Estimation of Soil Radon Concentration in Al-Qateef’s Date Palm Farms, Saudi Arabia

A comprehensive survey was conducted at different provinces of Saudi Arabia (SA) to investigate predacious prostigmatid mites (Acari: Trombidiformes: Prostigmata) mainly collected from the date palm, Phoenix dactylifera L. (Arecaceae) agro-ecosystem. A total of 41 species belonging to 28 genera in 14 families are recorded in the present study. Out of these, three families, 18 genera and 36 species are new to the mite fauna of SA. The new species, Neobonzia tabukensis sp.nov. (Cunaxidae), Cheletomimus (Philippicheyla) taifensis sp.nov. (Cheyletidae) are described and illustrated. A checklist of predatory prostigmatid mites from SA is given. A key to all terrestrial predatory prostigmatid mites, excluding Parasitegona and Heterostigmatina, reported from SA is provided. Also, a key to world species of the subgenus Philippicheyla Corpuz-Raros of the genus Cheletomimus Oudemans is given.

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Mesostigmatic mites (Acari: Mesostigmata) of Saudi Arabia (excluding Phytoseioidea), new records and a key to the known species

Zootaxa ◽

10.11646/zootaxa.4388.3.4 ◽

2018 ◽

Vol 4388 (3) ◽

pp. 373 ◽

Cited By ~ 1

Author(s):

FAHAD JABER ALATAWI ◽

MUHAMMAD KAMRAN ◽

JAWWAD HASSAN MIRZA

Keyword(s):

Saudi Arabia ◽

Date Palm ◽

New Records ◽

Collection Data

This paper reports on 35 species and 33 genera belonging to 18 families of the order Mesostigmata, collected from different provinces of Saudi Arabia. Among these, eight families, 21 genera and 30 species, mostly collected from date palm agroecosystem, are new to the fauna of Saudi Arabia. Five species reported previously are also recorded in this study. The collection data and distribution of all species recorded in this study as well as those reported previously are given. A comprehensive key to the females of the mesostigmatic mites reported from Saudi Arabia, except the Phytoseioidea, is provided.

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Analysis of soil radon data in earthquake precursory studies

Annals of Geophysics ◽

10.4401/ag-6513 ◽

2014 ◽

Vol 57 (5) ◽

Author(s):

Hari Prasad Jaishi ◽

Sanjay Singh ◽

Raghavendra Prasad Tiwari ◽

Ramesh Chandra Tiwari

Keyword(s):

Statistical Analysis ◽

Multiple Regression ◽

Radon Concentration ◽

Seismic Activity ◽

Meteorological Parameters ◽

Regression Method ◽

Seismic Zone ◽

Type Ii ◽

Soil Radon ◽

Multiple Regression Method

<p>Soil radon data were recorded at two selected sites along Mat fault in Mizoram (India), which lies in the highest seismic zone in India. The study was carried out during July 2011 to May 2013 using LR-115 Type II films. Precursory changes in radon concentration were observed prior to some earthquakes that occurred around the measuring sites. Positive correlation was found between the measured radon data and the seismic activity in the region. Statistical analysis of the radon data together with the meteorological parameters was done using Multiple Regression Method. Results obtained show that the method employed was useful for removing the effect of meteorological parameters and to identify radon maxima possibly caused by seismic activity.</p>

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A COMPARATIVE STUDY ON THE KINDS OF WEEDS OF PALM Plantations IN Tabuk AND Al-Qassim Regions IN Saudi Arabia

IRAQI JOURNAL OF AGRICULTURAL SCIENCES ◽

10.36103/ijas.v52i3.1368 ◽

2021 ◽

Vol 52 (3) ◽

pp. 763-773

Author(s):

N. A. Al-Harbi

Keyword(s):

Saudi Arabia ◽

Comparative Study ◽

Data Management ◽

Life Span ◽

Life Form ◽

Date Palm ◽

Arabian Peninsula ◽

Severe Damage ◽

Common Life ◽

Unique Species

This study was aimed to investigate weeds kind in palm plantations. Date palm is the most chief economic crop in most countries of the Arabian Peninsula. Many factors, such as the presence of weeds, may cause a huge loss in the production of dates. Despite the severe damage caused by the presence of some weeds in agroecosystems, many weeds have many medicinal and economic uses. A total of 62 species were listed in palm Plantations in Tabuk and Al-Qassim Regions. A total of 51 species were listed in Tabuk Region (The number of unique species in the Tabuk Region reached 32 that not recorded in Al-Qassim Region. Also, 19 species were recorded in both of Tabuk and Al-Qassim Regions). A total of 30 weeds were listed in Al-Qassim Region (The number of unique species in the Al-Qassim Region reached 11 that not recorded in the Tabuk Region. In addition to, 19 species were recorded in both of Tabuk and Al-Qassim Regions). Zygophyllaceae was the most common family, the majority life span was annuals and the most common life form was therophyte in both Tabuk and Al-Qassim Regions. Data management and classification were achieved using PCORD (TWINSPAN and DCA analyses).

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Geophysical survey of Neovolcanic complexes in the first protection zone of the Sliač Spa and the Baková jama

Contributions to Geophysics and Geodesy ◽

10.2478/congeo-2014-0004 ◽

2014 ◽

Vol 44 (1) ◽

pp. 61-77

Author(s):

Mariana Pašiaková ◽

Vojtech Gajdoš ◽

Jana Bučová ◽

Jana Dérerová ◽

Adam Straka ◽

...

Keyword(s):

Radon Concentration ◽

3D Model ◽

Geophysical Survey ◽

Survey Method ◽

Protection Zone ◽

Soil Radon ◽

Vertical Electric Sounding ◽

Tectonic Line

Abstract The main purpose of the survey in the 1st protection zone area of the Sliač Spa and the Baková jama was to clarify the geological-tectonical structure. The vertical electric sounding (VES) technique was selected as the main geophysical survey method. Additionally, the soil radon emanometry was carried out to verify tectonic lines’ presence. The outcrop of Pre-Tertiary basement was discovered in the form of small isolated island. No tectonic line was identified based on the evaluation of profile radon concentration. The results of geoelectrical measurements are presented in 8 geological-geophysical crosssections. The results and the tectonic lines’ courses interpreted by the VES method are drawn in the map of new indications. The isoline maps and 3D model of Pre-Tertiary basement were constructed.

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Parlatoria blanchardii. [Distribution map].

Distribution Maps of Plant Pests ◽

10.1079/dmpp/20056600148 ◽

1962 ◽

Author(s):

Keyword(s):

Saudi Arabia ◽

South America ◽

Geographical Distribution ◽

Date Palm ◽

Distribution Map ◽

New Distribution

Abstract A new distribution map is provided for Parlatoria blanchardii (Targ.) (Homopt., Coccoidea) (Date-palm Scale). Hosts: Date palm and other palms. Information is given on the geographical distribution in ASIA (excl. USSR), Afghanistan, India, Iraq, Israel, Jordan, Pakistan, Persia, Saudi Arabia, Syria, USSR, AFRICA, Algeria, Chad, Egypt, Libya, Mali (formerly French Sudan), Mauritania, Morocco, Niger, Somalia, Sudan, Tunisia, SOUTH AMERICA, Brazil.

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