Browsing Biological & Environmental Sciences by Title
Now showing items 346-365 of 915
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Examining the Extinction of the Barbary Lion and Its Implications for Felid Conservation
( Public Library of Science , 2013 , Article)Estimations of species extinction dates are rarely definitive, yet declarations of extinction or extirpation are important as they define when conservation efforts may cease. Erroneous declarations of extinctions not only ... -
Expanding or shrinking? range shifts in wild ungulates under climate change in Pamir-Karakoram mountains, Pakistan
( Public Library of Science , 2021 , Article)Climate change is expected to impact a large number of organisms in many ecosystems, including several threatened mammals. A better understanding of climate impacts on species can make conservation efforts more effective. ... -
Expansion of fisheries in Qatar (1980-1992): Growth of an artisanal fleet and closure of a trawling company
( Elsevier Science B. V. , 1995 , Article)Total fish landings in Qatar increased from 1736 t per annum in 1980 to 7845 t in 1992. Ninetythree percent of this growth was due to an increase in the artisanal fleet exemplified by increases in: (i) numbers of vessels ... -
Experimental measurements and modelling of viscosity and density of calcium and potassium chlorides ternary solutions
( Nature Research , 2020 , Article)Measured viscosity and density data for ternary aqueous solutions of CaCl2 and KCl are presented at temperatures between 293 and 323�K with 5�K increment. A modified Jones?Dole was introduced by adding extra terms and ... -
Exploring Sheraoh Island at South-Eastern Qatar: First Distributional Records of Some Inland and Offshore Biota with Annotated Checklist
( OMICS International , 2016 , Article)Sheraoh island is the most remote among Qatari islands, nearly 73.5 km south-eastern of the mainland of the peninsula. In March 2010, a preliminary general survey of the species was conducted. Observations were made ... -
Exploring strategies to enhance microalgae nutritional quality for functional poultry-sourced food products
( Elsevier , 2023 , Article)Microalgae have emerged as a promising feedstock for the poultry feed industry due to their high nutritional potential, containing essential polyunsaturated fatty acids, essential amino acids, vitamins, and other high-value ... -
Exploring the compass of potential changes induced by climate warming in plant communities
( Elsevier B.V. , 2017 , Article)New models are required to predict the impacts of future climate change on biodiversity. A move must be made away from individual models of single species toward approaches with synergistically interacting species. The ... -
Exploring the dynamics of algae-associated microbiome during the scale-up process of Tetraselmis sp. microalgae: A metagenomics approach
( Elsevier , 2023 , Article)Microalgae have become a key source of valuable compounds, promoting commercial scale applications. However, biological contamination is one of the most critical problems associated with large scale algal production, ... -
Expression of the miR-9-5p, miR-125b-5p and its target gene NFKB1 and TRAF6 in childhood-onset systemic lupus erythematosus (cSLE)
( Taylor and Francis , 2022 , Article)Childhood- onset systemic lupus erythematosus (cSLE) is a multisystem inflammatory disease that can lead to severe clinical conditions resulting in early comorbidities. Several genetic, environmental, and immunological ... -
Expression Patterns Of Genes Encoding Antioxidative Enzymes In Date Palm(phoenix Dactylifera) In Response To Salinity Stress
( Hamad bin Khalifa University Press (HBKU Press) , 2014 , Conference Paper)Background Salinity is one of the major abiotic stresses threatening crop productivity worldwide. Plants exposed to severe salinity suffer ionic toxicities, osmotic stress and oxidative damage that lead to inhibition of ... -
Extracellular matrix (ECM)
( Springer Netherlands , 2012 , Book chapter)Summary: The region of space at the periphery of cyanobacterial cells is the interface between the environment and intracellular processes. This metaspace may include a structure appressed to the outer wall and membrane, ... -
Feeding Behavior of Coralliophila sp. on Corals Affected by Caribbean Ciliate Infection (CCI): A New Possible Vector?
( MDPI , 2022 , Article)Coral reefs in the Caribbean are known to be affected by many coral diseases, yet the ecology and etiology of most diseases remain understudied. The Caribbean ciliate infection (CCI) caused by ciliates belonging to the ... -
First genotoxicity assessment of marine environment in Qatar using the local Pearl oyster Pinctada radiata
( Elsevier , 2017 , Article)The Arabian Gulf countries’ marine environment has been subjected to increasing industrial development and anthropogenic pressure, leading to the growing introduction of contaminants into the marine environment, with a ... -
First Impact Assessment of Genotoxic Components in the Qatari Marine Environment
( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)The Arabian Gulf is a semi-enclosed sea with very high evaporation and low discharge rates resulting in extreme saline and thermal conditions. Additionally the system is characterized by a weak hydrodynamic flushing resulting ... -
First jellyfish records for Qatar and further notes on Scyphomedusae species from the Arabian Gulf (Cnidaria, Scyphozoa)
( Cambridge University Press , 2023 , Article)This study focused on a jellyfish monitoring and sampling programme along the eastern Qatar seawaters and reports the first jellyfish records for the Qatar pelagic ecosystem and the occurrence of three scyphozoans: the ... -
A first look at whale sharks in Hawaiian waters: Using citizen science to study the world's largest fish, Rhincodon typus
( John Wiley and Sons Ltd , 2023 , Article)The world's largest fish, the whale shark (Rhincodon typus), is a circum-tropically distributed and globally endangered species, that is widely studied at predictable aggregation sites. The main Hawaiian Islands are not ... -
First record of microsporedean and myxosporeans (Protozoa) infecting some Arabian Gulf fish off the coasts of Emirates and Qatar with a description Myxobolus arabicus n.sp
( Arabian Gulf University , 2002 , Article)During a comprehensive survey carried out on helminth parasites of Arabian Gulf fishes mainly from the coasts of the Emirates and Qatar, two microsporeans and three myxosporeans Protozoa were reported and described for the ... -
FIRST RECORD OF SOME AQUATIC FAUNA COLLECTED FROM QATARI INLAND WATERS WITH REFERENCE TO ARABIAN PENINSULA
( International Journal of Current Research , 2016 , Article)One of the man-made wetland fauna from September 2010 up to June 2013 during random intervals. The investigations have revealed 24 species of macroinvertebrates: one Rotifer, 3 gastropods, one Notostracan, 2 Ostracods, 2 ... -
First report of some adult mosquitoes captured by CDC gravid traps from North-Eastern Qatar
( Elsevier , 2016 , Article)ObjectiveTo report six species of female mosquitoes caught in CDC gravid traps for the first time in Qatar. MethodsFive traps were installed in Al-Khor community, north-eastern Qatar during the outbreak season between ... -
First report of Thielaviopsis punctulata causing black scorch disease on date palm in Qatar
( American Phytopathological Society , 2014 , Article)Ceratocystis radicicola (anamorph: Thielaviopsis paradoxa) was reported as an economically important pathogen causing serious diseases on date palm such as rhizosis (2) and black scorch (3) or as an associated pathogen ...