Wildfire does not affect the dung beetle diversity of high-altitude Mediterranean habitats

2021 ◽  
Author(s):  
Ettore Palusci ◽  
Cristina Mantoni ◽  
Giovanni Strona ◽  
Simone Fattorini
Keyword(s):  
High Altitude ◽  
Dung Beetle ◽  
Mediterranean Habitats

Temporal coexistence of dung-dweller and soil-digger dung beetles (Coleoptera, Scarabaeoidea) in contrasting Mediterranean habitats

2008 ◽  
Vol 98 (3) ◽  
pp. 303-316 ◽  
Author(s):  
P. Jay-Robert ◽  
F. Errouissi ◽  
J.P. Lumaret
Keyword(s):  
Dung Beetle ◽  
High Elevation ◽  
Cold Season ◽  
Dung Beetles ◽  
Activity Period ◽  
Summer Drought ◽  
Resistant Species ◽  
Mediterranean Habitats ◽  
Beetle Assemblages ◽  
Biogeographical Region

AbstractThe western part of the Mediterranean basin is a transitional biogeographical region for the distribution of the representatives of the main guilds of dung beetles; towards the south, Aphodiinae (dung-dwellers) become scarce, whereas northwards Scarabaeinae (soil-diggers) progressively disappear. The number of species in local dung beetle assemblages is enhanced by this double faunistic contribution. Annual dung beetle assemblages were sampled in two sub-Mediterranean sites, which differed by 600 m in elevation, in order to determine the phenological dynamics related to the way of using dung (dung-dwellers/Aphodiinae vs. soil-diggers/Scarabaeinae and Geotrupinae). Aphodiids were active all year round, although they were affected by summer drought and, at high elevation, by the length of the cold season. This reduced activity was related to an impoverishment of Aphodiinae and to reduced temporal segregation between species. In contrast, soil-diggers were not active all year round and showed different species assemblages in the two sites. An extension of the activity period of these beetles was observed due to the occurrence of cold resistant species at high elevation. Our results suggested that the occurrence of soil-diggers seemingly did not affect the seasonality of dung-dwellers; their local abundance showed no negative correlation and, most importantly, phenological differences between dung-dwellers were always significantly higher than the seasonal differences between dwellers and diggers.

Contrast of Filament Bright Rims

1994 ◽  
Vol 144 ◽  
pp. 365-367
Author(s):  
E. V. Kononovich ◽  
O. B. Smirnova ◽  
P. Heinzel ◽  
P. Kotrč
Keyword(s):  
High Altitude ◽  
Line Profile ◽  
Line Center ◽  
Magnetic Structures ◽  
The Mean

AbstractThe Hα filtergrams obtained at Tjan-Shan High Altitude Observatory near Alma-Ata (Moscow University Station) were measured in order to specify the bright rims contrast at different points along the line profile (0.0; ± 0.25; ± 0.5; ± 0.75 and ± 1.0 Å). The mean contrast value in the line center is about 25 percent. The bright rims interpretation as the bases of magnetic structures supporting the filaments is suggested.

Clean Electron Microscope Substrate Films Used for Micrometeorite Collection and Study

1967 ◽  
Vol 25 ◽  
pp. 366-367
Author(s):  
D. M. Davies ◽  
R. Kemner ◽  
E. F. Fullam
Keyword(s):  
Thin Film ◽  
Electron Microscope ◽  
High Altitude ◽  
Amyl Acetate ◽  
Temperature Variations ◽  
Film Forming ◽  
Film Specimen ◽  
Particulate Contaminants

All serious electron microscopists at one time or another have been concerned with the cleanliness and freedom from artifacts of thin film specimen support substrates. This is particularly important where there are relatively few particles of a sample to be found for study, as in the case of micrometeorite collections. For the deposition of such celestial garbage through the use of balloons, rockets, and aircraft, the thin film substrates must have not only all the attributes necessary for use in the electron microscope, but also be able to withstand rather wide temperature variations at high altitude, vibration and shock inherent in the collection vehicle's operation and occasionally an unscheduled violent landing.Nitrocellulose has been selected as a film forming material that meets these requirements yet lends itself to a relatively simple clean-up procedure to remove particulate contaminants. A 1% nitrocellulose solution is prepared by dissolving “Parlodion” in redistilled amyl acetate from which all moisture has been removed.

New Drugs Scale High-Altitude Pulmonary Edema

2005 ◽  
Vol 38 (19) ◽  
pp. 14
Author(s):  
BRUCE JANCIN
Keyword(s):  
Pulmonary Edema ◽  
High Altitude ◽  
New Drugs ◽  
High Altitude Pulmonary Edema

Dynamic electrocardiography at high altitude

1966 ◽  
Vol 118 (2) ◽  
pp. 132-138 ◽  
Author(s):  
J. S. Sanders
Keyword(s):  
High Altitude

Development of techniques for the evaluation of high altitude pressure suits.

1959 ◽  
Author(s):  
Renato Contini ◽  
Rudolfs Drillis ◽  
Lawrence Slote
Keyword(s):  
High Altitude

Women at Altitude: Effect of Menstrual-Cycle Phase on Acute Mountain Sickness During Deployment to High Altitude Terrain

2001 ◽  
Author(s):  
Paul B. Rock ◽  
Stephen R. Muza ◽  
Charles S. Fulco ◽  
Barry Braun ◽  
Stacy Zamudio ◽  
...  
Keyword(s):  
Menstrual Cycle ◽  
High Altitude ◽  
Acute Mountain Sickness ◽  
Cycle Phase ◽  
Menstrual Cycle Phase ◽  
Altitude Effect ◽  
Mountain Sickness
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