Carolina F Esteves - Academia.edu (original) (raw)
Papers by Carolina F Esteves
International Journal of Environmental Resilience Research and Science, Dec 18, 2023
Frontiers in conservation science, Jan 11, 2022
The Wild Felid Monitor, 2022
The populations of jaguars and pumas have been reduced by anthropogenic actions such as deforesta... more The populations of jaguars and pumas have been reduced by anthropogenic actions such as deforestation, fragmentation, and disruption of habitat connectivity, retaliatory hunting due to livestock predation, and depletion of their natural prey. The creation of two protected areas in 2018 in the Boqueirão da Onça region, one of the last continuums of typical Caatinga vegeta-tion, has strengthened efforts to conserve the population of these felines. However, it is not enough to curb the threat of emergent land use and occupation, such as the installation of wind farms. Here we discuss the potential impacts of installing wind farms on the populations of these two species in the Caatinga, a highly diverse semi-arid region located in Northeast Brazil.
The Wild Felid Monitor, 2022
The populations of jaguars and pumas have been reduced by anthropogenic actions such as deforesta... more The populations of jaguars and pumas have been reduced by anthropogenic actions such as deforestation, fragmentation, and disruption of habitat connectivity, retaliatory hunting due to livestock predation, and depletion of their natural prey. The creation of two protected areas in 2018 in the Boqueirão da Onça region, one of the last continuums of typical Caatinga vegeta-tion, has strengthened efforts to conserve the population of these felines. However, it is not enough to curb the threat of emergent land use and occupation, such as the installation of wind farms. Here we discuss the potential impacts of installing wind farms on the populations of these two species in the Caatinga, a highly diverse semi-arid region located in Northeast Brazil.
SSRN Electronic Journal, 2021
Exclusively Brazilian, the Caatinga is a seasonally dry tropical forest where the endangered jagu... more Exclusively Brazilian, the Caatinga is a seasonally dry tropical forest where the endangered jaguar (Panthera onca) and puma (Puma concolor) co-occur with the lowest regional Human Development Indexes. New land uses challenge traditional livelihoods and add threats to species historically poached in retaliation for livestock depredation. Chronicle biodiversity conflicts became acute after a reported increase in depredation allegedly because of those changes and conflicts among stakeholders. Using the framework of human dimensions of wildlife management, pioneer research on the vulnerabilities of rural communities to jaguar-and-puma conflicts was led in ‘Boqueirão da Onça’, within and surrounding that polygon of protected areas. The aim was to identify, describe, understand, and predict human behaviour, and link the outcomes with the IUCN natural resources governance concept. Negative attitudes arose from 72% and 35.2% participants towards the proximity of jaguar and proximity of puma, respectively. When asked about institutions working for wildlife protection, and institutions working for people facing problems caused by carnivores, 64.9% and 88.8%, respectively, were unaware of them. Regarding beliefs about co-occurrence with jaguars or pumas, 80.9% and 82.9%, respectively, mentioned more problems than benefits, with 74.5% believing in the increase of both species’ populations due to the creation of protected areas. This scenario may ease jaguar and puma to become scapegoats for human-wildlife and broader social conflicts, unless values such as justice and transparency are pursued.
Edentata: The Newsletter of the IUCN/SSC Anteater, Sloth and Armadillo Specialist Group, 2019
PloS one, 2015
How plants arrived to originally sterile oceanic islands has puzzled naturalists for centuries. D... more How plants arrived to originally sterile oceanic islands has puzzled naturalists for centuries. Dispersal syndromes (i.e., diaspore traits that promote dispersal by long-distance dispersal vectors), are generally considered to play a determinant role in assisting island colonization. However, the association between diaspore traits and the potential vectors by which diaspores are dispersed is not always obvious. Fleshy fruits, in particular, are considered to have evolved to promote the internal dispersal of seeds by frugivores (endozoochory), however some fleshy fruits can also float in saltwater, and thus be potentially transported by oceanic current (thalassochory). We performed saltwater floatation and viability experiments with fruits of the 14 European fleshy-fruited species that naturally colonized the Azores archipelago (North Atlantic Ocean). We show that only Corema album (a berry) and Juniperus oxycedrus (a fleshy cone) floated for as long as 60 days, the estimated minimu...
