Results 41 to 50 of about 478 (117)
Biota Colombiana, 2016 The leucismo is an aberration in pigmentation, resulting from a genetic abnormality and occurs in all vertebrate groups in which the fish are included. In Ecuador, it has not reported such anomalies in fish. Is presented for the first time a case of partial leucismo in an individual of Andean Catfish (Astroblepidae), observed in a spring located near ...
Mena-Valenzuela, Patricio +1 more
openaire +4 more sources
Acta Zoológica LilloanaLos patrones de coloración en especies de fauna silvestre son adaptaciones básicas para la sobrevivencia de las poblaciones, actúan en el camuflaje, mimetismo, selección sexual y termorregulación.
Salvador Gaona Ramírez +4 more
doaj +1 more source
Huitzil, 2022 Registramos la presencia de un individuo de pato tepalcate (Oxyura jamaicensis) con plumaje diluido y dos de pato cucharón norteño (Spatula clypeata), uno con canoso progresivo y el otro con leucismo parcial en el Lago Nabor Carrillo en Texcoco, Estado ...
Héctor Cayetano-Rosas +3 more
doaj +1 more source
A case of partial leucism in the American Barn Owl (Tyto furcata) (Temminck, 1827), from Buenos Aires province, Argentina [PDF]
, 2020 The diverse colorations of a birds’ plumage are due to either structural colors or pigments that are synthesized in specialized cells or incorporated through the diet.
Chiale, María Cecilia +1 more
core +2 more sources
Biotemas, 2019 Variações polimórficas podem atuar nas alterações cromáticas, que, em excesso, causam a hiperpigmentação (indivíduos melânicos), e quando deficientes são responsáveis pela hipopigmentação (indivíduos albinos, leucísticos ou com piebaldismo) e podem ...
Leandro da Silva Oliveira +3 more
doaj +1 more source
Coloración atípica del pelaje en algunos pequeños mamíferos no voladores de Colombia
Mammalogy Notes, 2021 Las anomalías pigmentarias en el pelaje de mamíferos pueden estar asociadas a factores como daño folicular, poca variabilidad genética, polución, alteraciones ambientales o deficiencias dietarias.
David Marín
doaj +1 more source
Nuevos registros de anomalías pigmentarias en dos especies de aves en Cali, Colombia [PDF]
, 2021 We report two bird species with pigment anomalies, which were seen in Cali, Colombia in 2020. The individuals were, a female Shiny Cowbird (Molothrus bonariensis) with partial leucism, a female Ruddy Ground-Dove (Columbia talpacoti) with partial leucism ...
Cárdenas Carmona, Giovanni +1 more
core +1 more source
A SCIENTOMETRIC REVIEW ON LEUCISM IN WILD DOLPHINS [PDF]
, 2020 Leucism, a category of partial albinism, has been observed in several marine mammals, including cetaceans. The underlying mutations, however, have not yet been identified, and a severe knowledge gap concerning this condition in these animals, has ...
Hauser-Davis, Rachel Ann +3 more
core +2 more sources
Registro de aves con leucismo en Baja California Sur, México
ACTA ZOOLÓGICA MEXICANA (N.S.), 2015 We report the occurrence of leucism in feather coloration in three species of birds in Baja California Sur: The Red-tailed Hawk (Buteo jamaicensis), Eurasian Collared-Dove (Streptopelia decaocto) and Red-winged Blackbird (Agelaius phoeniceus). The documentation of such cases may help to understand the impact of aberrations and their variation between ...
Víctor Ayala-Perez +2 more
openaire +2 more sources
NOVO REGISTRO DE LEUCISMO EM Vanellus chilensis (Molina, 1782), NO SUL DO BRASIL [PDF]
Revista de Ciências Ambientais, 2017 O leucismo é uma mutação cromática que bloqueia a síntese de melanina e provoca a perda da pigmentação nas penas das aves. O presente estudo descreve um novo caso de mutação em Vanellus chilensis. Um indivíduo adulto que apresenta leucismo parcial na coloração da plumagem no dorso e asas.
Antônio Coimbra de Brum +4 more
openaire +1 more source