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Arish, Egypt

Elamin A.,Conservation Center
International Journal of Conservation Science | Year: 2015

Late Period ibis mummies housed in the Grand Egyptian Museum (GEM) in Cairo, Egypt was selected for this study. In scholarly publications, most authors have dealt with microorganisms, while few have concerned themselves in depth with the effect of insects on the mummies. The mummies showed different signs of deterioration and degradation caused by insects, such as missing and gaps in the linen wrappings, and accumulated dust. This study aims to discuss the significance of insects and the changes they affected to the mummies. To achieve these goals, the mummies were examined by visual assessment and stereo microscope. The following insects could be identified: Attagenus unicolor, Gibbium psylloides. Source

Greater understanding of how policies are restricting extensive pastoral production is needed, given the importance of livestock mobility to both social and environmental health in drylands. In southern Africa, communal pastoral rangelands continue to be enclosed and dissected by large-scale barrier fences designed to control livestock diseases and protect lucrative livestock export agreements. This paper looks at how these veterinary cordon fences are changing pastoral systems in Botswana, particularly patterns of resource access and livestock mobility. The results show how overall consensus of opinion towards fencing among pastoralists is positive; fences do restrict resource access yet on balance herding demands are reduced and livestock security improved. However, a minority of marginalised groups recognise that fencing restricts risk management strategies and increases competition for key resources, raising concern over more widespread social differentiation and increased vulnerability at the regional level. The paper demonstrates why a closer examination of the trade-offs and consequences associated with animal health policy options in Africa is needed, particularly to determine policy-marketing pathways that allow more flexible and opportunistic resource access within communal pastoral areas. © 2011, McGahey; licensee Springer. Source

Maputla N.W.,Conservation Center | Maputla N.W.,University of Pretoria | Chimimba C.T.,University of Pretoria | Ferreira S.M.,Scientific Services
African Journal of Ecology | Year: 2013

Estimating large carnivore abundance can be challenging. A biased leopard (Panthera pardus) population survey was conducted in the N'wanetsi concession in the Kruger National Park (KNP), South Africa, using motion-sensitive camera traps from April to August 2008. Survey effort included 88 trapping occasions and 586 trap days. The survey yielded 24 leopard photographs, comprising fourteen adults of eleven males and three females. The capture rate was determined to be 24.4 trap days per leopard. Estimates of population abundance stabilized at approximately 500 trap days. Precision of population estimates began to stabilize after 378 trap days. We estimated that there were nineteen leopards in an area of 150 km2. Leopard density was estimated at 12.7 leopards per 100 km2. We explore the possibility of employing the methods used in this study to survey the leopard population in the KNP and surrounding areas. © 2013 John Wiley & Sons Ltd. Source

Khamis A.,Conservation Center | Saleh M.M.,Cairo University | Awad M.I.,Cairo University | El-Anadouli B.E.,Cairo University
Corrosion Science | Year: 2013

The synergistic effect of N-hexadecylpyridinium bromide (PyC16Br) and different sodium halides on the corrosion of mild steel in 0.5M H2SO4 solution has been investigated using electrochemical methods, X-ray diffraction (XRD) and scanning electron microscope (SEM). Experimental results showed that the protection efficiency (Picor) of PyC16Br improved at either considerable high concentration near its critical micelle concentration (CMC) or in the presence of the different halides with different extents. The synergism parameter (Sθ) is found to be greater than unity indicating high Picor. Corrosion products phases and surface morphology were studied using XRD and SEM, respectively. © 2013 Elsevier Ltd. Source

News Article | September 1, 2016
Site: http://www.sciencedaily.com/news/

A team of wildlife experts has analyzed the effect of habitat quality on the survival and dispersal of released desert tortoises. Juvenile tortoises used in this study originated from eggs produced by females housed at the Desert Tortoise Conservation Center in Las Vegas.

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