Browsing Environmental Science Center by Title

Now showing items 35-54 of 402

    • Benchmarking plant diversity of Palaearctic grasslands and other open habitats 

      Biurrun, Idoia; Pielech, Remigiusz; Dembicz, Iwona; Gillet, François; Kozub, Łukasz; ... more authors ( Wiley , 2021 , Article)
      Aims Understanding fine-grain diversity patterns across large spatial extents is fundamental for macroecological research and biodiversity conservation. Using the GrassPlot database, we provide benchmarks of fine-grain ...

    • The benthic sea-silk-thread displacement of a sessile bivalve, Pinctada imbricata radiata (Leach, 1819) in the Arabian-Persian Gulf 

      Giraldes, Bruno Welter; Leitão, Alexandra; Smyth, David ( Public Library of Science , 2019 , Article)
      A number of molluscs within the Class Bivalvia are defined by their ability to secrete fine silk like threads known as byssus which are used to anchor themselves to solid substrates. With relatively few exceptions the ...

    • Benthic surveys of the historic pearl oyster beds of Qatar reveal a dramatic ecological change 

      Smyth, D.; Al-Maslamani, I.; Chatting, M.; Giraldes, B. ( Elsevier , 2016 , Article)
      The study aimed to confirm the presence of historic oyster banks of Qatar and code the biotopes present. The research also collated historical records and scientific publications to create a timeline of fishery activity. ...

    • The biological effects of chemical contaminants in the Arabian/Persian Gulf: A review 

      Khatir, Zenaba; Leitão, Alexandra; Lyons, Brett P. ( Elsevier , 2020 , Article)
      © 2019 Elsevier B.V. The Arabian Gulf is a shallow sea naturally exposed to extreme conditions of temperature and salinity due to its location, semi-enclosed nature, bathymetry and restricted circulation. Compared to open ...

    • Biomass loss in village ecosystems in Western Himalaya due to wild monkey interactions: A case study 

      Sushma, Rawat; Nagar, Bhuvnesh; Adhikari, Bhupendra Singh; Pandey, Rajiv; Alatalo, Juha M. ( Elsevier , 2021 , Article)
      Conservation faces the challenge of reconciling human activities with the simultaneous presence of wildlife in cultivated landscapes. In a study carried out in two villages of Pauri Garhwal, Western Himalaya, an attempt ...

    • Bryophyte cover and richness decline after 18 years of experimental warming in alpine Sweden. 

      Alatalo, Juha M; Jägerbrand, Annika K; Erfanian, Mohammad Bagher; Chen, Shengbin; Sun, Shou-Qin; ... more authors ( Oxford University Press , 2020 , Article)
      Climate change is expected to affect alpine and Arctic tundra communities. Most previous long-term studies have focused on impacts on vascular plants, this study examined impacts of long-term warming on bryophyte communities. ...

    • BTEX, nitrogen oxides, ammonia and ozone concentrations at traffic influenced and background urban sites in an arid environment 

      Alfoldy, B.; Mahfouz, M.M.K.; Yigiterhan, O.; Safi, M.A.; Elnaiem, A.E.; ... more authors ( Elsevier , 2019 , Article)
      Spatial distribution of key air pollutants were studied in Doha, Qatar, over the course of two monitoring campaigns in early spring, 2016. Time-weighted averages of BTEX components (benzene, toluene, ethyl-benzene, ...

    • Burrowing crabs in arid mangrove forests on the southwestern Arabian Gulf: Ecological and biogeographical considerations 

      Al-Khayat, Jassim A.; Giraldes, Bruno Welter ( Elsevier B.V. , 2020 , Article)
      Many species of mangrove crabs are essential in the formation of mangrove ecosystems, and the bioturbation resulting from the excavation of their underground chambers is directly correlated with substrate oxygenation and ...

    • Can bryophyte groups increase functional resolution in tundra ecosystems? 

      Lett, Signe; Jónsdóttir, Ingibjörg S.; Becker-Scarpitta, Antoine; Christiansen, Casper T.; During, Heinjo; ... more authors ( Canadian Science Publishing , 2022 , Article Review)
      The relative contribution of bryophytes to plant diversity, primary productivity, and ecosystem functioning increases towards colder climates. Bryophytes respond to environmental changes at the species level, but because ...

    • Capillary pressure correction of cuttings 

      Alessa, S.; Sakhaee-Pour, A.; Sadooni, F.N.; Al-Kuwari, H.A. ( Elsevier , 2022 , Article)
      The accurate characterization of capillary pressure is essential in determining multiphase flow behavior in subsurface conditions. It is also essential in quantifying reservoir rock quality, reservoir fluid saturations, ...

