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Articles

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Assessing the impact of lampenflora growth on invertebrate distribution and food resource use in Ryusen-do Cave, Japan
Kazuhide Nakajima, Kanato Ando, Shuji Watanabe, and Masuo Komukai

  • Invertebrate species distribution varies with bat feces and tourism-induced disturbance
  • Bat feces and guano are key factors influencing invertebrate distribution in Ryusen-do Cave
  • Lampenflora growth may negatively affect troglomorphic invertebrates, but may benefit non-troglomorphic species
  • Lampenflora impacts were evident even in a well-managed show cave

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Drainage proximity and sinkhole occurrence in Sivrihisar (Central Turkey): A comparative analysis of linear, Poisson, and negative binomial regression models
Bilge Bingül, Emrah Pekkan, and Resul Çömert

  • Sinkhole frequency increases significantly with proximity to drainage networks
  • Data overdispersion invalidates standard Poisson models
  • Negative Binomial Regression outperforms linear and Poisson models
  • Hydrochemistry reveals dolomite dissolution, not gypsum
  • First comprehensive inventory maps 104 cover-collapse sinkholes

Technical Note

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Riki&Dolphin: real time data transmission from the bottom of a cave to a website
Luca Tringali, Giacomo Canciani Dr., Tecla Tripari, Alexander Debenjak, and Caterina Bearzotti

  • Dolphin sensors can be placed hundreds of meters deep in a cave
  • Riki board can be placed outdoor, powering Dolphin with a 12 V battery for months 
  • Main maintenance can be performed only on Riki and Dragino (outside the cave) 
  • Data transmission through LoRaWAN, optional datalogging on a SD card placed outdoor 
  • Modular customizable design, with support for analog, digital, I2C, serial sensors