Natureza & Conservação, 2011
Papéis Avulsos de Zoologia, 2019
The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia sta... more The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia state, is located in the Caatinga, an exclusively Brazilian biome, but exposed to a range of anthropic impacts that threaten its species and natural resources. Few data are available for various zoological groups in Caatinga, including mammals. In order to characterize the community of mammals of this region, considering species richness, we installed 80 camera-trap stations. With a sampling effort of 10,370 camera-days we recorded 28 species (22 wild and six domestic). Opportunistically, we recorded four mammals, resulting in a total richness of 32 species, five of which are included in the global list of endangered species, and seven in the national list. The results are significant, since the richness of wild mammals of the Boqueirão da Onça (S = 26) presented a high value when compared to other Caatinga localities. During the study we found evidence of human activities threatening the c...
Journal of Environmental Law and Policy, 2021
Exclusively Brazilian, the Caatinga is a seasonally dry tropical forest where the endangered jagu... more Exclusively Brazilian, the Caatinga is a seasonally dry tropical forest where the endangered jaguar (Panthera onca) and puma (Puma concolor) co-occur with the lowest regional Human Development Indexes. New land uses challenge traditional livelihoods and add threats to species historically poached in retaliation for livestock depredation. Chronicle biodiversity conflicts became acute after a reported increase in depredation allegedly because of those changes and conflicts among stakeholders. Using the framework of human dimensions of wildlife management, pioneer research on the vulnerabilities of rural communities to jaguar-and-puma conflicts was led in 'Boqueirão da Onça', within and surrounding that polygon of protected areas. The aim was to identify, describe, understand, and predict human behaviour, and link the outcomes with the IUCN natural resources governance concept. Negative attitudes arose from 72% and 35.2% participants towards the proximity of jaguar and proximit...
Cardiology in the Young, 1999
In this report, we describe our experience with transcatheter occlusion of congenital coronary ar... more In this report, we describe our experience with transcatheter occlusion of congenital coronary arterial fistulas in adults. From November 1992 to November 1996, 5 symptomatic patients, aged from 47 to 70 years, underwent transcatheter occlusion of fistulas using a retrograde arterial approach. All had chest pain or dyspnea on exertion. Detachable balloons were used in 4 patients, and Gianturco coils in 1. Detachable balloons were implanted through a Debrun system, while the coils were implanted through a 5 French right coronary Judkins catheter. Both were passed through an 8 French guiding catheter (Amplatz II). Each patient had a single fistula. The fistulas originated from the right coronary artery in 3 patients, and from the circumflex artery in 2. They drained into the pulmonary trunk in 3 patients, into the right atrium in 1, andinto a bronchial artery in the other. All fistulas were occluded completely in the catheterization laboratory, and the procedures were uncomplicated. A...
Biological Conservation
Recent studies suggest that habitat amount is the main determinant of species richness, whereas h... more Recent studies suggest that habitat amount is the main determinant of species richness, whereas habitat fragmentation has weak and mostly positive effects. Here, we challenge these ideas using a multi-taxa database including 2230 estimates of forest-dependent species richness from 1097 sampling sites across the Brazilian Atlantic Forest biodiversity hotspot. We used a structural equation modeling approach, accounting not only for direct effects of habitat loss, but also for its indirect effects (via habitat fragmentation), on the richness of forest-dependent species. We reveal that in addition to the effects of habitat loss, habitat fragmentation has negative impacts on animal species richness at intermediate (30–60%) levels of habitat amount, and on richness of plants at high (>60%) levels of habitat amount, both of which are mediated by edge effects. Based on these results, we argue that dismissing habitat fragmentation as a powerful force driving species extinction in tropical forest landscapes is premature and unsafe
Edentata, 2018
Despite its wide distribution in South America, ranging from northern Venezuela and the Guianas s... more Despite its wide distribution in South America, ranging from northern Venezuela and the Guianas south to Paraguay and northern Argentina, the vulnerable giant armadillo (Priodontes maximus) occurs at low densities and is little studied due to its elusive habits. In Brazil species' records have been collected from the Pantanal and central Cerrado but little information is known from the eastern border of Mato Grosso do Sul. Here we report 97 records of giant armadillo in this region from areas of private lands using camera-traps and signs of presence in Cerrado and Atlantic Forest biomes.
