16 results on '"Vagner, Cavarzere"'
Search Results
2. Geographical drivers of altitudinal diversity of birds in the Atlantic Forest
- Author
-
Vagner Cavarzere, Vitor Marchi, James J. Roper, and Luís Fábio Silveira
- Subjects
0106 biological sciences ,0301 basic medicine ,Ecology ,Range (biology) ,Elevation ,Cell Biology ,Plant Science ,Vegetation ,01 natural sciences ,Biochemistry ,03 medical and health sciences ,030104 developmental biology ,Geography ,Altitude ,Abundance (ecology) ,Genetics ,Animal Science and Zoology ,Species richness ,Transect ,Molecular Biology ,Ecology, Evolution, Behavior and Systematics ,010606 plant biology & botany ,Global biodiversity - Abstract
We measured bird diversity over an 800 m range in altitude to test the factors that influence changes in diversity, in the Atlantic Forest in the state of Sao Paulo, Brazil. We counted forest birds in nine 100 m transects comprising three-point counts, the center of each separated by 200 m. A total of 108 species were found, and diversity was distributed among sampling points and altitude formed a trough-shaped relationship of number of species by area, altitude, and, most strongly, slope. In Principal Coordinate Analysis we found that grouping points by similarity formed three distinct units that were united by altitude: the lowest at near sea level, 100–400 m, and 500–800 m. Thus, we demonstrate that, in the Atlantic Forest, turnover of species with altitude occurs, but unlike higher, often steeper, tropical gradients in Andean forests, where vegetation more clearly changes with elevation, species turnover is more likely to be associated with variables other than changes in vegetation, and which are often not included in studies of the elevation gradient in species richness. The mid-domain effect did not explain altitudinal gradient in diversity, while a quadratic relationship with altitude did, suggesting that reduced abundance and diversity are associated with steeper slopes.
- Published
- 2021
- Full Text
- View/download PDF
3. An ornithological inventory in a reforested woodlot in western Paraná state, southern Brazil
- Author
-
Isabela Sales Quagliato and Vagner Cavarzere
- Subjects
biology ,Citizen Science ,Ecology ,Turdus leucomelas ,Introduced species ,Biodiversity ,biology.organism_classification ,Diamante d’Oeste ,Geography ,QL1-991 ,Common species ,Threatened species ,Biological Refuge ,Relevant Ecological Interest Area ,Animal Science and Zoology ,Eucometis penicillata ,Arremon flavirostris ,Santa Helena ,Laterallus exilis ,Zoology ,Amazona vinacea ,Taxonomy - Abstract
This paper presents an ornithological inventory taken between March and December of 2017 in the Brazilian state of Paraná. Although the surroundings contain one relatively well-known location in regard to ornithology, Iguaçu National Park, several other areas merit exploration, among them the Santa Helena Relevant Ecological Interest Area (ARIE‑SH). The 1,479 ha ARIE‑SH is essentially a large remnant of the Atlantic Forest located adjacent to the city of Santa Helena, Paraná, which commencing in the 1980s has undergone considerable reforestation with both native and exotic species, including fruit species. Prior to censusing bird species and to better characterize the avian community, we conducted a bibliographic review of earlier ornithological studies carried out at ARIE‑SH. In addition, we conducted opportunistic and unsystematic observations in nearby locations. We recorded 311 species of birds. During the current inventory, and others conducted in the area since 2016, we recorded six Atlantic Forest endemic species, five species threatened in Paraná, and two globally threatened species. Common species which showed high Index of Frequency in Lists include (in descending order) Basileuterus culicivorus, Leptotila verreauxi, Cnemotriccus fuscatus, Corythopis delalandi, Turdus leucomelas and Arremon flavirostris. Nine species observed while conducting this census (Laterallus exilis, Amazona vinacea, Herpsilochmus longirostris, Campylorhamphus trochilirostris, Casiornis rufus, Campylorhynchus turdinus, Myiothlypis flaveola, Eucometis penicillata and Sporophila palustris) are the first records for this region.
