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Auteur Djamel Alatou |
Documents disponibles écrits par cet auteur (13)



Adaptation du chêne liège (Quercus suber L.) aux conditions extrêmes de température / Malika Rached-Kanouni
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Titre : Adaptation du chêne liège (Quercus suber L.) aux conditions extrêmes de température Type de document : texte imprimé Auteurs : Malika Rached-Kanouni, Auteur ; Djamel Alatou, Directeur de thèse ; Souliaman Sakr, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2013 Importance : 149 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Chêne liège températures extrêmes (éventail thermique) paramètres morphologiques marqueurs biochimiques
cork oak extreme temperatures morphological parameters biochemical markers البلوط الفلیني الحرارة المتطرفة العوامل المورفولوجیة العوامل
البیوكیمیائیةIndex. décimale : 570 Sciences de la vie. Biologie Résumé :
The climatic changes which the Mediterranean region knows are at the origin of the physionomical variations of the forest ecosystems. This pathology appears by thermal stresses which undergo the trees in their natural area, affecting their growth and productivity.
The most disastrous consequences appear by a risk of displacement of their biogeographic areas. This study is articulated on the capacities of adaptation of cork oak to thermal variability using the biochemical markers (proline, soluble sugars, proteins and quercitol). Sowings have elevated under semi controlled conditions undergo three successive stresses of short duration of 3 hours to a range of temperature ranging between -2°C and 44°C.
We have effected the measures of morphological parameters (hight of stream, number of leafs and foliar surface) and biochemical.
The morphological parameters showed a statistically significant difference between the different treatments and stress. Soluble sugars (sucrose, glucose and fructose), the starch are closely linked with a reduction in their contents at stressed seedlings. The accumulation of the proline is correlated positively with the hot temperatures and accumulation of the proteins is significant at 2°C and 38°C. The quercitol is correlated with extreme temperatures (-2°C and 44°C). The roots and the young leaves (the 2nd flush) accumulated proline and quercitol. The accumulated quantities could be related to the level of tolerance to the thermal stress, contributing to the maintenance of cellular turgescence, creates by osmotic adjustment for these markers.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/RAC6371.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=6341 Adaptation du chêne liège (Quercus suber L.) aux conditions extrêmes de température [texte imprimé] / Malika Rached-Kanouni, Auteur ; Djamel Alatou, Directeur de thèse ; Souliaman Sakr, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2013 . - 149 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Chêne liège températures extrêmes (éventail thermique) paramètres morphologiques marqueurs biochimiques
cork oak extreme temperatures morphological parameters biochemical markers البلوط الفلیني الحرارة المتطرفة العوامل المورفولوجیة العوامل
البیوكیمیائیةIndex. décimale : 570 Sciences de la vie. Biologie Résumé :
The climatic changes which the Mediterranean region knows are at the origin of the physionomical variations of the forest ecosystems. This pathology appears by thermal stresses which undergo the trees in their natural area, affecting their growth and productivity.
The most disastrous consequences appear by a risk of displacement of their biogeographic areas. This study is articulated on the capacities of adaptation of cork oak to thermal variability using the biochemical markers (proline, soluble sugars, proteins and quercitol). Sowings have elevated under semi controlled conditions undergo three successive stresses of short duration of 3 hours to a range of temperature ranging between -2°C and 44°C.
We have effected the measures of morphological parameters (hight of stream, number of leafs and foliar surface) and biochemical.
