Results 251 to 260 of about 1,717 (280)

Cave visitation by temperate zone bats: effects of climatic factors

Journal of Zoology, 2010
We investigated the effects of climatic variables on the flight activity of bats at the entrance of a hibernaculum (Kateřinska cave, Moravian Karst, CZ). Activity was recorded automatically using a double infrared-light logging system. Climatic factors influenced not only seasonal but also night-to-night and overnight patterns in cave visitation.
H. Berková, J. Zukal
openaire   +1 more source

Hexactinellid cave, a unique deep-sea habitat in the scuba zone

Deep Sea Research Part I: Oceanographic Research Papers, 1994
Abstract Deep-sea organisms have colonized an unusual Mediterranean cave 18–24 m below the sea surface, in which the entrapment of a cold water mass results in stable temperature conditions throughout the year. These conditions, together with lack of light and limited food resources, approximate those of the deep Mediterranean.
Jean Vacelet, Nicole Boury-Esnault, Jean-Georges Harmelin   +2 more
openaire   +1 more source

Topoclimatic Zones and Ice Dynamics in the Caves of the Northern Yukon, Canada

ARCTIC, 1988
In the upper basin of the Porcupine River, the subhorizontal caves of Bear Cave and Tsi-it-toh-Choh mountains are characterized by a very rich ice zone. The authors propose a model for the build-up of ice based on the formation of hexagonal ice sublimation crystals on the cold walls of underground passages.
B. Lauriol, L. Carrier, P. Thibaudeau
openaire   +1 more source

Prediction of Porosity and Permeability of Caved Zone in Longwall Gobs

Transport in Porous Media, 2009
The porosity and permeability of the caved zone (gob) in a longwall operation impact many ventilation and methane control related issues, such as air leakage into the gob, the onset of spontaneous combustion, methane and air flow patterns in the gob, and the interaction of gob gas ventholes with the mining environment.
openaire   +1 more source

Diversity of Copepoda (Crustacea) in the Unsaturated Zone of Karstic Caves of Slovenia

2004
The subclass Copepoda is divided into ten orders, within which around 12,000 taxa are known at present. Some species are external parasites or live in symbiosis with other organisms, and others are free-living (Huys & Boxshall, 1991). Six orders are composed entirely of free-living representatives, occupying a diversity of habitats from the deep-sea ...
Anton Brancelj, Tanja Pipan
openaire   +1 more source

The distribution of cave twilight‐zone spiders depends on microclimatic features and trophic supply

Invertebrate Biology, 2015
AbstractCaves are not closed systems. Trophic dynamics in these habitats are driven by resource availability, and species that move between cave and outdoor environments may play a major role in resource availability. Spiders are among the most abundant invertebrates in caves; however, very few studies have tested factors hypothesized to affect the ...
R. Manenti, E. Lunghi, G.F. Ficetola
openaire   +3 more sources

DETERMINATIONOF ACTIVE CAVING ZONES OF AT THE ENDS OF THE LONGWALLS

JOURNAL of Donetsk mining institute, 2017
S. Nehrii, I. Sakhno, T. Nehrii, V. Kolomiiets   +3 more
openaire   +1 more source

Boundary distribution of top-coal limit-equilibrium zone in fully mechanized caving in steeply dipping coal seams

Geomatics, Natural Hazards and Risk, 2021
Haifei Lin, Shenghu Luo
exaly  

Aquifer structures: fracture zones and caves

2006
Kord Ernstson, Reinhard Kirsch
openaire   +1 more source

Experimental Study on Compaction Law of Rock Mass in the Caving Zone Under the Grouting Pressure of Overburden Isolation Grouting Filling

Geotechnical and Geological Engineering, 2022
Dayang Xuan, Xuan Dayang
exaly