Results 111 to 120 of about 856 (183)

The First Records of Albinism in Several Colubridae Species in Ukraine

Zoodiversity
Abnormal colouration in reptiles, such as melanism, albinism and leucism, provides important insights into ecological stress, genetic variability and population dynamics in reptiles, a group of vertebrates that reacts to various environmental stresses ...
O. Yu. Marushchak, N. A. Smirnov, T. Yu. Hrynchyshyn, O. D. Nekrasova, N. P. Koval, O. Ya. Horbey, V. A. Bakun, M. Pupins, H. I. Mykytynets, M. Vlašín, O. S. Shorokhov, V. O. Shevchuk, I. G. Khomyn, J.-Y. Georges   +13 more
doaj   +1 more source

Hypopigmentation in mantled howler monkeys Alouatta palliata (gray 1849): First documented cases of whole-body leucism in South America. [PDF]

Ecol Evol, 2022
Barros-Diaz C, Vela S, Gallo-Pérez A, Chiquito M, Cornejo X, Mosquera-Muñoz D, Perez-Correa J.   +6 more
europepmc   +1 more source

Two new reports of leucistic birds from Mexico

Huitzil
We present two new records of leucism in two bird species from two locations in Mexico. First, we report one leucistic Barn Swallow (Hirundo rustica); the individual was a nestling observed between 15 July and 6 August 2010, in a suburban area of ...
Oscar Francisco Reyna Bustos, Omar Suarez-García   +1 more
doaj   +1 more source

"Ino" colour aberration in gentoo penguin (Pygoscelis papua) in Antarctica [PDF]

, 2011
Two main types of pigments, carotenoids and melanin, primarily determine plumage colouration in birds. Carotenoids are obtained from food, while melanin formation involves metabolic processes and is genetically determined.
Coria, Néstor Rubén, Juares, Mariana Alejandra, Longarzo, Mria Lucrecia, Mennucci, Jorge Augusto, Negrete, Javier   +4 more
core   +2 more sources

Revisão do distúrbio cromático no gênero Artibeus (Chiroptera, Phyllostomidae), com novo dado para A. lituratus (Olfers, 1818) [PDF]

The known phenotypic variations in the coat of Artibeus lituratus include cases of albinism, piebaldism and leucism. We are reporting a case of piebaldism in A.
Brito de Oliveira, Marcione, Calvano Cosentino, Matheus A., de Almeida Gentil, Mariane, Rodrigues Bonvicino, Cibele   +3 more
core   +2 more sources

First record of partial albinism in two catfish species of Genidens (Siluriformes: Ariidae) in an estuary of Southern Brazil

Brazilian Archives of Biology and Technology, 2013
This study reports the first occurrence of partial albinism in two species of Ariidae: Genidens barbus and Genidens planifrons from an estuary of Southern Brazil. Possible causes of the simultaneous occurrence of three specimens with partial albinism are
Mateus Evangelista Leal, Uwe Horst Schulz, Pablo Lehmann Albornoz, Rodrigo Machado, Paulo Henrique Ott   +4 more
doaj  

First record of leucism for Carollia castanea Allen, 1890 (Phyllostomidae: Carollinae) in southeastern Costa Rica [PDF]

, 2017
Carollia castanea is distributed from Honduras to Venezuela. Leucism has not been reported for this species but there are reports for other phyllostomid bats. An adult C. castanea with leucism was captured at Las Tablas Protected Zone, Costa Rica.
González-Maya, José, Gómez-Hoyos, Diego, Mejía-Quintanilla, David Josué, Rodríguez, Bernal, Seisdedos-de-Vergara, Rocío   +4 more
core   +1 more source

A high-quality assembly reveals genomic characteristics, phylogenetic status, and causal genes for leucism plumage of Indian peafowl. [PDF]

Gigascience, 2022
Liu S, Chen H, Ouyang J, Huang M, Zhang H, Zheng S, Xi S, Tang H, Gao Y, Xiong Y, Cheng D, Chen K, Liu B, Li W, Ren J, Yan X, Mao H.   +16 more
europepmc   +1 more source

A case of leucism in House Sparrow, Passer domesticus (Linnaeus, 1758) in an island of São Francisco river, northeastern Brazil [PDF]

Biotemas, 2012
Leucism in birds is a genetic disorder characterized by the total absence of melanin in some or all feathers, but unlike albinism, the other body parts, such as eyes, beak, and tarsi remain with the typical color of the species.
Leonardo Barros Ribeiro, Melissa Gogliath   +1 more
doaj  

RECORD OF LEUCISM IN Ammodramus humeralis (BOSC, 1792) (PASSERIFORMES: PASSERELLIDAE) IN CENTRAL-WEST BRAZIL [PDF]

, 2018
Several cases of chromatic mutation in birds have been reported in the scientific literature and, apparently, leucism cases are the most frequent. This study reports a case of partial leucism in Ammodramus humeralis (Passeriformes, Passerellidae) in the ...
Corrêa, Luiz Liberato Costa, Quirino, Marcelo Luiz   +1 more
core   +1 more source