Um albino parcial de veado campeiro (Ozotoceros bezoarticus, Linnaeus) no Parque Nacional das Emas, Goiás

Rodrigues, Flávio Henrique Guimarães; Silveira, Leandro; Jácomo, Anah T. A.; Monteiro‐Filho, Emygdio L. A.

doi:10.1590/s0101-81751999000400032

Cited by 14 publications

(9 citation statements)

References 5 publications

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“…This author also mentioned a possible record of another individual of collared peccary, Pecari (=Tayassu) tajacu (Linnaeus, 1758), near São José dos Pinhais city (Paraná state) (25° 32' S; 49° 11' W), Southern Brazil. In Midwestern Brazil (Goiás state), Rodrigues et al (1999) mention a record of a pup of Pampas deer, Ozotoceros bezoarticus (Linnaeus, 1758), with albino characteristics (although they do not provide sufficient information to define the record as having albinism, leucism or piebaldism).…”

Section: Discussionmentioning

confidence: 99%

“…In the case of aquatic animals, Hain and Leatherwood (1982) and Fertl and Rosel (2002) also suggest that albino animals may exhibit lower heat absorption in colder waters. Other authors suggest that the survival of albino animals does not differ from that of non-albino individuals of cryptic or nocturnal species (Sazima and Pombal, 1986;Sazima and Di-Bernardo, 1991) and in those that have restricted predators (Rodrigues et al, 1999). Therefore, in order to better understand the consequences of the anomalous coloration on the survival of wildlife mammals, it is essential to know the kind and frequency of these phenomena and the most susceptible orders.…”

Section: Introductionmentioning

confidence: 99%

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Anomalous colour in Neotropical mammals: a review with new records for Didelphis sp. (Didelphidae, Didelphimorphia) and Arctocephalus australis (Otariidae, Carnivora)

et al. 2013

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Anomalous colourations occur in many tropical vertebrates. However, they are considered rare in wild populations, with very few records for the majority of animal taxa. We report two new cases of anomalous colouration in mammals. Additionally, we compiled all published cases about anomalous pigmentation registered in Neotropical mammals, throughout a comprehensive review of peer reviewed articles between 1950 and 2010. Every record was classified as albinism, leucism, piebaldism or eventually as undetermined pigmentation. As results, we report the new record of a leucistic specimen of opossum (Didelphis sp.) in southern Brazil, as well as a specimen of South American fur seal (Arctocephalus australis) with piebaldism in Uruguay. We also found 31 scientific articles resulting in 23 records of albinism, 12 of leucism, 71 of piebaldism and 92 records classified as undetermined pigmentation. Anomalous colouration is apparently rare in small terrestrial mammals, but it is much more common in cetaceans and michrochiropterans. Out of these 198 records, 149 occurred in cetaceans and 30 in bats. The results related to cetaceans suggest that males and females with anomolous pigmentation are reproductively successful and as a consequence their frequencies are becoming higher in natural populations. In bats, this result can be related to the fact these animals orient themselves primarily through echolocation, and their refuges provide protection against light and predation. It is possible that anomalous colouration occurs more frequently in other Neotropical mammal orders, which were not formally reported. Therefore, we encourage researchers to publish these events in order to better understand this phenomenon that has a significant influence on animal survival.Keywords: albinism, hypopigmentation, leucism, Neotropical mammals, piebaldism.Coloração anômala em mamíferos Neotropicais: uma revisão com novos registros para Didelphis sp. (Didelphidae, Didelphimorphia) e Arctocephalus australis (Otariidae, Carnivora) ResumoColorações anômalas ocorrem em muitos vertebrados tropicais. Entretanto, estas são consideradas raras em populações selvagens, havendo poucos registros para a maioria dos táxons. Reportam-se, neste estudo, dois novos casos de coloração anômala em mamíferos. Além disso, por meio de uma extensa revisão bibliográfica, foram compilados os casos publicados sobre coloração anômala em mamíferos neotropicais entre 1950 e 2010. Cada registro foi classificado como albinismo, leucismo, piebaldismo ou, eventualmente, como coloração indeterminada. Como resultados, reportouse o registro de um espécime leucístico de gambá (Didelphis sp.) no sul do Brasil e de um espécime de lobo-marinho sul-americano (Arctocephalus australis) com piebaldismo no norte do Uruguai. Também foram analisados 31 artigos científicos, resultando em 23 registros de albinismo, 12 de leucismo, 71 de piebaldismo e 92 registros classificados como de pigmentação indeterminada. A coloração anômala aparentemente é rara em pequenos mamíferos terrestres...

