Carlos Ernesto Gonçalves Reynaud Schaefer
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View article: Proximal surface pedogeophysical characterization in Maritime Antarctica: assessing pedogeomorphological, periglacial, and landform influences
Proximal surface pedogeophysical characterization in Maritime Antarctica: assessing pedogeomorphological, periglacial, and landform influences Open
Maritime Antarctica (M.A.) contains the most extensive and diverse lithological exposure compared to the entire continent. This lithological substrate reveals a rich history encompassing lithological, pedogeomorphological, and glaciologica…
View article: Diversity and Ecology of Myxomycetes (Amoebozoa) Along a Vegetational Gradient in the Peruvian Andes
Diversity and Ecology of Myxomycetes (Amoebozoa) Along a Vegetational Gradient in the Peruvian Andes Open
The study investigated the diversity and ecology of Myxomycetes (Amoebozoa) along a vegetation gradient in the Cuzco department, Peru, spanning altitudes from 2500 to 4700 m. Field collections were carried out at six sites distributed acro…
View article: Measuring the Impact of Climate Assemblies Through Participant Surveys
Measuring the Impact of Climate Assemblies Through Participant Surveys Open
Climate assemblies provide a platform for citizens to deliberate and contribute to solutions for pressing environmental issues. Understanding their impact on participants is essential for evaluating their effectiveness and shaping future a…
View article: Exploratory interaction of Chionis alba (snowy sheathbill) with the amatoxin-producing mushroom Galerina marginata in Antarctica
Exploratory interaction of Chionis alba (snowy sheathbill) with the amatoxin-producing mushroom Galerina marginata in Antarctica Open
We report a rare behavioral observation involving an individual of Chionis alba (snowy sheathbill) attempting to consume a basidiome of the toxic mushroom Galerina marginata on Livingston Island, Antarctica. The bird briefly picked up the …
View article: Diversity and Ecology of Myxomycetes (Amoebozoa) Along a Vegetacional Gradient in the Peruvian Andes
Diversity and Ecology of Myxomycetes (Amoebozoa) Along a Vegetacional Gradient in the Peruvian Andes Open
The study investigated the diversity and ecology of Myxomycetes (Amoebozoa) along a vegetation gradient in the Cuzco department, Peru, spanning altitudes from 2,500 to 4,700 meters. Field collections were carried out at six sites distribut…
View article: Morphological Plasticity and Abundance Patterns of Arrhenia antarctica in the South Shetland Islands: Implications for Fungal Ecology in a Warming Antarctica
Morphological Plasticity and Abundance Patterns of Arrhenia antarctica in the South Shetland Islands: Implications for Fungal Ecology in a Warming Antarctica Open
The formation and development of mushrooms depend on suitable conditions of humidity, substrate, and temperature. These environmental factors are directly influenced by ongoing climate change, which may alter fungal growth patterns, distri…
View article: Detailed geomorphological cartography of the Fildes Peninsula, South Shetland Islands, Antarctica
Detailed geomorphological cartography of the Fildes Peninsula, South Shetland Islands, Antarctica Open
On the Antarctic continent, the transition from a warm, ice-free early Eocene to glacial conditions marks the onset of Cenozoic glaciation. The Fildes Peninsula (FP), King George Island, has geological and climatic characteristics that res…
View article: The bones of Livingston Island—history of plant succession in Antarctica
The bones of Livingston Island—history of plant succession in Antarctica Open
The bones found in the beaches of Byers Peninsula, Livingston Island - Antarctica are testimonies of almost two hundred years ago when the area was full of seals and whales hunters. The remaining´s of that period are composed of complete s…
View article: <scp>LandFrag</scp>: A Dataset to Investigate the Effects of Forest Loss and Fragmentation on Biodiversity
<span>LandFrag</span>: A Dataset to Investigate the Effects of Forest Loss and Fragmentation on Biodiversity Open
Motivation The accelerated and widespread conversion of once continuous ecosystems into fragmented landscapes has driven ecological research to understand the response of biodiversity to local (fragment size) and landscape (forest cover an…
View article: Temporal trend and dynamics of the active layer at different monitoring points in Maritime Antarctica and Peninsula
Temporal trend and dynamics of the active layer at different monitoring points in Maritime Antarctica and Peninsula Open
Antarctica provides a unique opportunity to understand changes in permafrost and global climate. Four monitoring sites were selected between maritime Antarctica and the Peninsula to study the temporal trend, air and soil temperature, and d…
