Mohammed.Laid. Ouakid

Badji Mokhtar - Annaba University | UBMA · Département de biologie

In the Mediterranean, Urothemis edwardsii is one of the most threatened dragonfly species with a relict population restricted to the northeast of Algeria. Despite the recent subtle local expansion in the geographic distribution of the species during the past decade, studies on the life history of the species are still lacking. We carried out a stud...

In recent years, the cork oak forests that characterise the Mediterranean region have been exposed to various factors that result in their degradation. These cork oak trees, due to increasingly accentuated anthropogenic activity, undergo withering at different scales.The objective of the study is to assess the impact of various factors that degrade...

The common house martin Delichon urbicum is a nesting migratory species in Algeria. In Guelma, it nests regularly in Hakim Okbi Hospital (an old building in the city center) with a colony of 352 nests. Monitoring the breeding biology of this passerine here showed that the species nests twice per year, in March-May and June-July. The characteristics...

An updated checklist of the mosquitoes (Diptera: Culicidae) of Algeria based on records published from 1903 to 2021 is presented. Fifty-three species belonging to seven genera are known with reasonable confidence to occur in the country, including Aedes (15 species), Anopheles (15), Coquillettidia (2), Culex (14), Culiseta (5), Orthopodomyia (1)...

The current work was done Artemisia herba-alba and Artemisia compestris essential oils harvested from the Eastern Algerian Sahara, their insecticidal characteristics against the eggs and adults of the date moth Ectomyelois ceratoniae. Indeed, two treatment modes were used; by contact application on eggs and by inhalation against adults. It appears...

This study describes the effects of pH and temperature on larval survival and development time of Culiseta longiareolata. Solutions ranging from pH 3 to 13 and temperatures of 15, 20 and 30°C were employed and results revealed that the Cs. longiareolata larvae tolerated pH between 6 and 12; solutions with lower or higher pH killed L1 and L4 larvae....

Une vie sans moustiques, ce serait le bonheur ! Plus de bzzz agaçant. Plus de piqûres qui grattent. Et surtout, plus de dengue ou de paludisme, ces maladies transmises par les moustiques, qui tuent, chaque année, des centaines de milliers de personnes !. En été, les moustiques sont de sortie. C'est bien connu, ce sont des petits prédateurs assoiffé...

ABSTRACT: Objectives: The control strategies of mosquitos like Culiseta longiareolata were developed gradually. A study of the bio-ecology of Culiseta longiareolata was considered as the first step to fight against it. Methodology and results: Larvae and adult collections were carried out from different habitats using standard dipping methods from...

For the first time a nesting success of a Blue Rock Thrush (Monticola solitarius) couple was conducted in a residential area of the city center of the municipality of El-Bouni, in the northeast of Algeria. This municipality has a high population density and contains several commercial and industrial areas, which make it a considerable source of dis...

The aqueous fruit extracts of the pepper Capsicum annuum L. (Solanales: Solanceae) were tested against the four larval stages of the tomato leafminer (TLM) Tuta absoluta Povolny (Lepidoptera: Gelechiidae). Random samplings were made from two greenhouses of Biskra, in the Southeast of Algeria. About 750 to 800 plants of the Sahara variety of tomatoe...

This work focused on monitoring the reproductive phenology of the chaffinch Fringilla coelebs africana for two successive seasons (2016 and 2017) in the mountains of the El Kala National Park (North East Algeria). We searched for nests in the tree stratum or by direct observation of breeding pairs carrying building materials from mid-March to the e...

The sensitivity of the first to fourth-stage larvae of Culiseta longiareolata (Diptera: Culicidae) treated with Spinosad was the first aim of this work. Five concentrations were administered for the toxicological tests (0.05, 0.1, 0.5, 1 and 5 μg/l). The results gained showed us an insecticidal effect which increases, according to the concentration...

The monitoring of the Ferruginous Duck (Aythyanyroca) in Tonga Lake (El Kala National Park) was conducted from September 2016 until August 2017. This diving duck listed as a Near Threatened Species (IUCN Red List, 2017) is a regular breeder in this Lake. The evolution of the duck number showed a maximum of 128 individuals during the wintering seaso...

