Optical scintillation measurements in a desert environment II: retroreflector links

2011 ◽  
Author(s):  
W. S. Rabinovich ◽  
R. Mahon ◽  
C. I. Moore ◽  
M. S. Ferraro ◽  
M. R. Suite ◽  
...  
Keyword(s):  
Desert Environment ◽  
Optical Scintillation

Optical scintillation measurements in a desert environment IV: simulated effects of scintillation on communications links

2011 ◽  
Author(s):  
Michele R. Suite ◽  
W. S. Rabinovich ◽  
Rita Mahon ◽  
Christopher Moore ◽  
Mike Ferraro ◽  
...  
Keyword(s):  
Desert Environment ◽  
Optical Scintillation

Optical scintillation measurements in a desert environment I: direct link ranges of 2 to 24 km

2011 ◽  
Author(s):  
Rita Mahon ◽  
Christopher I. Moore ◽  
Mike S. Ferraro ◽  
William S. Rabinovich ◽  
Michele R. Suite
Keyword(s):  
Direct Link ◽  
Desert Environment ◽  
Optical Scintillation

Monitoring agricultural water in the desert environment of New Valley Governorate for sustainable agricultural development: a case study of Kharga

2021 ◽  
Vol 6 (2) ◽  
Author(s):  
Mohammed A. El-Shirbeny ◽  
Abdelraouf M. Ali ◽  
Ghada A. Khdery ◽  
Nasser H. Saleh ◽  
Nagwan M. Afify ◽  
...  
Keyword(s):  
Agricultural Development ◽  
Agricultural Water ◽  
Desert Environment

Habitat use and behaviour of cattle in a heterogeneous desert environment in central Australia

2012 ◽  
Vol 34 (3) ◽  
pp. 319 ◽  
Author(s):  
Anke S. K. Frank ◽  
Chris R. Dickman ◽  
Glenda M. Wardle
Keyword(s):  
Habitat Use ◽  
Arid Environments ◽  
Desert Environment ◽  
Point Location ◽  
Dune System ◽  
Grazing Impacts ◽  
Water Point ◽  
Resource Poor ◽  
Central Australia ◽  
Simpson Desert

The activities of livestock in arid environments typically centre on watering points, with grazing impacts often predicted to decrease uniformly, as radial piospheres, with distance from water. In patchy desert environments, however, the spatial distribution of grazing impacts is more difficult to predict. In this study sightings and dung transects are used to identify preferred cattle habitats in the heterogeneous dune system of the Simpson Desert, central Australia. The importance of watering points as foci for cattle activity was confirmed and it was shown that patchily distributed gidgee woodland, which comprises only 16% of the desert environment, is the most heavily used habitat for cattle away from water and provides critical forage and shade resources. By contrast, dune swales and sides, which are dominated by shade- and forage-deficient spinifex grassland and comprise >70% of the available habitat, were less utilised. These results suggest that habitat use by cattle is influenced jointly by water point location and by the dispersion of woodland patches in a resource-poor matrix. The findings were used to build a modified conceptual model of cattle habitat use which was compared with an original piosphere model, and the consequences for wildlife in environments where the model applies are discussed.

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