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Soledad Cuezva - One of the best experts on this subject based on the ideXlab platform.
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Biologically mediated release of endogenous N2O and NO2 gases in a hydrothermal, hypoxic Subterranean Environment.
The Science of the total environment, 2020Co-Authors: Tamara Martin-pozas, Soledad Cuezva, Sergio Sanchez-moral, Valme Jurado, Cesáreo Sáiz-jiménez, Raúl Pérez-lópez, Raúl Carrey, Neus Otero, Anette Giesemann, Reinhard WellAbstract:The migration of geogenic gases in continental areas with geothermal activity and active faults is an important process releasing greenhouse gases (GHG) to the lower troposphere. In this respect, caves in hypogenic Environments are natural laboratories to study the compositional evolution of deep-endogenous fluids through the Critical Zone. Vapour Cave (Alhama, Murcia, Spain) is a hypogenic cave formed by the upwelling of hydrothermal CO2-rich fluids. Anomalous concentrations of N2O and NO2 were registered in the cave's Subterranean atmosphere, averaging ten and five times the typical atmospheric backgrounds, respectively. We characterised the thermal conditions, gaseous compositions, sediments, and microbial communities at different depths in the cave. We did so to understand the relation between N-cycling microbial groups and the production and transformation of nitrogenous gases, as well as their coupled evolution with CO2 and CH4 during their migration through the Critical Zone to the lower troposphere. Our results showed an evident vertical stratification of selected microbial groups (Archaea and Bacteria) depending on the Environmental parameters, including O2, temperature, and GHG concentration. Both the N2O isotope ratios and the predicted ecological functions of bacterial and archaeal communities suggest that N2O and NO2 emissions mainly depend on the nitrification by ammonia-oxidising microorganisms. Denitrification and abiotic reactions of the reactive intermediates NH2OH, NO, and NO2- are also plausible according to the results of the phylogenetic analyses of the microbial communities. Nitrite-dependent anaerobic methane oxidation by denitrifying methanotrophs of the NC10 phylum was also identified as a post-genetic process during migration of this gas to the surface. To the best of our knowledge, our report provides, for the first time, evidence of a niche densely populated by Micrarchaeia, which represents more than 50% of the total archaeal abundance. This raises many questions on the metabolic behaviour of this and other archaeal phyla.
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High radon levels in Subterranean Environments: monitoring and technical criteria to ensure human safety (case of Castañar cave, Spain).
Journal of environmental radioactivity, 2015Co-Authors: Miriam Alvarez-gallego, Angel Fernandez-cortes, Soledad Cuezva, E. Garcia-anton, Sergio Sanchez-moralAbstract:Abstract Castanar cave contains the highest radon gas ( 222 Rn) concentration in Spain with an annual average of 31.9 kBq m − 3 . Seasonal variations with summer minimums and maximum values in fall were recorded. The reduction of air-filled porosity of soil and rock by condensation or rainfalls hides the radon exchange by gas diffusion, determining this seasonal stair-step pattern of the radon activity concentration in underground air. The effective total dose and the maximum hours permitted have been evaluated for the guides and public safety with a highly detailed radon measurement along 2011 and 2012. A network of 12 passive detectors (kodalphas) has been installed, as well as, two radon continuous monitoring in the most interesting geological sites of the Subterranean Environment. A follow up of the recommended time (max. 50 min) inside the underground Environment has been analysed since the reopen to public visitors for not surpassing the legal maximum effective dose for tourists and guides. Results shown that public visitors would receive in fall a 12.1% of the total effective dose permitted per visit, whereas in summer it is reduced to 8.6%, while the cave guide received a total effective dose of 6.41 mSv in four months. The spatial radon maps allow defining the most suitable touristic paths according to the radon concentration distribution and therefore, appropriate fall and summer touristic paths are recommended.
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Biogenic Mn oxide minerals coating in a subsurface granite Environment
Chemical Geology, 2012Co-Authors: Ana Z. Miller, Amélia Dionísio, M. A. Sequeira Braga, Mariona Hernández-mariné, Maria José Afonso, Vânia S. F. Muralha, L.k. Herrera, Jörg Raabe, Angel Fernandez-cortes, Soledad CuezvaAbstract:Abstract This paper reports the results of a study of biogenic Mn oxide minerals coating in a subsurface granite Environment. This Subterranean Environment corresponds to galleries of a 16th century spring water tunnel dug throughout the granite bedrock located in Porto city (NW Portugal). Several techniques (XRD, FTIR, Raman, ICP-MS, TEM-EDS, FESEM-EDS, STEM-EDS and STXM-NEXAFS) were used to assess the mechanisms involved in the formation of manganese oxides, specifically birnessite and todorokite. These manganese oxides presented peculiar shapes, nano-dimensions, low degree of crystallinity, and high levels of some trace elements such as P, Ca, C, Al, Si, Ba and Zn. They were associated with large amounts of extracellular polymeric substances exuded by filamentous bacterial communities, which serve as nuclei for preferential precipitation of manganese oxides on the extracellular sheaths. Scientific assessment revealed that biological activity played a major role in the development of these manganese oxides.