The morphological parameters showed a statistically significant difference between the different treatments and stress. Soluble sugars (sucrose, glucose and fructose), the starch are closely linked with a reduction in their contents at stressed seedlings. The accumulation of the proline is correlated positively with the hot temperatures and accumulation of the proteins is significant at 2°C and 38°C. The quercitol is correlated with extreme temperatures (-2°C and 44°C). The roots and the young leaves (the 2nd flush) accumulated proline and quercitol. The accumulated quantities could be related to the level of tolerance to the thermal stress, contributing to the maintenance of cellular turgescence, creates by osmotic adjustment for these markers.Diplôme : Doctorat en sciences En ligne : ../theses/biologie/RAC6371.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=6341 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité RAC/6371 RAC/6371 Thèse Bibliothèque principale Thèses Disponible
Titre : Approche phytosociologique de la végétation dans le massif : forestier de Chettabah (Constantine) Type de document : texte imprimé Auteurs : Sara Lemouissi, Auteur ; Djamel Alatou, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 99 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Chettabah Echantillonnage Phytosociologie Dynamique Biodiversity Sampling Phytosociology Dynamic التنوع البیولوجي أخذ العینات النباتیة دینامیكیة Index. décimale : 570 Sciences de la vie. Biologie Résumé : The forest of Chettabah has the largest ecosystem of the Constantine region with an area of
2400 ha. Subjective sampling was conducted to analyze the vegetation and changes in species
composition of the massif.
The phytosociological analysis shows the presence of four plant communities belonging to
the class Quercetea ilicis (Pistaciolentisci-Quercetum rotundifoliae Dahmani 1997, Calicotomo
spinosae-Quercetum rotundifoliae Dahmani 1997, Cytiso salvifolii-Quercetum
rotundifoliae Dahmani 1997 et Clicotomo spinosae-Pinetum halepensis Brakchi 1998).
The vegetation dynamics is characterized by a regressive series with a matorralisation
progressing to therophytisation
Diplôme : Magistère En ligne : ../theses/biologie/LAM6647.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9799 Approche phytosociologique de la végétation dans le massif : forestier de Chettabah (Constantine) [texte imprimé] / Sara Lemouissi, Auteur ; Djamel Alatou, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2014 . - 99 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Chettabah Echantillonnage Phytosociologie Dynamique Biodiversity Sampling Phytosociology Dynamic التنوع البیولوجي أخذ العینات النباتیة دینامیكیة Index. décimale : 570 Sciences de la vie. Biologie Résumé : The forest of Chettabah has the largest ecosystem of the Constantine region with an area of
2400 ha. Subjective sampling was conducted to analyze the vegetation and changes in species
composition of the massif.
The phytosociological analysis shows the presence of four plant communities belonging to
the class Quercetea ilicis (Pistaciolentisci-Quercetum rotundifoliae Dahmani 1997, Calicotomo
spinosae-Quercetum rotundifoliae Dahmani 1997, Cytiso salvifolii-Quercetum
rotundifoliae Dahmani 1997 et Clicotomo spinosae-Pinetum halepensis Brakchi 1998).
The vegetation dynamics is characterized by a regressive series with a matorralisation
progressing to therophytisation
Diplôme : Magistère En ligne : ../theses/biologie/LAM6647.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9799 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité LEM/6647 LEM/6647 Thèse Bibliothèque principale Thèses Disponible
Titre : Biologie des chênes Algériens Type de document : texte imprimé Auteurs : Abla Medjmadj, Auteur ; Djamel Alatou, Directeur de thèse Editeur : constantine [Algérie] : Université Constantine 1 Année de publication : 2014 Importance : 161 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Biologie Chênes Croissance rythmique Biology Oaks rhythmic growth علم الأحياء البلوط النموالوتيري Index. décimale : 570 Sciences de la vie. Biologie Résumé :
Various representatives of the genus Quercus play a more or less important role in the formation of Algerian forests. The current status of these populations in Algeria, the regression of its range, its ecological importance and necessity in the current global context, to promote biodiversity conservation and sustainable development of ecosystems are all elements that encouraged us to study the biology of oaks in Algeria.
Growth and development of oak obey to rhythmicity characterized by repeated waves of "flush" growth which vary in length from 1 to 5 weeks, which is also reflected in a heteroblastia.
Modifying the expression of rhythmic growth (spatio-temporal components) is caused by several factors such as extremes temperature (low and high), the involvement of growth regulators (gibberellin, cytokinin), removing young leaves, continuous light and darkness.
Histological study of the oak buds shows that all units of the next leaf stage are preformed in the bud, continuous organogenesis (part of the leaf sets of the wave of growth n is formed during the resting phase of the wave n-1 and the other during the elongation phase of the wave n) and assimilates synthesized by the leaves of the wave of growth n, are used in the construction of the wave n + 1.