- Published
- 2021
4. An overlooked hotspot for birds in the Atlantic Forest
- Author
-
Ciro Albano, Luís Fábio Silveira, José Fernando Pacheco, Vagner Cavarzere, Bret M. Whitney, Vinicius Rodrigues Tonetti, Universidade Tecnológica Federal do Paraná (UTFPR), Brazil Birding Experts, Universidade Estadual Paulista (Unesp), Comitê Brasileiro de Registros Ornitológicos (CBRO), Museum of Natural Science, and Universidade de São Paulo (USP)
- Subjects
Ecology ,Bahia ,Biodiversity ,Private protected area ,Subspecies ,Biodiversity hotspot ,Elevational Diversity Gradient ,Taxon ,Geography ,Serra Bonita ,lcsh:Zoology ,Threatened species ,Hotspot (geology) ,Animal Science and Zoology ,Atlantic forest ,lcsh:QL1-991 ,Elevational gradient ,Aves ,Taxonomy - Abstract
Made available in DSpace on 2019-10-06T16:50:08Z (GMT). No. of bitstreams: 0 Previous issue date: 2019-01-01. Added 1 bitstream(s) on 2019-10-09T18:35:39Z : No. of bitstreams: 1 S0031-10492019000100205.pdf: 1992670 bytes, checksum: 37750be2d1ee153925064c7122f6d49d (MD5) Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) 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 subspecies, the number of Brazilian threatened taxa raises to 21. Species composition differs between lower and higher elevations, in which case lowlands harbor Amazonia-related taxa, whereas highlands are the home of Atlantic Forest-related taxa. Universidade Tecnológica Federal do Paraná (UTFPR) Brazil Birding Experts Universidade Estadual Paulista (UNESP) Instituto de Biociências Departamento de Ecologia Comitê Brasileiro de Registros Ornitológicos (CBRO) Louisiana State University Museum of Natural Science Universidade de São Paulo (USP) Museu de Zoologia (MZUSP) Universidade Estadual Paulista (UNESP) Instituto de Biociências Departamento de Ecologia
- Published
- 2019
5. Taxonomy and biogeography of Stephanoxis Simon, 1897 (Aves: Trochilidae)
- Author
-
Marcelo Ferreira de Vasconcelos, Vagner Cavarzere, Fernando Costa Straube, Rolf Grantsau, and Luís Fábio Silveira
- Subjects
Florestas montanas ,Biogeography ,Species limits ,Mata Atlântica ,lcsh:Zoology ,Apodiformes ,Serra de Paranapiacaba ,Animalia ,Atlantic forest ,lcsh:QL1-991 ,Chordata ,Taxonomy ,Trochilidae ,Stephanoxis ,Biodiversity ,Montane forest ,Geography ,Montane ecology ,Animal Science and Zoology ,Taxonomy (biology) ,Limite de espécies ,Aves ,Humanities ,Serra do Mar - Abstract
After the description in the 19th century of two hummingbird species currently allocated to the genus Stephanoxis, Peters (1945) merged both taxa into a single species without providing any rationale. Here we re-evaluate the taxonomy and species limits of the representatives of this genus based on an extensive number of specimens. We demonstrate these taxa are better treated as full species under both the Biological and Phylogenetic Species Concepts due to their well-defined range and plumage patterns and reciprocally diagnosability. They have distinct, allopatric distributions segregated by a 160 km gap between the Serra do Mar, to the east, and Serra de Paranapiacaba, to the west, in the state of São Paulo. Stephanoxis species have ranges which are congruent with other montane bird species suggesting shared vicariance events during preterit interglacial periods. Após a descrição no século XIX de duas espécies de beija-flores atualmente alocados no gênero Stephanoxis, ambos os táxons foram considerados subespécies por Peters (1945), sem que o autor fornecesse qualquer justificativa para tal decisão taxonômica. Com base em um expressivo número de exemplares nós reavaliamos a taxonomia e o limite de espécies dos representantes deste gênero, e demonstramos que ambos são mais bem tratados como espécies plenas sob os Conceitos Biológico e Filogenético de Espécie devido aos bem definidos padrões de plumagem e de distribuição geográfica, assim como pela distinta reciprocidade monofilética. Ambos os táxons são separados por cerca de 160 quilômetros entre a Serra do Mar, a leste, e a Serra de Paranapiacaba, a oeste, dentro do Estado de São Paulo. A distribuição das duas espécies de Stephanoxis é congruente com as de outras espécies de aves montanas, o que sugere eventos vicariantes compartilhados durante períodos interglaciais pretéritos.
- Published
- 2014
- Full Text
- View/download PDF
6. A 30-year quantitative comparison of the bird community of a semideciduous forest remnant in the state of São Paulo
- Author
-
Vagner Cavarzere, Gabriel Parmezani Moraes, Rafael S. Marcondes, Reginaldo José Donatelli, Universidade de São Paulo (USP), and Universidade Estadual Paulista (Unesp)
- Subjects
fragmentação ,Estação Ecológica dos Caetetus ,categorias tróficas ,Forestry ,Biology ,Caetetus Ecological Station ,species abundance ,Abundância de aves ,fragmentation ,lcsh:Zoology ,transect counts ,Animal Science and Zoology ,contagem em transecção ,lcsh:QL1-991 ,trophic categories - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:44:55Z No. of bitstreams: 1 S0073-47212012000400004.pdf: 872644 bytes, checksum: 9ec5b35e79a9b733d689d7a09ca86db7 (MD5) Made available in DSpace on 2013-08-22T18:44:55Z (GMT). No. of bitstreams: 1 S0073-47212012000400004.pdf: 872644 bytes, checksum: 9ec5b35e79a9b733d689d7a09ca86db7 (MD5) Previous issue date: 2012-12-01 Made available in DSpace on 2013-09-30T19:33:29Z (GMT). No. of bitstreams: 2 S0073-47212012000400004.pdf: 872644 bytes, checksum: 9ec5b35e79a9b733d689d7a09ca86db7 (MD5) S0073-47212012000400004.pdf.txt: 48629 bytes, checksum: 46b34deed3e6db8f81acc22784c68e5b (MD5) Previous issue date: 2012-12-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:25:43Z No. of bitstreams: 2 S0073-47212012000400004.pdf: 872644 