Land change in the Brazilian Savanna (Cerrado), 1986–2002: Comparative analysis and implications for land-use policy

Brannstrom, Christian; Jepson, Wendy; Filippi, Anthony M.; Redo, Daniel J.; Xu, Zengwang; Ganesh, Srinivasan

doi:10.1016/j.landusepol.2007.11.008

Cited by 240 publications

(167 citation statements)

References 57 publications

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“…Most studies addressing LUCC in the Cerrado quantify land clearing using the net change in total cover [32,33,58], and estimates of Cerrado natural regeneration are seldom directly informed (e.g. [59]).…”

Section: Discussion (A) Change In Land Use and Land Covermentioning

confidence: 99%

Understanding patterns of land-cover change in the Brazilian Cerrado from 2000 to 2015

Espírito-Santo

Leite

Silva

et al. 2016

Phil. Trans. R. Soc. B

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Clearing tropical vegetation impacts biodiversity, the provision of ecosystem services, and thus ultimately human welfare. We quantified changes in land cover from 2000 to 2015 across the Cerrado biome of northern Minas Gerais state, Brazil. We assessed the potential biophysical and socio-economic drivers of the loss of Cerrado, natural regeneration and net cover change at the municipality level. Further, we evaluated correlations between these land change variables and indicators of human welfare. We detected extensive land-cover changes in the study area, with the conversion of 23 446 km 2 and the natural regeneration of 13 926 km 2 , resulting in a net loss of 9520 km 2 . The annual net loss (−1.2% per year) of the cover of Cerrado is higher than that reported for the whole biome in similar periods. We argue that environmental and economic variables interact to underpin rates of conversion of Cerrado, most severely affecting more humid Cerrado lowlands. While rates of Cerrado regeneration are important for conservation strategies of the remaining biome, their integrity must be investigated given the likelihood of encroachment. Given the high frequency of land abandonment in tropical regions, secondary vegetation is fundamental to maintain biodiversity and ecosystem services. Finally, the impacts of Cerrado conversion on human welfare likely vary from local to regional scales, making it difficult to elaborate land-use policies based solely on socio-economic indicators. This article is part of the themed issue ‘Tropical grassy biomes: linking ecology, human use and conservation’.

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Section: Discussion (A) Change In Land Use and Land Covermentioning

confidence: 99%

Understanding patterns of land-cover change in the Brazilian Cerrado from 2000 to 2015

Espírito-Santo

Leite

Silva

et al. 2016

Phil. Trans. R. Soc. B

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“…Moreover, there are often considerable differences between maps of, apparently at least, the same phenomenon derived by remote sensing See and Fritz, 2006;Potere et al, 2009) which give map user"s uncertainty over which, if any, to adopt Shao and Wu, 2008). Unfortunately this latter situation is sometimes worsened by the poor attention sometimes paid to accuracy assessment, with many maps either not evaluated rigorously or only to a limited extent Brannstrom et al, 2008). …”

Section: Accuracy and Comparisonmentioning

confidence: 99%

An overview of recent remote sensing and GIS based research in ecological informatics

Boyd

Foody

2011

Ecological Informatics

113

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This article provides an overview of some of the recent research in ecological informatics involving remote sensing and GIS. Attention focuses on a selected range of issues including topics such as the nature of remote sensing data sets, issues of accuracy and uncertainty, data visualization and sharing activities as well as developments in aspects of ecological modeling research. It is shown that considerable advances have been made over recent years and foundations for future research established. BackgroundGeotechnology has been couched as one of the three "mega-technologies" of the 21 st century, along with nanotechnology and biotechnology (Gewin, 2004). On the cusp of the second decade of the 21 st century it is evident that recent developments in the geotechnologies of Geographic Information Science (GIS) and remote sensing have had a substantial impact on ecological research, providing spatial data and associated information to enable the further understanding of ecological systems (Rundell et al., 2009). In a digital society there is sometimes an expectation that information is just a click away and this may apply to spatial information in the domain of ecological informatics. Indeed, it has been in the last five years that developments in and relating to the fields of GIS and remote sensing, such as those seen in internet technologies (e.g., Web 2.0; high performance communication networks; Brunt et al., 2007), sensing technology (e.g., quantum well infrared photodetectors; Krabach, 2000), data standards and interoperability (e.g., OGC® KML 2.2) and spatially explicit modeling (e.g., Osborne et al., 2007), have resulted in the revelation of previously unobservable phenomena and posing of what might be termed second generation of ecological questions. During this time we have also seen more support for the open exchange of data and software and infrastructure for location based services. This paper serves as a review of some of the recent developments in GIS and remote sensing that have been or promises to be of benefit to ecological informatics. The subjects addressed are necessarily selective and limited in scope, drawing on topics of interest to us and, we hope, to you.

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“…De fato, esse ecossistema está incluído entre os 25 "hotspots" mais importantes para a conservação da biodiversidade no mundo (MYERS et al 2000). Estimativas recentes indicam que restam apenas cerca de 40-50% da vegetação nativa do Cerrado (MACHADO et al 2004, BRASIL 2007, BRANNSTROM et al 2008. Isso pode ser explicado pelo aumento do impacto humano principalmente pela mecanização da agricultura, transformando o Cerrado em fronteira agrícola do Brasil (CAVALCANTI & JOLY 2002).…”

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Teste do efeito de borda na predação de ninhos naturais e artificiais no Cerrado

França¹,

Marini²

2009

Zoologia (Curitiba, Impr.)

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ABSTRACT. A test of the edge effect on predation of natural and artificial bird nests in the Cerrado. The Cerrado is still one of the most important ecosystems in Brazil, even though more than 50% of its area has been altered or converted to pastureland and plantations. Despite its intense degradation, few ecological processes that might affect its biodiversity have been evaluated. The goal of this study was to test the edge effect on the predation rates at natural and artificial nests, at the Ecological Station of Águas Emendadas, Federal District, Brazil. Natural nests were found and monitored every three to four days from September to December of 2004 in the interior and at the edge of the reserve.Artificial nests were placed at four distances from the edge (0, 500, 1000 and 2000 m) in three spatial replicates in September and again in December of 2004. Each nest received one Japanese Quail and one plasticine egg and was monitored every five days, for 15 days. There was no difference between the rates of predation either in the natural nests or in the artificial nests between treatments. For one bird species, Elaenia chiriquensis (Lawrence, 1865), Tyrannidae, daily survival rates in the incubation and in the hatchling period had opposite values between the edge and the interior.Marks on plasticine eggs suggest that birds are the main predators. Estimates of the abundance of two potential nest predators, Cyanocorax cristatellus (Temminck, 1823), Corvidae and Canis familiaris (Linnaeus, 1758), Canidae, revealed no relationship with distance to the edge, nor with predation rates. Brood parasitism of natural nests was similar between the interior (0%) and the edge (3.8% of the nests). The results described here do not support the edge effect hypothesis for nest predation rates on either natural or artificial nests, nor for brood parasitism rates.

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Land change in the Brazilian Savanna (Cerrado), 1986–2002: Comparative analysis and implications for land-use policy

Cited by 240 publications

References 57 publications

Understanding patterns of land-cover change in the Brazilian Cerrado from 2000 to 2015

Understanding patterns of land-cover change in the Brazilian Cerrado from 2000 to 2015

An overview of recent remote sensing and GIS based research in ecological informatics

Teste do efeito de borda na predação de ninhos naturais e artificiais no Cerrado

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