de Olavide University
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Rabadán-González, JulioObservation.org
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Molina, CarlosCentro Ornitológico Francisco Bernis
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Negro, Juan JoséCSIC Estación Biológica de Doñana (EBD)
(author)
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Evolutionär ekologiBiologiska institutionen
(creator_code:org_t)
Related titles
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In:Scientific Reports: Springer Science and Business Media LLC12:12045-2322
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