bytes, checksum: 9ec5b35e79a9b733d689d7a09ca86db7 (MD5) S0073-47212012000400004.pdf.txt: 48629 bytes, checksum: 46b34deed3e6db8f81acc22784c68e5b (MD5) Made available in DSpace on 2014-05-20T13:25:43Z (GMT). No. of bitstreams: 2 S0073-47212012000400004.pdf: 872644 bytes, checksum: 9ec5b35e79a9b733d689d7a09ca86db7 (MD5) S0073-47212012000400004.pdf.txt: 48629 bytes, checksum: 46b34deed3e6db8f81acc22784c68e5b (MD5) Previous issue date: 2012-12-01 Poucos estudos avaliaram em longo prazo a variação no tamanho populacional das espécies de aves em fragmentos florestais. Para avaliar a riqueza e a abundância específica da comunidade de aves de um remanescente de mata semidecidual do interior do Estado de São Paulo, sudeste do Brasil, foi conduzido o censo da avifauna florestal utilizando-se a metodologia de contagem em transecção. Estes resultados foram comparados com levantamento realizado na mesma localidade 30 anos antes, e as aves foram classificadas de acordo com suas categorias alimentares com a finalidade de associá-las à tendência ao aumento/diminuição de suas abundâncias após este intervalo de tempo. Embora tenha havido predominância de espécies com diminuição populacional, todas as categorias tróficas analisadas apresentaram também espécies com aumento em suas abundâncias. A maioria das espécies com propensão a deslocarem-se entre fragmentos apresentou diminuição em suas abundâncias. Sugerimos que, em relação a suas abundâncias específicas, as categorias tróficas são igualmente afetadas pelos processos da fragmentação, e que a regeneração florestal sofrida pelo remanescente pode ter resultado na perda de espécies de bordas. Espécies cujas abundâncias tenham reduzido neste intervalo de tempo podem sofrer extinção local futuramente. Few studies have evaluated long-term changes in avian abundance in forest remnants. To compare both species richness and abundance of the bird community in a forest fragment located in the municipality of Gália, state of São Paulo, southeastern Brazil, we surveyed forest birds using transect counts. We compared our results with a survey conducted 30 years earlier at the same locality and further classified bird species according to their food habits to eventually predict fluctuations of specific abundance. Although species with population declines predominated in the community, all trophic categories had species which increased their abundances. Most species prone to move around remnants decreased in abundance. We suggest that, regarding specific abundances, trophic categories may be equally affected as a result of fragmentation processes and that the forest regeneration of this remnant may have led to the loss of edge species. Species that suffered from abundance loss during this time period may become locally extinct in the near future. Universidade de São Paulo Instituto de Biociências Departamento de Zoologia Universidade Estadual Paulista Departamento de Ciências Biológicas Universidade Estadual Paulista Departamento de Ciências Biológicas
- Published
- 2012
7. Bird species diversity in the Atlantic Forest of Brazil is not explained by the Mid-domain Effect
- Author
-
Vagner Cavarzere and Luís Fábio Silveira
- Subjects
geometric constraints ,Null model ,Ecology ,null model ,Elevation ,Species diversity ,Rainforest ,Elevational Diversity Gradient ,Geography ,lcsh:Zoology ,Animal Science and Zoology ,Atlantic forest ,Species richness ,mountain ecology ,lcsh:QL1-991 ,rain forest ,Altitudinal gradient ,avian species richness ,human activities ,Sampling bias - Abstract
The Atlantic Forest is an excellent case study for the elevational diversity of birds, and some inventories along elevational gradients have been carried out in Brazil. Since none of these studies explain the patterns of species richness with elevation, we herein review all Brazilian studies on bird elevational diversity, and test a geometric constraint null model that predicts a unimodal species-altitude curve, the Mid-domain Effect (MDE). We searched for bird inventories in the literature and also analysed our own survey data using limited-radius point counts along an 800 m elevational gradient in the state of São Paulo, Brazil. We found 10 investigations of elevational diversity of Atlantic Forest birds and identified five different elevational patterns: monotonic decreasing diversity, constant at low elevations, constant at low elevations but increasing towards the middle, and two undescribed patterns for Atlantic Forest birds, trough-shaped and increasing diversity. The average MDE fit was low (r² = 0.31) and none of the MDE predictions were robust across all gradients. Those studies with good MDE model fits had obvious sampling bias. Although it has been proposed that the MDE may be positively associated with the elevational diversity of birds, it does not fit the Brazilian Atlantic Forest bird elevational diversity.
- Published
- 2012
8. Birds from cerradão woodland, an overlooked forest of the Cerrado region, Brazil
- Author
-
Gabriel Parmezani Moraes, Andreli Cristina Dalbeto, Reginaldo José Donatelli, Fernanda de Góes Maciel, Vagner Cavarzere, Universidade de São Paulo (USP), and Universidade Estadual Paulista (Unesp)
- Subjects
