scholarly journals Prevalence of eimeriosis in the one-humped camels (Camelus dromedarius) from Riyadh and Al-Qassim, Saudi Arabia

PeerJ ◽  
2020 ◽  
Vol 8 ◽  
pp. e10347
Author(s):  
Dina M. Metwally ◽  
Tahani T. Al-Otaibi ◽  
Shurug A. Albasyouni ◽  
Manal F. El-Khadragy ◽  
Reem A. Alajmi

Background The one-humped camels are economically important for several countries in Africa, Asia, and the Arabian Peninsula. Coccidiosis causes significant economic impact. Studies on coccidian parasite species causing such infections are limited. The present study aimed to carry out a survey of Eimeria spp. in camels from Riyadh and Al-Qassim, Saudi Arabia. Methods A total of 209 fecal samples from Camelus (C.) dromedarius slaughtered in West Abattoir in Riyadh and Onaizah Modern abattoir in Al-Qassim were collected. Samples were examined by flotation methods and oocyst sporulation. Results Of the 209 examined fecal samples, 75 were positive for Eimeria spp..The prevalence of oocysts in Riyadh and Al-Qassim were 33.89% (40/118) and 38.46% (35/92), respectively. The prevalence in young male camels was 41.02% (32/78) and 39.62% (21/53), respectively and in adult males was 19.35% (6/31) and 36% (9/25), respectively. Adult females displayed a prevalence of 22.22% (2/9) and 38.46% (5/13) in Riyadh and Al-Qassim, respectively. Three Eimeria spp. were identified; E. cameli, E. rajasthani, and E. pellerdyi. The presence of E. pellerdyi is considered the first record in Saudi Arabia.


ZooKeys ◽  
2019 ◽  
Vol 874 ◽  
pp. 47-68
Author(s):  
Ahmed M. Soliman ◽  
Neveen S. Gadallah ◽  
Hathal M. Al Dhafer

The genus Oodera Westwood, 1874 (Hymenoptera, Pteromalidae, Cleonyminae) is recorded for the first time for the Arabian Peninsula, from the Kingdom of Saudi Arabia and the Sultanate of Oman. The present study is based on specimens reared from xylophagous beetle larvae of the family Buprestidae (Coleoptera) infesting dead Acacia trees from Al-Dakhiliyah and Dhofar governorates in Oman and Al-Baha, Asir and Riyadh regions in Saudi Arabia. Four new species, Oodera arabicasp. nov., O. omanensissp. nov., O. rapuzziisp. nov., and O. similissp. nov. are described, illustrated and compared with closely related Oodera species. An illustrated key and the xylophagous host records of the species are also provided.



Zootaxa ◽  
2017 ◽  
Vol 4216 (4) ◽  
pp. 339 ◽  
Author(s):  
NEVEEN S. GADALLAH ◽  
AHMED M. SOLIMAN ◽  
HATHAL M. AL DHAFER

The genus Eucremastus Szépligeti, 1905 (Hymenoptera: Ichneumonidae: Cremastinae) is recorded for the first time for the Arabian Peninsula from the Kingdom of Saudi Arabia. The present study is based on specimens collected from Al-Khararah, Rawdhat Al-Harmalyiah, Rawdhat Al-Sabalh, Rawdhat Farshet Sheaal and Wadi Ghaihab (Riyadh region, Central of Saudi Arabia). Three new species, E. arabicus Gadallah & Soliman, E. flavus Gadallah & Soliman and E. rufoantennalis Gadallah & Soliman are described and illustrated. An illustrated key to species is also provided. 



2020 ◽  
Author(s):  
Jarrah Babiker ◽  
John Humphrey ◽  
Khalid Al-Ramadan ◽  
Michael Kaminski

<p>The Permo-Triassic boundary has been proposed to lie between the upper and lower Khartam Members of the Khuff Formation in central Saudi Arabia. Earlier studies relied on sequence stratigraphy and geochemistry as tools for identifying the Permo- Triassic boundary. This resulted in placing the boundary in different stratigraphic positions. Worldwide, conodonts are known to be the best indicators for defining the Permo-Triassic boundary biostratigraphically. In this study, we discovered two lithological units containing conodonts in different stratigraphic positions in the Khartam Member. Conodonts in the lower stratigraphic unit were recovered from calcareous silty mudstone, while conodont samples from the upper stratigraphic unit were recovered from calcareous siltstone. Thin section petrography initially revealed the conodonts, while XRF, XRD, SEM, and QEMSCAN techniques were used to confirm the presence of biogenic apatite. Conodonts collected from the two stratigraphic intervals of the Khartam Formation showed distinct and different morphological features. Conodonts of the lower unit mainly belong to the Neogondolellids group, while conodonts from the upper unit belong to the Anchignathodontids group. This new discovery represents the first step for a clear definition of the Permo-Triassic boundary in the Arabian Peninsula.  </p>



