Análise comparativa da assembléia de aves em dois remanescentes florestais no interior do Estado de São Paulo, Brasil

Donatelli, Reginaldo José; Ferreira, Carolina Demetrio; Dalbeto, Andreli Cristina; Posso, Sérgio Roberto

doi:10.1590/s0101-81752007000200015

Cited by 18 publications

(21 citation statements)

References 9 publications

(8 reference statements)

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“…Categories based on Motta-Junior (1990) and Sick (1997). areas and also occurred in high frequencies in other studies (Donatelli et al, 2007).…”

Section: Similarities Among Areassupporting

confidence: 69%

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Bird communities in two fragments of Cerrado in Itirapina, Brazil

Telles

Dias

2010

Braz. J. Biol.

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The Cerrado domain is a mosaic of vegetation types at the local scale, and this environmental heterogeneity leads to high regional bird diversity. Therefore, we aimed to survey quantitative and qualitatively the bird fauna of two fragments of Cerrado and to compare them with an adjacent protected area (Estação Ecológica de Itirapina), in order to assess the heterogeneity of bird diversity in the region. The present study was conducted during 12 months from October 2006 to September 2007 in the municipality of Itirapina, Southeastern Brazil. Altogether we recorded 210 bird species. Fifty-six of them had never been detected in Estação Ecológica de Itirapina, and eleven species are new records for the whole Itirapina region. The list also includes six species that are endangered in Sao Paulo State and five endemic species of the Cerrado domain. Most species were recorded in less than 50% of the visits and exhibited low relative abundance. Primarily insectivorous species were the most common, followed by omnivores. Frugivorous birds were poorly represented. Carnivores were more abundant than usually observed in fragments. The similarity among fragments was higher than between fragments and the protected area. Considering the vegetation heterogeneity in the Cerrado domain, our results reinforce the importance of conserving fragments in order to sample this diversity.Keywords: avifauna, forest fragmentation, environmental heterogeneity. Comunidades de aves em dois fragmentos de Cerrado em Itirapina, BrasilResumo O mosaico de tipos vegetacionais que formam o Cerrado contribui para a alta diversidade de aves deste domínio. O presente trabalho teve como objetivo principal realizar os levantamentos qualitativo e quantitativo da avifauna de dois fragmentos de Cerrado e compará-los aos resultados encontrados em uma área adjacente de Cerrado (Estação Ecológica de Itirapina). O trabalho foi realizado entre outubro de 2006 e setembro de 2007, no município de Itirapina, região central do Estado de São Paulo, Brasil. Registramos um total de 210 espécies de aves. Destas, 56 ainda não haviam sido registradas na Estação Ecológica e onze espécies são novos registros para a região de Itirapina. A lista dos fragmentos inclui seis espécies ameaçadas no Estado de São Paulo e cinco espécies endêmicas de Cerrado. A maioria das espécies foi detectada em menos de 50% das visitas e apresentou baixa abundância relativa. A classificação em categorias tróficas indicou a prevalência de espécies predominantemente insetívoras, seguidas pelas onívoras. Os frugívoros foram pouco representados e a quantidade de carnívoros foi superior à geralmente encontrada em fragmentos. A similaridade encontrada entre os fragmentos foi maior que a encontrada entre os fragmentos e Estação Ecológica. Os resultados reforçam a importância da conservação dos fragmentos de Cerrado, uma vez que a heterogeneidade de tipos vegetacionais é importante para a conservação da biodiversidade local.Palavras-chave: avifauna, fragmentação florestal, heterogeneidade ambiental.

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“…Categories based on Motta-Junior (1990) and Sick (1997). areas and also occurred in high frequencies in other studies (Donatelli et al, 2007).…”

Section: Similarities Among Areassupporting

confidence: 69%

“…The high percentage of species with low FO is commonly found in other studies (Almeida et al, 1999;Donatelli et al, 2007). Almeida et al (1999) attribute the results to the occurrence of wandering, occasional or migratory species.…”

Section: Frequency Of Occurrencesupporting

confidence: 59%

Bird communities in two fragments of Cerrado in Itirapina, Brazil

Telles

Dias

2010

Braz. J. Biol.

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“…The numbers of adult and young individuals captured during the time period were log-transformed. The species list and nomenclature used here are according to the Brazilian Ornithological Records Committee (2011).…”

Section: Methodsmentioning

confidence: 99%

“…The effects of fragmentation processes on Brazilian tropical bird communities have been well documented. Data concerns mainly immediate consequences (bierregaard jr. & LoVejoy, 1989;bierregaard jr. & Stouffer, 1997;brookS et al, 1999;Stratford & Stouffer, 1999) or are assessments of the communities of old fragments after years of isolation (anjoS, 2001;ribon et al, 2003;pozza & pireS, 2003;donateLLi et al, 2007). Long-term surveys of the Brazilian avifauna are still relatively scarce.…”

mentioning

confidence: 99%

Bird community in an Araucaria forest fragment in relation to changes in the surrounding landscape in Southern Brazil

Scherer-Neto

Toledo

2012

Iheringia, Sér. Zool.

