Open Access. Powered by Scholars. Published by Universities.®
- Discipline
-
- Geology (494)
- Geochemistry (140)
- Geomorphology (138)
- Speleology (128)
- Hydrology (117)
-
- Environmental Sciences (104)
- Other Earth Sciences (70)
- Geophysics and Seismology (68)
- Oceanography and Atmospheric Sciences and Meteorology (67)
- Life Sciences (60)
- Arts and Humanities (55)
- American Studies (41)
- Engineering (39)
- Biogeochemistry (38)
- Climate (37)
- Environmental Monitoring (37)
- Social and Behavioral Sciences (32)
- Civil and Environmental Engineering (28)
- Ecology and Evolutionary Biology (25)
- Geography (25)
- Paleontology (23)
- Sedimentology (23)
- Water Resource Management (22)
- Other Oceanography and Atmospheric Sciences and Meteorology (21)
- Education (16)
- Geographic Information Sciences (15)
- Microbiology (15)
- Environmental Indicators and Impact Assessment (14)
- Keyword
-
- Karst (52)
- Romania (51)
- Speleogenesis (33)
- Caves (29)
- Cave (28)
-
- Geology (28)
- Speleothems (25)
- Geochemistry (19)
- Cave minerals (18)
- Stable isotopes (18)
- Speleothem (17)
- Foraminifera (16)
- GPS (16)
- Remote sensing (15)
- Geomorphology (13)
- Biostratigraphy (12)
- Hydrogeology (12)
- Florida (11)
- Gypsum (11)
- Paleoclimate (11)
- Holocene (10)
- Palaeoclimate (10)
- Apuseni Mountains (9)
- Biogeochemistry (9)
- GIS (9)
- Geophysics (9)
- Limestone (9)
- Sediments (9)
- Stalagmite (9)
- Cave monitoring (8)
- Publication
-
- International Journal of Speleology (889)
- School of Geosciences Faculty and Staff Publications (355)
- USF Tampa Graduate Theses and Dissertations (272)
- Studia UBB Geologia (211)
- Sinkhole Conference 2015 (45)
-
- Geology Faculty Publications (38)
- The International Workshop on Ice Caves (15)
- National Cave and Karst Management Symposium 2013 (14)
- Numeracy (12)
- School of Geosciences Student Publications (11)
- FRONTIERS UNBOUND: Exploring Extreme Environments (8)
- Environmental Sustainability Books (3)
- Reports (3)
- Alambique. Revista académica de ciencia ficción y fantasía / Jornal acadêmico de ficção científica e fantasía (1)
- Integrative Biology Faculty and Staff Publications (1)
- Journal of Global Education and Research (1)
- Marine Science Faculty Publications (1)
- Publication Type
- File Type
Articles 1621 - 1650 of 1880
Full-Text Articles in Earth Sciences
Humidity Responses And The Role Of Hamann's Organ Of Cavernicolous Bathysciinae (Coleoptera Catopidae), Marco Lucarelli, Valerio Sbordoni
Humidity Responses And The Role Of Hamann's Organ Of Cavernicolous Bathysciinae (Coleoptera Catopidae), Marco Lucarelli, Valerio Sbordoni
International Journal of Speleology
The humidity responses of Bathysciola derosasi and Leptodirus hohenwarti, two species of troglobitic Bathysciinae showing different degrees of adaptation to cave environment, have been studied. Intact and antennectomised subjects were tested using choice-chambers with various combinations of relative humidity alternatives (i.e. 20-100%, 50-100%, 90-100%, 50-90% and, as controls, 100-100%) to investigate the role played by the sense organs situated on the 7th, 9th and 10th antenna segments. The results show that intact-antenna subjects of both species are very sensitive to humidity gradients and that their intensity of reaction varies according to the intensity of stimulus, as previously reported by …
Ostracodes Hypogés Du Sud De La France. 1. Mixtocandona Juberthieae N.Sp., Dan L. Danielopol
Ostracodes Hypogés Du Sud De La France. 1. Mixtocandona Juberthieae N.Sp., Dan L. Danielopol
International Journal of Speleology
The description of Mixtacandona juberthieae n.sp. is presented. The new species belongs to the group taurica and has been found in the karstic system of the Vidourle river at Sauve (Gard).