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Biogenic Mn oxide minerals coating in a subsurface granite Environment
Chemical Geology, 2012Co-Authors: Ana Z. Miller, Amélia Dionísio, Mariona Hernández-mariné, Maria José Afonso, Vânia S. F. Muralha, L.k. Herrera, Jörg Raabe, Angel Fernandez-cortes, M.a. Sequeira Braga, Soledad CuezvaAbstract:Miller, A. Z. et al.--This paper reports the results of a study of biogenic Mn oxide minerals coating in a subsurface granite Environment.This Subterranean Environment corresponds to galleries of a 16th century spring water tunnel dug throughout the granite bedrock located in Porto city (NW Portugal). Several techniques (XRD, FTIR, Raman, ICP-MS, TEM-EDS, FESEM-EDS, STEM-EDS and STXM-NEXAFS) were used to assess the mechanisms involved in the formation of manganese oxides, specifically birnessite and todorokite. These manganese oxides presented peculiar shapes, nano-dimensions, low degree of crystallinity, and high levels of some trace elements such as P, Ca, C, Al, Si, Ba and Zn. They were associated with large amounts of extracellular polymeric substances exuded by filamentous bacterial communities, which serve as nuclei for preferential precipitation of manganese oxides on the extracellular sheaths. Scientific assessment revealed that biological activity played a major role in the development of these manganese oxides.Peer Reviewe
Arnaud Faille - One of the best experts on this subject based on the ideXlab platform.
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The deep Subterranean Environment as a potential model system in ecological, biogeographical and evolutionary research
Subterranean Biology, 2018Co-Authors: David Sánchez-fernández, Alexandra Cieslak, Arnaud Faille, Javier Fresneda, Valeria Rizzo, Jordi Comas, Charles Bourdeau, Enric Lleopart, Andrés Millán, Aitor MontesAbstract:DS-F was supported by a post-doctoral contract funded by Universidad de Castilla-La Mancha and the European Social Fund (ESF). This work was partly funded by two projects funded by the Spanish Ministry of Economy and Competitiveness (CGL2016-76995-P to DSF and CGL2016-76705-P to IR).
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Historical and Ecological Factors Determining Cave Diversity
Cave Ecology, 2018Co-Authors: Ignacio Ribera, Alexandra Cieslak, Arnaud Faille, Javier FresnedaAbstract:Species living in the deep Subterranean Environment tend to share similar morphological characters evolved independently from epigean ancestors, the troglomorphic phenotype. They also tend to have very restricted distributions, as a consequence of their limited dispersal capabilities. Until recent years, the predominant view on the evolution of the Subterranean fauna was that troglomorphic species were strictly confined to the deep Subterranean Environment, with the implication that species not in close geographic vicinity must have independently developed their troglomorphic characters in a sort of concerted evolution close to the traditional concept of orthogenesis. Recent developments on the knowledge of the ecology and the phylogenetic history of several groups with abundance of Subterranean species are changing this view. First, there is increasing evidence that epigean and deep Subterranean Environments form a continuum without clear limits and that troglomorphic species can occupy different parts of this continuum at different times depending on their particular conditions. And second, the availability of molecular phylogenies has led to the discovery of monophyletic lineages of troglomorphic species only, suggesting the single origin of the Subterranean colonisation and of the troglomorphic characters, with subsequent dispersal and diversification of already Subterranean species.
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a new species of bennini hemiptera cixiidae from granitic Subterranean Environment in vietnam an under investigated biotope
Annales Zoologici, 2017Co-Authors: Hannelore Hoch, Arnaud Faille, Thierry Bourgoin, Adeline SoulierperkinsAbstract:Abstract. A new species of the planthopper taxon Bennini (Hemiptera: Fulgoromorpha: Cixiidae) was discovered in the wide interstitial voids of a granitic blockfield in Vietnam. A key to the species of the Vietnam-endemic Bennini genus Sanghabenna is provided and Sanghabenna florenciana sp. nov. is described and illustrated. Molecular data including 18S in part and CO1 barcode sequences of the species, as well as for the first time a detailed description of nymphal morphology of a Bennini are provided. According to the ecological parameters of its habitat and its morphological configuration, Sanghabenna florenciana sp. nov. is classified as an exapted eutroglophile taxon.