Transecções lineares ,Transect counts ,Áreas marginais de Cerrado ,Geography ,Cerrado sensu lato ,lcsh:Zoology ,Animal Science and Zoology ,Forestry ,Endemic species ,Peripheral Cerrado areas ,lcsh:QL1-991 ,Espécies endêmicas - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:55:22Z No. of bitstreams: 1 S0031-10492011001700001.pdf: 1504469 bytes, checksum: 94f66e841f40cb9e53c049bc233ee4c3 (MD5) Made available in DSpace on 2013-08-22T18:55:22Z (GMT). No. of bitstreams: 1 S0031-10492011001700001.pdf: 1504469 bytes, checksum: 94f66e841f40cb9e53c049bc233ee4c3 (MD5) Previous issue date: 2011-01-01 Made available in DSpace on 2013-09-30T19:48:08Z (GMT). No. of bitstreams: 2 S0031-10492011001700001.pdf: 1504469 bytes, checksum: 94f66e841f40cb9e53c049bc233ee4c3 (MD5) S0031-10492011001700001.pdf.txt: 67781 bytes, checksum: b612409120114272e76edbab78a051d9 (MD5) Previous issue date: 2011-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:12:47Z No. of bitstreams: 2 S0031-10492011001700001.pdf: 1504469 bytes, checksum: 94f66e841f40cb9e53c049bc233ee4c3 (MD5) S0031-10492011001700001.pdf.txt: 67781 bytes, checksum: b612409120114272e76edbab78a051d9 (MD5) Made available in DSpace on 2014-05-20T15:12:47Z (GMT). No. of bitstreams: 2 S0031-10492011001700001.pdf: 1504469 bytes, checksum: 94f66e841f40cb9e53c049bc233ee4c3 (MD5) S0031-10492011001700001.pdf.txt: 67781 bytes, checksum: b612409120114272e76edbab78a051d9 (MD5) Previous issue date: 2011-01-01 O Cerrado ainda recebe pouca atenção no que diz respeito à ornitologia embora seja a única savana tropical do mundo considerada um hotspot de biodiversidade. O cerradão é uma das fisionomias menos conhecidas e mais desmatadas do bioma e poucos levantamentos avifaunísticos foram realizados nessas florestas. Para revisar os estudos sobre aves de cerradão e complementar os poucos inventários já existentes realizados nesse tipo florestal no estado de São Paulo, foi realizado um levantamento bibliográfico dos estudos publicados sobre aves de cerradão. Adicionalmente foi conduzido um levantamento das aves de um fragmento de cerradão de 314 ha localizado na região central do estado de São Paulo, Brasil, entre setembro de 2005 e dezembro de 2006 com a utilização de transecções lineares com raio ilimitado de detecção. de 95 estudos envolvendo aves de cerradão, apenas 17 (18%) discriminaram espécies registradas dentro desta fisionomia daquelas que obtiveram registros em outros ambientes de Cerrado. Exceto por um estudo, nenhuma outra investigação encontrou mais de 64 espécies de aves neste ambiente, resultado compartilhado com diversas regiões do Brasil e também da Bolívia. Diferenças no número de espécies entre cerradões não puderam ser atribuídas à degradação dos ambientes estudados ou tamanho de fragmento. Considerando os registros de cerradões no Brasil e na Bolívia, a compilação de dados acumulou 250 espécies distribuídas em 36 famílias e 15 ordens. Durante nossos trabalhos de campo em localidade do interior paulista foram registradas 48 espécies distribuídas em 20 famílias, incluindo o fruxu-do-cerradão (Neopelma pallescens), ameaçada em São Paulo, e o soldadinho (Antilophia galeata), quase ameaçada no estado e endêmica do Cerrado. Dentre as espécies mais abundantes no fragmento, nenhuma delas é ameaçada ou endêmica do bioma. The Cerrado region still receives relatively little ornithological attention, although it is regarded as the only tropical savanna in the world considered to be a biodiversity hotspot. Cerradão is one of the least known and most deforested Cerrado physiognomies and few recent bird surveys have been conducted in these forests. In order to rescue bird records and complement the few existing inventories of this under-studied forest type in the state of São Paulo, we looked for published papers on birds of cerradão. Additionally we surveyed birds at a 314-ha cerradão remnant located in central São Paulo, Brazil, from September 2005-December 2006 using unlimited distance transect counts. Out of 95 investigations involving cerradão bird studies, only 17 (18%) investigations teased apart bird species recorded inside cerradão from those recorded in other physiognomies of Cerrado. Except for one study, no research found more than 64 species in this type of forest, a result shared within many regions from Brazil and Bolivia. Differences in species richness do not seem be related with levels of disturbance of landscape or fragment size. Considering all species recorded in cerradão in Brazil and Bolivia, a compilation of data accumulated 250 species in 36 families and 15 orders. In recent surveys at central São Paulo, we recorded 48 species in 20 families, including the Pale-bellied Tyrant-Manakin Neopelma pallescens, threatened in São Paulo, and the Helmeted Manakin Antilophia galeata, near threatened in the state and endemic to the Cerrado region. Among the most abundant species inside this fragment, none was considered to be neither threatened nor endemic. Universidade de São Paulo Instituto de Biociências Departamento de Zoologia Universidade Estadual Paulista Departamento de Ciências Biológicas Universidade Estadual Paulista Instituto de Biociências Universidade Estadual Paulista Departamento de Ciências Biológicas Universidade Estadual Paulista Instituto de Biociências
- Published
- 2011
9. Boracéia Biological Station: an ornithological review
- Author
-
Luís Fábio Silveira, Vagner Cavarzere, Gabriel Parmezani Moraes, Universidade Estadual Paulista (Unesp), and Universidade de São Paulo (USP)
- Subjects
