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Speleology in Kazakhstan

Shakalov on 04 Jul, 2018
Hello everyone!   I pleased to invite you to the official site of Central Asian Karstic-Speleological commission ("Kaspeko")   There, we regularly publish reports about our expeditions, articles and reports on speleotopics, lecture course for instructors, photos etc. ...

New publications on hypogene speleogenesis

Klimchouk on 26 Mar, 2012
Dear Colleagues, This is to draw your attention to several recent publications added to KarstBase, relevant to hypogenic karst/speleogenesis: Corrosion of limestone tablets in sulfidic ground-water: measurements and speleogenetic implications Galdenzi,

The deepest terrestrial animal

Klimchouk on 23 Feb, 2012
A recent publication of Spanish researchers describes the biology of Krubera Cave, including the deepest terrestrial animal ever found: Jordana, Rafael; Baquero, Enrique; Reboleira, Sofía and Sendra, Alberto. ...

Caves - landscapes without light

akop on 05 Feb, 2012
Exhibition dedicated to caves is taking place in the Vienna Natural History Museum   The exhibition at the Natural History Museum presents the surprising variety of caves and cave formations such as stalactites and various crystals. ...

Did you know?

That calcite bubble is a hollow sphere formed by the deposition of calcite around a gas bubble; the interior is smooth, and the exterior consists of small jagged crystals [10].?

Checkout all 2699 terms in the KarstBase Glossary of Karst and Cave Terms

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KarstBase a bibliography database in karst and cave science.

Featured articles from Cave & Karst Science Journals
Chemistry and Karst, White, William B.
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Featured articles from other Geoscience Journals
Karst environment, Culver D.C.
Mushroom Speleothems: Stromatolites That Formed in the Absence of Phototrophs, Bontognali, Tomaso R.R.; D’Angeli Ilenia M.; Tisato, Nicola; Vasconcelos, Crisogono; Bernasconi, Stefano M.; Gonzales, Esteban R. G.; De Waele, Jo
Calculating flux to predict future cave radon concentrations, Rowberry, Matt; Marti, Xavi; Frontera, Carlos; Van De Wiel, Marco; Briestensky, Milos
Microbial mediation of complex subterranean mineral structures, Tirato, Nicola; Torriano, Stefano F.F;, Monteux, Sylvain; Sauro, Francesco; De Waele, Jo; Lavagna, Maria Luisa; D’Angeli, Ilenia Maria; Chailloux, Daniel; Renda, Michel; Eglinton, Timothy I.; Bontognali, Tomaso Renzo Rezio
Evidence of a plate-wide tectonic pressure pulse provided by extensometric monitoring in the Balkan Mountains (Bulgaria), Briestensky, Milos; Rowberry, Matt; Stemberk, Josef; Stefanov, Petar; Vozar, Jozef; Sebela, Stanka; Petro, Lubomir; Bella, Pavel; Gaal, Ludovit; Ormukov, Cholponbek;
See all featured articles from other geoscience journals

NSS
Journal of Cave and Karst Studies, 2008, Vol 70, Issue 1, p. 3-12
Characterization of cave aerophytic algal communities and effects of irradiance levels on production of pigments
Abstract:
Aerophytic algae grow on various substrata under favourable ecological conditions. In the illuminated parts of caves, where relative humidity reaches 100%, they colonize sediments, rocky surfaces, and artificial materials. An aerophytic algal community from the cave entrance is composed almost exclusively of cyanobacteria, in contrast to lampenflora where green algae become more dominant. In the later stage of species succession in the lampenflora community, cyanobacteria are more abundant and thus community structure becomes more similar to the community from the cave entrance. Absence of correlation between photon flux density and chlorophyll a concentration indicates that substratum characteristics at the micro level notably influence algal growth. Chl a concentration per surface unit in the case of the epilithic algae from the cave entrance is lower (max. 1.71 mg cm22) compared to that for the lampenflora algae (max. 2.44 mg cm22). At cave temperatures, the light saturation point is quickly reached. At 9.0 uC and frequent low photon flux densities in a cave entrance and around lamps in show caves, biosynthesis of accessory photosynthetic pigments for two typical cave aerophytic organisms, cyanobacterium Chroococcus minutus and green alga Chlorella sp., is considerably elevated.