Magniezia Gardei N.Sp. (Crustacca Isopoda Asellote): Un Sténasellide Des Eaux Souterraines Du Maroc Sud-Oriental, Guy Magniez
Magniezia Gardei N.Sp. (Crustacca Isopoda Asellote): Un Sténasellide Des Eaux Souterraines Du Maroc Sud-Oriental, Guy Magniez
International Journal of Speleology
This new species has been discovered in the waters of Kef Aziza Cave, on the Saharian slopes of the High Atlas Range, Southeastern Morocco. Magniezia gardei n.sp. belongs to the same Genus as four species previously described from the phreatic waters of the Guinean area. So, it is assumed that this Moroccan species should be a relict of the ancient aquatic hypogean fauna of the entire West Africa, nowadays protected by the development of an arid climate.
Ecological Investigations Of The Influence Of A Polluted River On Surrounding Interstitial Underground Waters, Milan Meštrov, Romana Lattinger-Penko
Ecological Investigations Of The Influence Of A Polluted River On Surrounding Interstitial Underground Waters, Milan Meštrov, Romana Lattinger-Penko
International Journal of Speleology
Because of the fundamental biological investigations and also of the practical importance, the authors investigated interstitial subterranean water (hyporheic) near a polluted river Sava in the plain where the underground waters are considered as potable. With the comparison of the physical, chemical, bacteriological, saprobiological and faunistic characteristics of the river and its hyporheic zone in different seasons their mutual relation is detected. The results show the influence of polluted river water on the hyporheic water within the river bed to at least 2 m depth.
Une Espèce Inédite De Rhachomyees (Ascomycètes, Laboulbeniales) Parasite Du Carabique Troglobie, Speagonum Mirabile Moore De La Nouvelle-Guinée (Resultats Zoologiques De L'Expedition Spéléologique Britannique En Papouasie-Nouvelle Guinée, 1975, 3), Walter Rossi
International Journal of Speleology
Rhachomyces beronii n. sp., parasitic on Speagonum mirabile Moore (Coleoptera, Carabidae, Anchomenini) from New Guinea, is described. The new species resembles Rhachomyces tenuis Thaxt, in general habit, but it differs from the latter in having a smaller receptacle, a larger and less pigmented perithecium, a different structure of the appendages and in the multiplication of appendiculate cells.
A Classification Of Karstic Phenomena, Arrigo A. Cigna
A Classification Of Karstic Phenomena, Arrigo A. Cigna
International Journal of Speleology
The paper describes and classifies the several types of karstic processes, distinguishing karstic, parakarstic, hypokarstic, hyperkarstic and pseudokarstic phenomena. An appendix on solubility of silica is also given.
A Critical Review Of Hypotheses On The Origin Of Vermiculations, A. Bini, M. Cavalli Gori, S. Gori
A Critical Review Of Hypotheses On The Origin Of Vermiculations, A. Bini, M. Cavalli Gori, S. Gori
International Journal of Speleology
Mud and clay vermiculations are irregular and discontinuous deposits of incoherent materials, almost ubiquitous. Found both inside and outside of caves, overlying limestone or other materials, they are formed from many substances (clay, mud, candle-black, colloidal silica, etc.). Also their shape dimensions vary greatly. The following genetical hypotheses have been proposed: fossil fillings; chemico-genetical deposition; biological formation; mechanical deposition from moving water or air; clay-layer drying process (Montoriol-Pous hypothesis); physicochemical deposition from drying liquid films. The last is proposed by the authors who, having discussed the various hypotheses, give many examples and the results of some experiments. They distinguish two …
Ostracodes Du Sud De La France 2. Pseudocandona Simililampadis N.Sp., Dan L. Danielopol
Ostracodes Du Sud De La France 2. Pseudocandona Simililampadis N.Sp., Dan L. Danielopol
International Journal of Speleology
The description of Pseudocandona simililampadis n. sp. is presented. The new species belongs to the group schellenbergi and has been found in the karstic system of the Vidourle river at Sauve (Gard).