View article: Soils and carbon distribution at Byers Peninsula - Maritime Antarctica, based on the climate change scenario
Soils and carbon distribution at Byers Peninsula - Maritime Antarctica, based on the climate change scenario Open
Maritime Antarctica has a milder climate than the Antarctic continent and is naturally more sensitive to rising global temperature. Therefore, it is necessary to understand the soils, including those with permafrost, as well as the relief …
View article: Cold desert soil formation in Heritage Range, Ellsworth Mountains, West Antarctica
Cold desert soil formation in Heritage Range, Ellsworth Mountains, West Antarctica Open
The Ellsworth Mountains represent a significant gap in pedological studies in Antarctica, particularly concerning soil formation at the local level. This study focused on 22 soil profiles from the southern portion of the Ellsworth Mountain…
View article: Integrating proximal geophysical sensing and machine learning for digital soil mapping: Spatial prediction and model evaluation using a small dataset
Integrating proximal geophysical sensing and machine learning for digital soil mapping: Spatial prediction and model evaluation using a small dataset Open
Geophysical methods support soil security by providing non-invasive tools to assess soil properties, monitor degradation, and guide sustainable management strategies. However, studies focusing the spatial prediction of geophysical data rem…
View article: Quartzitic Caves with guano at the Serra do Ibitipoca State Park (MG) - Brazil: key nutrient hotspots in the soils and adjacent forests
Quartzitic Caves with guano at the Serra do Ibitipoca State Park (MG) - Brazil: key nutrient hotspots in the soils and adjacent forests Open
Little is known about the role of guano from quartzite caves in forming biodiverse plant communities in the surrounding areas due to direct or indirect nutrient and energy inputs. This study investigates four caves in the Quartzite Endokar…
View article: Expanding geographic distribution knowledge of Galerina marginata (Batsch) Kühner (Agaricales, Hymenogastraceae) with a novel Antarctic record
Expanding geographic distribution knowledge of Galerina marginata (Batsch) Kühner (Agaricales, Hymenogastraceae) with a novel Antarctic record Open
The investigation of Agaricales diversity in the Antarctica is limited, with only seven genera reported for the region. Galerina stands out as the genus with the highest species diversity, including 12 species in Antarctica. This research …
View article: Application of machine learning to proximal gamma-ray and magnetic susceptibility surveys in the Maritime Antarctic: assessing the influence of periglacial processes and landforms
Application of machine learning to proximal gamma-ray and magnetic susceptibility surveys in the Maritime Antarctic: assessing the influence of periglacial processes and landforms Open
Maritime Antarctica (M.A.) contains the most extensive and diverse lithological exposure compared to the entire continent. This lithological substrate reveals a rich history encompassing lithological, pedogeomorphological, and glaciologica…
View article: Ground temperature trend and active layer dynamics in the Fildes Peninsula, King George Island - Marine Antarctica
Ground temperature trend and active layer dynamics in the Fildes Peninsula, King George Island - Marine Antarctica Open
Ground temperature's sensitivity to climate change has garnered attention. This study aimed to monitor and analyze temporal trends and estimate Active Layer Thickness from a monitoring point at Fildes Peninsula, King George Island, in Anta…
View article: Soil carbon prediction in Marajó island wetlands
Soil carbon prediction in Marajó island wetlands Open
Soil is an important carbon repository in terrestrial ecosystems, serving a fundamental role in the intricate cycling of this elemental component. Wetlands are crucial components of the global carbon cycle, playing a significant role in ca…
View article: Pedodiversity and ornithogenesis of a tiny Antarctic Island (Half Moon): landform-geology-vegetation interrelationships
Pedodiversity and ornithogenesis of a tiny Antarctic Island (Half Moon): landform-geology-vegetation interrelationships Open
The harsh Antarctic climate limits soil formation and the development of terrestrial ecosystems, with most biological activity concentrated in the short summer season in ice-free areas. There, penguins play a crucial role in nutrient trans…
View article: Soil attributes and leaf litter composition in forest communities of the Brazilian Pantanal
Soil attributes and leaf litter composition in forest communities of the Brazilian Pantanal Open
