Protected cerrado fragments grow up and lose even metapopulational birds in central São Paulo, Brazil

Willis, Edwin O.

doi:10.1590/s1519-69842006000500008

Cited by 11 publications

(8 citation statements)

References 6 publications

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“…Although the sampling efforts differed considerably in these studies and comparing them seems inappropriate, these patterns were nonetheless corroborated ( Table 2). Similarity indexes were highest between the municipalities of Bauru and Corumbataí, São Paulo (Willis, 2006), and lowest between Amazonia-influenced Serra do Roncador, Mato Grosso (Fry, 1970) and Agudos, São Paulo (Almeida, 1979). There were no species shared among all of the analyzed inventories, but some tended to be present in most locations, such as the Flavescent Warbler Basileuterus flaveolus, a very common species of both cerradões and semi-deciduous forests from the Cerrado domain (Sick, 1997).…”

Section: Location (Reference) Species Richness Habitat Remnant Size Mmentioning

confidence: 99%

“…These authors only mentioned those species with more than five captures. Willis (2006) recorded 56 species in São Paulo when border and flying over species are excluded. Manica et al (2010) found 29 species in a cerradão remnant in São Paulo, but this cerradão was the least visited habitat by the authors.…”

Section: Bauru Cerradãomentioning

confidence: 99%

“…The loss of Cerrado environments and typical Cerrado bird species have been reported over the last years (Cavalcanti, 1988;Willis & Oniki, 1988, 1992Stotz et al, 1996;Parker & Willis, 1997;Silva & Bates, 2002;Willis, 2004Willis, , 2006, but reduction of Cerrado in São Paulo due to deforestation makes it difficult to study and monitor bird diversity of its remnant vegetation. As cerradões probably are the least known and most protected physiognomies of Cerrado, information about the persisting species in cerradão remains extremely important as relatively few surveys have been conducted in this type of forest in Brazil (Sick, 1955;Fry, 1970;Willis & Oniki, 1981;Tubelis & Tomás, 1999;Dias, 2000;Develey et al, 2005;Piratelli & Blake, 2006;Willis, 2006, Manica et al, 2010Telles & Dias, 2010).…”

Section: Introductionmentioning

confidence: 99%

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Birds from cerradão woodland, an overlooked forest of the Cerrado region, Brazil

et al. 2011

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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.

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Section: Location (Reference) Species Richness Habitat Remnant Size Mmentioning

confidence: 99%

Section: Bauru Cerradãomentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Birds from cerradão woodland, an overlooked forest of the Cerrado region, Brazil

et al. 2011

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“…Species composition was compared to other areas of Cerrado within Sã o Paulo, namely: Botanical Garden/UNESP Reserve in Bauru (Cavarzere et al 2011), Canchim Farm in São Carlos (Manica et al 2010), UNESP Reserve in Corumbataí (Willis 2006), Itirapina Ecological Station (Willis 2004, Motta-Jú nior et al 2008, Fieker et al 2013, Itirapina Experimental Station , Jataí Ecological Station (Dias 2000), Cerrado Pé-de-Gigante/Vassununga State Park (Willis & Oniki 2003, Develey et al 2005, and UFSCar, campus Sã o Carlos (Motta-Jú nior 1990) ( Figure 1). Similarities (Jaccard's index) between areas were evaluated through the UPGMA clustering analysis with Euclidean distance matrix, using the R stats package (R Development Core Team 2008).…”

