The Pantanal is the world’s largest and most biodiverse continental sheet-flow wetland. Recently,... more The Pantanal is the world’s largest and most biodiverse continental sheet-flow wetland. Recently, vast tracts of the Pantanal have succumbed to the occurrence of fires, raising serious concerns over the future integrity of the biodiversity and ecosystem services of this biome, including revenues from ecotourism. These wildfires degrade the baseline of natural ecosystems and the ecotourism economy across the region. Local residents (“Pantaneiros”) anecdotally state that extensive cattle herbivory can solve the contemporary flammability problem of the Pantanal by controlling vegetation biomass, thereby preventing or reducing both fuel loads and fires across the region. Here, we examine the covariation between the presence and density of cattle and the incidence of fires across the Brazilian Pantanal. Variables assessed included bovine cattle density, SPI (Standardized Precipitation Index), GPP (Gross Primary Productivity)/biomass estimate, and fire foci along a 19-year time series (20...
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019
RESUMO Leopardus pardalis é uma das espécies de felinos neotropicais mais estudadas em seus aspec... more RESUMO Leopardus pardalis é uma das espécies de felinos neotropicais mais estudadas em seus aspectos ecológicos, porém informações de questões morfofisiológicas do trato digestório não são encontradas na literatura. Visando contribuir com tais informações, o objetivo deste artigo foi caracterizar a morfologia do estômago dessa espécie. Nesta pesquisa, foram utilizados cinco exemplares adultos, coletados após óbito por atropelamento ou doados pelo IBAMA ao Laboratório de Zoologia e Morfologia Animal da Universidade do Estado de Mato Grosso - Alta Floresta. Os animais foram fixados com solução aquosa de formaldeído a 10%, dissecados por meio de técnicas anatômicas. Além dos estudos anatômicos, também foram coletados tecidos para microscopia. As análises macroscópicas revelaram que o estômago era do tipo unicavitário, com presença de pequena e grande curvatura, localizado no antímero esquerdo e constituído pelas regiões características do órgão. Em seus aspectos microscópicos, mostrou-...
In environmental research, remote sensing techniques are mostly based on orbital data, which are ... more In environmental research, remote sensing techniques are mostly based on orbital data, which are characterized by limited acquisition and often poor spectral and spatial resolutions in relation to suborbital sensors. This reflects on carbon patterns, where orbital remote sensing bears devoted sensor systems for CO2 monitoring, even though carbon observations are performed with natural resources systems, such as Landsat, supported by spectral models such as CO2Flux adapted to multispectral imagery. Based on the considerations above, we have compared the CO2Flux model by using four different imagery systems (Landsat 8, PlanetScope, Sentinel-2, and AisaFenix) in the northern part of the state of Mato Grosso, southern Brazilian Amazonia. The study area covers three different land uses, which are primary tropical forest, bare soil, and pasture. After the atmospheric correction and radiometric calibration, the scenes were resampled to 30 m of spatial resolution, seeking for a parametrized...
Ferrante, Lucas; Luciana Leite, Carlos Antonio da Silva Junior, Mendelson Lima, Marcondes Geraldo... more Ferrante, Lucas; Luciana Leite, Carlos Antonio da Silva Junior, Mendelson Lima, Marcondes Geraldo Coelho Junior & P.M. Fearnside. 2020. Brazil's biomes threatened: President Bolsonaro lied to the world. Nature Research Ecology and Evolution Community, 22 October 2020. https://natureecoevocommunity.nature.com/posts/brazil-s-biomes-threatened-president-bolsonaro-lied-to-the-world
The Amazon Basin is undergoing extensive environmental degradation as a result of deforestation a... more The Amazon Basin is undergoing extensive environmental degradation as a result of deforestation and the rising occurrence of fires. The degradation caused by fires is exacerbated by the occurrence of anomalously dry periods in the Amazon Basin. The objectives of this study were: (i) to quantify the extent of areas that burned between 2001 and 2019 and relate them to extreme drought events in a 20-year time series; (ii) to identify the proportion of countries comprising the Amazon Basin in which environmental degradation was strongly observed, relating the spatial patterns of fires; and (iii) examine the Amazon Basin carbon balance following the occurrence of fires. To this end, the following variables were evaluated by remote sensing between 2001 and 2019: gross primary production, standardized precipitation index, burned areas, fire foci, and carbon emissions. During the examined period, fires affected 23.78% of the total Amazon Basin. Brazil had the largest affected area (220,087 ...