Microflore Et Activité De Groupements Fonctionnels Dans Les Sédiments De Trois Grottes De I'Italie Centrale, A. Pasqualini, B. Fumanti, L. Visonà
Microflore Et Activité De Groupements Fonctionnels Dans Les Sédiments De Trois Grottes De I'Italie Centrale, A. Pasqualini, B. Fumanti, L. Visonà
International Journal of Speleology
A comparative study is presented of the microflora of sediments in three caves with different trophic characteristics. Quantitative and qualitative variations of microflora were investigated for one year by studying the total microflora and the activity of the nitrogen cycle functional groups. Data were compared with those of other works of previous authors. Results show that the quantity and kind of organic matter of sediment are most important factors regulating the abundance and activity of cavernicolous microflora. The experimental part of this paper is prefaced by a digest of investigations previously carried out on cavernicolous microflora and by a report …
Contribution À L'Étude Des Cavités Karstiques Du Djurdjura (Algérie). Description Morpho-Hydrogéologique Et Cadre Évolutif, Yves Quinif
International Journal of Speleology
In North-Africa, the karst of Djurdjura Mountains is important because it shows high-alpine characters. In others papers, we have studied shallow morphology and speleological explorations. Here, we describe the caves: morphology, qualitative hydrology and fillings. These cavities are replaced in their morpho-structural context. We make distinctions between kinds of cavities. Gulfs and resurgences characterize high-alpine karst which is actual. Other caves that have their opening at the middle of slopes are dry, disconnected of actual morphological context. They belong to past karstification phases. From the synthesis of those elements, we show that it is possible to use karstic data in …
Neue Ergebnisse Speläologischer Untersuchungen In Den Hainburger Bergen (Nö) Und Ihre Wissenschaftliche Bedeutung, Karl Mais
International Journal of Speleology
Since 1971 speleological and paleontological investigations have been carried out in the quarry “Hollitzer” which is in the Pfaffenberg near Bad Deutsch Altenburg (Hainburger Berge, Lower Austria). Evident karst phenomena are missing at the surface, but the existence of caves filled with sediments in the quarry show that the area is a fossil buried karst. A steady scientific survey allowed the study of the karstic phenomena without hindering the work in the quarry. Up to now more than 150 cavities have been discovered. Most of them seem to belong to a unique solutional system; corrasive forms are missing. Fossils (Gasteropoda, …
Un Batrachuperus Adulte Dans Une Grotte D'Iran Espèce Nouvelle?, M. Clergue-Gazeau, J. P. Farcy
Un Batrachuperus Adulte Dans Une Grotte D'Iran Espèce Nouvelle?, M. Clergue-Gazeau, J. P. Farcy
International Journal of Speleology
During a speleological exploration of a cave in Iran, a species of Urodele Hynobiidae was found. This Batrachian is either a new species of the genus Batrachuperus or an adult form of the species Batrachuperus persieus previously only described in its larval and juvenile forms. Certain observable differences suggest that it can be considered a new species. Observations on its feeding habits indicate that the presence of this periodic trogloxene in the cave is not “accidental”, but that it remains there for a long period during its life cycle.
Observations Sur Les Comportements De Lucifuga Subterranea Poey (Pisces, Ophidiidae), Poisson Cavernicole De Cuba, G. Thinès, M. Piquemal
Observations Sur Les Comportements De Lucifuga Subterranea Poey (Pisces, Ophidiidae), Poisson Cavernicole De Cuba, G. Thinès, M. Piquemal
International Journal of Speleology
The swimming behaviour and the sensory reactions of the blind Cuban cave fish Lucifuga subterranea Poey were studied on a single individual during a period of 6 months. Mechanical stimulation elicits but slight reactions. Gustatory substances in solution elicit fairly typical motor responses which are not followed by systematic exploration behaviour, the same being true for stimulations by odours of prey. The presence of moving prey provokes an oriented exploration with a slight plunging movement of the kind evidenced in other cave fishes. Actual seizing of the prey requires an active approach of the latter towards the anterior part of …
Fracturation Et Karstification D'Un Massif: L'Exemple De L'Azerou El Kebir (Algérie Du Nord), P. E. Coiffait, Y. Quinif
Fracturation Et Karstification D'Un Massif: L'Exemple De L'Azerou El Kebir (Algérie Du Nord), P. E. Coiffait, Y. Quinif
International Journal of Speleology
The fracturation of the sub-autochthonous massif of the Azerou el Kebir is not fundamentally different from that of the adjoining allochthonous massif - where the structures are due to an Alpine phase, known as the Atlas phase. As with all fractures, karstification only exploits certain of them, without having any linkage to their statistical importance, caves have developed following fractures which are qualitatively important, but are poorly represented quantitatively. The study of the karstification therefore, confirms his complementary to the structural analysis in order to elucidate the technical problems of fracturation in the region.