Diplôme : Magistère En ligne : ../theses/biologie/MED6629.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9753 Biologie des chênes Algériens [texte imprimé] / Abla Medjmadj, Auteur ; Djamel Alatou, Directeur de thèse . - constantine [Algérie] : Université Constantine 1, 2014 . - 161 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Biologie Chênes Croissance rythmique Biology Oaks rhythmic growth علم الأحياء البلوط النموالوتيري Index. décimale : 570 Sciences de la vie. Biologie Résumé :
Various representatives of the genus Quercus play a more or less important role in the formation of Algerian forests. The current status of these populations in Algeria, the regression of its range, its ecological importance and necessity in the current global context, to promote biodiversity conservation and sustainable development of ecosystems are all elements that encouraged us to study the biology of oaks in Algeria.
Growth and development of oak obey to rhythmicity characterized by repeated waves of "flush" growth which vary in length from 1 to 5 weeks, which is also reflected in a heteroblastia.
Modifying the expression of rhythmic growth (spatio-temporal components) is caused by several factors such as extremes temperature (low and high), the involvement of growth regulators (gibberellin, cytokinin), removing young leaves, continuous light and darkness.
Histological study of the oak buds shows that all units of the next leaf stage are preformed in the bud, continuous organogenesis (part of the leaf sets of the wave of growth n is formed during the resting phase of the wave n-1 and the other during the elongation phase of the wave n) and assimilates synthesized by the leaves of the wave of growth n, are used in the construction of the wave n + 1.
Diplôme : Magistère En ligne : ../theses/biologie/MED6629.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=9753 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité MED/6629 MED/6629 Thèse Bibliothèque principale Thèses Disponible Documents numériques
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texte intégreAdobe Acrobat PDFCartographie de la variabilité thermique des écosystèmes forestiers de l’Est algérien. / Ahmed Laala
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Titre : Cartographie de la variabilité thermique des écosystèmes forestiers de l’Est algérien. Type de document : texte imprimé Auteurs : Ahmed Laala, Auteur ; Djamel Alatou, Directeur de thèse Editeur : جامعة الإخوة منتوري قسنطينة Année de publication : 2016 Importance : 212 f. Format : 30 cm. Note générale : 2 copies imprimées disponibles
Langues : Français (fre) Catégories : Français - Anglais
BiologieTags : Ecologie végétale:Ecophysiologie et biotechnologie végétale Variabilité Température Forêt NDVI SIG MODIS Est algérien Cartographie Variability Temperature Forest GIS , Eastern Algeria Cartography التغيرات الحرارة الغابة مؤشر الغطاء النباتي الخضري نظام المعلومات الجغرافي القمر الصناعي MODIS شرق الجزائر رسم الخرائط Index. décimale : 570 Sciences de la vie. Biologie Résumé : Algerian forest patrimony is estimated at 4 million hectares, including forests, Scrub and brush. This forest is exposed to natural and anthropogenic hazards that cause severe degradation resulting mainly in continued regressive evolution and a ubstantial loss of wealth. Among the natural threats is the climate conditions and particularly the temperature of the environment in which forest ecosystems evolve. In addition to its action on life processes, on growth and on phenology of species, temperature can change also the biogeographic areas of ecosystems.
In this study we analyzed the temperature to characterize the thermal environment of
eastern Algeria and the effects of its variation on the dynamics and photosynthetic activity of forest ecosystems in this vast area. The used data is the temperatures for a period of 30 consecutive years (1982-2011) and spectral index (NDVI) which can detect the photosynthetic signal above the canopy.