This paper evaluates compliance with environmental laws in the municipality of Sorriso and the im... more This paper evaluates compliance with environmental laws in the municipality of Sorriso and the impact of changing legislation on vegetation. To verify the size of the properties, the areas designated as legal reserves (LRs), permanent protection areas (APPs), and springs were studied. Details of compliance with the New Forest Code (NFC) were drawn from the Rural Environmental Register (CAR) database. The database provided by PRODES/CERRADO was used to gather data to monitor deforested areas. SojaMaps data were used to verify the areas used for soybean cultivation followed by the Perpendicular Crop Enhancement Index. The data were plotted and superimposed on the deforestation data provided by PRODES/CERRADO. The areas were calculated using QGiS software version 2.18.22. The results showed that only 20.04% of the original Cerrado vegetation cover remains in the municipality. The results also revealed environmental LR, APP, and spring deficits of 92,772.32, 1,656.28, and 322.86 ha, respectively. Measures such as the CAR in the New Forest Code are ineffective for inhibiting illegal deforestation, and new legislation authorized the loss of 75.22% of the APP areas due for recovery. The proposed changes to eliminate LRs will allow the suppression of 91,000 ha of vegetation in Sorriso. Expanding the Amazon Soy Moratorium to the Cerrado could bring immediate benefits to the maintenance of the last continuous forested areas in this biome.
Hydrolycus armatus (cachorra) e um Teleostei da Familia Cynodontidae que forma um grupo distinto ... more Hydrolycus armatus (cachorra) e um Teleostei da Familia Cynodontidae que forma um grupo distinto de Characiformes Neotropicais. Esta especie e predadora, pelagica, de agua doce e de habito alimentar carnivoro e ictiofago. Estudos biologicos em peixes sao importantes para a pesca ja que sao utilizados como parâmetros para manter a exploracao em niveis sustentaveis. Este trabalho teve como objetivo descrever a anatomia do estomago de H. armatus, afim de gerar informacoes basicas deste orgao deste vertebrado. Foram utilizados dez exemplares de H. armatus, oriundos do rio Teles Pires, municipio de Carlinda-MT, sendo estes dissecados e analisados. O estomago de formato sacular apresentava regioes cardica, pilorica e fundica, sendo esta ultima maior que as demais. As caracteristicas anatomicas apresentadas pelo estomago de H. armatus confirmaram as relacoes existentes entre a anatomia destes orgaos e seus habitos alimentares sendo estas, portanto, caracteristicas proprias de especies pre...
The Pantanal is the world’s largest and most biodiverse continental sheet-flow wetland. Recently,... more The Pantanal is the world’s largest and most biodiverse continental sheet-flow wetland. Recently, vast tracts of the Pantanal have succumbed to the occurrence of fires, raising serious concerns over the future integrity of the biodiversity and ecosystem services of this biome, including revenues from ecotourism. These wildfires degrade the baseline of natural ecosystems and the ecotourism economy across the region. Local residents (“Pantaneiros”) anecdotally state that extensive cattle herbivory can solve the contemporary flammability problem of the Pantanal by controlling vegetation biomass, thereby preventing or reducing both fuel loads and fires across the region. Here, we examine the covariation between the presence and density of cattle and the incidence of fires across the Brazilian Pantanal. Variables assessed included bovine cattle density, SPI (Standardized Precipitation Index), GPP (Gross Primary Productivity)/biomass estimate, and fire foci along a 19-year time series (20...
Arquivo Brasileiro de Medicina Veterinária e Zootecnia, 2019
RESUMO Leopardus pardalis é uma das espécies de felinos neotropicais mais estudadas em seus aspec... more RESUMO Leopardus pardalis é uma das espécies de felinos neotropicais mais estudadas em seus aspectos ecológicos, porém informações de questões morfofisiológicas do trato digestório não são encontradas na literatura. Visando contribuir com tais informações, o objetivo deste artigo foi caracterizar a morfologia do estômago dessa espécie. Nesta pesquisa, foram utilizados cinco exemplares adultos, coletados após óbito por atropelamento ou doados pelo IBAMA ao Laboratório de Zoologia e Morfologia Animal da Universidade do Estado de Mato Grosso - Alta Floresta. Os animais foram fixados com solução aquosa de formaldeído a 10%, dissecados por meio de técnicas anatômicas. Além dos estudos anatômicos, também foram coletados tecidos para microscopia. As análises macroscópicas revelaram que o estômago era do tipo unicavitário, com presença de pequena e grande curvatura, localizado no antímero esquerdo e constituído pelas regiões características do órgão. Em seus aspectos microscópicos, mostrou-...
