scholarly journals Population Dynamics of Hyalomma dromedarii on Camels in the United Arab Emirates

Insects ◽  
2020 ◽  
Vol 11 (5) ◽  
pp. 320 ◽  
Author(s):  
Nighat Perveen ◽  
Sabir Bin Muzaffar ◽  
Mohammad Ali Al-Deeb
Keyword(s):  
Population Dynamics ◽  
United Arab Emirates ◽  
Management Practices ◽  
Life Stage ◽  
Effective Control ◽  
Hyalomma Dromedarii ◽  
Infestation Intensity ◽  
Al Ain ◽  
Continuous Presence ◽  
Very High

Hyalomma dromedarii is the most important tick species infesting camels in the Middle East. So far, there are no studies on the population dynamics of H. dromedarii ticks on camels in the United Arab Emirates (UAE). Thus, the current study was performed: (1) to assess H. dromedarii population dynamics under common camel breeding and management practices in the study area, (2) to evaluate H. dromedarii life stage changes and sex ratio over time, and (3) to measure parasitological indicators of H. dromedarii infestation. We conducted monthly on-site tick visual counts and collection from camels in Al Ain, UAE, over 12 months. Our results show that the infestation prevalence was very high during the whole study period, with a mean of 94.33%. The maximum infestation intensity occurred in June, while the minimum occurred in January. Overall, H. dromedarii ticks were found on camels during the entire year in spite of monthly applications of an acaricide. This study reveals that H. dromedarii has a very high prevalence and continuous presence on camels in the UAE regardless of the weather fluctuations and acaricide applications and showed the need for an effective control strategy.

scholarly journals Prevalence, distribution on host's body, and chemical control of camel ticks Hyalomma dromedarii in the United Arab Emirates

2020 ◽  
Vol 13 (1) ◽  
pp. 114-120 ◽  
Author(s):  
Mohammad Ali Al-Deeb ◽  
Sabir Bin Muzaffar
Keyword(s):  
United Arab Emirates ◽  
Tick Control ◽  
The Body ◽  
Entire Body ◽  
Control Methods ◽  
Hyalomma Dromedarii ◽  
Global Circulation ◽  
Al Ain ◽  
Tick Counts ◽  
Tick Load

Background and Aim: Camel farming remains a part of the culture of the Arabian Peninsula although modern methods have greatly increased camel densities in the entire region. In the United Arab Emirates (UAE), camel production is threatened by tick parasitism. However, no study has considered assessing the magnitude of the problem in the UAE. We conducted a study evaluating tick richness, abundance, and spatial distribution of ticks on camels in farms near Al Ain, UAE. In addition, we conducted a survey of farm owners to determine the control methods used to eliminate camel ticks. Materials and Methods: Tick counts were made on 502 camels (Camelus dromedarius). For each examined animal, visual counts of ticks were made on the entire body segregating the counts by head, neck, forelegs, hump, abdomen, back legs, and tail area. In addition, a total of 70 camel owners from the study area were randomly selected and surveyed about the tick control methods. Results: Hyalomma dromedarii was the only species found during the study. The prevalence of ticks was 98% among the sampled animals. The mean intensity (tick load) was 25.8±2.4 ticks/host and the maximum number of ticks per animal was 102. Ticks were found in five vicinities that are on the border with Oman. The highest number of ticks on the body of the camel occurred on the tail area followed by the abdomen. Cypermethrin was the most commonly used acaricide (46.9%). Conclusion: The high abundance of ticks reported in this study calls for the establishment of a good management strategy. In addition, finding ticks in vicinities in the UAE that are on the border with Oman suggests a cross-border movement between the two countries. Therefore, studying this movement is important to understand its role in the global circulation of some H. dromedarii tick-borne diseases and the movement of acaricide resistance alleles among tick populations.

scholarly journals The Urban Environment Impact of Climate Change Study and Proposal of the City Micro-Environment Improvement

2021 ◽  
Vol 13 (8) ◽  
pp. 4096
Author(s):  
Jozefína Pokrývková ◽  
Ľuboš Jurík ◽  
Lenka Lackóová ◽  
Klaudia Halászová ◽  
Richard Hanzlík ◽  
...  
Keyword(s):  
Management Practices ◽  
Water Infiltration ◽  
Environment Impact ◽  
Management Procedures ◽  
Aging Infrastructure ◽  
Continue Research ◽  
Rainwater Management ◽  
The Given ◽  
The City ◽  
Very High

The water management of cities and villages faces many challenges. Aging infrastructure systems operate for many years after their theoretical lifetime (operation) with a very high need for reconstruction and repair. The solution is proper rainwater management. The investigated area is part of the cadastral area of the Nitra city. This article is based on the use of geographic information systems (GIS) as tools in proposing water retention measures that are needed to improve the microenvironment of the city. We proceeded in several steps, which consisted of area analysis, survey, surface runoff calculations in urbanized areas, proposal of a suitable solution for given location. For real possibilities of rainwater management procedures, a new site on the outskirts of the city was selected. In the given locality, it was possible to use water infiltration as a solution. The locality has suitable conditions of land ownership, pedological conditions, the slope of the area and also the interest of the inhabitants in the ecological solution. The outlined study indicates the need to continue research on the reliability of rainwater management practices.

