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Bravo-Salinas R, Salas JA. Registro de desorden cromático en Trachops cirrhosus (Spix, 1823) (Chiroptera: Phyllostomidae) en la Amazonia del Ecuador. REVISTA PERUANA DE BIOLOGÍA 2022. [DOI: 10.15381/rpb.v29i4.23598] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Presentamos un caso de desorden cromático observado en un ejemplar de Trachops cirrhosus proveniente de bosques de tierras bajas de la Amazonía ecuatoriana. Durante el trabajo de campo, seis individuos de esta especie fueron capturados con redes de niebla en un hábitat intervenido, de los cuales, un ejemplar macho juvenil fue distinguible del resto de individuos debido a la presencia manchas blanquecinas en la región ventral, en el pecho y abdomen. Discutimos sobre los reportes previos de este tipo de trastornos pigmentarios en murciélagos de Ecuador, y en el Neotrópico, documentando el primer registro de esta especie con esta condición para el país.
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Camacho C, Sáez-Gómez P, Hidalgo-Rodríguez P, Rabadán-González J, Molina C, Negro JJ. Leucistic plumage as a result of progressive greying in a cryptic nocturnal bird. Sci Rep 2022; 12:3411. [PMID: 35233024 PMCID: PMC8888543 DOI: 10.1038/s41598-022-07360-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2021] [Accepted: 02/14/2022] [Indexed: 11/09/2022] Open
Abstract
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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Affiliation(s)
- Carlos Camacho
- Department of Biological Conservation and Ecosystem Restoration, Instituto Pirenaico de Ecología - CSIC, Av. Nuestra Señora de la Victoria 16, 22700, Jaca, Huesca, Spain. .,Department of Biology, Centre for Animal Movement Research (CAnMove), Lund University, Ecology Building, S lvegatan 37, 223 62, Lund, Sweden.
| | - Pedro Sáez-Gómez
- Instituto Multidisciplinar para el Estudio del Medio "Ramon Margalef", Universidad de Alicante, 03080, Alicante, Spain
| | - Paula Hidalgo-Rodríguez
- Department of Molecular Biology and Biochemical Engineering, University Pablo de Olavide, Carretera Utrera km.1, 41013, Seville, Spain
| | | | - Carlos Molina
- Sociedad Española de Ornitología, Centro Ornitológico Francisco Bernis, Paseo Marismeño s.n., 21750, Huelva, Spain
| | - Juan José Negro
- Department of Evolutionary Biology, Estación Biológica de Doñana - CSIC, Av. Américo Vespucio, 26, 41092, Seville, Spain.
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Genelhú SMC, Simões MH, Assis MAC, Ribeiro MS, Prous X. First report of albinism in a lactating female of the chestnut long-tongued bat Lionycteris spurrelli Thomas, 1913 (Chiroptera, Phyllostomidae). MAMMALIA 2022. [DOI: 10.1515/mammalia-2021-0030] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Albinism is a genetic disorder that causes pigmentation anomalies. Even though supposedly rare in free-living mammals, cases of albinism have been reported worldwide, particularly in bats. In this article we present a new case of albinism in a Lionycteris spurrelli Thomas, 1913. The individual, observed in an Amazon region iron ore cave, in Northern Brazil, was a lactating female with a dark-brown pelage pup.
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Affiliation(s)
- Sebastião Maximiano Corrêa Genelhú
- Laboratório de Diversidade e Sistemática de Mamíferos a Universidade Federal de Lavras (UFLA) , Lavras , MG , CEP 37.200-900 , Brazil
- Programa de Ecologia Aplicada da Universidade Federal de Lavras (UFLA) , Lavras , MG , CEP 37.200-900 , Brazil
| | - Matheus Henrique Simões
- Vale – Speleology , Av. Dr. Marco Paulo Simon Jardim, 3580 , Nova Lima , MG , CEP 34006-270 , Brazil
| | - Miguel Angelo Cançado Assis
- Instituto SerraDiCal de Pesquisa e Conservação , Rua José Hemetério Andrade, n 570, Bloco 06, apto 201, Bairro Buritis , Belo Horizonte , MG , 30493-180 , Brazil
| | - Mariane Soares Ribeiro
- Vale – Speleology , Av. Dr. Marco Paulo Simon Jardim, 3580 , Nova Lima , MG , CEP 34006-270 , Brazil
| | - Xavier Prous
- Vale – Speleology , Av. Dr. Marco Paulo Simon Jardim, 3580 , Nova Lima , MG , CEP 34006-270 , Brazil
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Mendes Pontes AR, da Silva Júnior AP, Chivers D. The occurrence of leucism in groups of tayras Eira barbara Linnaeus 1758 on the Guyana shield. ECOSCIENCE 2020. [DOI: 10.1080/11956860.2020.1804724] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Affiliation(s)
| | - Antonio Paulo da Silva Júnior
- Centro de Filosofia e Ciências Humanas, Departamento de Ciências Geográficas, Universidade Federal de Pernambuco, Pernambuco, Brazil
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