The date moth, Ectomyelois ceratoniae, infests date both in the field, on date palms and the proliferation continuing during storage. Chemical interventions have failed until today an effective protection of the date production because of the biology and feeding behavior of this pest. The larvae of this moth, feeding and developing inside the date...

In oviparous taxa such as birds, clutch characteristics (e.g. egg size, egg mass and the number of eggs) can be considered as energetic investment in reproduction. In this paper, we study variation in the principal component indices of egg size and shape in Rufous Bush Chats (Cercotrichas galactotes) breeding in date palm plantations in the Al Amri...

The Culicidae are Nematocere Diptera, they occupy place of choice, either by the role of vector of pathogenic organisms, or by their nuisance. In recent years, the mosquito has become widespread in all humid regions and can spread serious diseases. In order to know the most widespread mosquito species, we conducted an inventory in the El Marsa wetl...

RESUME Notre étude porte sur le test de l'efficacité du traitement thermique comme alternative au traitement chimique pour lutter contre les œufs et des larves de la pyrale de datte dans les lieux du stockage et du conditionnement des dattes. L'emploi des produits chimiques de synthèse, aux conséquences, sans aucun doute, contrariantes pour la sant...

The Culicidae family constitutes a plague of health risks. These biting insects are harmful to human populations and pass on infectious diseases such as malaria. Since chemical control has limited effectiveness against mosquitoes, biological control has become more prevalent. We conducted toxicological tests with an ethanolic extract of fresh leave...

The date moth Ectomyelois ceratoniae Zeller (Lepidoptera: Pyralidae) is considered at present a permanent danger for date palm in Algeria. The polyphagia of this insect and its wide distribution on various hosts as well as the particular behavior of its neonatal caterpillars make this insect a major pest of the Algerian palm groves. In this context...

This study aimed to characterise mosquito species distribution based on the nature and type of breeding habitats and the influence of the vegetation that occupies these sites. Knowledge of variation in breeding site types can help in the design of optimal vector control strategies. In different areas of Biskra (southeast Algeria), mosquito immature...

We studied clutch size and timing of breeding of Rufous Bush Chats Cercotrichas galactotes inhabiting Date Palm plantations in an oasis in NE Algeria with respect to interannual variation. Although oases may be assumed to provide relatively stable ecological conditions favourable for some insectivorous birds, including Rufous Bush Chats, we found r...

One of the responses of arid-land birds to ongoing climate warming is to shift their ranges towards higher altitudes to track species climatic optima. As this can influence their life history traits, more information is needed on breeding output from these border populations. We studied the breeding biology of the Trumpeter finch (Bucanetes githagi...

The bacterium Bacillus thuringiensis, is one of the insecticides mostly used at the moment as agent of biological control to suppressing the populations of diverse insect pests. The present study tested the strain Bacillus thuringiensis var krustaki against fourth stage larvae of Culex pipiens where they were exposed to different concentrations of...

The preliminary trials of the aqueous extract of Citrullus colocynthis fruits on the larvae (L4) of two species of mosquitoes (Culex pipiens and Culiseta longiareolata) showed the efficacy of this extract on the larvae (L4) of the two species. The sublethal doses (10, 50 and 100 mg / l) were tried on the reproductive performances to the two species...

Biogeographical analysis of breeding birds was carried out in a cedar forest of Algeria. A biogeographical analysis of breeding birds was carried out in a height cedar forest of Algeria (Aures, Belezma) between 2007 and 2010. This analysis indicates that the majority of breeding birds in the tree layer, with low attachment to Mediterranean region a...

Our study was carried out in the area of Oued El Bsibsa in the Djebel Amour in the center of the Saharan Atlas, at the limit of Sahara desert (34° 12' N; 2° 10' E, 1300-1470m). We followed the biology of the reproduction of Greenfinch Carduelis chloris ssp voousi, one of common passerine of this region, during three seasons of reproduction. The nes...

