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Aximoff I, Zaluar MT, Pissinatti A, Bastos PA, de Assis Morais T, Alves da Rosa C, Oliveira LC, Simonini Teixeira D, Vale MM. Anomalous Pigmentation in Invasive and Native Marmosets, Callithrix jacchus, Callithrix penicillata (Primates, Callitrichidae), and Their Hybrids in Brazil. Folia Primatol (Basel) 2019; 91:149-158. [PMID: 31618728 DOI: 10.1159/000501186] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2018] [Accepted: 05/23/2019] [Indexed: 11/19/2022]
Abstract
Leucism is the lack or reduction in pigmentation in the most or parts of the body, but not in the eyes and body extremities. It is extremely rare in primates and has never been reported for Callithrix, a genus endemic to Brazil. We searched for individuals of Callithrix jacchus and C. penicillata with pigmentation anomalies in a systematic survey of three protected areas in the Atlantic Forest, within museum collections in Brazil, and opportunistically during field studies. Since 2008, we have recorded 8 individuals with leucism in small urban and periurban forest patches. Four were from native populations of C. penicillata in Cerrado savannahs and of C. jacchus in the Caatinga xeric scrubland, and 4 were from populations of hybrids between C. jacchus and C. penicillata in invaded areas in the coastal Atlantic Forest. We found no pigmentation abnormalities in museum specimens. We hypothesize that the observed leucism may be linked to inbreeding within the native range, but to hybridization within the invaded range, and discuss the likely ecological consequences to leucistic individuals.
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Affiliation(s)
- Izar Aximoff
- Instituto de Pesquisa do Jardim Botânico do Rio de Janeiro (JBRJ), Programa de Pós-Graduação em Botânica, Rio de Janeiro, Brazil,
| | - Marina T Zaluar
- Universidade Federal do Rio de Janeiro (UFRJ), Programa de Pós-Graduação em Ecologia, Ilha do Fundão, Rio de Janeiro, Brazil.,Departamento de Ecologia, Universidade Federal do Rio de Janeiro (UFRJ), Ilha do Fundão, Rio de Janeiro, Brazil
| | - Alcides Pissinatti
- Instituto Estadual do Ambiente (INEA), Centro de Primatologia do Rio de Janeiro (CPRJ), Guapimirim, Brazil
| | - Paulo Alfredo Bastos
- Department of Natural Science, Universidade Federal de São João del-Rei, São João del-Rei, Brazil
| | - Tatiania de Assis Morais
- Department of Natural Science, Universidade Federal de São João del-Rei, São João del-Rei, Brazil
| | - Clarissa Alves da Rosa
- Laboratório de Ecologia e Conservação de Mamíferos, Universidade Federal de Lavras, Lavras, Brazil
| | - Leonardo C Oliveira
- Centro de Educação e Humanidades, Faculdade de Formação de Professores de São Gonçalo, Universidade do Estado do Rio de Janeiro (UERJ), São Gonçalo, Brazil.,Bicho do Mato Instituto de Pesquisa, Belo Horizonte, Brazil.,Applied Ecology and Conservation Lab, Programa de Pós-Graduação em Ecologia e Conservação da Biodiversidade, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Danilo Simonini Teixeira
- Departamento de Ciências Agrárias e Ambientais, Universidade Estadual de Santa Cruz, Ilhéus, Brazil
| | - Mariana M Vale
- Departamento de Ecologia, Universidade Federal do Rio de Janeiro (UFRJ), Ilha do Fundão, Rio de Janeiro, Brazil
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Navarro MF, Franco EB, Bastos PA, Teixeira LC, Carvalho RM. Clinical evaluation of gallium alloy as a posterior restorative material. Quintessence Int 1996; 27:315-20. [PMID: 8941813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
This study evaluated 30 gallium alloy (Gallium alloy GF) and 31 amalgam (Dispersalloy) restorations over a period of 8 months in both Class I and Class II cavity preparations in 28 human subjects. At baseline, all gallium alloy and amalgam restorations were considered acceptable (Alfa) in terms of caries, anatomic form, marginal adaptation, surface texture, and bulk fracture. Postoperative sensitivity was reported in 67% of the gallium alloy restorations and in 29% of the amalgam restorations. At 8 months, 61% of the gallium alloy restorations were rated Beta for marginal adaptation, and all restorations exhibited tarnish and corrosion. With a few exceptions, the amalgam restorations were rated Alfa for those criteria. Three gallium alloy restorations had to be replaced during the evaluation period because of severe postoperative sensitivity and 39% of gallium restorations still presented some sensitivity at 8 months. Additional problems exhibited by gallium restorations were tooth fractures, tooth cracks, and marginal whitening.
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Affiliation(s)
- M F Navarro
- Department of Operative Dentistry, University of São Paulo, School of Dentistry, Bauru, Brazil
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Bastos PA, Retief DH, Bradley EL, Denys FR. Effect of etch duration on the shear bond strength of a microfilm composite resin to enamel. Am J Dent 1988; 1:151-7. [PMID: 3073791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
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Bastos PA. [Fundamental difference between alloys for conventional amalgam and alloys with high copper contents]. RGO 1979; 27:109-11. [PMID: 317746] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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