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ABSTRACT. The dynamics of the bird community in a small forest fragment was evaluated along seven years in relation to changes in the surrounding landscape. The study area is an Araucaria forest fragment in Southern Brazil (state of Paraná). The sampling period covered the years 1988 through 1994 and the mark-release-recapture method was utilized. The landscape analysis was based on Landsat TM images, and changes in exotic tree plantations, native forest, open areas (agriculture, pasture, bare soil, and abandoned field), and "capoeira"(native vegetation ≤ 2 m) were quantified. The relationship between landscape changes and changes in abundance diversity of forest birds, open-area birds, forest-edge birds, and bamboo specialists was evaluated. Richness estimates were run for each year studied. The richness recorded in the study area comprised 96 species. The richness estimates were 114, 118 and 110 species for Chao 1, Jackknife 1 and Bootstrap, respectively. The bird community varied in species richness, abundance and diversity from year to year. As for species diversity, 1991, 1993 and 1994 were significantly different from the other years. Changes in the landscape contributed to the increase in abundance and richness for the groups of forest, open-area and bamboo-specialist species. An important factor discussed was the effect of the flowering of "taquara" (Poaceae), which contributed significantly to increasing richness of bamboo seed eaters, mainly in 1992 and 1993. In general, the results showed that landscape changes affected the dynamics and structure of the bird community of this forest fragment over time, and proved to have an important role in conservation of the avian community in areas of intensive forestry and agricultural activities. KEYWORDS.Richness, abundance, diversity, long-term assessment, state of Paraná.RESUMO. Comunidade de aves em um fragmento de floresta de araucária em relação a mudanças na paisagem circundante no sul do Brasil. Este estudo avaliou a dinâmica da comunidade de aves em um fragmento florestal ao longo de sete anos e correlacionou às mudanças ocorridas na paisagem circundante. A área de estudo localiza-se na Região Sul do Brasil (Estado do Paraná) e a vegetação está representada por Floresta Ombrófila Mista. O período de amostragem ocorreu entre os anos de 1988 a 1994 e o método utilizado foi captura-marcação e recaptura. Para análise da mudança no uso e cobertura da paisagem foram utilizadas imagens Landsat TM e um sistema de informação geográfico. Quatro classes foram usadas, sendo: plantios com espécies exóticas, floresta nativa, capoeiras (vegetação nativa < 2 m de altura) e áreas abertas (campo abandonado, pastagens, área agrícola e solo exposto). Foi analisada a relação entre as mudanças na paisagem e as mudanças na abundância e diversidade de aves de floresta, de área aberta, de borda e especialistas de bambu. Foram calculadas as estimativas de riqueza para cada ano estudado. A riqueza registrada na área de estudo foi de 96 espécies e as estimativas foram 114, 118 e ...

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“…These groups are usually dominant in the Cerrado domain (MottaJunior 1990, Donatelli et al 2004, Piratelli and Blake 2006, Manica et al 2010, Vieira et al 2013) and other Brazilian phytogeographic domains (Willis 1979, Aleixo 1999, Anjos 2001, Silveira et al 2003, Santos 2004, Olmos et al 2005, Telino-Júnior et al 2005, Roos et al 2006, Donatelli et al 2007, Silveira and Machado 2012.…”

Section: Chlorotica Pitangus Sulphuratus Lepidocolaptes Angustirostmentioning

confidence: 99%

Composition and structure of bird communities in vegetational gradients of Bodoquena Mountains, western Brazil

Godoi

Souza

Laps

et al. 2016

An. Acad. Bras. Ciênc.

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The informations of bird species distribution in different habitats and the structure of their communities are crucial for bird conservation. We tested the differences in composition, richness and abundance of birds in different phytophysiognomies at Bodoquena Mountains, western Brazil, and we demonstrated the variations in richness and abundance of birds between different trophic groups. Sampling was conducted between July 2011 and June 2012 in 200 point counts arranged in the study area. A total of 3350 contacts were obtained belonging to 156 bird species. Woodland savannas, seasonal forests and arboreal savannas had higher bird abundance and richness, while riparian forests, clean pastures and dirty pastures had smaller values of these parameters. The bird community was organized according to local vegetational gradient, with communities of forests, open areas and savannas, although many species occurred in more than one vegetation type. The insectivorous, omnivorous, frugivorous and gramnivorous birds composed most of the community. These data showed how important environmental heterogeneity is to bird communities. Furthermore, the presence of extensive patches of natural habitats, the small distance between these patches and the permeability of pastures, with high arboreal and shrubby cover, are indicated as important factors to maintain the bird diversity.

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Análise comparativa da assembléia de aves em dois remanescentes florestais no interior do Estado de São Paulo, Brasil

Cited by 18 publications

References 9 publications

Bird communities in two fragments of Cerrado in Itirapina, Brazil

Bird communities in two fragments of Cerrado in Itirapina, Brazil

Bird community in an Araucaria forest fragment in relation to changes in the surrounding landscape in Southern Brazil

Composition and structure of bird communities in vegetational gradients of Bodoquena Mountains, western Brazil

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