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Featured articles from Cave & Karst Science Journals
Characterization of minothems at Libiola (NW Italy): morphological, mineralogical, and geochemical study, Carbone Cristina; Dinelli Enrico; De Waele Jo
Chemistry and Karst, White, William B.
The karst paradigm: changes, trends and perspectives, Klimchouk, Alexander
Long-term erosion rate measurements in gypsum caves of Sorbas (SE Spain) by the Micro-Erosion Meter method, Sanna, Laura; De Waele, Jo; Calaforra, José Maria; Forti, Paolo
The use of damaged speleothems and in situ fault displacement monitoring to characterise active tectonic structures: an example from Zapadni Cave, Czech Republic , Briestensky, Milos; Stemberk, Josef; Rowberry, Matt D.;
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;
NSS
Journal of Cave and Karst Studies, 2002, Vol 64, Issue 2, p. 140-144
Aggregate Protection Against Dehydration in Adult Females of the Cave Cricket
Yoder, J. A. , Hobbs, Iii, H. H. , Hazelton, M. C.
Abstract:
The role of aggregation in water conservation in adult female cave crickets, Hadenoecus cumberlandicus, in Laurel Cave (Carter Co., KY) was investigated. Grouped crickets retained water more effectively (water loss rates were lower) as densities increased from 1, 5, 10 and 20 crickets per cluster. Dry air currents (flow rate 43 mL/min) that passed over an aggregation of 20 eliminated the group effect with regard to water loss, suggesting that the mechanism operates by raising the relative humidity inside the cluster. Rapid water loss rate characterizes the water balance profile and is reflected by high activation energies for water loss and low quantities of cuticular lipid. There was no evidence for water vapor uptake. Natural gains and losses are high in H. cumberlandicus, and this agrees with their preference for the deep cave environment. Conversely, water turnover is lower for another trogloxenic cricket, Ceuthophilus stygius, that is less cave-adapted.
The role of aggregation in water conservation in adult female cave crickets, Hadenoecus cumberlandicus, in Laurel Cave (Carter Co., KY) was investigated. Grouped crickets retained water more effectively (water loss rates were lower) as densities increased from 1, 5, 10 and 20 crickets per cluster. Dry air currents (flow rate 43 mL/min) that passed over an aggregation of 20 eliminated the group effect with regard to water loss, suggesting that the mechanism operates by raising the relative humidity inside the cluster. Rapid water loss rate characterizes the water balance profile and is reflected by high activation energies for water loss and low quantities of cuticular lipid. There was no evidence for water vapor uptake. Natural gains and losses are high in H. cumberlandicus, and this agrees with their preference for the deep cave environment. Conversely, water turnover is lower for another trogloxenic cricket, Ceuthophilus stygius, that is less cave-adapted.