The Development Of Limestone Cave Systems In The Dimensions Of Length And Depth, Derek Clifford Ford, R. O. Ewers
The Development Of Limestone Cave Systems In The Dimensions Of Length And Depth, Derek Clifford Ford, R. O. Ewers
International Journal of Speleology
Karst caves are defined as solutional cavities 5-16 mm in diameter and discussion is limited to cases where such continuously extend to a surficial input or output or both. Three opposed sets of general genetic hypotheses (“the classical hypotheses”) have been presented for such caves, Arguing that the majority develop 1) in the vadose zone 2) in the phreatic zone 3) proximate and parallel to a watertable. It is contended here that vadose, phreatìc and watertable caves are all of common occurrence and may be linked in one genetic theory. A four state model is proposed in which ideal phreatic …
Adolph Schmidl (1802 - 1863) The Father Of Modern Speleology?, T. R. Shaw
Adolph Schmidl (1802 - 1863) The Father Of Modern Speleology?, T. R. Shaw
International Journal of Speleology
A. Adolf Schmidl (1802-1863) was the first person to regard speleology as a single coherent subject. Besides making important new explorations, he studied karst hydrology and underground meteorology and was also closely concerned with the work of others on cave fauna and flora. His publications ensured that his achievements were known to his successors, but his influence was less widespread than that of Martel who nevertheless called him “the real originator of speleology”.
Synthèse Bibliographique Sur La Toxicité Des Substances Fluorescentes Utilisées En Hydrologie, J. Molinari, J. Rochat
Synthèse Bibliographique Sur La Toxicité Des Substances Fluorescentes Utilisées En Hydrologie, J. Molinari, J. Rochat
International Journal of Speleology
This synthesis has been established from three recent studies and from a complementary bibliographical research. It resumes the names of fluorescent substances actually used or experimented as tracers in hydrology and draws attention to their uses and relative problems in their uses. The adjoining annex gives an exhaustive use of publications received on the subject (35 titles).
Niveaux De Base Actuels Dans Les Principaux Canyons Du Languedoc Oriental Et Des Plans De Provence, G. Fabre, J. Nicod
Niveaux De Base Actuels Dans Les Principaux Canyons Du Languedoc Oriental Et Des Plans De Provence, G. Fabre, J. Nicod
International Journal of Speleology
In a karstic country cut by a canyon in which runs an allogenic river, there are several base levels (karstic, fluvial...); chiefly if the limestones develop greatly under the bottom of the gorge. The difficulty of characterizing them appears in all the definitions given. From the example of the three most important canyons of the Eastern Bas Languedoc (South-East of France) and with the different geological controls (s.l.) one ascertains that at present: a) When an allogenic and surface river is perennial without important loss there is a total connection between fluvial level and karstic base level. b) When an …
Prime Osservazioni In Margine A Un'esperienza Di Concrezionamento Di Alabastri Calcarei In Ambiente Ipogeo, P. Forti, R. Casali, G. Pasini
Prime Osservazioni In Margine A Un'esperienza Di Concrezionamento Di Alabastri Calcarei In Ambiente Ipogeo, P. Forti, R. Casali, G. Pasini
International Journal of Speleology
Optical analysis of thin slides of cave fromations carried out by a number of researchers showed a fine structure consisting of a succession of double layers (thichness less than a fe tens of micron). In each two layer unit, one is thicker, transparent and composed of an assembly of calcite needle shaped crystals oriented perpendicularly to the layer: the other layer is opaque, cryptocrystalline or amorphous. According to some C-14 datings of archaeological remains covered by the formations each couple of layers would correspond to one year. In order to check this hypothesis an experiment was set up in the …
The Discovery Of Proteus-Eggs (Proteus Anguinus Laurenti, Amphibia) In Seminatural Conditions, B. Sket, F. Velkovrh
The Discovery Of Proteus-Eggs (Proteus Anguinus Laurenti, Amphibia) In Seminatural Conditions, B. Sket, F. Velkovrh
International Journal of Speleology
Proteus-eggs were found for the first time in the nature, drifted out of a karstic spring. They were obtained from the Vir Spring al Sticna, 30 km ESE of Ljubljana. The hydrological and faunistical data indicate that Proteus lays its eggs also in “unsheltered”, energetically rich groundwater habitats.