Leaf litter is an important component related to nutrient cycling and conservation of soil biodiversity. In this context, the objective of our study was to investigate the relationship between soil and leaf litter in different forest commu…
View article: Resistance to adverse conditions and characterization of Cladosporium species from marine and terrestrial Antarctic samples
Resistance to adverse conditions and characterization of Cladosporium species from marine and terrestrial Antarctic samples Open
Microbial adaptations to extreme environments can lead to biotechnological applications. This study aimed to evaluate the resistance of Antarctic Cladosporium to adverse conditions (temperature, salinity, UV radiation, and nutrients) and r…
View article: Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation
Soilscapes from Byers Peninsula, Maritime Antarctic: landform-lithology controls in soil formation Open
The Byers Peninsula, the largest ice-free area in Maritime Antarctica, is vital for studying landscape-scale natural processes due to its diverse periglacial landforms. This study aim to characterize the soils and environments of its south…
View article: TerraSAR-X SAR data for classification of ice-free areas and glacier facies on Fildes Peninsula, King George Island, Antarctica
TerraSAR-X SAR data for classification of ice-free areas and glacier facies on Fildes Peninsula, King George Island, Antarctica Open
The region of the Maritime Antarctic suffers significantly from climate change, resulting in regional warming and consequently affecting coverage. This study characterized three surface zones of Collins Glacier and three other zones in ice…
View article: Anthropogenic effect on the pedochemical variability of potentially toxic elements at the vicinity of an Antarctic research station
Anthropogenic effect on the pedochemical variability of potentially toxic elements at the vicinity of an Antarctic research station Open
Antarctica represents an isolated continent devoted to conservation and scientific research, although it accumulates records of increasing anthropic contamination. The historical continued use of fuel for power generation in Antarctic sett…
View article: Soil chemistry dataset from the work "Modelling and prediction of major soil chemical properties with Random Forest: machine learning as tool to understand soil-environment relationships in Antarctica"
Soil chemistry dataset from the work "Modelling and prediction of major soil chemical properties with Random Forest: machine learning as tool to understand soil-environment relationships in Antarctica" Open
Bases sum, H+Al (potential acidity), pH, phosphorous, remaining P (P-rem), sodium and total organic carbon distribution in Antarctic soils modeled and predicted through Machine Learning approaches, legacy soil data and environmental covari…
View article: Soil chemistry dataset from the work "Modelling and prediction of major soil chemical properties with Random Forest: machine learning as tool to understand soil-environment relationships in Antarctica"
Soil chemistry dataset from the work "Modelling and prediction of major soil chemical properties with Random Forest: machine learning as tool to understand soil-environment relationships in Antarctica" Open
Bases sum, H+Al (potential acidity), pH, phosphorous, remaining P (P-rem), sodium and total organic carbon distribution in Antarctic soils modeled and predicted through Machine Learning approaches, legacy soil data and environmental covari…
View article: Soil texture dataset from the publication: "Machine learning applied for Antarctic soil mapping: Spatial prediction of soil texture for Maritime Antarctica and Northern Antarctic Peninsula'
Soil texture dataset from the publication: "Machine learning applied for Antarctic soil mapping: Spatial prediction of soil texture for Maritime Antarctica and Northern Antarctic Peninsula' Open
Clay, silt and sand distribution in Antarctic soils modeled and predicted through Machine Learning approaches, legacy soil data and environmental covariates. The coefficient of variation and quantile data represent the spatial uncertainty …
View article: Soil texture dataset from the publication: "Machine learning applied for Antarctic soil mapping: Spatial prediction of soil texture for Maritime Antarctica and Northern Antarctic Peninsula'
Soil texture dataset from the publication: "Machine learning applied for Antarctic soil mapping: Spatial prediction of soil texture for Maritime Antarctica and Northern Antarctic Peninsula' Open
Clay, silt and sand distribution in Antarctic soils modeled and predicted through Machine Learning approaches, legacy soil data and environmental covariates. The coefficient of variation and quantile data represent the spatial uncertainty …