Comparação quantitativa da comunidade de aves de um fragmento de floresta semidecidual do interior do Estado de São Paulo em intervalo de 30 anos

Cavarzere, Vagner; Marcondes, Rafael S; Moraes, Gabriel Parmezani; Donatelli, Reginaldo José

doi:10.1590/s0073-47212012000400004

Cited by 8 publications

(5 citation statements)

References 27 publications

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“…O fato de, no intervalo de 25 anos, não terem sido detectadas extinções locais entre as espécies florestais surpreende, quando se consideram os dados disponíveis para outros remanescentes monitorados no interior do Estado de São Paulo (Aleixo e Vielliard, 1995;Willis e Oniki, 2002;Antunes, 2005;Cavarzere et al, 2012). A Fazenda Santa Carlota retém populações de algumas espécies já extintas em fragmentos florestais da região ou em declínio nesses remanescentes, tais como o chocão-carijó (Hypoedaleus guttatus) e o guaxe (Cacicus haemorrhous).…”

Section: Resultsunclassified

Aves da Fazenda Santa Carlota, Cajuru-SP

Antunes¹

2014

IF Série Registros

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RESUMO -As Florestas Estacionais constituem um largo cinturão de transição entre a Mata Atlântica e os domínios adjacentes, e são de enorme valor ecológico e evolutivo pelas interações complexas entre biotas com histórias distintas. O estabelecimento e o manejo adequado de unidades de conservação de proteção integral são indispensáveis para resguardar a biodiversidade destas florestas. O objetivo do presente trabalho foi inventariar a avifauna de um dos remanescentes da Floresta Estacional Semidecidual na antiga Fazenda Santa Carlota em Cajuru-SP e, com isso, subsidiar a avaliação da importância dessa área para a conservação da biodiversidade. A metodologia adotada consistiu em avaliação rápida pelo método de Mackinnon com dez espécies por lista, complementado por busca bibliográfica. Foram registradas 195 espécies, sete destas ameaçadas de extinção no Estado de São Paulo. Nossa análise evidencia a relevância da área estudada para a conservação da biodiversidade regional, justificando a implantação de uma unidade de conservação de proteção integral.Palavras-chave: Conservação; Floresta Estacional Semidecidual; levantamento; Mata Atlân-tica.ABSTRACT -Seasonal Forests provide a broad belt of transition between the Atlantic Forest and its adjacent phytogeographic domains, and they are of enormous ecological and evolutionary value owing to the complex interactions between biota with distinct histories. The establishment and proper management of conservation units of integral protection are indispensable to safeguard the biodiversity of these forests. The aim of this study was to inventory the avifauna from remnants of semideciduous forest in Santa Carlota Farm, municipality of Cajuru, Sao Paulo state, Brazil, and assess the importance of this area for biodiversity conservation. The methodology consisted of a rapid assessment method with Mackinnon lists and literature search. We identified 195 species; seven of them are threatened in the state of Sao Paulo. Our analysis highlights the relevance of the study area for the conservation of regional biodiversity, which justifies the implementation of an integral protection conservation unit.

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Section: Resultsunclassified

Aves da Fazenda Santa Carlota, Cajuru-SP

Antunes¹

2014

IF Série Registros

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“…Kirika, Farwig, and Böhning-Gaese (2008) demonstrated that environmental disturbances significantly reduced frugivorous richness and functional variation, affecting mainly specialist birds. In disturbed habitats such as those in which this experiment was conducted, generalist, opportunistic, and edge-tolerant species are favoured and may be able to forage in forest edges, as well as in its interior (Cavarzere, Marcondes, Moraes, & Donatelli, 2012), compensating for the loss of disturbance-sensitive species (Menezes et al, 2016). Thus, generalist birds may still overexploit some fruits colours that are predominant in the community (i.e.…”

Section: Coloursmentioning

confidence: 99%

<b>Fruit colour and edge effects poorly explains frugivorous bird-plant interactions in disturbed semideciduous forests

Pires

Gonçalves

Ferreira

et al. 2018

Acta Sci. Biol. Sci.

