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السجلات المعروضة 93 -- 112 من 466
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Decline in oyster populations in traditional fishing grounds; is habitat damage by static fishing gear a contributory factor in ecosystem degradation?
( Elsevier , 2018 , Article)The territorial waters of Qatar once supported dense assemblages of the pearl oyster Pinctada radiata. The oysters settled on a patchy network of limestone platforms (hairãt) and provided a suite of ecosystem services to ... -
Decomposition rate and stabilization across six tundra vegetation types exposed to >20 years of warming
( Elsevier , 2020 , Article)© 2020 The Authors Aims: Litter decomposition is an important driver of soil carbon and nutrient cycling in nutrient-limited Arctic ecosystems. However, climate change is expected to induce changes that directly or indirectly ... -
Decreased soil moisture due to warming drives phylogenetic diversity and community transitions in the tundra
( IOP Publishing , 2021 , Other)Global warming leads to drastic changes in the diversity and structure of Arctic plant communities. Studies of functional diversity within the Arctic tundra biome have improved our understanding of plant responses to ... -
Deep behavioral impairment in the pearl oyster Pinctada radiata exposed to anthropogenic noise and light stress
( Frontiers Media SA , 2023 , Article)The pearl oyster Pinctada radiata is an iconic species in the Arabian Gulf, which is one of the ecosystems most at risk in the world because of the multiple sources of pollution it faces. Alongside chemical pollution, the ... -
Deep eutectic solvents as alternative green solvents for the efficient desulfurization of liquid fuel: A comprehensive review
( Elsevier , 2021 , Article Review)Increase in the requirement of energy consumption has been followed by a consistent rise in sulfur emission with economic and health issues. Moreover, it considerably decreases the efficacy of developed emission control ... -
Detection and assessment of marine litter in an uninhabited island, Arabian Gulf: A case study with conventional and machine learning approaches
( Elsevier , 2022 , Article)In 2018, the Ministry of Municipality and Environment, Qatar removed 90 t of marine litter (ML) from the Ras Rakan Island (RRI), a remote uninhabited island in the Arabian Gulf (hereinafter referred to as Gulf). To identify ... -
Detection of Wakashio oil spill off Mauritius using Sentinel-1 and 2 data: Capability of sensors, image transformation methods and mapping
( Elsevier , 2021 , Article)Oil spill incidents contaminate water bodies, and damage the coastal and marine environment including coral reefs and mangroves, and therefore, monitoring the oil spills is highly important. This study discriminates the ... -
Determination of total flavonoid content by aluminum chloride assay: A critical evaluation
( Elsevier , 2021 , Article)Flavonoids are important natural bioactive compounds. Quantitation of total flavonoid content (TFC) is widely performed using the aluminum chloride colorimetric assay against a flavonoid standard assuming equal responses ... -
Developing common protocols to measure tundra herbivory across spatial scales
( NRC Research Press , 2021 , Article)Understanding and predicting large-scale ecological responses to global environmental change requires comparative studies across geographic scales with coordinated efforts and standardized methodologies. We designed, applied ... -
Development of a liquid chromatography-quadrupole-time-of-flight-mass spectrometry based method for the targeted and suspect screening of contaminants in the pearl oyster Pinctada imbricata radiata
( Elsevier Ltd , 2019 , Article)An analytical method was developed for the target and suspect screenings of contaminants in pearl oyster tissues. - 2019 Elsevier LtdA rapid method based on solvent extraction followed by direct injection in liquid ... -
Diagenetic Alterations of the Outcropped Lower Triassic Mahil Formation (KS-1 Khuff-Equivalent) in the Oman Mountains, North Oman
( Springer Nature , 2023 , Conference Paper)The Lower Triassic Mahil Formation in North Oman is the outcrop time-equivalents to the hydrocarbon-bearing reservoir, Upper Khuff Formation (referred to as KS-1 cycle). The studied sections of the KS-1 cycle in the ... -
Discovery of new genomic regions and candidate genes implicated in the natural variation of barley peduncle length and plant height
( Springer Nature , 2024 , Article)The cereal plant barley (Hordeum vulgare) has high nutritional content and special characteristics that allow it to withstand adverse weather conditions. The peduncle’s developmental properties under dry (drought and heat) ... -
Distribution and environmental geochemical indices of mercury in tar contaminated beaches along the coast of Qatar
( Elsevier , 2022 , Article)The current study aimed to gauge total mercury (THg) concentration and the environmental geochemical indices in tarmat contaminated sediments and test their presence in targeted coastal species. Layers of hard asphalt-like ... -
Distribution, characterization and weathering of tarmats along the west coast of Qatar
( Qatar University Press , 2021 , Poster)Oil residue in the form of tarmat (TM) deposited on the coast of Arabian Gulf countries is a major environmental concern. In this study, the current TM pollution trend along the west coast of Qatar has been assessed and ... -
Distribution, pollution, and human health risks of persistent and potentially toxic elements in the sediments around Hainan Island, China
( Elsevier , 2022 , Article)Human activities have changed the global concentration of potentially toxic elements (PTEs) and significantly altered the marine ecosystem. Little is known about the concentrations of these PTEs around Hainan Island in ... -
Divergent changes of the elevational synchronicity in vegetation spring phenology in North China from 2001 to 2017 in connection with variations in chilling
( Royal Meteorological Society , 2021 , Article)Mountain ecosystems are sensitive to climate change, and vegetation phenology provides one of the best signals to exemplify ecosystem responses to climate change. Vegetation phenology of mountain ecosystems is usually ... -
Diversity and Zonation of Benthic Amphipod Crustaceans Affected by the Mississippi Submarine Canyon in the Northern Gulf of Mexico
( Frontiers Media S.A. , 2022 , Article)Amphipod crustacean diversity and zonation are described from the large Mississippi Canyon that extends from the continental shelf across the entire continental margin. Benthic amphipods were sampled on four cruises from ... -
Diversity of arbuscular mycorrhizal fungi and its chemical drivers across dryland habitats
( Springer , 2021 , Article)Qatar is largely characterized by a hyper-arid climate and low soil fertility which create a stressful soil environment for arbuscular mycorrhizal (AM) fungi. In a study of AM fungal communities and their relationship with ... -
Diversity of benthic macrofauna and physical parameters of sediments in natural mangroves and in afforested mangroves three decades after compensatory planting
( Springer , 2018 , Article)Mangroves in the Arabian Gulf are under pressure from land use change, leading to compensatory planting at sites without natural mangroves. In this study, we examine the potential long-term success of this form of ... -
Do changes in current flow as a result of arrays of tidal turbines have an effect on benthic communities?
( Public Library of Science , 2016 , Article)Arrays of tidal energy converters have the potential to provide clean renewable energy for future generations. Benthic communities may, however, be affected by changes in current speeds resulting from arrays of tidal ...