Groundwater biodiversity in a chemoautotrophic cave ecosystem: how geochemistry regulates microcrustacean community structure

  title={Groundwater biodiversity in a chemoautotrophic cave ecosystem: how geochemistry regulates microcrustacean community structure},
  author={Diana Maria Paola Galassi and Barbara Fiasca and Tiziana Di Lorenzo and A. Montanari and Silvano Porfirio and Simone Fattorini},
  journal={Aquatic Ecology},
The Frasassi cave system in central Italy hosts one of the few known examples of a groundwater metazoan community that is supported by sulfur-based lithoautotrophic microbes. Despite the challenging conditions represented by high concentrations of H2S and low concentrations of O2, this cave system is home to many invertebrate species. Here, we analyzed the copepods inhabiting sulfidic lakes and non-sulfidic dripping pools in order to investigate how environmental conditions in sulfidic waters… 
Linking Hydrogeology and Ecology in Karst Landscapes: The Response of Epigean and Obligate Groundwater Copepods (Crustacea: Copepoda)
Groundwater invertebrate communities in karst landscapes are known to vary in response to multiple environmental factors. This study aims to explore the invertebrate assemblages’ composition of an
The Chemoautotrophically Based Movile Cave Groundwater Ecosystem, a Hotspot of Subterranean Biodiversity
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Amphipods in a Greek cave with sulphidic and non-sulphidic water: phylogenetically clustered and ecologically divergent
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Effect of Temperature Rising on the Stygobitic Crustacean Species Diacyclops belgicus: Does Global Warming Affect Groundwater Populations?
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Niche differentiation among sulfur-oxidizing bacterial populations in cave waters
The results highlight the versatility and ecological success of Beggiatoa in diffusion-controlled niches, and demonstrate that high sulfide/oxygen ratios in turbulent water are important for the growth of filamentous epsilonproteobacteria.
Recognition of the metabolic process of chemosynthesis has recently overthrown the ecological dogma that all life on earth is dependent on sunlight. In complete darkness, complex ecosystems can be
Community Structure of Subsurface Biofilms in the Thermal Sulfidic Caves of Acquasanta Terme, Italy
The ecological success of Sulfurovumales-group Epsilonproteobacteria in the Acquasanta biofilms is consistent with previous observations of their dominance in sulfidic cave waters with turbulent water flow and high dissolved sulfide/oxygen ratios.
A novel symbiosis between chemoautotrophic bacteria and a freshwater cave amphipod
The discovery of abundant filamentous bacteria on the exoskeleton of Niphargus ictus, a macroinvertebrate endemic to Frasassi, is reported, establishing the first known example of a non-marine chemoautotroph-animal symbiosis.
Dominant Microbial Populations in Limestone-Corroding Stream Biofilms, Frasassi Cave System, Italy
The results suggest that S cycling within the stream biofilms is an important feature of the cave biogeochemistry and represents positive biological feedback to sulfuric acid speleogenesis and related processes that create subsurface porosity in carbonate rocks.
Metabolic rates of a hypogean and an epigean species of copepod in an alluvial aquifer
The metabolic rate of D. belgicus was significantly lower than that of the epigean E. serrulatus irrespective of the ontogenetic stage, which would be consistent with the hypothesis that there is a generally lower metabolic rate in groundwater species.
Microbial contributions to cave formation: New insights into sulfuric acid speleogenesis
The sulfuric acid speleogenesis (SAS) model was introduced in the early 1970s from observations of Lower Kane Cave, Wyoming, and was proposed as a cave-enlargement process due to primarily H 2 S
Unsuspected diversity of Niphargus amphipods in the chemoautotrophic cave ecosystem of Frasassi, central Italy
The results suggest that four distinct Niphargus species are present in Frasassi and that they originated from three or four independent invasions of the cave system.
Ostracod Assemblages in the Frasassi Caves and Adjacent Sulfidic Spring and Sentino River in the Northeastern Apennines of Italy
Rich, diverse assemblages comprising a total (live + dead) of twenty-one ostracod species belonging to fifteen genera were recovered from phreatic waters of the hypogenic Frasassi Cave system and the
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