Sabkha deposits in the geologic record are commonly used to interpret the environmental conditions of deposition. Implicit in this use is the assumption that the solute system is chemically closed, that is, the authigenic minerals represent the composition of the fluids in their environment of origin. Thermodynamic and mass-balance calculations based on measurements of water and solute flux of ...

The present study focuses on the past (1985) and current (2018) status of the Naama’s Sabkha, particularly its salinity, vegetation, and water status. The acquired results will be useful for the preservation of Sabkha biodiversity. The representative sampling allowed us to make 136 soil samples over two depths: topsoil (0-4 cm) and down soil (4-30 cm) layers. The salinity analyses revealed that...

Citation: Al Disi ZA, Jaoua S, Bontognali TRR, Attia ESM, Al-Kuwari HAAS and Zouari N (2017) Evidence of a Role for Aerobic Bacteria in High Magnesium Carbonate Formation in the Evaporitic Environment of Dohat Faishakh Sabkha in Qatar. Front. Environ. Sci. 5:1. doi: 10.3389/fenvs.2017.00001 Evidence of a Role for Aerobic Bacteria in High Magnesium Carbonate Formation in the Evaporitic Environme...

The coastal sabkha in Ras Gemsa, Red Sea coast with its colonizing microbial mats and biofilms was investigated. The sabkha sediments consist mainly of terrigenous siliciclastic material accompanied by the development of evaporites. Halite serves as a good conduit for light and reduces the effect of intensive harmful solar radiation, which allows microbial mats to survive and flourish. The micr...

The characterization of minerals and biogeological deposits in a terrestrial Arabian sabkha has a direct relevance for the exploration of Mars since the discovery by the NASA rovers Spirit and Opportunity of evaporate minerals on Mars that could have arisen from aquifers and subsurface water movement. The recognition of carbonates and sulphates in Gusev Crater has afforded an additional impetus...

Strain EB01(T) sp. nov. is the type strain of Bacillus massilioalgeriensis, a new species within the genus Bacillus. This strain, whose genome is described here, was isolated from sediment sample of the hypersaline lake Ezzemoul sabkha in northeastern Algeria. B. massilioalgeriensis is a facultative anaerobic Gram-positive bacillus. Here we describe the features of this organism, together with ...

In Algeria scorpion envenomation represents a real public health problem with a population at risk of scorpion stings estimated at 68% of the national population. A total of 903, 461 scorpion sting cases and 1996 deaths were recorded by health services between 1991 and 2012. The physical-geographic and climate conditions make the province of Naama a conducive environment for scorpion species an...

The current study highlights some knowledge on the diversity and structure of insect communities and trophic groups living in Sabkha Djendli (semi-arid area of Northeastern Algeria). The entomofauna was monthly sampled from March to November 2006 using pitfall traps at eight sites located at the vicinity of the Sabkha. Structural and diversity parameters (species richness, Shannon index, evenne...

A cross-sectional survey of ticks infesting sheep was conducted in Sennar State, Sudan. A total body collection of ticks was carried out at five localities Sennar town, Singa, Dinder, Abu Naama and Um Banein on two types of Desert sheep (Watish and Ashgar) on two farms at each locality at two monthly intervals for one year starting July 2002 to May 2003. Four tick genera and eight species were ...

O presente texto trata-se de uma recensão da obra Kafka's Zoopoetics: Beyond the Human-Animal Barrier, autoria Naama HarelMichigan e publicada pela University of Michigan Press, em 2020. ORCIDhttp://orcid.org/0000-0002-2711-4855