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Biodiversity of cave world in Serbia and the impact of tourism planning
                                     commercialization of speleological objects
                                                        Irena Gorjanc
                                            Kakanjska 2, flat 4, Rakovica 11060, Belgrade
               1. Introduction                                    a mixing of surface and  underground  water , also  a
               Development of caving as a multidisciplinary science   multiple  increase  in  the  concentration  of  heavy
               in the last two hundred years has enabled many new   metals.  Extending  the  entrance  to  Lazareva  cave
               discoveries  in  the  field  of  geomorphology  ,   caving  formations  were  destroyed  ,  the  cave
               stratigraphy  ,  biology,  hydrology,  even  history.  Her   microclimate  disrupted  and  the  habitat  of  relict  and
               progress  has  also  opened  up  possibilities  for  wide   endemic species destroyed.
               number  of  people  to  visit  caves  and    their  use  for
               tourism purposes.
               The aim of this study was to objectively consider the
               consequnces  of  mass  commercialization  of  caves  in
               Serbia  ,  adhering  to  the  undisputed  educational  and
               possible financial effects and to point out the dangers
               to biodiversity and the cave world heritage that may
               arise from inadequate planning .
               2. Method                                                 Picture 3-Rubbish deep in the cave
               Data  on  the  biodiversity  of  individual  objects  was   4. Conclusion
               analyzed  from  the  references,  in  the  period  of
               discovering the speleological objects, and later during   Unfortunately, the negative impact on biodiversity is
               the  development  and  commercial  exploitation.   undisputed  and  particularly  disastrous.  The  only
               Finding  and  processing  data  from  literature  was   solution is to approach the tourist arrangement on a
                                                                  very restrictive way. When  approaching to equip it
               accompanied   by   a   tour   of   caves   for     has  to  be  done  with  the  constant  monitoring
               photodocumentation of  their condition.
                                                                  (temperature,  humidity,  chemical  and  physical
                                                                  properties  of  soil,  water  (especially  pH,  dissolved
                                                                  oxygen, conductivity), the atmosphere, the brightness
                                                                  (lux),  biodiversity).  Species  whose  survival  we
                                                                  threaten deserve at least a sign at the entrance to the
                                                                  cave, which warn about their existence.

                                                                  5. References
                                                                  1.  S.  Mikšić,  Characteristics  of  karst  fauna  (1979)
               Picture 1- The entrance     Picture 2-The entrance to   Ništru "oslobođenje" of Sarajevo
               To Rćanska cave,              Rćanska cave, regulated   2.  T.  Slišković  stratigraphic  and  paleontological
               not regulated                                      studies of cave deposits in Bosnia and Herzegovina
                                                                  (1979) Ništru "oslobođenje" of Sarajevo
               3. Results                                         3.  J.  Gunn  Encyclopedia  of  karst  science  (2003),
               The survey results clearly indicate degeneration and   Routledge, London
               withdrawal of cave fauna, in some cases the complete   4.  Srbijašume  Management    plan  for  natural
               extinction  of  species,  also  the  emergence  of  non-  monuments  "Lazarev  Canyon"  for  the  period  2011-
               native  plant  and  animal  species  are  found  in  many   2020, (2000) Official Gazette of RS No. 16/2000
               objects.  The  equipment  of  Resavska  cave  began  in   5.  V.  Stevanovic,  B.  Stevanovic  Basic  climatic,
               1971 . Lighting was done by regular tungsten lighting   geological and pedological factors of biodiversity in
               which in the next 20 years led to the overgrowth of   terrestrial ecosystems of Yugoslavia (1995) p. 75-115
               lower plants , drying of rock and cave ornaments near   Ekolobri, Faculty of Biology, Belgrade
               the  lightes.  In  Lazar's  Cave  ,  concreting  and   6.  Predrag  Đurović  Speleological  atlas  of  Serbia
               electrification  ,  led  to  development  of  non-native   (1999)  Geographical Institute “Jovan Cvijić" SANU,
               "lapmflora"  and  because  of  the  infrastructure   Belgrade
               planning in the near-by cave environment, there was
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