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| Registros recuperados: 23 | |
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| Silveira,Luís Fábio; d'Horta,Fernando Mendonça. |
| A avifauna da região de Vila Bela da Santíssima Trindade (incluindo aí o município de Pontes e Lacerda), Mato Grosso, foi amostrada no final do mês de julho de 1997. Para este levantamento foram utilizados diferentes métodos, que resultaram num total de 312 espécies de aves. Os resultados desta campanha foram comparados com aqueles obtidos por Johann Natterer e Willis e Oniki, que passaram por esta mesma região no século XIX (década de 1820) e na década de 1980, respectivamente. Para a região do Vale do Guaporé temos, quando somados os resultados de todos os autores, um mínimo de 472 espécies de aves, e extinções locais não são reportadas, demonstrando um considerável grau de conservação para esta área. A maioria das espécies registradas nesta região está... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aves; Estado do Mato Grosso; Vale do Guaporé; Conservação; Levantamentos de Avifauna. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492002001000001 |
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| Oppenheimer,Marina; Silveira,Luís Fábio. |
| The Dark-winged Trumpeter, Psophia viridis (Gruiformes, Psophiidae) is a Brazilian endemic species and includes three subspecies: Psophia viridis viridis Spix, 1825; Psophia v. dextralis Conover, 1934, and Psophia v. obscura Pelzeln, 1857, as well as P. v. interjecta Griscom & Greenway, 1937, whose validity has been questioned by several authors. These taxa are allopatric in distribution along the south of the Amazon River, although the precise limits of their distribution still remain unknown. This complex has never been taxonomically reviewed and this work aims to test the validity of its taxa based on the Phylogenetic Species Concept. Morphometrical characters and plumage colour patterns were analyzed, and the distribution of the taxa was also... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Psophiidae; Psophia; Psophia viridis; Taxonomy. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492009004100001 |
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| Cavarzere,Vagner; Albano,Ciro; Tonetti,Vinicius Rodrigues; Pacheco,José Fernando; Whitney,Bret M.; Silveira,Luís Fábio. |
| Abstract Montane and submontane forest patches in the state of Bahia, Brazil, are among the few large and preserved Atlantic Forests remnants. They are strongholds of an almost complete elevational gradient, which harbor both lowland and highland bird taxa. Despite being considered a biodiversity hotspot, few ornithologists have surveyed these forests, especially along elevational gradients. Here we compile bird records acquired from systematic surveys and random observations carried out since the 1980s in a 7,500 ha private protected area: Serra Bonita private reserve. We recorded 368 species, of which 143 are Atlantic Forest endemic taxa. Some 16 and 13 species are threatened at the global and national levels, respectively. If one accounts for... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aves; Bahia; Elevational gradient; Serra Bonita. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492019000100205 |
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| Somenzari,Marina; Amaral,Priscilla Prudente do; Cueto,Víctor R.; Guaraldo,André de Camargo; Jahn,Alex E.; Lima,Diego Mendes; Lima,Pedro Cerqueira; Lugarini,Camile; Machado,Caio Graco; Martinez,Jaime; Nascimento,João Luiz Xavier do; Pacheco,José Fernando; Paludo,Danielle; Prestes,Nêmora Pauletti; Serafini,Patrícia Pereira; Silveira,Luís Fábio; Sousa,Antônio Emanuel Barreto Alves de; Sousa,Nathália Alves de; Souza,Manuella Andrade de; Rodrigues Telino-Júnior,Wallace; Whitney,Bret Myers. |
| Abstract We reviewed the occurrences and distributional patterns of migratory species of birds in Brazil. A species was classified as migratory when at least part of its population performs cyclical, seasonal movements with high fidelity to its breeding grounds. Of the 1,919 species of birds recorded in Brazil, 198 (10.3%) are migratory. Of these, 127 (64%) were classified as Migratory and 71 (36%) as Partially Migratory. A few species (83; 4.3%) were classified as Vagrant and eight (0,4%) species could not be defined due to limited information available, or due to conflicting data. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Migration; Partial migration; Austral migration; Breeding displacement; Altitudinal movement. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492018000100202 |
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| Rego,Marco Antonio; Silveira,Luís Fábio; Piacentini,Vítor de Queiroz; Schunck,Fabio; Machado,Érika; Pinheiro,Renato Torres; Reis,Elivânia. |
| A Estação Ecológica Serra Geral do Tocantins (EESGT) é uma das maiores Unidades de Conservação dentro do Bioma Cerrado. A avifauna desta UC foi inventariada entre os dias 25 de janeiro e 15 de fevereiro de 2008. Durante esse trabalho buscou-se amostrar os diferentes hábitats encontrados na EESGT, bem como algumas localidades no entorno. Além de registros auditivos e visuais foram utilizadas redes-de-neblina e armas de fogo para coletas de material testemunho, que se encontra depositado na coleção ornitológica do Museu de Zoologia da Universidade de São Paulo (MZUSP). Os resultados obtidos foram comparados com os dados disponíveis para outras unidades de conservação presentes na região. Foram registradas 254 espécies de aves, incluindo 11 endêmicas do... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Estação Ecológica Serra Geral do Tocantins; Cerrado; Avifauna; Inventário. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000100027 |
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| Cavarzere,Vagner; Moraes,Gabriel Parmezani; Silveira,Luís Fábio. |