Papéis Avulsos de Zoologia, 2018
The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia sta... more The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia state, is located in the Caatinga, an exclusively Brazilian biome, but exposed to a range of anthropic impacts that threaten its species and natural resources. Few data are available for various zoological groups in Caatinga, including mammals. In order to characterize the community of mammals of this region, considering species richness, we installed 80 camera-trap stations. With a sampling effort of 10,370 camera-days we recorded 28 species (22 wild and six domestic). Opportunistically, we recorded four mammals, resulting in a total richness of 32 species, five of which are included in the global list of endangered species, and seven in the national list. The results are significant, since the richness of wild mammals of the Boqueirão da Onça (S = 26) presented a high value when compared to other Caatinga localities. During the study we found evidence of human activities threatening the conservation of the region, such as poaching and deforestation. Therefore, there is an urgent need in the publication of the Management Plan of the recently created Boqueirão da Onça National Park, to minimize negative impacts on biodiversity and ensure the maintenance of ecological processes.
Papéis Avulsos de Zoologia, 2019
The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia sta... more The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia state, is located in the Caatinga, an exclusively Brazilian biome, but exposed to a range of anthropic impacts that threaten its species and natural resources. Few data are available for various zoological groups in Caatinga, including mammals. In order to characterize the community of mammals of this region, considering species richness, we installed 80 camera-trap stations. With a sampling effort of 10,370 camera-days we recorded 28 species (22 wild and six domestic). Opportunistically, we recorded four mammals, resulting in a total richness of 32 species, five of which are included in the global list of endangered species, and seven in the national list. The results are significant, since the richness of wild mammals of the Boqueirão da Onça (S = 26) presented a high value when compared to other Caatinga localities. During the study we found evidence of human activities threatening the conservation of the region, such as poaching and deforestation. Therefore, there is an urgent need in the publication of the Management Plan of the recently created Boqueirão da Onça National Park, to minimize negative impacts on biodiversity and ensure the maintenance of ecological processes.
International Journal of Environmental Resilience Research and Science, Dec 18, 2023
Frontiers in conservation science, Jan 11, 2022
The Wild Felid Monitor, 2022
The populations of jaguars and pumas have been reduced by anthropogenic actions such as deforesta... more The populations of jaguars and pumas have been reduced by anthropogenic actions such as deforestation, fragmentation, and disruption of habitat connectivity, retaliatory hunting due to livestock predation, and depletion of their natural prey. The creation of two protected areas in 2018 in the Boqueirão da Onça region, one of the last continuums of typical Caatinga vegeta-tion, has strengthened efforts to conserve the population of these felines. However, it is not enough to curb the threat of emergent land use and occupation, such as the installation of wind farms. Here we discuss the potential impacts of installing wind farms on the populations of these two species in the Caatinga, a highly diverse semi-arid region located in Northeast Brazil.
The Wild Felid Monitor, 2022
The populations of jaguars and pumas have been reduced by anthropogenic actions such as deforesta... more The populations of jaguars and pumas have been reduced by anthropogenic actions such as deforestation, fragmentation, and disruption of habitat connectivity, retaliatory hunting due to livestock predation, and depletion of their natural prey. The creation of two protected areas in 2018 in the Boqueirão da Onça region, one of the last continuums of typical Caatinga vegeta-tion, has strengthened efforts to conserve the population of these felines. However, it is not enough to curb the threat of emergent land use and occupation, such as the installation of wind farms. Here we discuss the potential impacts of installing wind farms on the populations of these two species in the Caatinga, a highly diverse semi-arid region located in Northeast Brazil.