Martel's La France Ignorée: New Information From Two Post Cards To His Publisher, Trevor R. Shaw
Martel's La France Ignorée: New Information From Two Post Cards To His Publisher, Trevor R. Shaw
International Journal of Speleology
Two recently discovered post cards written by Martel to his publisher provide new information on the date he completed the manuscript of the first volume of La France ignorée and on the progress of its printing.
Observations Sur I'Écologie Et La Distribution Des Turbellariés Tricladides Dépigmentés Et Anophtalmes De Roumanie, L. Botosaneanu
Observations Sur I'Écologie Et La Distribution Des Turbellariés Tricladides Dépigmentés Et Anophtalmes De Roumanie, L. Botosaneanu
International Journal of Speleology
Twenty-two localities, where unpigmented and mostly blind tricladid turbellarians (Dendrocoelidae and Fonticola) were discovered by the author, are described in more or less detail. These animals are particularly well represented in Romania; the explanation is that they are expansive offshoots of a fauna formerly inhabiting the huge brackish or freshwater lakes which covered most of this country during the Neogene (and especially the Sarmatian). Different species are inhabitants of different particular habitats of the underground water realm, and the author distinguishes between species inhabiting cave waters, typical phreatobionts, hyporheic species and species living in springs or springbrooks. These species are …
Réponses Locomotrices Du Poisson Cavernicole Astyanax Jordani (Pisces, Characidae) À Des Signaux Périodiques Et Apériodiques De Lumière Et De Température, G. Thines, M. Weyers
Réponses Locomotrices Du Poisson Cavernicole Astyanax Jordani (Pisces, Characidae) À Des Signaux Périodiques Et Apériodiques De Lumière Et De Température, G. Thines, M. Weyers
International Journal of Speleology
The locomotory activity of adult cave fishes Astyanax jordani was recorded in isolation in the following light and temperature conditions: constant conditions (100 Lx - 20°C), in a light cycle (LD:11/11 -10 Lx -100 Lx) and in a temperature cycle (11/11; 17/20, 19/22, 20/23, 27/30 °C). All longitudinal time series extended for a minimum of 30 days. Results show: (1) That no circadian regulation appears in constant conditions; (2) that passive entrainment occurs in LD (Amplitude: 90 Lx) and in periodic temperature conditions (Amplitude: 3°C). The entrainment effect damps out and varies individually; (3) that the mean activity increases with …
A Note On The Speleo-Minerals In South Korea, N. Kashima, M. S. Suh, S. K. Pae
A Note On The Speleo-Minerals In South Korea, N. Kashima, M. S. Suh, S. K. Pae
International Journal of Speleology
Description of a total of nine minerals found in ten caves of the middle Eastern part of the Korean peninsula.
Notes Éco-Éthologiques Et Parasitologiques Sur Les Chiroptères Cavernicoles Du Shaba (Zaïre), M. Anciaux De Faveaux
Notes Éco-Éthologiques Et Parasitologiques Sur Les Chiroptères Cavernicoles Du Shaba (Zaïre), M. Anciaux De Faveaux
International Journal of Speleology
After a brief analysis of the elements of the cavernicolous microclimate in Shaba, the author emphasizes the possibility of relations between ecology and parasitism. He then reviews the 9 species of Chiroptera that live in the subterranean field in Shaba, pointing out their environmental habitat, behaviour and parasites.