| Boracéia Biological Station, near the city of Salesópolis, SP, is located in one of the most well-defined centers of endemism in eastern Brazil - the Serra do Mar Center. While the station was established only in 1954 under the auspices of the Museu de Zoologia da Universidade de São Paulo, the avifauna of this locality had already attracted the attention of ornithologists by the 1940s, when the first specimens were collected. Here we describe the ornithological history of the Boracéia Biological Station with a review of all the bird species recorded during more than 68 years, including recent transect and mist-netting records. Boracéia's records were found in museums, literature and unpublished reports that totaled 323 bird species when recent data is... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Montane Atlantic forest; Transect counts; Mist-net; Richness; Ornithological collection. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492010001300001 |
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| Silveira,Luís Fábio; Uezu,Alexandre. |
| As listas de espécies são fundamentais para entender os padrões de distribuição espaciais e temporais dos táxons. A partir das bases de dados compiladas pelo CEO - Centro de Estudos Ornitológicos, do levantamento de Willis & Oniki (2003) e de buscas feitas em mais de 50 teses e dissertações, além de monografias e trabalhos técnicos, foram listadas todas as aves já registradas no Estado de São Paulo. Esses registros são compostos por peles ou outros materiais coletados e depositados em coleções, além de fotografias ou gravações. No total, foram registradas 793 espécies, distribuídas em 25 ordens e 85 famílias, correspondendo a cerca de 45% da avifauna brasileira. Um dos principais motivos para essa alta diversidade é a diversidade de ambientes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aves; Biota paulista; Programa BIOTA/FAPESP. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032011000500006 |
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| Dénes,Francisco V.; Silveira,Luís Fábio. |
| The currently accepted albatross taxonomy, based on characters of external morphology, plumage patterns, tail shape, bill size and coloration, organization of the plates of the bill, and, more recently, molecular data such as cytochrome-b gene sequences, resulted in a division of the family Diomedeidae into four genera: Diomedea, comprising the great albatrosses; Phoebastria, the North Pacific albatrosses; Thalassarche, the mollymawks; and Phoebetria, the sooty mollymawks. However, there are only a few, old studies on albatross osteology, which focused mostly on supra-generic relationships. Research on the group's taxonomy and anatomy is important in order to establish a secure basis for the identification of each species, including the differences between... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Albatross; Cranial osteology; Diomedea; Thalassarche. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492007000300001 |
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| Cavarzere,Vagner; Alves,Fernanda; Machado,Érika; Rego,Marco Antônio; Silveira,Luís Fábio; Costa,Marcos Mendonça; Calonge-Méndez,Andrés. |
| Despite their wide use in ornithological surveys, point counts and mist nets follow protocols developed in temperate regions, with little attention to possible modifications for tropical systems. Using these methods on a 3-month basis from December 2009-January 2011 in two forest fragments in southeastern Brazil, we wished to evaluate how long these locations needed to be surveyed with point counts for a relatively complete avifaunal inventory (at least 90% of all species and contacts), and if mist net hourly captures can equally detect numbers of species and individuals. Daily counting with four 20-min points during five consecutive days in a rain forest (MC) detected 90% of the estimated species richness after 20 h (60 20-min point counts), while 17 h... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avian abundance; Bird species richness; Bird surveying methods; Method efficiency; Neotropical forests. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013002600001 |
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| Apolinario,Cristiane; Silveira,Luís Fábio. |
| ABSTRACT Cyanocorax chrysops (Vieillot, 1818) and Cyanocorax cyanopogon (Wied, 1821) are widespread jays. They are considered sister species according to recent molecular phylogenies. When analyzing museum specimens of both species, we found two individuals with intermediate plumage characteristics. They were collected near the range limits of both species, and we classified them as hybrids. Based on the sites where these specimens were found, we discuss the possible factors leading the interbreeding and compare our findings with information available in the literature. This is the first documented case of natural hybridization in jays in Brazil and the second case involving sister species within the New World jays. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Contact zones; Hybrids; Interbreeding; Jays. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100324 |
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| Evangelista-Vargas,Oscar Diego; Silveira,Luís Fábio. |
| ABSTRACT Penelope obscura Temminck, 1815 is a forest guan found in Brazil, Paraguay, Uruguay, Argentina and Bolivia. Three subspecies are currently recognized: Penelope o. obscura Temminck, 1815, P. o. bridgesi Gray, 1860, and P. o. bronzina Hellmayr, 1914. The limits between Penelope taxa are poorly understood since few studies have evaluated their differences in plumage, distribution and taxonomy. Based on 104 specimens deposited in ornithological collections we studied the variations in the plumage of P. obscura, including all characters that have been used to describe the included subspecies. Our results show that the plumage of these birds is extremely variable in southern and southeastern Brazil. Without any morphological and morphometric characters... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distribution; Morphology; Penelope; Taxonomy. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702018000100317 |