Biologic risk factors for low birthweight in Al Ain, United Arab Emirates

1996 ◽  
Vol 8 (3) ◽  
pp. 341-345 ◽  
Author(s):  
Adekunle Dawodu ◽  
Yousef M. Abdulrazzaq ◽  
Abdulbari Bener ◽  
Inge Kappel ◽  
Larry Liddle ◽  
...  
Keyword(s):  
Risk Factors ◽  
United Arab Emirates ◽  
Low Birthweight ◽  
Al Ain

scholarly journals Directed evolution of Metarhizium fungus improves its biocontrol efficacy against Varroa mites in honey bee colonies

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Jennifer O. Han ◽  
Nicholas L. Naeger ◽  
Brandon K. Hopkins ◽  
David Sumerlin ◽  
Paul E. Stamets ◽  
...  
Keyword(s):  
Directed Evolution ◽  
Honey Bee ◽  
Entomopathogenic Fungi ◽  
Management Practices ◽  
Abiotic Factors ◽  
Control Measures ◽  
Residual Effects ◽  
Effective Control ◽  
Great Promise ◽  
Bee Colonies

AbstractEntomopathogenic fungi show great promise as pesticides in terms of their relatively high target specificity, low non-target toxicity, and low residual effects in agricultural fields and the environment. However, they also frequently have characteristics that limit their use, especially concerning tolerances to temperature, ultraviolet radiation, or other abiotic factors. The devastating ectoparasite of honey bees, Varroa destructor, is susceptible to entomopathogenic fungi, but the relatively warm temperatures inside honey bee hives have prevented these fungi from becoming effective control measures. Using a combination of traditional selection and directed evolution techniques developed for this system, new strains of Metarhizium brunneum were created that survived, germinated, and grew better at bee hive temperatures (35 °C). Field tests with full-sized honey bee colonies confirmed that the new strain JH1078 is more virulent against Varroa mites and controls the pest comparable to current treatments. These results indicate that entomopathogenic fungi are evolutionarily labile and capable of playing a larger role in modern pest management practices.

scholarly journals The effect of religion on the perception of health states among adults in the United Arab Emirates: a qualitative study

BMJ Open ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. e016969 ◽  
Author(s):  
Iffat Elbarazi ◽  
Nancy J Devlin ◽  
Marina-Selini Katsaiti ◽  
Emmanuel A Papadimitropoulos ◽  
Koonal K Shah ◽  
...  
Keyword(s):  
United Arab Emirates ◽  
Shopping Malls ◽  
Structured Interviews ◽  
Health States ◽  
Public Places ◽  
Al Ain ◽  
Value Sets ◽  
And Gender ◽  
Perception Of Health

ObjectivesInvestigate how religion may affect the perception of health states among adults in the United Arab Emirates and the implications for research on self-reported health and quality of life and the use of values in cost-effectiveness analysis.DesignQualitative analysis of short-structured interviews with adult Emiratis carried out by a market research agency.The COREQ criteria have been used where appropriate to guide the reporting of our findings.SettingParticipants were recruited from shopping malls and other public places in the cities of Al Ain and Abu Dhabi.ParticipantsTwo hundred adult Emiratis broadly representative of the Emirati population in terms of age and gender.ResultsEighty one per cent of participants said that their perception of health states was influenced by their spiritual or religious beliefs. The two overarching themes that seemed to explain or classify these influences were ‘fatalism’ and ‘preservation of life’. Subthemes included powerlessness to change what is preordained by God, fear of disability (particularly diminished mobility) and appreciation of health and life and the requirement to look after one’s health. A final theme was that of acceptance, with respondents expressing a willingness to endure suffering and disability with patience in the expectation of rewards in the hereafter.ConclusionsOur results emphasise the need for further work to establish locally relevant value sets for Muslim majority countries in the Middle East and elsewhere for use in health technology assessment decision-making, rather than relying on value sets from other regions.

