• Effect Of Temperature On Hyalomma (Hyalomma) Impeltatum Schulze And Schlottke (Ixodoidea: Ixodidae) 

      Khalil, Galila M. [جليلة مصطفى خليل]; Hagras, Ahmed E. ( Qatar University , 1988 , Article)
      The effect of 21, 25, 29 and 34°C on developmental period duration, weight of different stages in the life cycle and conversion efficiency in Hyalomma (H.) impeltatum Schuize and Schlottke was investigated at 75% relative ...
    • On The Earthworm Fauna And Distribution In The State Of Qatar 

      Al Yousuf, Shoa'a [شعاع السيد اليوسف]; Hagras, Ahmed E. W. ( Qatar University , 1986 , Article)
      This paper is a preliminary account of the earthworms collected in February and March, 1986, from 10 localities in Qatar. Five species, Amynthas corticis (Family Megascolecidae), Dichogaster bolaui (Family Octochaetidae), ...