2018 ◽  
Vol 10 (12) ◽  
pp. 228
Author(s):  
Mahmoud M. Al-Azzazy ◽  
Saleh S. Alhewairini

Several species of vegetables and fruits are attacked by many Tarsonemid mites. This includes the broad mite, Polyphagotarsonemus latus Banks (Acari: Tarsonemidae). P. latus is widely distributed world-wide and has more than 60 host plants. In this study, it has been reported on peppers, Capsicum annuum L. (Solanaceae), for the first time in Saudi Arabia. This is the second record of P. latus from the Arabian Peninsula, after Oman. The mite population was recorded 6 times at 15 day intervals from September to the end of November on six leaves per plant, two each from the top level, middle level and bottom level selected at random. Therefore, more successvie research studies are needed for maganement and control of this pest.



2021 ◽  
Vol 13 (4) ◽  
pp. 1850
Author(s):  
Veerle Ross ◽  
Nora Reinolsmann ◽  
Jill Lobbestael ◽  
Chantal Timmermans ◽  
Tom Brijs ◽  
...  

Driving anger and aggressive driving are main contributors to crashes, especially among young males. Trait driving anger is context-specific and unique from other forms of anger. It is necessary to understand the mechanisms of trait driving anger to develop targeted interventions. Although literature conceptually distinguished reactive and proactive aggression, this distinction is uncommon in driving research. Similar, cognitive biases related to driving anger, measured by a combination of explicit and implicit measures, received little attention. This pilot study related explicit and implicit measures associated with reactive and proactive aggression to trait driving anger, while considering age. The sample consisted of 42 male drivers. The implicit measures included a self-aggression association (i.e., Single-Target Implicit Association Test) and an attentional aggression bias (i.e., Emotional Stroop Task). Reactive aggression related positively with trait driving anger. Moreover, a self-aggression association negatively related to trait driving anger. Finally, an interaction effect for age suggested that only in young male drivers, higher proactive aggression related to lower trait driving anger. These preliminary results motivate further attention to the combination of explicit and implicit measures related to reactive and proactive aggression in trait driving anger research.



1980 ◽  
Vol 43 (2) ◽  
pp. 251-276 ◽  
Author(s):  
G. R. D. King

In studies of Islamic architecture dealing with the earliest periods, a natural emphasis has fallen on the mosques of the Holy Cities of Arabia, the Ḥaramayn, whenever the architecture of the Arabian Peninsula has been discussed. In later periods, extensions and restorations in the Ḥaram in Mecca and the Mosque of the Prophet in al-Madīna have likewise been discussed, but until recent times, little has been said of any other Arabian mosques. As far as mosques beyond the Ḥaramayn are concerned, this neglect has been caused largely by their inaccessibility; but as a result of the imbalance, students of Islamic architecture have been left to judge Arabia by the Prophet's Mosque, which was only truly Arabian at its foundation, and the Ḥaram and the Ka'ba, which were always unique in Islam in terms both of religion and of architecture. As for later extensions and restorations of either mosque, these tell more of the development of Islamic architectural style and taste beyond the Peninsula than of any Arabian religious architectural tradition.



Zootaxa ◽  
2018 ◽  
Vol 4514 (3) ◽  
pp. 341 ◽  
Author(s):  
MAHMOUD S. ABDEL-DAYEM ◽  
IFTEKHAR RASOOL ◽  
ALI A. ELGHARBAWY ◽  
PETER NAGEL ◽  
HATHAL M. ALDHAFER

Study of ground beetles of the Garf Raydah Nature Reserve, located in the Asir Mountains of southwestern Kingdom of Saudi Arabia (KSA) resulted in one species, Paussus abditus Nagel, sp. n. described as new to science. Thirteen species (21.3%) are reported as new country records and fifteen species (24.6%) are new records for Asir Province. Adult beetles were collected from 2013 to 2017. The determination of this material yielded a total of 61 species in 40 genera and 17 tribes belonging to nine subfamilies of Carabidae. The species richness represented approximately 36.1% of carabid species previously reported from KSA. The most species rich tribes were the Lebiini (20 species), the Harpalini (10 species), and the Bembidiini (6 species). The life form analysis of adults indicated 18 life form types that are grouped into three categories, Zoophagous (77.1%), Mixophytophagous (18.0%), and Myrmecophilous (4.9%). Zoogeographical analyses indicated that the Afrotropical (19.3%) and the Saharo-Arabian (19.3%) species dominate the carabid fauna of this region of KSA. Coryza cf. maculata (Nietner, 1856) is considered the only Oriental representative. Only one cosmopolitan species, Perigona nigriceps (Dejean, 1831), was collected. Eleven endemics were identified; six species are considered KSA endemics and five are Arabian Peninsula endemics. 



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