    • The Carcinogenic and Non-Carcinogenic Health Risks of Metal(oid)s Bioaccumulation in Leafy Vegetables: A Consumption Advisory 

      Alsafran, Mohammed; Usman, Kamal; Rizwan, Muhammad; Ahmed, Talaat; Al Jabri, Hareb ( Frontiers Media , 2021 , Article)
      High levels of metal(oid)s in soil or food pose a severe health risk to humans. The potential toxicants find their way into the living systems via the food chain, following bioaccumulation in edible plants, including leafy ...

    • Changes in air quality during the first-level response to the COVID-19 pandemic in Shanghai Municipality, China 

      Bai, Yang; Zhou, Yi; Alatalo, Juha M.; Hughes, Alice C. ( MDPI , 2020 , Article)
      Ongoing rapid urban population growth world-wide has led to serious environmental problems that affect ecosystems and also lower the security and happiness of urban residents about their living environment. The most ...

    • Changes in plant composition and diversity in an alpine heath and meadow after 18 years of experimental warming 

      Alatalo, Juha M.; Erfanian, Mohammad Bagher; Molau, Ulf; Chen, Shengbin; Bai, Yang; ... more authors ( Springer , 2021 , Article)
      Global warming is expected to have large impacts on high alpine and Arctic ecosystems in the future. Here we report effects of 18 years of experimental warming on two contrasting high alpine plant communities in subarctic ...

    • Characteristics and renewal of zooplankton communities under extreme environmental stresses in the oligotrophic hypersaline Arabian Gulf 

      Liu, Hui; Nour El-Din, Nehad; Rowe, Gilbert; Al-Ansi, Mohsin; Wei, Chih-Lin; ... more authors ( Elsevier , 2022 , Article)
      Impacts of the exceptionally high temperature and salinity on species composition, abundance, biomass and diversity of zooplankton communities were examined in the central Arabian (Persian) Gulf in late winter and summer ...

    • Characteristics and sources of anthropogenic and biogenic hydrocarbons in sediments from the coast of Qatar. 

      Rushdi, Ahmed I; Al-Shaikh, Ismail; El-Mubarak, Aarif H; Alnaimi, Hajer A J A; Al-Shamary, Noora; ... more authors ( Elsevier , 2017 , Article)
      Surface sediment samples from the coastal zone of Qatar were collected and analyzed to determine the characteristics, and sources of anthropogenic and biogenic hydrocarbons. The main compounds in these surface sediments ...

    • Characterization of the extracellular polymeric substances (EPS) of Virgibacillus strains capable of mediating the formation of high Mg-calcite and protodolomite 

      Al Disi Z.A.; Zouari N.; Dittrich M.; Jaoua S.; Al-Kuwari H.A.S.; ... more authors ( Elsevier B.V. , 2019 , Article)
      The origin of dolomite –a common mineral in the geological record– is the subject of an ongoing debate. Among different hypotheses, it has been proposed that extracellular polymeric substances (EPS) excreted by microbes ...

    • Characterizing fracture toughness using machine learning 

      Alipour, M.; Esatyana, E.; Sakhaee-Pour, A.; Sadooni, F. N.; Al-Kuwari, H. A. ( Elsevier B.V. , 2021 , Article)
      The existing models for fracture toughness characterization based on nanoindentations that account for the fracture length are limited to simple (ideal) geometries that are absent in shales. The present study proposes two ...

    • Chemical Characterization and Source Identification of Beached Oil from Two Areas Along the North-Western Coast of Qatar 

      Alkaabi, Nasser; Alghouti, Mohammad; Zouari, Nabil; Solling, Theis; Bach, Steffen; ... more authors ( Hamad bin Khalifa University Press (HBKU Press) , 2016 , Conference Paper)
      Over the years there have been several reports of oil spills affecting particularly the northern coast of Qatar. In most cases, the source of oil spills is not identified. The spilled oils are very resistant to degradation ...

    • Chlorophyll-a concentrations in the Arabian Gulf waters of arid region: A case study from the northern coast of Qatar 

      Sankaran, Rajendran; Al-Naimi, Noora; Al Khayat, Jassim A.; Sorino, Caesar Flonasca; Sadooni, Fadhil N.; ... more authors ( Elsevier , 2022 , Article)
      Remote sensing of spectrally active Chlorophyll-a (Chl-a) in the gulf water of an arid region is important to understand the spatial and temporal variations of phytoplankton and biomass in the water. This study characterizes ...

    • Climate change vulnerability and adaptation strategies for smallholder farmers in Yangi Qala District, Takhar, Afghanistan 

      Omerkhil, Najibullah; Chand, Tara; Valente, Donatella; Alatalo, Juha M.; Pandey, Rajiv ( Elsevier , 2020 , Article)
      © 2019 Elsevier Ltd Smallholder farmers in Afghanistan are already facing various risks in agricultural production due to past continuous insurgencies. Climate change is likely to amplify the risk and make them even more ...