Richness ,Transectos lineares ,Transect counts ,Montane Atlantic forest ,Riqueza ,Mist-net ,Endangered species ,Redes de neblina ,Coleção ornitológica ,Archaeology ,Mist net ,Geography ,Mata Atlântica Montana ,Ornithological collection ,Threatened species ,lcsh:Zoology ,Animal Science and Zoology ,Atlantic forest ,Species richness ,lcsh:QL1-991 ,Ornithology ,Transect ,Endemism ,Cartography - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:55:21Z No. of bitstreams: 1 S0031-10492010001300001.pdf: 751292 bytes, checksum: ca0e71f376025297bb56f1dced1d944d (MD5) Made available in DSpace on 2013-08-22T18:55:21Z (GMT). No. of bitstreams: 1 S0031-10492010001300001.pdf: 751292 bytes, checksum: ca0e71f376025297bb56f1dced1d944d (MD5) Previous issue date: 2010-01-01 Made available in DSpace on 2013-09-30T19:48:06Z (GMT). No. of bitstreams: 2 S0031-10492010001300001.pdf: 751292 bytes, checksum: ca0e71f376025297bb56f1dced1d944d (MD5) S0031-10492010001300001.pdf.txt: 41071 bytes, checksum: e980b8d4aba581e2effc4dca7e08b7c6 (MD5) Previous issue date: 2010-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:12:47Z No. of bitstreams: 2 S0031-10492010001300001.pdf: 751292 bytes, checksum: ca0e71f376025297bb56f1dced1d944d (MD5) S0031-10492010001300001.pdf.txt: 41071 bytes, checksum: e980b8d4aba581e2effc4dca7e08b7c6 (MD5) Made available in DSpace on 2014-05-20T15:12:47Z (GMT). No. of bitstreams: 2 S0031-10492010001300001.pdf: 751292 bytes, checksum: ca0e71f376025297bb56f1dced1d944d (MD5) S0031-10492010001300001.pdf.txt: 41071 bytes, checksum: e980b8d4aba581e2effc4dca7e08b7c6 (MD5) Previous issue date: 2010-01-01 Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) A Estação Biológica de Boracéia, localizada em Salesópolis, SP, situa-se na Serra do Mar, importante região biogeográfica e um dos centros de endemismo mais bem definidos do Brasil. Apesar de instituída em 1954, quando passou a pertencer ao Museu de Zoologia da Universidade de São Paulo, a avifauna desta localidade já era objeto de pesquisas desde a década de 1940, época em que foram realizadas as primeiras coletas de aves. Aqui é apresentada pela primeira vez uma revisão de todos os registros avifaunísticos realizados nessa localidade ao longo de mais de 68 anos assim como a adição de novos registros com base em dados coletados recentemente com transectos lineares e redes de neblina. Os registros para Boracéia estiveram representados em museus, na literatura e em dados não publicados que, somados aos registros recentes, acumularam 323 espécies de aves para a localidade. Destas, 117 são endêmicas da Mata Atlântica e 28 estão sob diferentes graus de ameaça no Estado. Embora alguns registros possam ser duvidosos e necessitem de confirmação, algumas espécies representam os únicos registros para o Estado. Boracéia inclui ainda uma espécie recém descoberta em áreas próximas, sendo de grande importância para a conservação das aves de Mata Atlântica. 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 also considered. of these, 117 are endemic to the Atlantic forest and 28 are threatened in the state. Although there are a few doubtful records that need to be checked, some species are the only sightings in the state. Boracéia includes a recently discovered species near the station site and is extremely important for the conservation of Atlantic forest birds. Universidade de São Paulo Departamento de Zoologia Universidade Estadual Paulista Departamento de Ciências Biológicas Universidade de São Paulo Museu de Zoologia Universidade Estadual Paulista Departamento de Ciências Biológicas
- Published
- 2010
10. Does the reproductive season account for more records of birds in a marked seasonal climate landscape in the state of São Paulo, Brazil?
- Author
-
Vagner Cavarzere
- Subjects
Seasonal abundance ,Período de amostragem ,media_common.quotation_subject ,Breeding season ,Zoology ,Biology ,Reproductive season ,Região neotropical ,lcsh:Zoology ,parasitic diseases ,Seasonal breeder ,Temperate climate ,lcsh:QL1-991 ,Neotropical region ,Transect ,Estação reprodutiva ,Seasonal species richness ,media_common ,Abundância sazonal ,Significant difference ,Reproductive behavior ,Sampling period ,Seasonal climate ,Animal Science and Zoology ,Reproduction ,Riqueza sazonal ,Clima sazonal ,Global biodiversity - Abstract
Investigators have reported that birds from temperate regions are more detectable during their breeding seasons, which should be used to adequately survey avifaunas. In the state of São Paulo, southeastern Brazil, the rainiest months of the year are usually associated with a peak in the reproduction of birds. To test the hypothesis that birds are equally detectable throughout the year, I conducted transect counts of birds in a predominantly open Cerrado landscape in São Paulo during 2005 and 2006. There was no significant difference in the number of species or individuals between breeding (rainy) and nonbreeding (dry) seasons; 24% of the species with >; 50 contacts was likely to be recorded more often in a particular season. Unlike temperate regions, where vocal behavior plays an important role in detections of birds during and after reproductive seasons, my results suggest that Cerrado birds may be evenly detected throughout the year. Estudos em regiões temperadas demonstraram que as aves são mais ativas durante períodos reprodutivos, os quais são consequentemente considerados mais eficientes para o censo de aves. No Estado de São Paulo, sudeste do Brasil, os meses mais chuvosos são geralmente associados aos picos de reprodução da avifauna. Para testar a hipótese de que as aves são igualmente detectáveis ao longo do ano, foi realizado o censo das aves de uma área de cerrado predominantemente aberto no interior de São Paulo utilizando-se a metodologia de transecção linear entre os anos de 2005 e 2006. Não houve diferença significativa do número de espécies ou do número de contatos registrado entre períodos reprodutivo (chuvoso) e não reprodutivo (seco); 24% das espécies com mais de 50 contatos tendeu a ser significativamente mais comum em um dos dois períodos. Diferente de regiões temperadas, onde o comportamento vocal das aves influencia sua detectabilidade durante e após estações reprodutivas, resultados aqui encontrados sugerem que aves de cerrado podem ser igualmente detectáveis ao longo do ano.