SSRN Electronic Journal, 2021
Exclusively Brazilian, the Caatinga is a seasonally dry tropical forest where the endangered jagu... more Exclusively Brazilian, the Caatinga is a seasonally dry tropical forest where the endangered jaguar (Panthera onca) and puma (Puma concolor) co-occur with the lowest regional Human Development Indexes. New land uses challenge traditional livelihoods and add threats to species historically poached in retaliation for livestock depredation. Chronicle biodiversity conflicts became acute after a reported increase in depredation allegedly because of those changes and conflicts among stakeholders. Using the framework of human dimensions of wildlife management, pioneer research on the vulnerabilities of rural communities to jaguar-and-puma conflicts was led in ‘Boqueirão da Onça’, within and surrounding that polygon of protected areas. The aim was to identify, describe, understand, and predict human behaviour, and link the outcomes with the IUCN natural resources governance concept. Negative attitudes arose from 72% and 35.2% participants towards the proximity of jaguar and proximity of puma, respectively. When asked about institutions working for wildlife protection, and institutions working for people facing problems caused by carnivores, 64.9% and 88.8%, respectively, were unaware of them. Regarding beliefs about co-occurrence with jaguars or pumas, 80.9% and 82.9%, respectively, mentioned more problems than benefits, with 74.5% believing in the increase of both species’ populations due to the creation of protected areas. This scenario may ease jaguar and puma to become scapegoats for human-wildlife and broader social conflicts, unless values such as justice and transparency are pursued.
Edentata: The Newsletter of the IUCN/SSC Anteater, Sloth and Armadillo Specialist Group, 2019
PloS one, 2015
How plants arrived to originally sterile oceanic islands has puzzled naturalists for centuries. D... more How plants arrived to originally sterile oceanic islands has puzzled naturalists for centuries. Dispersal syndromes (i.e., diaspore traits that promote dispersal by long-distance dispersal vectors), are generally considered to play a determinant role in assisting island colonization. However, the association between diaspore traits and the potential vectors by which diaspores are dispersed is not always obvious. Fleshy fruits, in particular, are considered to have evolved to promote the internal dispersal of seeds by frugivores (endozoochory), however some fleshy fruits can also float in saltwater, and thus be potentially transported by oceanic current (thalassochory). We performed saltwater floatation and viability experiments with fruits of the 14 European fleshy-fruited species that naturally colonized the Azores archipelago (North Atlantic Ocean). We show that only Corema album (a berry) and Juniperus oxycedrus (a fleshy cone) floated for as long as 60 days, the estimated minimu...
Natureza & Conservação, 2011
Papéis Avulsos de Zoologia, 2019
The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia sta... more The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia state, is located in the Caatinga, an exclusively Brazilian biome, but exposed to a range of anthropic impacts that threaten its species and natural resources. Few data are available for various zoological groups in Caatinga, including mammals. In order to characterize the community of mammals of this region, considering species richness, we installed 80 camera-trap stations. With a sampling effort of 10,370 camera-days we recorded 28 species (22 wild and six domestic). Opportunistically, we recorded four mammals, resulting in a total richness of 32 species, five of which are included in the global list of endangered species, and seven in the national list. The results are significant, since the richness of wild mammals of the Boqueirão da Onça (S = 26) presented a high value when compared to other Caatinga localities. During the study we found evidence of human activities threatening the c...
Journal of Environmental Law and Policy, 2021
Exclusively Brazilian, the Caatinga is a seasonally dry tropical forest where the endangered jagu... more Exclusively Brazilian, the Caatinga is a seasonally dry tropical forest where the endangered jaguar (Panthera onca) and puma (Puma concolor) co-occur with the lowest regional Human Development Indexes. New land uses challenge traditional livelihoods and add threats to species historically poached in retaliation for livestock depredation. Chronicle biodiversity conflicts became acute after a reported increase in depredation allegedly because of those changes and conflicts among stakeholders. Using the framework of human dimensions of wildlife management, pioneer research on the vulnerabilities of rural communities to jaguar-and-puma conflicts was led in 'Boqueirão da Onça', within and surrounding that polygon of protected areas. The aim was to identify, describe, understand, and predict human behaviour, and link the outcomes with the IUCN natural resources governance concept. Negative attitudes arose from 72% and 35.2% participants towards the proximity of jaguar and proximit...