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one new species of ptomaphaminus perreau 2000 coleoptera leiodidae cholevinae ptomaphagini from a granitic Subterranean Environment in vietnam
Zootaxa, 2015Co-Authors: Michel Perreau, Arnaud FailleAbstract:Ptomaphaminus granophilus n. sp. from Vietnam is described and illustrated. The special Subterranean biotope of this species, deep interstices in a granitic blockfield, is emphasized.
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late miocene origin of an ibero maghrebian clade of ground beetles with multiple colonizations of the Subterranean Environment
Journal of Biogeography, 2014Co-Authors: Arnaud Faille, Floren Fadrique, Carmelo Andujar, Ignacio RiberaAbstract:A.F. was supported by a postdoctoral Research Fellowship from the Alexander von Humboldt Foundation in the ZSM. The German Research Foundation (project FA1042/1-1) and the Spanish Ministry of Science and Innovation (project CGL2010-15755) provided financial support.
Ignacio Ribera - One of the best experts on this subject based on the ideXlab platform.
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Historical and Ecological Factors Determining Cave Diversity
Cave Ecology, 2018Co-Authors: Ignacio Ribera, Alexandra Cieslak, Arnaud Faille, Javier FresnedaAbstract:Species living in the deep Subterranean Environment tend to share similar morphological characters evolved independently from epigean ancestors, the troglomorphic phenotype. They also tend to have very restricted distributions, as a consequence of their limited dispersal capabilities. Until recent years, the predominant view on the evolution of the Subterranean fauna was that troglomorphic species were strictly confined to the deep Subterranean Environment, with the implication that species not in close geographic vicinity must have independently developed their troglomorphic characters in a sort of concerted evolution close to the traditional concept of orthogenesis. Recent developments on the knowledge of the ecology and the phylogenetic history of several groups with abundance of Subterranean species are changing this view. First, there is increasing evidence that epigean and deep Subterranean Environments form a continuum without clear limits and that troglomorphic species can occupy different parts of this continuum at different times depending on their particular conditions. And second, the availability of molecular phylogenies has led to the discovery of monophyletic lineages of troglomorphic species only, suggesting the single origin of the Subterranean colonisation and of the troglomorphic characters, with subsequent dispersal and diversification of already Subterranean species.
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late miocene origin of an ibero maghrebian clade of ground beetles with multiple colonizations of the Subterranean Environment
Journal of Biogeography, 2014Co-Authors: Arnaud Faille, Floren Fadrique, Carmelo Andujar, Ignacio RiberaAbstract:A.F. was supported by a postdoctoral Research Fellowship from the Alexander von Humboldt Foundation in the ZSM. The German Research Foundation (project FA1042/1-1) and the Spanish Ministry of Science and Innovation (project CGL2010-15755) provided financial support.
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Maghrebian clade of ground beetles with multiple colonizations of the Subterranean Environment
2014Co-Authors: Arnaud Faille, Ignacio Ribera, Floren Fadrique, A. FailleAbstract:Aim To test different biogeographical scenarios for the evolution of the ground beetles of the Trechus fulvus group, a lineage with many narrowly distributed flightless Subterranean species, highly suitable for tracing their biogeographical history. Location The Western Palaearctic, focusing on the Betic–Rifean area between south-east Iberia and north Morocco. Methods We sequenced 3.3 kb of four mitochondrial and two nuclear genes of 30 individuals of 15 species of the T. fulvus group, plus 29 outgroups. We reconstructed their phylogeny and estimated divergence times using Bayesian probabilities and a priori evolutionary rates, and their ancestral distribution using maximum likelihood. Results The phylogenetic reconstruction uncovered multiple independent colonizations of the Subterranean Environment within the T. fulvus group, a scenario also supported by variation in troglomorphic characters. Most of the Moroccan and south-east Iberian species form a clade with strong geographical structure, including the former genus Antoinella. The biogeographical model best fitting the current distribution and phylogeny of the group was a late Miocene palaeogeographical scenario with isolated populations on the Betic and Rifean areas and a south-eastern Iberian origin of the north Moroccan species. The widespread T. fulvus was sister to a central Moroccan species, suggesting a second Iberian–North African vicariance event within the group. One of the species, T. lallemantii, expanded its range to the east (Algeria and Tunisia) and the north (extreme south of the Iberian Peninsula) during the Pleistocene. Main conclusions The T. fulvus group originated in the early Miocene, and the south-eastern Iberian lineage in the Tortonian. The lineage dispersed to Morocco during the Messinian, diversifying in rapid succession in the Atlas and the Rif and colonizing the Subterranean Environment multiple times. The geography of the Betic–Rifean region at the end of the Miocene can still be traced from the distribution of the extant species of the group.
