Khalid Usman

ORCID: 0000-0001-8031-2626
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About
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Research Areas
  • Fish Biology and Ecology Studies
  • Water Quality and Pollution Assessment
  • Plant Parasitism and Resistance
  • Fish Ecology and Management Studies
  • Spider Taxonomy and Behavior Studies
  • Heavy metals in environment
  • Orthoptera Research and Taxonomy
  • Environmental and Biological Research in Conflict Zones
  • Viral Infections and Vectors
  • Bat Biology and Ecology Studies
  • Transboundary Water Resource Management
  • Mosquito-borne diseases and control
  • Insect-Plant Interactions and Control
  • Diptera species taxonomy and behavior
  • Plant and animal studies
  • Species Distribution and Climate Change
  • Insect and Arachnid Ecology and Behavior
  • Politics and Conflicts in Afghanistan, Pakistan, and Middle East
  • Fractional Differential Equations Solutions
  • Animal Ecology and Behavior Studies
  • Ecology and Vegetation Dynamics Studies
  • Lepidoptera: Biology and Taxonomy
  • Environmental Toxicology and Ecotoxicology
  • Circadian rhythm and melatonin
  • Pigment Synthesis and Properties

Federal University Gusau
2023

Federal Medical Centre
2023

Hazara University
2019-2021

Abbottabad University of Science and Technology
2021

Institute of Zoology
2021

Madurai Kamaraj University
1980-1990

Abstract The present research was carried out to explore the spider fauna of Buner valley with taxonomic study from February 2018 January 2019. For this purpose samples were collected, four times at each month 4 tehsils: Daggar, Gagra, Mandan and Totalai. Two methods used, hand picking sweep net for collection samples. During day night, three habitats, arid area, agriculture land building area search collection. A total 534 collected sampling sites, in which 379 belonging family Araniedae....

10.1590/1519-6984.238339 article EN cc-by Brazilian Journal of Biology 2021-06-24

Abstract Snow trout (Schizothorax plagiostomus) is an economically important freshwater fish, mostly found in northern areas of water reservoirs Pakistan. The current study was conducted River Swat to analyze the bioaccumulation heavy metals (Pb, Cr, Ni, and Zn) tissues Schizothorax plagiostomus. Tissues were extracted dissolved perchloric acid (HClO4) nitric (HNO3) along with hotplate. metals, zinc (Zn), lead (Pb), chromium (Cr), Nickel (Ni) determined using Perkin Elmer 2380 atomic...

10.1590/1519-6984.243633 article EN cc-by Brazilian Journal of Biology 2021-05-28

The present investigation was conducted to evaluate the amount of heavy metals from River Siran at Khaki site Khyber Pakhtunkhwa, Pakistan. chosenheavy were Zn, Cu, Cd, Pb, Cr and Mn correspondingly. In current survey,the concentration examined Zn 1.14-1.85 ppm; Cu 1.04-1.25 Cd 0.02-1.35 Pb 0.05-1.27 0.04-0.16 ppm 0.06-0.08 respectively. research found above permissible ranges while 1.13-1.88 0.01-0.04 lies within limits.

10.31221/osf.io/zpequ article EN 2019-12-21

This study determined the effectiveness of Montessori Method Teaching, MMT on Junior Students' achievement in measuration.The was carried out Education Zone B Benue State, Nigeria using a sample size 224 junior secondary 1(JSS1) students.It non equivalent quasi-experimental which guided by two research questions and three hypotheses.The instrument Measuration Achievement Test (MAT) constructed researchers with reliability coefficient 0.76 used as pre post tests though reshuffled each...

10.5251/ajsir.2010.1.2.375.379 article EN American Journal of Scientific and Industrial Research 2010-09-01
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