In environmental research, remote sensing techniques are mostly based on orbital data, which are ... more In environmental research, remote sensing techniques are mostly based on orbital data, which are characterized by limited acquisition and often poor spectral and spatial resolutions in relation to suborbital sensors. This reflects on carbon patterns, where orbital remote sensing bears devoted sensor systems for CO2 monitoring, even though carbon observations are performed with natural resources systems, such as Landsat, supported by spectral models such as CO2Flux adapted to multispectral imagery. Based on the considerations above, we have compared the CO2Flux model by using four different imagery systems (Landsat 8, PlanetScope, Sentinel-2, and AisaFenix) in the northern part of the state of Mato Grosso, southern Brazilian Amazonia. The study area covers three different land uses, which are primary tropical forest, bare soil, and pasture. After the atmospheric correction and radiometric calibration, the scenes were resampled to 30 m of spatial resolution, seeking for a parametrized...
Ferrante, Lucas; Luciana Leite, Carlos Antonio da Silva Junior, Mendelson Lima, Marcondes Geraldo... more Ferrante, Lucas; Luciana Leite, Carlos Antonio da Silva Junior, Mendelson Lima, Marcondes Geraldo Coelho Junior & P.M. Fearnside. 2020. Brazil's biomes threatened: President Bolsonaro lied to the world. Nature Research Ecology and Evolution Community, 22 October 2020. https://natureecoevocommunity.nature.com/posts/brazil-s-biomes-threatened-president-bolsonaro-lied-to-the-world
The Amazon Basin is undergoing extensive environmental degradation as a result of deforestation a... more The Amazon Basin is undergoing extensive environmental degradation as a result of deforestation and the rising occurrence of fires. The degradation caused by fires is exacerbated by the occurrence of anomalously dry periods in the Amazon Basin. The objectives of this study were: (i) to quantify the extent of areas that burned between 2001 and 2019 and relate them to extreme drought events in a 20-year time series; (ii) to identify the proportion of countries comprising the Amazon Basin in which environmental degradation was strongly observed, relating the spatial patterns of fires; and (iii) examine the Amazon Basin carbon balance following the occurrence of fires. To this end, the following variables were evaluated by remote sensing between 2001 and 2019: gross primary production, standardized precipitation index, burned areas, fire foci, and carbon emissions. During the examined period, fires affected 23.78% of the total Amazon Basin. Brazil had the largest affected area (220,087 ...
This paper evaluates compliance with environmental laws in the municipality of Sorriso and the im... more This paper evaluates compliance with environmental laws in the municipality of Sorriso and the impact of changing legislation on vegetation. To verify the size of the properties, the areas designated as legal reserves (LRs), permanent protection areas (APPs), and springs were studied. Details of compliance with the New Forest Code (NFC) were drawn from the Rural Environmental Register (CAR) database. The database provided by PRODES/CERRADO was used to gather data to monitor deforested areas. SojaMaps data were used to verify the areas used for soybean cultivation followed by the Perpendicular Crop Enhancement Index. The data were plotted and superimposed on the deforestation data provided by PRODES/CERRADO. The areas were calculated using QGiS software version 2.18.22. The results showed that only 20.04% of the original Cerrado vegetation cover remains in the municipality. The results also revealed environmental LR, APP, and spring deficits of 92,772.32, 1,656.28, and 322.86 ha, respectively. Measures such as the CAR in the New Forest Code are ineffective for inhibiting illegal deforestation, and new legislation authorized the loss of 75.22% of the APP areas due for recovery. The proposed changes to eliminate LRs will allow the suppression of 91,000 ha of vegetation in Sorriso. Expanding the Amazon Soy Moratorium to the Cerrado could bring immediate benefits to the maintenance of the last continuous forested areas in this biome.
Hydrolycus armatus (cachorra) e um Teleostei da Familia Cynodontidae que forma um grupo distinto ... more Hydrolycus armatus (cachorra) e um Teleostei da Familia Cynodontidae que forma um grupo distinto de Characiformes Neotropicais. Esta especie e predadora, pelagica, de agua doce e de habito alimentar carnivoro e ictiofago. Estudos biologicos em peixes sao importantes para a pesca ja que sao utilizados como parâmetros para manter a exploracao em niveis sustentaveis. Este trabalho teve como objetivo descrever a anatomia do estomago de H. armatus, afim de gerar informacoes basicas deste orgao deste vertebrado. Foram utilizados dez exemplares de H. armatus, oriundos do rio Teles Pires, municipio de Carlinda-MT, sendo estes dissecados e analisados. O estomago de formato sacular apresentava regioes cardica, pilorica e fundica, sendo esta ultima maior que as demais. As caracteristicas anatomicas apresentadas pelo estomago de H. armatus confirmaram as relacoes existentes entre a anatomia destes orgaos e seus habitos alimentares sendo estas, portanto, caracteristicas proprias de especies pre...
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