The placement and size of birds' nests may have direct consequences for their breeding success. Here, we examined if the location and design of Rufous Bush Chat (Cercotrichas galactotes) nests influenced their breeding success in the Al Amri Oasis, at the base of Saharan Atlas, north Algeria, in 2008-2009 and 2011-2013. The mean height of nests abo...

Cockroaches are species that live at night and shelter in places that provide a suitable microclimate and allow them to have easy access to food. The inventory of African species is far from complete. In North Africa, little research has been conducted on wildlife Orthopteroid and more particularly on the Dictyoptera. To identify different species...

Natural regeneration maintenance of cork oak remains a major concern of forest in Algeria. Faced with the deterioration of the health status of the Algerian forests, it is urgent to think otherwise. Acorn is affected by this degradation, showing a low yield and vulnerability to carpophagous attack that disrupt the regularity and abundance of acorns...

Bocek faunasi, orman ekosistemlerinin dinamikleri ve isleyisi acisindan elzemdir. Belirli turlerin ekolojik rolu ve biyolojik gosterge statusu, ormanlarin saglik durumu hakkinda bir gosterge olabilir ve ormanlarin bozulmasiyla ilgili faktorlerin belirlenmesine yardimci olur. Oncelikle mese agaclarinin yapraklarina, palamutlarina ve govdesine zarar...

Agac zararlisi Lymantria dispar (Lepidoptera, Lymantriidae), set agaclar icin en zararli boceklerden biridir. Bu zararli, periyodik olarak ortaya cikmakta ve mantar mesesinin yapraklarina ciddi zararlar vermektedir. Cezayir’de, L. dispar 1925 yilindan bu yana bildirilmektedir ve bu yaprak zararlisiyla mucadele kapsaminda kimyasal insektisitler ve/v...

The Algerian forests are essentially constituted of Quercus suber and Quercus faginea; they shelter a much-diversified entomofaune among which the species gall. We were interested in the collection and identification of the various galls which settle down on the different organs of the Quercus suber and of the Quercus faginea. We have chosen four e...

The date moth Ectomyelois ceratoniae is the major insect pest of Algerian palm gardens. All phoenicicol regions are infested. The study of toxic activity of essential oils from Peganum harmala by topical application on eggs forth instar larvae and by fumigation on adults, showed perceptible effects against this insect. The hatching rate recorded fo...

This study evaluated the toxic effect of Azadirachta indica against larvae 4 th stages of two species of mosquitoes (Culex pipiens and Culiseta longiareolata) under laboratory conditions in southern Algerian. We used five doses (3, 6, 12, 24 and 48 mg/L) of this product. The LD50 and LD90 values after treatment were 7.66 mg/L with a confidence inte...

This study aims to investigate the diversity, population dynamics, and distribution of forest cockroaches from the litter of three types of Mediterranean forests (Pinus halepensis, Juniperus phoenicea, Quercus ilex) in Belezma National Park (Northeast Algeria). In every type of forest, blattopteran individuals were hand-collected fortnightly from M...

The study was carried out at Oued El Bsibsa (34° 12' N- 2° 10' E, Djebel Amour, Saharan Atlas, 1300-1470 m). We present data on the breeding biology of the European Greenfinch Chloris chloris voousi, one of the common passerine of this region. The nest density was of 2.73 nests/10 ha. Mean clutch size was of 4.09 +/- 0.75 eggs/nest, a relatively lo...

We examined the variation in the date of the onset of egg laying and clutch size in three peripheral populations of the Afrocanarian Blue Tits Cyanistes teneriffae ultramarinus at the edge of the species and subspecies geographic range. This study was carried out in three study sites, 130-290 km apart, in similar geographic conditions of the South...

Amount and quality of resources may be variable and generally poor in habitats of marginal avian populations living at the edge of species breeding range. We studied variation in egg traits (length, breadth, volume and shape) in three populations of the African Blue Tit Cyanistes caeruleus ultramarinus inhabiting degraded habitats in highlands of A...