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a molecular phylogeny of alpine Subterranean trechini coleoptera carabidae
BMC Evolutionary Biology, 2013Co-Authors: Arnaud Faille, Achille Casale, Michael Balke, Ignacio RiberaAbstract:The Alpine region harbours one of the most diverse Subterranean faunas in the world, with many species showing extreme morphological modifications. The ground beetles of tribe Trechini (Coleoptera, Carabidae) are among the best studied and widespread groups with abundance of troglobionts, but their origin and evolution is largely unknown. We sequenced 3.4 Kb of mitochondrial (cox1, rrnL, trnL, nad1) and nuclear (SSU, LSU) genes of 207 specimens of 173 mostly Alpine species, including examples of all Subterranean genera but two plus a representation of epigean taxa. We applied Bayesian methods and maximum likelihood to reconstruct the topology and to estimate divergence times using a priori rates obtained for a related ground beetle genus. We found three main clades of late Eocene-early Oligocene origin: (1) the genus Doderotrechus and relatives; (2) the genus Trechus sensu lato, with most anisotopic Subterranean genera, including the Pyrenean lineage and taxa from the Dinaric Alps; and (3) the genus Duvalius sensu lato, diversifying during the late Miocene and including all Subterranean isotopic taxa. Most of the Subterranean genera had an independent origin and were related to epigean taxa of the same geographical area, but there were three large monophyletic clades of exclusively Subterranean species: the Pyrenean lineage, a lineage including Subterranean taxa from the eastern Alps and the Dinarides, and the genus Anophthalmus from the northeastern Alps. Many lineages have developed similar phenotypes independently, showing extensive morphological convergence or parallelism. The Alpine Trechini do not form a homogeneous fauna, in contrast with the Pyrenees, and show a complex scenario of multiple colonisations of the Subterranean Environment at different geological periods and through different processes. Examples go from populations of an epigean widespread species going underground with little morphological modifications to ancient, geographically widespread lineages of exclusively Subterranean species likely to have diversified once fully adapted to the Subterranean Environment.
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Diversification throughout the Subterranean Environment: the Troglocharinus ferreri complex (Coleoptera, Cholevidae, Leptodirini)
2013Co-Authors: Valeria Rizzo, Ignacio Ribera, Jordi Comas, Rocío Alonso, Josep PastorAbstract:Trabajo presentado en el III Congreso Iberico de Biologia Subterranea, celebrado en Barcelona del 2 al 5 de octubre de 2013.
Angel Fernandez-cortes - One of the best experts on this subject based on the ideXlab platform.
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High radon levels in Subterranean Environments: monitoring and technical criteria to ensure human safety (case of Castañar cave, Spain).
Journal of environmental radioactivity, 2015Co-Authors: Miriam Alvarez-gallego, Angel Fernandez-cortes, Soledad Cuezva, E. Garcia-anton, Sergio Sanchez-moralAbstract:Abstract Castanar cave contains the highest radon gas ( 222 Rn) concentration in Spain with an annual average of 31.9 kBq m − 3 . Seasonal variations with summer minimums and maximum values in fall were recorded. The reduction of air-filled porosity of soil and rock by condensation or rainfalls hides the radon exchange by gas diffusion, determining this seasonal stair-step pattern of the radon activity concentration in underground air. The effective total dose and the maximum hours permitted have been evaluated for the guides and public safety with a highly detailed radon measurement along 2011 and 2012. A network of 12 passive detectors (kodalphas) has been installed, as well as, two radon continuous monitoring in the most interesting geological sites of the Subterranean Environment. A follow up of the recommended time (max. 50 min) inside the underground Environment has been analysed since the reopen to public visitors for not surpassing the legal maximum effective dose for tourists and guides. Results shown that public visitors would receive in fall a 12.1% of the total effective dose permitted per visit, whereas in summer it is reduced to 8.6%, while the cave guide received a total effective dose of 6.41 mSv in four months. The spatial radon maps allow defining the most suitable touristic paths according to the radon concentration distribution and therefore, appropriate fall and summer touristic paths are recommended.