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| Tomotani,Barbara Mizumo; Silveira,Luís Fábio; Pacheco,José Fernando. |
| Abstract The Little Chachalaca (Ortalis motmot) is a widely distributed species in the Amazon basin, typically found in riverine habitats. There are two disjunct populations: the northern O. m. motmot and the southern O. m. ruficeps (known as Chestnut-headed Chachalaca). Here we performed a vocal, morphological and plumage comparison between these two taxa. Birds present differences in tail coloration but are otherwise undiagnosable in terms of plumage. Ortalis m. ruficeps is, however, markedly smaller and lighter than O. m. motmot, with no overlap in size or weight. We also found vocal differences between O. m. motmot and O. m. ruficeps, no overlap in geographic distributions and no signs of hybridization across its range. Based on the available data,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Morphology; Plumage; Voice; Little Chachalaca. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492020000100212 |
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| Serrano-Villavicencio,José Eduardo; Silveira,Luís Fábio. |
| ABSTRACT The yellow-tailed woolly monkey, Lagothrix flavicauda (Humboldt, 1812), is a large atelid endemic to the cloud forests of Peru. The identity of this species was uncertain for at least 150 years, since its original description in 1812 without a voucher specimen. Additionally, the absence of expeditions to the remote Peruvian cloud forests made it impossible to collect material that would help to confirm the true identity of L. flavicauda during the 19th and first half of the 20th century. Until now, the specimens of L. flavicauda collected by H. Watkins, in 1925, in La Lejía (Amazonas, Peru) were thought to be the oldest ones deposited in any scientific collection. Nevertheless, after reviewing the databases of the several international museums and... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Distribution; History; Taxonomy; Yellow-tailed woolly monkey. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702019000100502 |
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| Cavarzere,Vagner; Costa,Thiago Vernaschi Vieira da; Silveira,Luís Fábio. |
| Due to rapid and continuous deforestation, recent bird surveys in the Atlantic Forest are following rapid assessment programs to accumulate significant amounts of data during short periods of time. During this study, two surveying methods were used to evaluate which technique rapidly accumulated most species (> 90% of the estimated empirical value) at lowland Atlantic Forests in the state of São Paulo, southeastern Brazil. Birds were counted during the 2008-2010 breeding seasons using 10-minute point counts and 10-species lists. Overall, point counting detected as many species as lists (79 vs. 83, respectively), and 88 points (14.7 h) detected 90% of the estimated species richness. Forty-one lists were insufficient to detect 90% of all species. However,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bertioga; Bird species richness; MacKinnon lists; Rapid assessment programs; Surveying methods. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492012002800001 |
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| Cavarzere,Vagner; Moraes,Gabriel Parmezani; Roper,James Joseph; Silveira,Luís Fábio; Donatelli,Reginaldo José. |
| In the northern hemisphere, bird counts have been fundamental in gathering data to understand population trends. Due to the seasonality of the northern hemisphere, counts take place during two clearly defined moments in time: the breeding season (resident birds) and winter (after migration). Depending on location, Neotropical birds may breed at any time of year, may or may not migrate, and those patterns are not necessarily synchronous among species. Also in contrast to the northern hemisphere, population trends and the impact of rapid urbanization and deforestation are unknown and unmonitored. Throughout one year, we used point counts to better understand temporal patterns of bird species richness and relative abundance in the state of São Paulo,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bird surveying method; Breeding Bird Survey; Christmas Bird Count; Methodological protocols; Pan-European Common Bird Monitoring Scheme; Temporal variation; Seasonal variation. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492013003200001 |
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| Pereira,Glauco Alves; Dantas,Sidnei de Melo; Silveira,Luís Fábio; Roda,Sônia Aline; Albano,Ciro; Sonntag,Frederico Acaz; Leal,Sergio; Periquito,Mauricio Cabral; Malacco,Gustavo Bernardino; Lees,Alexander Charles. |
| The Atlantic Forest of northeast Brazil hosts a unique biota which is among the most threatened in the Neotropics. Near-total conversion of forest habitat to sugar cane monocultures has left the region's endemic forest-dependent avifauna marooned in a few highly-fragmented and degraded forest remnants. Here we summarise the current status of 16 globally threatened species based on surveys conducted over the last 11 years. We found a bleak situation for most of these species and consider that three endemics: Glaucidium mooreorum (Pernambuco Pygmy-owl), Cichlocolaptes mazarbarnetti (Cryptic Treehunter) and Philydor novaesi (Alagoas Foliage-gleaner) are most likely globally extinct. Some positive news can, however, be reported for both Leptodon forbesi... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Fragmentation; Species-area relationship; Conservation intervention; Protected areas. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0031-10492014001400001 |
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| Registros recuperados: 23 | |
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