- Published
- 2013
- Full Text
- View/download PDF
11. Recommendations for monitoring avian populations with point counts: a case study in southeastern Brazil
- Author
-
Vagner Cavarzere, Reginaldo José Donatelli, Gabriel Parmezani Moraes, Luís Fábio Silveira, James J. Roper, Universidade de São Paulo (USP), Universidade Estadual Paulista (Unesp), and Universidade Federal do Paraná (UFPR)
- Subjects
Protocolos metodológicos ,Variação sazonal ,Seasonal variation ,Methodological protocols ,Temporal variation ,Geography ,Variação temporal ,lcsh:Zoology ,Breeding Bird Survey ,Bird surveying method ,Pan-European Common Bird Monitoring Scheme ,Animal Science and Zoology ,lcsh:QL1-991 ,Humanities ,Christmas Bird Count ,Método de censo para avifauna - Abstract
Made available in DSpace on 2014-10-01T13:08:56Z (GMT). No. of bitstreams: 0 Previous issue date: 2013Bitstream added on 2014-10-01T14:02:53Z : No. of bitstreams: 1 S0031-10492013003200001.pdf: 1669347 bytes, checksum: 8608080a0fc8bcf3a144a8cc1b6c3b9e (MD5) No hemisfério norte, o censo de aves é fundamental para gerar informações que auxiliam na compreensão de tendências populacionais. Tais censos, devido à marcada sazonalidade deste hemisfério, são realizados durante dois momentos distintos: na estação reprodutiva (aves residentes) e no inverno (quando as aves migratórias deixam determinadas regiões). Na região neotropical, porém, dependendo da localidade, as aves podem se reproduzir durante qualquer ou vários períodos do ano; podem ou não migrar, e aquelas que o fazem podem apresentar um padrão assincrônico. Em contraste com o hemisfério norte, tendências populacionais são desconhecidas, bem como o impacto das taxas rápidas de urbanização e desmatamento, que também são pouco monitoradas. Para melhor entender padrões temporais de riqueza e abundância de aves, e avaliar como um censo similar pode ser implementado na América tropical, foram utilizados pontos de escuta ao longo de 12 meses em uma localidade no Estado de São Paulo, sudeste do Brasil. Os censos ocorreram duas vezes por dia (manhãs/tardes) em uma floresta semidecidual ao longo de transecções com 10 pontos (20 pontos por dia) distantes 200 m entre si e com raio de detecção limitado em 100 m. Ambas as riquezas e abundâncias de aves foram maiores durante as manhãs, mas as curvas de acumulação sugerem que os censos vespertinos com maior esforço amostral podem fornecer resultados similares aos censos matutinos. Riqueza e abundância das aves não variam de acordo com estações (i.e., sem padrão aparente entre reprodução e migração), enquanto espécies exclusivas foram encontradas todos os meses e relativamente poucas espécies (20%) foram registradas em todos os meses do ano. Durante este ano, 84% de todas as aves florestais da área estudada foram registradas. Sugerimos que a metodologia de pontos de escuta pode ser utilizada à semelhança dos censos do hemisfério norte. Recomendamos ainda que o esforço amostral em transecções deva incluir ao menos 20 pontos, e que o início da contagem das aves deva ser sazonal, utilizando o período de migração das espécies austrais (e os seis meses seguintes) para coordenar pontos de escuta. Por último, sugerimos que os censos no Brasil e até mesmo na América Latina podem ajudar no entendimento de tendências populacionais, mas também demandam maior esforço do que o observado em latitudes temperadas, devido à maior riqueza de espécies e diferenças nas dinâmicas de reprodução e migração. Por meio do uso de censos de aves coordenados poderá ser desenvolvida uma técnica para os trópicos que irá gerar informações que permitam acompanhar tendências populacionais, com benefícios para a conservação das aves, similarmente aos censos realizados em países do hemisfério norte. 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, southeastern Brazil, to examine how to implement similar bird counts in tropical America. We counted birds twice each day on 10 point transects (20 points day‑1), separated by 200 m, with a 100 m limited detection radius in a semideciduous tropical forest. Both species richness and bird abundance were greater in the morning, but accumulation curves suggest that longer-duration afternoon counts would reach the same total species as in morning counts. Species richness and bird abundance did not vary seasonally and unique species were counted every month; relatively few species (20%) were present in all months. Most (84%) known forest species in the area were encountered. We suggest that point counts can work here as they do in the northern hemisphere. We recommend that transects include at least 20 points and that the simplest timing of bird counts would also be seasonal, using timing of migration of austral migrants (and six months later) to coordinate counts. We propose that bird counts in Brazil, and elsewhere in Latin America, would provide data to help understand population trends, but would require greater effort than in temperate latitudes due to greater species richness and different dynamics of reproduction and migration. With collaboration among ornithologists and coordinated bird surveys, we may develop a technique for the tropics that would yield information for population trends and conservation of birds, similar to counts in temperate latitudes. Universidade de São Paulo Instituto de Biociências Departamento de Zoologia Universidade de São Paulo Museu de Zoologia Universidade Estadual Paulista Departamento de Ciências Biológicas Universidade Federal do Paraná Universidade Estadual Paulista Departamento de Ciências Biológicas