Cardiology in the Young, 1999
In this report, we describe our experience with transcatheter occlusion of congenital coronary ar... more In this report, we describe our experience with transcatheter occlusion of congenital coronary arterial fistulas in adults. From November 1992 to November 1996, 5 symptomatic patients, aged from 47 to 70 years, underwent transcatheter occlusion of fistulas using a retrograde arterial approach. All had chest pain or dyspnea on exertion. Detachable balloons were used in 4 patients, and Gianturco coils in 1. Detachable balloons were implanted through a Debrun system, while the coils were implanted through a 5 French right coronary Judkins catheter. Both were passed through an 8 French guiding catheter (Amplatz II). Each patient had a single fistula. The fistulas originated from the right coronary artery in 3 patients, and from the circumflex artery in 2. They drained into the pulmonary trunk in 3 patients, into the right atrium in 1, andinto a bronchial artery in the other. All fistulas were occluded completely in the catheterization laboratory, and the procedures were uncomplicated. A...
Biological Conservation
Recent studies suggest that habitat amount is the main determinant of species richness, whereas h... more Recent studies suggest that habitat amount is the main determinant of species richness, whereas habitat fragmentation has weak and mostly positive effects. Here, we challenge these ideas using a multi-taxa database including 2230 estimates of forest-dependent species richness from 1097 sampling sites across the Brazilian Atlantic Forest biodiversity hotspot. We used a structural equation modeling approach, accounting not only for direct effects of habitat loss, but also for its indirect effects (via habitat fragmentation), on the richness of forest-dependent species. We reveal that in addition to the effects of habitat loss, habitat fragmentation has negative impacts on animal species richness at intermediate (30–60%) levels of habitat amount, and on richness of plants at high (>60%) levels of habitat amount, both of which are mediated by edge effects. Based on these results, we argue that dismissing habitat fragmentation as a powerful force driving species extinction in tropical forest landscapes is premature and unsafe
Edentata, 2018
Despite its wide distribution in South America, ranging from northern Venezuela and the Guianas s... more Despite its wide distribution in South America, ranging from northern Venezuela and the Guianas south to Paraguay and northern Argentina, the vulnerable giant armadillo (Priodontes maximus) occurs at low densities and is little studied due to its elusive habits. In Brazil species' records have been collected from the Pantanal and central Cerrado but little information is known from the eastern border of Mato Grosso do Sul. Here we report 97 records of giant armadillo in this region from areas of private lands using camera-traps and signs of presence in Cerrado and Atlantic Forest biomes.
Papéis Avulsos de Zoologia, 2018
The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia sta... more The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia state, is located in the Caatinga, an exclusively Brazilian biome, but exposed to a range of anthropic impacts that threaten its species and natural resources. Few data are available for various zoological groups in Caatinga, including mammals. In order to characterize the community of mammals of this region, considering species richness, we installed 80 camera-trap stations. With a sampling effort of 10,370 camera-days we recorded 28 species (22 wild and six domestic). Opportunistically, we recorded four mammals, resulting in a total richness of 32 species, five of which are included in the global list of endangered species, and seven in the national list. The results are significant, since the richness of wild mammals of the Boqueirão da Onça (S = 26) presented a high value when compared to other Caatinga localities. During the study we found evidence of human activities threatening the conservation of the region, such as poaching and deforestation. Therefore, there is an urgent need in the publication of the Management Plan of the recently created Boqueirão da Onça National Park, to minimize negative impacts on biodiversity and ensure the maintenance of ecological processes.
Papéis Avulsos de Zoologia, 2019
The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia sta... more The mosaic of protected areas of Boqueirão da Onça (8.636 km²), created in the north of Bahia state, is located in the Caatinga, an exclusively Brazilian biome, but exposed to a range of anthropic impacts that threaten its species and natural resources. Few data are available for various zoological groups in Caatinga, including mammals. In order to characterize the community of mammals of this region, considering species richness, we installed 80 camera-trap stations. With a sampling effort of 10,370 camera-days we recorded 28 species (22 wild and six domestic). Opportunistically, we recorded four mammals, resulting in a total richness of 32 species, five of which are included in the global list of endangered species, and seven in the national list. The results are significant, since the richness of wild mammals of the Boqueirão da Onça (S = 26) presented a high value when compared to other Caatinga localities. During the study we found evidence of human activities threatening the conservation of the region, such as poaching and deforestation. Therefore, there is an urgent need in the publication of the Management Plan of the recently created Boqueirão da Onça National Park, to minimize negative impacts on biodiversity and ensure the maintenance of ecological processes.