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1.
Hydrogeological role of large conduits in karst drainage system
Janez Turk, 2010, doctoral dissertation

Found in: ključnih besedah
Summary of found: ...vodonosnik, podzemni vodni tokovi, hitrost, hidrogram, Postojnska jama, disertacije, ...
Keywords: kraški vodonosnik, podzemni vodni tokovi, hitrost, hidrogram, Postojnska jama, disertacije
Published: 15.10.2013; Views: 3645; Downloads: 168
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2.
Onesnaženost rovov v Postojnski jami s prašnimi delci
Aleksandra Jovičić, 2011, undergraduate thesis

Found in: ključnih besedah
Summary of found: ...Postojnska jama, jamski turizem, prašni delci, usedline, mikroklima, težke...
Keywords: Postojnska jama, jamski turizem, prašni delci, usedline, mikroklima, težke kovine, diplomske naloge
Published: 15.10.2013; Views: 4293; Downloads: 379
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3.
Determinante i efekti speleoturizma na razvoj nerazvijenih područja
Jasminko Mulaomerović, 2009, doctoral dissertation

Found in: ključnih besedah
Summary of found: ...kras, jamski turizem, jame, lokalni razvoj, jama Vjetrenica, jama Ledenica, jama Hrustovača, disertacije, ...
Keywords: kras, jamski turizem, jame, lokalni razvoj, jama Vjetrenica, jama Ledenica, jama Hrustovača, disertacije
Published: 15.10.2013; Views: 4222; Downloads: 219
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4.
Ecological evaluation of aquatic and terrestrial subterranean fauna in a karst cave
Peter Kozel, 2018, doctoral dissertation

Abstract: Studies on environmental parameters−subterranean fauna relationship and spatial and temporal patterns of subterranean fauna have dealt with either aquatic or terrestrial faunas. So far, no simultaneous ecological evaluation of aquatic and terrestrial faunas has been performed. To address this issue, we conducted a pilot study dealing in parallel with these two faunas in the cave Zguba jama near Postojna, Slovenia, applying monthly sampling over one year. Aquatic fauna was sampled from permanent water drips, and terrestrial fauna by visual inspection and advanced baited pitfall trapping, along with recording the main abiotic parameters. In percolating water, we recorded aquatic fauna, Copepoda being the dominant taxon, and species-rich troglobiotic fauna, which most probably coexist with aquatic species in a semi-aquatic epikarst environment. Analyses revealed that temperature, distance from the entrance and ceiling thickness are the most important parameters that influence the presence of stygobionts; higher values of these parameters result in a higher probability of the presence of stygobionts in percolation water. The recorded spatial distribution of stygobionts varied distinctly among the sampling sites. This indicates that fauna in sampled drips originated from aquatic or semiaquatic epikarst microhabitats, being completely or nearly completely separated from each other, and probably varied according to environmental characteristics. The temporal pattern of the stygobiotic fauna dynamics presumably occurred because of variable water flow rates and the specific physical and chemical characteristics of the water. The abundance of troglobionts showed distinctive spatial distribution pattern over the seasons. In spring and summer, the highest abundances and the highest probability of presence were found near the entrance. In autumn and winter, unfavorable conditions in the entrance zone most likely triggered the migration of troglobionts towards the climatically more stable deep cave zone, and from the cave into the adjacent fissure network. The highest abundance of troglobionts was found at 7–9°C and relatively high ground substrate moisture. Additionally, we found a higher probability of the presence of troglobionts in cave sections with a larger passage cross-section size, which is probably due to the greater variability of microhabitat types in spacious cave sections. In addition, the higher probability of presence relates to higher substrate pH. One potential explanation for this could be that the specific microorganism communities present in such conditions support the nutritional needs of troglobionts. Most troglobiotic species preferred the deep cave zone where the highest species richness and diversity were also observed. Species richness, abundance and diversity of troglophiles and trogloxenes were highest in the entrance zone and showed relatively similar patterns within the cave. However, troglophiles were more abundant in the transition zone and the initial part of the inner zone. The temporal pattern of trogloxenes and presumably of most troglophiles occurred because of migration between the surface and the cave. The probability of the presence of trogloxenes was highest in the entrance zone and in winter, owing to massive overwintering in the cave. A modified technique of pitfall trapping by placing traps in two parallel sets, a ground and an upper one along the cave, resulted in recording greater species diversity in comparison with the traditional method, i.e., ground pitfall trapping alone. It turned out that such sampling contributes at the same time to both more effective and less invasive inventory of subterranean fauna. The dynamics of relative abundance and species richness of stygobionts and troglobionts within the cave showed partly comparable annual patterns. Nevertheless, our findings point toward the need for a long-term and more detailed study in future to address this question properly.
Found in: ključnih besedah
Summary of found: ...these two faunas in the cave Zguba jama near Postojna, Slovenia, applying monthly sampling over...
Keywords: biological inventories, epikarst fauna, faunal dynamics, microhabitats, stygobionts, troglobionts, troglophiles, trogloxenes, Zguba jama
Published: 16.02.2018; Views: 2433; Downloads: 241
.pdf Fulltext (5,25 MB)

5.
Analiza mikroplastike v izbranih površinskih in podzemeljskih kraških vodah
Lara Valentić, 2018, master's thesis

Abstract: V okviru magistrskega dela smo se osredotočili na postojnsko in škocjansko območje, kjer so bila opravljena vzorčenja ponikalnic Pivke in Reke z delom njunih porečij ter jamami, ki so z rekama povezane. Vzorčenja smo opravili v površinskem toku obeh ponikalnic, iztoku iz čistilne naprave v Postojni in Ilirski Bistrici, v različnih vodnih telesih v jamah (ponvicah, lužah in podzemeljskem toku ponikalnic) ter deževnici na obeh območjih. V okolici Postojne smo vzorčili izvir Malni, ki celotno Pivško kotlino oskrbuje s pitno vodo, in površinski tok reke Unice na Planinskem polju. Na škocjanskem območju smo vzorčili iztok iz smetišča Globovnik pri Ilirski Bistrici, umetno jezero Mola, izvire Timave in izvir Brojenca, ki se neposredno izlivajo v Jadransko morje. Kjer je bilo mogoče, smo odvzeli tudi vzorce sedimenta. Skupno je bilo z obeh območij zbranih 58 vzorcev vode in 29 vzorcev sedimenta. Izmed vseh 87 vzorcev je bila mikroplastika prisotna v 31 vzorcih – 26 je bilo vodnih vzorcev, mikroplastiko pa je vsebovalo tudi 5 vzorcev sedimenta. Vzorci sedimenta z mikroplastiko so bili najdeni izključno na škocjanskem območju. Mikroplastika je bila najdena tudi v vzorcih deževnice.
Found in: ključnih besedah
Summary of found: ...mikroplastika, kraške vode, Postojnska jama, Škocjanske jame, porečje, vodni vzorci, vzorci sedimenta...
Keywords: mikroplastika, kraške vode, Postojnska jama, Škocjanske jame, porečje, vodni vzorci, vzorci sedimenta
Published: 30.08.2018; Views: 2911; Downloads: 180
.pdf Fulltext (22,17 MB)

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