Section: Bird Censusmentioning

confidence: 99%

Birds at Santa Bárbara Ecological Station, one of the last Cerrado remnants in the state of São Paulo, Brazil

et al. 2015

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In the state of São Paulo, southeastern Brazil, the phytophysiognomy known as Cerrado takes less than 1% of its original cover. Thus, the establishment and management of protected areas are essential to save a significant sample of biodiversity of this environment in the region. The Santa Bárbara Ecological Station is one of the largest protected areas in São Paulo, and one of the few ones to cover a mosaic with most of the vegetation types of Cerrado. This article aims to increase the knowledge of avifauna in the reserve, showing new bird records and evaluating the association of species to their physiognomies. We carried out surveys from 2008 to 2013, which resulted in the record of 226 species, or 246 when in regard to Willis & Oniki’s works (1981, 2003). Twenty-two are regionally threatened, and five globally threatened. Despite showing lower species richness, grasslands stood out because of the number of species of conservation concern. Preventing the densification of woody vegetation and controlling the invasion of alien plants are important management actions for the conservation of the bird assemblages at Santa Bárbara reserve, one of the last open Cerrado remnants in São Paulo.

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“…Um dos pressupostos deste modelo é que as extinções locais podem ser balanceadas por recolonização proveniente de populações de fragmentos florestais vizinhos (Metzger, 1999;Willis, 2006;Hayden e Pianka, 1999). Neste ponto uma pergunta é pertinente: Quais os fatores que levam uma metapopulação a se extinguir?…”

Section: Remanescentes De Floresta Atlântica E Modelos Ecológicosunclassified

Importância De Remanescentes Florestais Para Conservação Da Biodiversidade: Estudo De Caso Na Mata Atlântica Em Sergipe Através De Sensoriamento Remoto

Santos¹,

Carvalho²,

Carvalho³

2013

Rev. Geog. Acadêmica

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RESUMOSão discutidos aspectos relevantes sobre fragmentos florestados para a conservação da biodiversidade e especificamente são analisados 403 remanescentes florestais (31.000 ha) na mata atlântica de Sergipe através de sensoriamento remoto com base em imagens Spot 5 e fotografias aéreas. Os remanescentes foram categorizados em cinco grupamentos: i) Santa Luzia do Itanhy-Estância, ii) Aracaju-São Cristóvão-Itabaiana, iii) Rosário do Catete, iv) Japaratuba, v) Pacatuba-Japoatã. A maioria dos fragmentos variou entre 17 -70 ha; os grupamentos entre Aracaju e Santa Luzia do Itanhy estão entre os maiores. A conectividade entre os fragmentos variou entre 2-19 km; as distâncias médias entre fragmentos variaram em torno de 1 km. Os índices de circularidade variaram entre 0,006-0,31, mostrando prevalência de fragmentos com bordas irregulares.Palavras-chave: remanescentes florestais, sensoriamento remoto, conservação da biodiversidade, mata atlântica, Sergipe. ABSTRACTRelevant aspects of forests fragments for biodiversity conservation are discussed and specifically analyzed 403 forest remnants (31.000 ha) in the Atlantic forest of Sergipe through remote sensing based on Spot 5 images and aerial photos. The remnants were categorized in five groups: i) Santa Luzia do Itanhy-Estância, ii) Aracaju-São Cristóvão-Itabaiana, iii) Rosário do Catete, iv) Japaratuba, v) Pacatuba-Japoatã. The majority of the fragments varied from 17-70 ha; the groups between Aracaju and Santa Luzia do Itanhy are among the largest ones. The connectivity between the fragments varied from 2-19 km; the mean distances between fragments varied around 1 km. The indices of circularity varied from 0.006-0.31, showing prevalence of fragments with irregular edges.

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Protected cerrado fragments grow up and lose even metapopulational birds in central São Paulo, Brazil

Cited by 11 publications

References 6 publications

Birds from cerradão woodland, an overlooked forest of the Cerrado region, Brazil

Birds from cerradão woodland, an overlooked forest of the Cerrado region, Brazil

Birds at Santa Bárbara Ecological Station, one of the last Cerrado remnants in the state of São Paulo, Brazil

Importância De Remanescentes Florestais Para Conservação Da Biodiversidade: Estudo De Caso Na Mata Atlântica Em Sergipe Através De Sensoriamento Remoto

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