A study of a population of Pseudanophthalmus tenuis is being conducted in Murray Spring Cave, Orange County, Indiana as one facet of a larger research project encompassing the entire terrestrial community of that cave. Changes in behaviour and abundance determined by census and mark-recapture methods and physiological changes determined from field-collected beetles indicates that these animals exhibit a seasonal reproductive rhythm probably mediated or controlled by winter and spring flooding of the cave.
Keith, James H..
Seasonal changes in a population of Pseudanopthalmus tenuis (Coleoptera, Carabidae) in Murray Spring Cave, Indiana: a preliminary report.
International Journal of Speleology,
Available at: http://scholarcommons.usf.edu/ijs/vol7/iss1/4