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Related Concept Videos

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Classification is the process of organizing organisms into hierarchically inclusive groups based on their phenotypic similarities or evolutionary relationships. A species comprises one or more strains, and closely related species are grouped into genera. Genera are further classified into families, families into orders, orders into classes, and so forth, up to the domain level, which is the broadest taxonomic rank derived from a combination of phenotypic and genotypic data.The nomenclature of...
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Molecular taxonomy has revolutionized the understanding and classification of bacteria, providing precise insights into their diversity, evolutionary relationships, and ecological roles. By utilizing molecular techniques such as DNA sequencing and fingerprinting, researchers have made significant strides in various fields related to bacterial studies.Resolving Taxonomic AmbiguitiesMolecular taxonomy has been instrumental in distinguishing closely related bacterial species initially thought to...
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Crenarchaeota, a prominent phylum of Archaea, is remarkable for its ability to thrive in extreme environments characterized by high temperatures and acidity. These microorganisms inhabit sulfuric hot springs, volcanic systems, and submarine hydrothermal vents, where temperatures often exceed 100°C. The unique adaptations of Crenarchaeota not only allow survival under such extreme conditions but also provide insights into the mechanisms of life in primordial Earth-like...
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Related Experiment Video

Updated: Aug 10, 2025

Use of MALDI-TOF Mass Spectrometry and a Custom Database to Characterize Bacteria Indigenous to a Unique Cave Environment Kartchner Caverns, AZ, USA
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Tourism affects microbial assemblages in show caves.

Elena Piano1, Federico Biagioli2, Giuseppe Nicolosi1

  • 1Department of Life Sciences and Systems Biology, University of Torino, Via Accademia Albertina 13, 10123 Torino, Italy.

The Science of the Total Environment
|February 10, 2023
PubMed
Summary
This summary is machine-generated.

Human tourism directly impacts cave bacteria and indirectly affects fungi and archaea. Stochastic factors increasingly shape microbial communities in show caves, highlighting the need for multi-taxonomic approaches to understand ecosystem responses.

Keywords:
ArchaeaBacteriaBeta diversityFungiMicrobiomeShow caves

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Area of Science:

  • Ecology
  • Microbiology
  • Environmental Science

Background:

  • Anthropogenic disturbances increasingly impact natural ecosystems.
  • Understanding ecosystem responses to human disturbance is crucial.
  • A metacommunity framework aids in studying biocoenosis responses.

Purpose of the Study:

  • Investigate the effects of tourism on sediment microbial communities (Fungi, Bacteria, Archaea) in Italian show caves.
  • Analyze how human disturbance alters microbial diversity and community composition.
  • Identify the driving forces shaping microbial communities under tourism pressure.

Main Methods:

  • Utilized advanced molecular techniques to study sediment communities.
  • Modeled diversity measures against proxies of tourism pressure.
  • Compared microbial communities in show caves with undisturbed areas.

Main Results:

  • Cave tourism directly affects bacterial communities.
  • Tourism indirectly influences fungal and archaeal communities.
  • Stochastic factors dominate community composition in show caves over environmental selection and dispersal.

Conclusions:

  • Cave tourism significantly alters microbial community structure and diversity.
  • Stochastic processes play a larger role in shaping microbial communities in disturbed cave environments.
  • A comprehensive, multi-taxonomic approach is essential for understanding microbial dynamics under human disturbance.