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Anomalous colour in Neotropical mammals: a review with new records for Didelphis sp. (Didelphidae, Didelphimorphia) and Arctocephalus australis (Otariidae, Carnivora)

et al. 2013

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“…The causes of leucism are often attributed to the presence of recessive mutant alleles (Bensch et al 2000), or to the lack of production of tyrosinase, the enzyme involved in melatonin biosynthesis, so that the body cannot synthesize melanin (Sanchez-Ferrer et al 1995). Leucism differs from albinism, which is caused by a recessive disorder, causing the individual to have pink skin and eyes, and in mammals, a white fur (Cademartori & Pacheco 1999;Rodrigues et al 1999;Oliveira 2009). Leucism is commonly confused with partial albinism or piebaldism (Fertl & Rosel 2002;Miller 2005), a type of disorder related to the lack of pigmentation in certain areas of the body of the animal, but maintaining normal eye color.…”

Section: Introductionmentioning

confidence: 99%

Occurrence of leucism in Eira barbara (Carnivora, Mustelidae) in Brazil

et al. 2017

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The occurrence of anomalous coloration (albinism, leucism and melanism) in mammals is a rare phenomenon in nature, but this phenomenon has been reported for several species of mammals. In this study, we report on the occurrence of leucism in Eira barbara by examining three road-killed individuals and two sightings of live animals in Reserva Particular do Patrimônio Natural Santuário do Caraça, southeastern Brazil. In addition, we examined tayra specimens housed in mammal collections from Brazil and USA. The animals found dead and those sighted had a whitish yellow fur on the body and head, resulting in lighter coloration than the coloring pattern commonly observed in tayras. Despite these lighter color pattern, the specimens showed parts of soft tissue, such as iris and the skin, with pigmentation very similar to that present in individuals with the typical color pattern. This set of factors indicates the specimens recorded were in fact leucistic and not albino. Among the specimens examined in the scientific collections, we found nine individuals from different localities that presented the whitish yellow color pattern. Some studies attribute the higher frequency of cases of leucism due to small populations and / or with some mechanism of reproductive isolation. Thus, analysis of the genetic variability of populations containing individuals with such characteristics should be considered. On the other hand, the occurrence of polymorphic color phenotype in tayras indicates that hypotheses related to the fixation of recessive characteristics, or on possible environmental adaptive advantages of these phenotypes can be tested.

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“…It is a natural genetic variation of recessive and mutational order caused by a deficit in melanin production (Walter, 1938). True albinism consists in the complete absence of pigmentation where the protein is supposed to be present, skin, fur, stratum corneum (horns, shells and hoofs) and eyes (iris) (Sazima and Pombal, 1986;Sazima and Di-Bernardo, 1991;Rodrigues et al, 1999;García-Morales, 2010). Other depigmentation forms, which include white stains over the body or variations on the chromatic pattern are regarded as "partial albinism" (Geiger and Pacheco, 2006;Oliveira, 2009a;2009b), or "leucism", (Van Grouw, 2006Abreu et al, 2013), and those are more prone to happen in wild animals than total albinism.…”

Section: Introductionmentioning

confidence: 99%

Albinismo em zorrilho, Conepatus chinga (Mammalia, Carnivora, Mephitidae). O

2016

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Um albino parcial de veado campeiro (Ozotoceros bezoarticus, Linnaeus) no Parque Nacional das Emas, Goiás

Abstract: ABSTRACT. Partial albinism in the pampas deer and a criticai analysis about albino Mammals. A case ofpartial albinism in the pampas deer, recorded at the Emas National Park, Goiás, Brazil is described. The coat color and behaviour ofthe albino are compared with normal pampas deer.

Cited by 14 publications

References 5 publications

Anomalous colour in Neotropical mammals: a review with new records for Didelphis sp. (Didelphidae, Didelphimorphia) and Arctocephalus australis (Otariidae, Carnivora)

Anomalous colour in Neotropical mammals: a review with new records for Didelphis sp. (Didelphidae, Didelphimorphia) and Arctocephalus australis (Otariidae, Carnivora)

Occurrence of leucism in Eira barbara (Carnivora, Mustelidae) in Brazil

Albinismo em zorrilho, Conepatus chinga (Mammalia, Carnivora, Mephitidae). O

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