Algae in the aerophytic habitat of Račiške ponikve cave (Slovenia) | Alge v aerofitskem habitatu jame Račiške ponikve (Slovenija)
2008
Mulec, Janez | Kosi, Gorazd
English. In the cave entrance of Račiške ponikve, four selected sites with confluent algal growth and different sun irradiance levels were sampled for algological analysis. Altogether, 42 algal taxa were determined, with the highest proportion of cyanobacteria, 30 taxa (71%), followed by 8 taxa (19%) of Chlorophyta and 4 taxa (10%) of Chrysophyta. The favourable ratio of Oscillatoriales vs. Nostocales indicates that flora in Račiške ponikve cave is generally exposed to low photo flux. In the twilight zone of the cave, coccoid cyanobacteria prevailed. Moreover, at all sampling points algae characteristic of water and/or soil habitats were also identified besides typical aerophytic algae.
Show more [+] Less [-]Slovenian. Za algološko vrstno sestavo smo v jamskem vhodu Račiških ponikev opravili vzorčenje na štirih izbranih mestih s konfluentno obrastjo alg in različno izpostavljenostjo sončni osvetlitvi. Skupaj smo identificirali 42 taksonov alg, z največjim deležem cianobakterij, 30 taksonov (71%), ki so jim sledili predstavniki Chlorophyta z 8 taksoni (19%) in s 4 taksoni (10%) Chrysophyta. Višji delež Oscillatoriales v primerjavi s predstavniki Nostocales nakazuje, da je flora v jamskem vhodu Račiških ponikev izpostavljena pretežno šibkim intenzitetam svetlobe. V jami v pasu somraka prevladujejo kokoidne cianobakterije. Na vseh vzorčnih mestih smo poleg alg, ki so značilne aerofitske, identificirali tudi alge, ki navadno uspevajo v vodnih in terestičnih habitatih.
Show more [+] Less [-]AGROVOC Keywords
Bibliographic information
This bibliographic record has been provided by University of Ljubljana