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Fruit colour is considered an important feature mediating interactions between plants and frugivorous birds. Despite that, colour mediated interactions are context-dependent, and habitat disturbances may affect how frugivorous birds perceive fruit colours. This study assessed the influence of fruit colour and edge effect on the consumption of artificial fruits by frugivorous birds in three disturbed semideciduous forests in southeastern Brazil. In each of those areas, we performed a field experiment in which we placed artificial fruits of three different colours on plants and recorded their consumption by birds. Red-coloured fruits were ingested more often than yellow, but neither of them was consumed differently from dark-blue. Edge effect only affected consumption of yellow fruits. Our data neither support the hypothesis of preferential consumption of the highest contrasting colours nor of increased fruit consumption in the forest interior. These findings indicate that colour and edge effects, as well as the interaction between them, may not be strong predictors of fruit choice by birds in disturbed environments, especially because generalist species, which are less sensitive to the physical alterations in forests, are favoured in these areas.

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“…Rapid deforestation for agriculture has been a major agent of land‐use change, especially in southern Brazil, which experienced rapid economic development during the 20th century (Dean 1997, Ribeiro et al 2009, Cardim 2018). The broad reduction in forest area had an overwhelming influence on bird communities, which led to the local extinction of several species and the creation of small and isolated forest remnants, mainly composed of common and generalist birds (Cavarzere et al 2012, 2012, Alexandrino et al 2017). Many of the Anthropocene impacts upon the biota are associated to trophic cascade effects and generate disturbances on the structure of trophic chains as a whole (Magioli et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Isotopic niches of tropical birds reduced by anthropogenic impacts: a 100‐year perspective

Navarro¹,

Magioli²,

Bogoni³

et al. 2021

Oikos

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The intensification of land-use changes in tropical forests during the 20th century, mainly caused by deforestation for agricultural uses, had an overwhelming influence on bird assemblages. However, how these historical anthropogenic changes have impacted the habitat use and diet of tropical birds is poorly known. Stable isotope analysis (δ 13 C and δ 15 N) can be useful in this regard since it provides information not only on the habitat and food resource use but also insights on the dietary niche of species. Here, we aimed to evaluate whether centenary anthropogenic impacts, mainly caused by changes in landscape composition, have affected the resource and habitat use and isotopic niche width of Neotropical birds in a region that comprises two biodiversity hotspots -the Atlantic Forest and Cerrado in southeastern Brazil. We found that the niche width of all bird guilds (frugivore, granivore, insectivore, nectarivore and omnivore) was largely reduced (28-70%) from the 20th century until recently. This niche width reduction was likely associated with historical anthropogenic impacts (e.g. fragmentation, forest loss and change in agricultural practices), which are responsible for the decrease in the availability of habitat and food resources. Moreover, the mean values of δ 15 N decreased over the years in all bird guilds, which might be attributed to the expansion of agricultural areas and the increase in the use of synthetic nitrogen-based fertilizers. All the analyzed species, even though some of them are diet and habitat generalists, were strongly influenced by centenary anthropogenic actions. Our results show the consequences of human-induced changes in land use on the diet and habitat use of tropical birds that persist in fragmented landscapes, which might compromise their long-term survival and provide useful information to the conservation strategies of bird assemblages in modern landscapes.

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Comparação quantitativa da comunidade de aves de um fragmento de floresta semidecidual do interior do Estado de São Paulo em intervalo de 30 anos

Cited by 8 publications

References 27 publications

Aves da Fazenda Santa Carlota, Cajuru-SP

Aves da Fazenda Santa Carlota, Cajuru-SP

<b>Fruit colour and edge effects poorly explains frugivorous bird-plant interactions in disturbed semideciduous forests

Isotopic niches of tropical birds reduced by anthropogenic impacts: a 100‐year perspective

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