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Biogenic Mn oxide minerals coating in a subsurface granite Environment
Chemical Geology, 2012Co-Authors: Ana Z. Miller, Amélia Dionísio, M. A. Sequeira Braga, Mariona Hernández-mariné, Maria José Afonso, Vânia S. F. Muralha, L.k. Herrera, Jörg Raabe, Angel Fernandez-cortes, Soledad CuezvaAbstract:Abstract This paper reports the results of a study of biogenic Mn oxide minerals coating in a subsurface granite Environment. This Subterranean Environment corresponds to galleries of a 16th century spring water tunnel dug throughout the granite bedrock located in Porto city (NW Portugal). Several techniques (XRD, FTIR, Raman, ICP-MS, TEM-EDS, FESEM-EDS, STEM-EDS and STXM-NEXAFS) were used to assess the mechanisms involved in the formation of manganese oxides, specifically birnessite and todorokite. These manganese oxides presented peculiar shapes, nano-dimensions, low degree of crystallinity, and high levels of some trace elements such as P, Ca, C, Al, Si, Ba and Zn. They were associated with large amounts of extracellular polymeric substances exuded by filamentous bacterial communities, which serve as nuclei for preferential precipitation of manganese oxides on the extracellular sheaths. Scientific assessment revealed that biological activity played a major role in the development of these manganese oxides.
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Biogenic Mn oxide minerals coating in a subsurface granite Environment
Chemical Geology, 2012Co-Authors: Ana Z. Miller, Amélia Dionísio, Mariona Hernández-mariné, Maria José Afonso, Vânia S. F. Muralha, L.k. Herrera, Jörg Raabe, Angel Fernandez-cortes, M.a. Sequeira Braga, Soledad CuezvaAbstract:Miller, A. Z. et al.--This paper reports the results of a study of biogenic Mn oxide minerals coating in a subsurface granite Environment.This Subterranean Environment corresponds to galleries of a 16th century spring water tunnel dug throughout the granite bedrock located in Porto city (NW Portugal). Several techniques (XRD, FTIR, Raman, ICP-MS, TEM-EDS, FESEM-EDS, STEM-EDS and STXM-NEXAFS) were used to assess the mechanisms involved in the formation of manganese oxides, specifically birnessite and todorokite. These manganese oxides presented peculiar shapes, nano-dimensions, low degree of crystallinity, and high levels of some trace elements such as P, Ca, C, Al, Si, Ba and Zn. They were associated with large amounts of extracellular polymeric substances exuded by filamentous bacterial communities, which serve as nuclei for preferential precipitation of manganese oxides on the extracellular sheaths. Scientific assessment revealed that biological activity played a major role in the development of these manganese oxides.Peer Reviewe
Jason N. Gross - One of the best experts on this subject based on the ideXlab platform.
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Search Planning of a UAV/UGV Team with Localization Uncertainty in a Subterranean Environment.
arXiv: Robotics, 2021Co-Authors: Matteo De Petrillo, Jared J. Beard, Jason N. GrossAbstract:We present a waypoint planning algorithm for an unmanned aerial vehicle (UAV) that is teamed with an unmanned ground vehicle (UGV) for the task of search and rescue in a Subterranean Environment. The UAV and UGV are teamed such that the localization of the UAV is conducted on the UGV via the multi-sensor fusion of a fish-eye camera, 3D LIDAR, ranging radio, and a laser altimeter. Likewise, the trajectory planning of the UAV is conducted on the UGV, which is assumed to have a 3D map of the Environment (e.g., from Simultaneous Localization and Mapping). The goal of the planning algorithm is to satisfy the mission's exploration criteria while reducing the localization error of the UAV by evaluating the belief space for potential exploration routes. The presented algorithm is evaluated in a relevant simulation Environment where the planning algorithm is shown to be effective at reducing the localization errors of the UAV.
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search planning of a uav ugv team with localization uncertainty in a Subterranean Environment
arXiv: Robotics, 2021Co-Authors: Matteo De Petrillo, Jared J. Beard, Jason N. GrossAbstract:We present a waypoint planning algorithm for an unmanned aerial vehicle (UAV) that is teamed with an unmanned ground vehicle (UGV) for the task of search and rescue in a Subterranean Environment. The UAV and UGV are teamed such that the localization of the UAV is conducted on the UGV via the multi-sensor fusion of a fish-eye camera, 3D LIDAR, ranging radio, and a laser altimeter. Likewise, the trajectory planning of the UAV is conducted on the UGV, which is assumed to have a 3D map of the Environment (e.g., from Simultaneous Localization and Mapping). The goal of the planning algorithm is to satisfy the mission's exploration criteria while reducing the localization error of the UAV by evaluating the belief space for potential exploration routes. The presented algorithm is evaluated in a relevant simulation Environment where the planning algorithm is shown to be effective at reducing the localization errors of the UAV.