La présente étude a intéressé l'activité larvicide de l'extrait aqueux de fruits de Citrullus colocynthis sur les larves de deux espèces de moustiques (Culex pipiens et Culiseta longiareolata) élevées au laboratoire, de la région de Laghouaten 2014.Les résultats préliminaires ont montré que l'extrait utilisé a une grande efficacité par rapport aux...

Vegetation Study of degraded steppes

L’application de boues d’épuration urbaines sur un sol sableux et sur la culture d’une céréale (orge) a été testée lors cette étude afin de cerner l’effet de cette technique après trois années. Nous avons testé l’effet de quatre doses 6 à 30 tonnes de boues appliquées à l’hectare par rapport à un témoin sans application de boue. Les effets à court...

Notre étude porte sur des tes de lutte biologique à partir du cortège parasitaire autochtone de la pyrale des dattes (Apomyelois =Ectomyelois ceratoniae Zeller, 1839). Nous avons testé deux principaux auxilliares :Phanerotomaflavitestacea Fisher et Bracon hebetor Say. Les résultats obtenus montrent qu’il y a un effet significatif de l’action parasi...

For most animals smell is the primal sense. One they rely on to identify food, predators and mates. Indeed, for many organisms, odours arc their most efficient means of communicating with others and interpreting their surroundings. Innate behaviour in response to smell is essential to these organisms' survival and most likely result s from nonconsc...

Aqueous extracts of fresh leaves of Daphne gnidium and Peganum harmala were evaluated in the laboratory for their insecticidal effect on mosquitoes larvae, Culex pipiens (Diptera ; Culicidae) at 75 g/l, 150 g/l et 300 g/l for D. gnidium and P. harmala. A synergistic effect of extracts from these plants was determined in this study. Our results show...

Spinosad, which is an active substance, derived from the bacterium Saccharopolyspora spinosa, is one of the most known insecticides used as a biological control agent against populations of various insect pests nowadays. Within this axis, we tested the formulation (Tracer 480SC) against fourth stage larvae of Culex pipiens where they were exposed t...

L’étude est réalisée entre 2007 et 2012 dans les palmeraies septentrionales de l’Algérie, sur la reproduction du Merle noir nicheur sur le palmier dattier. Les résultats montrent une faible variation des traits de vie entres les années d’études. La date, la grandeur de ponte et le succès de la reproduction ne sont pas variables avec les saisons de...

The mallard duck (Anas platyrhynchos) makes part of the family of Anatidae. It is the biggest and the most abundant of the surface dusks in occidental Palearctique. In order to determine the modalities of plan water occupation by these birds, three taken out were realized per month, where their numbers were counted. The spatial divisions were also...

Résumé: Les subéraies de l’Est Algérien connaissent ces dernières années de graves dégradations dues à de nombreux facteurs. Vue l’absence d’informations sur l’état sanitaire des subéraies de haute montagne dans l’Est Algérien, nous avons initié une étude pour évaluer l’état sanitaire des subéraies de Ouled Bechih dans la région de Souk-Ahras L’étu...

The present study was undertaken with an aim to elucidate the effects of chronic restraint stress on the metabolic variations of glycemia, cholesterol, triglycerides and the evolution of depression. The chronic restraint stress was applied in female wistar rats (1hour /day, 4 days / week for 5 weeks) in perforated plastic cylinders so that they can...

CITATIONS 0 READS 57 6 authors, including: Some of the authors of this publication are also working on these related projects: Exploration du stress oxydant dans un mileu pollué View project This study aimed to evaluate the lasting effects of prenatal stress on physiology, neurodevelopment and neuroimmunity in the progeny at juvenile age, and how e...

The marketing of dates nationally and internationally is facing some constraints which the deterioration of the quality of the fruit through the action of moth dates ( Apomyelois = Ectomyelois ceratoniae Zeller ) . The latter is classified on List A pest whose control is mandatory (Executive Decree No. 95-387 of 28 November 1995). The damage it cau...