Monitor surveying for migrant insect pests

1973 ◽  
Vol 7 (3) ◽  
pp. 109-116 ◽  
Author(s):  
L R Taylor
Keyword(s):  
Population Dynamics ◽  
Insect Pests ◽  
Spatial Dimension ◽  
Effective Control ◽  
Crop Pests ◽  
Insect Populations ◽  
Insect Survey ◽  
Local Assessment

Effective control of erratic crop pests requires accurate timing of treatments, and the dynamics of insect populations are inadequately understood. Aerial monitoring for many species simultaneously, instead of sampling each crop separately, enables the Rothamsted Insect Survey to provide accurate, quantitative, synoptic information on current levels of pest populations; this gives continuity to local assessment for advisory purposes, and adds a spatial dimension to population dynamics.

Impact of Human Resource Management Practices on Employees' Turnover Intention in United Arab Emirates (UAE) Health Care Services

2018 ◽  
Vol 10 (4) ◽  
pp. 21-41 ◽  
Author(s):  
Hussein BaniMelhem ◽  
Hossam M. Abu Elanain ◽  
Matloub Hussain
Keyword(s):  
Health Care ◽  
Human Resource ◽  
United Arab Emirates ◽  
Turnover Intention ◽  
Health Care Services ◽  
Management Practices ◽  
Health Care Sector ◽  
Care Services ◽  
Human Resource Management Practices ◽  
The Relationship

The article aims to examine the relationship between the human resource practices and employees' turnover intention in United Arab Emirates health care sector. This quantitative study utilized a structure equation model (SEM) technique with Analysis of Moment Structures (AMOS) 18 software package to analyze data and to investigate the impact of human resources practices on employees' turnover intention in United Arab Emirates health care services. Results of the study showed that human resources (HRM) practices in health care sector (recruitment and selection, performance appraisal, compensation, and career development) have significant relationship with turnover intention. However, this research was limited to the Public Health Care Sector in UAE and it is recommended to include Private health care sector. Moreover, inclusion of health care workers from different emirates such as Dubai and Sharjah will be needed in future researches. Health care facilities management should have a closer look at the significant human resource practices as an initiative to restructure HRM practices, policies, procedures to increase staff satisfaction, reduce employees' turnover intention and retain its valuable health care professionals. This article is among the first and most exhaustive ones carried out in health care sector in UAE. It explores the relationship between the human resource management practices and the employees' turnover intentions.

Influence of Weed Management Practices and Crop Rotation on Glyphosate-Resistant Horseweed (Conyza canadensis) Population Dynamics and Crop Yield-Years III and IV

Weed Science ◽  
2009 ◽  
Vol 57 (4) ◽  
pp. 417-426 ◽  
Author(s):  
Vince M. Davis ◽  
Kevin D. Gibson ◽  
Thomas T. Bauman ◽  
Stephen C. Weller ◽  
William G. Johnson
Keyword(s):  
Population Dynamics ◽  
Crop Rotation ◽  
Crop Yield ◽  
Cover Crops ◽  
Weed Management ◽  
Management Practices ◽  
Plant Density ◽  
Crop Yields ◽  
Management Systems ◽  
No Till

Horseweed is an increasingly common and problematic weed in no-till soybean production in the eastern cornbelt due to the frequent occurrence of biotypes resistant to glyphosate. The objective of this study was to determine the influence of crop rotation, winter wheat cover crops (WWCC), residual non-glyphosate herbicides, and preplant application timing on the population dynamics of glyphosate-resistant (GR) horseweed and crop yield. A field study was conducted from 2003 to 2007 in a no-till field located at a site that contained a moderate infestation of GR horseweed (approximately 1 plant m−2). The experiment was a split-plot design with crop rotation (soybean–corn or soybean–soybean) as main plots and management systems as subplots. Management systems were evaluated by quantifying in-field horseweed plant density, seedbank density, and crop yield. Horseweed densities were collected at the time of postemergence applications, 1 mo after postemergence (MAP) applications, and at the time of crop harvest or 4 MAP. Viable seedbank densities were also evaluated from soil samples collected in the fall following seed rain. Soybean–corn crop rotation reduced in-field and seedbank horseweed densities vs. continuous soybean in the third and fourth yr of this experiment. Preplant herbicides applied in the spring were more effective at reducing horseweed plant densities than when applied in the previous fall. Spring-applied, residual herbicide systems were the most effective at reducing season-long in-field horseweed densities and protecting crop yields since the growth habit of horseweed in this region is primarily as a summer annual. Management systems also influenced the GR and glyphosate-susceptible (GS) biotype population structure after 4 yr of management. The most dramatic shift was from the initial GR : GS ratio of 3 : 1 to a ratio of 1 : 6 after 4 yr of residual preplant herbicide use followed by non-glyphosate postemergence herbicides.

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