- Published
- 2013
12. List of documented bird species from the municipality of Ubatuba, state of São Paulo, Brazil
- Author
-
Vagner Cavarzere, Rick Simpson, and Elis Simpson
- Subjects
Transecções lineares ,Transect counts ,Forestry ,Documentation of records ,Geography ,Mata Atlântica ,lcsh:Zoology ,Avifauna ,Atlantic Forest ,Animal Science and Zoology ,Atlantic forest ,lcsh:QL1-991 ,Ornithology ,Endemism ,Historical record ,Registros documentados ,Serra do Mar - Abstract
Embora estudos preliminares tenham sido realizados em Ubatuba, localidade situada em área de Mata Atlântica, ainda não existe uma listagem dos registros documentados das espécies de aves deste município litorâneo. Para a realização deste compêndio foi realizada busca na literatura, assim como outras fontes, dos registros documentados das espécies de aves de Ubatuba, Estado de São Paulo. Adicionalmente, inventários não sistematizados seguindo a metodologia de transecção linear foram conduzidos ao longo dos últimos sete anos em diferentes regiões e altitudes do município para o registro documentado das espécies. O número total de espécies documentadas foi de 417, das quais 11% são endêmicas do Brasil. Outros 26% representam endemismos da Mata Atlântica e 60 espécies estão ameaçadas ou quase ameaçadas de extinção no Estado. Espécies reportadas para o município, porém sem documentação, somaram 49, incluídas em 27 famílias. Comparando-se os registros atuais com os históricos, nenhuma espécie foi extinta do município. Ubatuba é uma das regiões mais conhecidas ornitologicamente da Serra do Mar paulista, mas ainda há algumas localidades em maiores altitudes que devem trazer novos registros para a área com o aumento dos esforços de observação de aves em tais locais. Although preliminary surveys have been conducted at the Atlantic Forest of Ubatuba, there is no list of documented bird records from this coastline municipality. To organize such a compilation, we searched the literature and a number of different sources for all documented records of birds from Ubatuba, state of São Paulo. We further carried out a 7-year non-systematic bird inventory in different regions and elevations to document the species within the municipality. The total number of documented bird species is 417, 11% of which are endemic to Brazil. Another 26% are Atlantic Forest endemics and as many as 60 species are under threat categories, including near-threatened birds, in the state. Some 49 species of 27 families are reported from the municipality but still lack documentation. Considering historical records, no species have extinguished from the municipality. Ubatuba is one of the most studied regions along Serra do Mar in São Paulo regarding its ornithology, but there are still high-elevational gaps that will yield significant additions of species to the area with increasing surveying efforts.
- Published
- 2012
13. On the use of 10-minute point counts and 10-species lists for surveying birds in lowland Atlantic Forests in southeastern Brazil
- Author
-
Thiago V. V. Costa, Luís Fábio Silveira, and Vagner Cavarzere
- Subjects
Bird species richness ,Rapid assessment programs ,Geography ,Surveying methods ,lcsh:Zoology ,Metodologias de censo ,Riqueza de aves ,Animal Science and Zoology ,MacKinnon lists ,lcsh:QL1-991 ,Humanities ,Cartography ,Bertioga ,Levantamentos rápidos da avifauna ,Listas de MacKinnon - Abstract
Devido ao rápido e contínuo desmatamento, inventários avifaunísticos realizados na Mata Atlântica têm seguido protocolos de levantamentos rápidos para acumular uma grande quantidade de informação em períodos de tempo relativamente curtos. Para averiguar qual metodologia deve mais rapidamente acumular o maior número de espécies (cerca de 90% das espécies estimadas a partir de dados empíricos), foram realizados pontos de escuta de 10 minutos e listas de 10 espécies em florestas de baixada da Mata Atlântica de São Paulo durante as estações reprodutivas entre 2008 e 2010. De maneira geral, pontos detectaram tantas espécies quanto as listas (79 versus 83, respectivamente), sendo que 88 pontos (14,7 h) detectaram 90% da riqueza estimada. Quarenta e uma listas foram insuficientes para o registro de 90% da riqueza estimada, porém acumularam mais rapidamente o número de espécies e num período mais curto de tempo, provavelmente devido à natureza da metodologia de pontos de escuta, na qual espécies registradas durante a locomoção entre pontos não são consideradas. Levantamentos rápidos nessas florestas irão rapidamente detectar mais espécies com a utilização das listas de 10 espécies. As metodologias compartilharam 63% das espécies registradas, mas este resultado pode refletir diferenças nas amostragens definidas em localidades e intervalo de tempo distintos durante a realização das amostragens. 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, lists accumulated species faster in a shorter time period, probably due to the nature of the point count method in which species detected while moving between points are not considered. Rapid assessment programs in these forests will rapidly detect more species using 10-species lists. Both methods shared 63% of all forest species, but this may be due to spatial and temporal mismatch between samplings of each method.