A Perçu Sur La Composition, I'Origine Et La Formation De La Faune Cavernicole De La Stara Planina Occidentale (Bulgarie), Petar Beron
International Journal of Speleology
The karstic area between the rivers Timok and Vit has about 500 caves and pot-holes, more than 300 of them being the subject of the present study. In this area (called here Western Stara Planina) we have noted 63 species and subspecies of terrestrial troglobites and 17 species and subspecies of aquatic troglobites. The two Regions into which we split the area (region of Ogosta and Region of Iskar) are the richest in cave fauna of Bulgaria. This study deals with the particularities in the composition and the distribution of the different groups of terrestrial troglobites, and especially of such …
Studies Of The Cave Crayfish, Orconectes Inermis Inermis Cope (Decapoda, Cambaridae). Part Iv: Mark-Recapture Procedures For Estimating Population Size And Movements Of Individuals, Horton H. Hobbs Iii
Studies Of The Cave Crayfish, Orconectes Inermis Inermis Cope (Decapoda, Cambaridae). Part Iv: Mark-Recapture Procedures For Estimating Population Size And Movements Of Individuals, Horton H. Hobbs Iii
International Journal of Speleology
Several methods for permanently marking cavernicolous crayfishes were investigated prior to initiation of field work in Pless Cave, Lawrence County, Indiana. Internally injected ink complemented with external “painting” proved to be a most satisfactory tagging procedure. During the two-year study period 211 individuals of the troglobitic crayfish Orconectes inermis inermis Cope were marked; 96 tagged individuals were recaptured at least once, a 46% recapture rate. The population size was estimated to be 1586 +/- 79 (95% C.L.) over the 540 m subterranean stream study area and remained relatively stable during the period of 1970 to 1972. The home range of …
Variation Among Populations Of The Troglobitic Amphipod Crustacean Crangonyx Antennatus Packard Living In Different Habitats I. Morphology, Gary W. Dickson
Variation Among Populations Of The Troglobitic Amphipod Crustacean Crangonyx Antennatus Packard Living In Different Habitats I. Morphology, Gary W. Dickson
International Journal of Speleology
Populations of the troglobitic (i.e., obligatory cavernicole) amphipod Crangonyx antennatus living in two distinct aquatic habitats were examined for possible morphological variation. Collections were made seasonally for one year in six Lee Co., Virginia caves, three with mud-bottom pools and three with small gravel-bottom streams. Environmental parameters thought to influence population variation were recorded for each of the six caves. Body length of mature amphipods was found to be greater in the mud-bottom pool habitats, whereas stream amphipods possessed more first antennal segments per unit body length. Variation was also observed in integument coloration; stream amphipods were characterized by a …
Stenasellus Escolai N. Sp., Crustacea Isopoda Asellota Des Eaux Souterraines D'Espagne Méridionale, Guy Magniez
Stenasellus Escolai N. Sp., Crustacea Isopoda Asellota Des Eaux Souterraines D'Espagne Méridionale, Guy Magniez
International Journal of Speleology
This new species was captured in the phreatic waters of Guadalquivir valley, where it lives together with another, very small-sized Stenasellid: St. bragai Magniez, previously described. It belongs to the phyletic line of St. breuili Racovitza, which colonizes the subterranean waters of the Iberic peninsula.
Recherches Sur Les Ostracodes Entocytheridae. Données Sur Sphaeromicola Cebennica Juderthiei Nov. Ssp. Et Sphaeromicola Cirolanae Rioja, Dan L. Danielopol
Recherches Sur Les Ostracodes Entocytheridae. Données Sur Sphaeromicola Cebennica Juderthiei Nov. Ssp. Et Sphaeromicola Cirolanae Rioja, Dan L. Danielopol
International Journal of Speleology
Sphaeromicola cebennica juberthiei n. ssp., a cavernicolous ostracod found in the South of France (Système de Cent Fons and Avencas, Herault), is described here. The new subspecies differs from Sph. cebennica cebennica (found in a cave from Ardèche) by the smaller carapace and a reduced distal bristle on the ‘finger” of the male copulatory organ. The affinities and differences between the European Sphaeromicola and Sph. cirolanae from Mexico are discussed. The genus Sphaeromicola is divided into two groups of species: the group topsenti and the group cirolanae. Some observations on the mating process of Sph. Cebennica juberthiei are presented. …