Number of studies performed in particular habitats (dark bar) and number of records of stygobiontic species found in them (light bar).

 
 
  Part of: Dumnicka E, Galas J (2017) An overview of stygobiontic invertebrates of Poland based on published data. Subterranean Biology 23: 1-18. https://doi.org/10.3897/subtbiol.23.11877