- Published
- 2012
14. Avifauna da Estação Ecológica dos Caetetus, interior de São Paulo, Brasil
- Author
-
Gabriel Parmezani Moraes, Vagner Cavarzere, Reginaldo José Donatelli, Universidade Estadual Paulista (Unesp), and Universidade de São Paulo (USP)
- Subjects
Point Counts ,Ecology ,Endangered species ,Forestry ,Cerrado ,Birds ,Geography ,Mata Atlântica ,lcsh:Zoology ,Pontos de Escuta ,Seasonal semideciduous forest ,Animal Science and Zoology ,Atlantic forest ,lcsh:QL1-991 ,Endemism ,Aves ,Mata estacional semidecídua - Abstract
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2013-08-22T18:55:20Z No. of bitstreams: 1 S0031-10492009003500001.pdf: 718493 bytes, checksum: b2de5dac8c3df11b976aaa42cce4a28b (MD5) Made available in DSpace on 2013-08-22T18:55:20Z (GMT). No. of bitstreams: 1 S0031-10492009003500001.pdf: 718493 bytes, checksum: b2de5dac8c3df11b976aaa42cce4a28b (MD5) Previous issue date: 2009-01-01 Made available in DSpace on 2013-09-30T19:48:02Z (GMT). No. of bitstreams: 2 S0031-10492009003500001.pdf: 718493 bytes, checksum: b2de5dac8c3df11b976aaa42cce4a28b (MD5) S0031-10492009003500001.pdf.txt: 34411 bytes, checksum: bfa4b036b527b7b01d200971d1350fca (MD5) Previous issue date: 2009-01-01 Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T15:12:46Z No. of bitstreams: 2 S0031-10492009003500001.pdf: 718493 bytes, checksum: b2de5dac8c3df11b976aaa42cce4a28b (MD5) S0031-10492009003500001.pdf.txt: 34411 bytes, checksum: bfa4b036b527b7b01d200971d1350fca (MD5) Made available in DSpace on 2014-05-20T15:12:46Z (GMT). No. of bitstreams: 2 S0031-10492009003500001.pdf: 718493 bytes, checksum: b2de5dac8c3df11b976aaa42cce4a28b (MD5) S0031-10492009003500001.pdf.txt: 34411 bytes, checksum: bfa4b036b527b7b01d200971d1350fca (MD5) Previous issue date: 2009-01-01 A Estação Ecológica dos Caetetus possui um dos maiores remanescentes de mata estacional semidecídua ainda presentes no Estado de São Paulo. Poucos estudos foram realizados nessa localidade, extremamente importante no que diz respeito às aves da Mata Atlântica do interior do Estado. Para caracterizar a avifauna da estação com dados recentes e contribuir com novos registros, foi realizado um levantamento da avifauna utilizando-se o método de Pontos de Escuta entre outubro de 2005 e dezembro de 2006. Foram registradas 226 espécies enquanto diversos autores registraram outras 68, para um total de 293. Muitas espécies são endêmicas da Mata Atlântica ou do Cerrado e algumas são ameaçadas no Estado, justificando a existência dessa unidade de conservação e provando a necessidade de inventários em longo prazo e da preservação de fragmentos de mata estacional semidecídua nativa. Caetetus Ecological Station harbors one of the largest seasonal semideciduous forest remnants in the state of São Paulo. Few investigators have conducted bird surveys in this locality, one of the most important sites regarding Atlantic forest birds from the interior of the state. In order to determine the station's avifauna with recently collected data and to contribute with new records we censused the bird community using the Point Count method from October 2005 to December 2006. We recorded 226 species whereas other authors have recorded another 68, for a total of 293 for the station. Many species were Atlantic forest or Cerrado endemics and some were endangered in the state, justifying the existence of this conservation unit and proving the need of long-term surveys and preservation of seasonal semideciduous forests native fragments. Universidade Estadual Paulista Departamento de Ciências Biológicas Universidade Estadual Paulista Departamento de Ciências Biológicas
- Published
- 2009
15. A new look at the holotype and type locality of Setopagis maculosa (Todd, 1920) Aves: Caprimulgidae), with remarks on its systematic relationships
- Author
-
Thiago V. V. Costa, Vagner Cavarzere, Johan Ingels, and Luís Fábio Silveira
- Subjects
biology ,Holotype ,Zoology ,Caprimulgiformes ,Body size ,biology.organism_classification ,Genealogy ,Habitat ,Plumage ,Animal Science and Zoology ,Type locality ,Taxonomy (biology) ,Cayenne nightjar ,Ecology, Evolution, Behavior and Systematics - Abstract
Setopagis maculosa (Todd, 1920) (Aves: Caprimulgidae) was described based on a single male specimen collected by Samuel Milton Klages in French Guiana, northeastern South America. Since then, no new specimens have been collected nor have any reliable records been made, and the validity of the species has been questioned. A detailed analysis of the holotype reveals that it has unique and distinctive morphological traits that support the validity and taxonomic status of the species, which is provisionally placed in Setopagis. We present new information on the type locality at the time of its collection, which may shed some light on the habitat preferences of the species, and we provide details on its plumage that have been largely overlooked and that will be important for future field identification.
- Published
- 2015
- Full Text
- View/download PDF
16. On the correct holotype and type locality of Cercomacra sclateri Hellmayr 1905 (Aves: Thamnophilidae)
- Author
-
Luís Fábio Silveira, Rafael S. Marcondes, Thiago V. V. Costa, Vagner Cavarzere, and Mary LeCroy
- Subjects
biology ,Cercomacra ,Holotype ,Zoology ,Animal Science and Zoology ,Type locality ,biology.organism_classification ,Ecology, Evolution, Behavior and Systematics - Abstract
Cercomacra cinerascens Hellmayr 1905 is a medium-sized species of antbird distributed throughout the Amazon Basin in South America. It comprises a complex of four currently recognized taxa, C. c. cinerascens (Sclater 1857), C. c. immaculata Chubb 1918, C. c. sclateri Hellmayr 1905 and C. c. iterata Zimmer 1932, all characterized by the grey coloration of males and brownish olive coloration of females, long and graduated white-tipped tails, hidden white interscapular patch and distinct stiff rictal bristles. All subspecies primarily inhabit unflooded terra firme forests, the former two occurring north of the Rio Amazonas and the latter two in southern Amazonia (Fig. 1, Zimmer & Isler 2003).
- Published
- 2012
- Full Text
- View/download PDF
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.