Sherwan Tayeb Ahmed

Sherwan Tayeb Ahmed
Salahaddin University - Erbil | SUH · Department of Biology

PhD.Invertebrate Zoology

About

16
Publications
9,575
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54
Citations
Additional affiliations
November 2015 - November 2015
Salahaddin University - Erbil
Position
  • Professor (Assistant)

Publications

Publications (16)
Article
Full-text available
My review article is focussing on the pivotal role of phytotherapeutics in fighting antinematicidal-resistant gastrointestinal nematodes of livestock
Article
During May through July 2014 six localities in Erbil province were searched for sunspiders, they were observed on ground, under stones and between grasses especially at night. Two species belong to two families, Galeodidae and Rhagodidae were identified from the study area, Galeodes caspius subfuscus Birula 1937, was recorded for the first time in...
Article
Full-text available
During May through July 2014 six localities in Erbil province were searched for sunspiders, they were observed on ground, under stones and between grasses especially at night. Two species belong to two families, Galeodidae and Rhagodidae were identified from the study area, Galeodes caspius subfuscus Birula 1937, was recorded for the first time in...
Article
Full-text available
The present paper provides the first study of the morphology, description and distribution preferences of the Scolopendromorpha centipede fauna of Kurdistan/Iraq. Three species belong to the genus Scolopendra have been reported from the country. After a study of significant amount of new material collected in the period 2013-2014, three species nam...
Article
The present paper provides the first study of the morphology, description and distribution preferences of the Scolopendromorpha centipede fauna of Kurdistan/Iraq. Three species belong to the genus Scolopendra have been reported from the country. After a study of significant amount of new material collected in the period 2013-2014, three species nam...
Article
Full-text available
Hydras are freshwater cnidarians. They are found on all the continents except Antarctica, and they are also found on Continental Island but are apparently absent from oceanic island. The two species of brown hydra, Hydra vulgaris (Pallas, 1766) and Hydra oligactis (Pallas, 1766) were recorded for the first time in Iraq from samples collected from t...
Article
Full-text available
This study investigation represents the first on parasites of the lizard, Laudakia nupta nupta not in Iraq but all over the world. An intestinal nematode, Abbreviata baltazardi has been recovered from the lizard, L. nupta nupta caught from Rawandos mountains in Kurdistan region, Iraq. The main characteristics of this nematode are: mouth with large...
Article
Full-text available
Erpobdella octoculata which is a worm leech is widely distributed in study area with (2-2.5)cm in length, they are good swimmers, macrophagous predators.Gonopores are located in furrow, male gonopore large; the female gonopore is minute and located two annuli posterior to it. Erpobdella octoculata has two reproductive periods in a year, attach thei...
Article
Full-text available
The influence of four pesticides (Cyren, Ridomil, Triplen and Mamba) on Lumbricus terrestris earthworm for 4 weeks was studied in the laboratory. Results indicate that there are loss of weight in all cultures, signs and symptoms of toxicity such as coiling, selling of the body swollen, sluggish movements and discharge of coelomic fluid. Significant...
Article
Full-text available
Histological investigation of two free living leeches viz. Erpobdella octoculata and Haemopis sanguisuga revealed five types of epidermal cells in the epidermis of these leeches; three glandular cells, one supporting cell and one pigment cell. The three glandular cells of the clitellar region of Erpobdella octoculata epidermis when examined using e...
Article
Full-text available
The venom apparatus of Scorpio maurus kruglovi (Birula,1910)collected from Latifawa (Erbil, Kurdistan/Iraq) were examined morphologically and histologically. The results showed that they are composed of a bulbous vesicle and a curved stinger, both situated in the last segment of the metasoma. The vesicle bears numerous sensory hairs or setae but th...
Article
Full-text available
During May through July 2012 many habitats in Mergasor locality were investigated for jumping spiders. Three species and three genera were recorded belonging to the family Salticidae which are Philaeus chrysops , Plexippus paykulli and Saitis leighii . Philaeus chrysops had height population in this area but further investigations are needed to cla...
Article
Full-text available
During May through July 2012 many habitats in Mergasor locality were investigated for jumping spiders. Three species and three genera were recorded belonging to the family Salticidae which are Philaeus chrysops, Plexippus paykulli and Saitis leighii. Philaeus chrysops had height population in this area but further investigations are needed to clari...
Conference Paper
Full-text available
During March 2007 to October 2008, twenty one freshwater bodies in Erbil and its suburbs were investigated for leech collection. Six sites were found to be habitated with these worms. They were collect-ed from understones, submerged vegetatives, cans or any other de-bris. Erpobdella octoculata are good swimmers, their body segments have five subdi...

Questions

Question (1)
Question
I dissected some unidentified medicinal leeches and I noted that the female reproductive organ of some are located at the left side of their nerve cord but others are at the right side .  

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