Statistical analysis of long temperature series reveals that the warming observed
worldwide is already noticed in eastern Algeria. The majority of the wilayas exposed to this hazard, where the trend is more pronounced for the annual maximum temperature, may reach 3 °C/30years, an increase of 0.1C°/year. Thus, the estimate of thermal field for each pixel in eastern Algeria was realized by using Geostatistical methods based on multiple regression between temperature and the explanatory variables describing the relief. From these spatial data, the thermal limits have been defined for each forest species. Finally, the technical of GIS and satellite images allowed us to monitor the dynamics of forest vegetation, and to build maps that define the relationship between forest biomass and thermal parameters. These maps helped us to
identify 901087 hectares where trees were very sensitive to changes in the average temperature, with a percentage of 53.9% of the total area of the studied forest ecosystems. Thus, the minimum temperature affects photosynthesis of forest species in an area of 852406 ha with 50.8% of the total forest area. This cartographic expression is effective, firstly for forestry in the discrimination of forest plots where the thermal factor is the limiting factor of productivity and secondly for decision makers to define the forest management strategies of country.
Diplôme : Doctorat en sciences En ligne : ../theses/biologie/LAA6983.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10412 Cartographie de la variabilité thermique des écosystèmes forestiers de l’Est algérien. [texte imprimé] / Ahmed Laala, Auteur ; Djamel Alatou, Directeur de thèse . - جامعة الإخوة منتوري قسنطينة, 2016 . - 212 f. ; 30 cm.
2 copies imprimées disponibles
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Ecologie végétale:Ecophysiologie et biotechnologie végétale Variabilité Température Forêt NDVI SIG MODIS Est algérien Cartographie Variability Temperature Forest GIS , Eastern Algeria Cartography التغيرات الحرارة الغابة مؤشر الغطاء النباتي الخضري نظام المعلومات الجغرافي القمر الصناعي MODIS شرق الجزائر رسم الخرائط Index. décimale : 570 Sciences de la vie. Biologie Résumé : Algerian forest patrimony is estimated at 4 million hectares, including forests, Scrub and brush. This forest is exposed to natural and anthropogenic hazards that cause severe degradation resulting mainly in continued regressive evolution and a ubstantial loss of wealth. Among the natural threats is the climate conditions and particularly the temperature of the environment in which forest ecosystems evolve. In addition to its action on life processes, on growth and on phenology of species, temperature can change also the biogeographic areas of ecosystems.
In this study we analyzed the temperature to characterize the thermal environment of
eastern Algeria and the effects of its variation on the dynamics and photosynthetic activity of forest ecosystems in this vast area. The used data is the temperatures for a period of 30 consecutive years (1982-2011) and spectral index (NDVI) which can detect the photosynthetic signal above the canopy.
Statistical analysis of long temperature series reveals that the warming observed
worldwide is already noticed in eastern Algeria. The majority of the wilayas exposed to this hazard, where the trend is more pronounced for the annual maximum temperature, may reach 3 °C/30years, an increase of 0.1C°/year. Thus, the estimate of thermal field for each pixel in eastern Algeria was realized by using Geostatistical methods based on multiple regression between temperature and the explanatory variables describing the relief. From these spatial data, the thermal limits have been defined for each forest species. Finally, the technical of GIS and satellite images allowed us to monitor the dynamics of forest vegetation, and to build maps that define the relationship between forest biomass and thermal parameters. These maps helped us to
identify 901087 hectares where trees were very sensitive to changes in the average temperature, with a percentage of 53.9% of the total area of the studied forest ecosystems. Thus, the minimum temperature affects photosynthesis of forest species in an area of 852406 ha with 50.8% of the total forest area. This cartographic expression is effective, firstly for forestry in the discrimination of forest plots where the thermal factor is the limiting factor of productivity and secondly for decision makers to define the forest management strategies of country.
Diplôme : Doctorat en sciences En ligne : ../theses/biologie/LAA6983.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=10412 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité LAA/6983 LAA/6983 Thèse Bibliothèque principale Thèses Disponible
Titre : Les Collemboles(Hexapoda, Arthropoda) du Nord-Est algerien : taxonomie,biogéographie et écologie Type de document : texte imprimé Auteurs : Salah Hamra-Kroua, Auteur ; Djamel Alatou, Directeur de thèse Editeur : Constantine : Université Mentouri Constantine Année de publication : 2005 Importance : 226 f. Format : 30 cm. Note générale : Doctorat d'etat.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la bibliothèque centrale
01 CDLangues : Français (fre) Catégories : Français - Anglais
BiologieTags : Algérie Ecologie Taxonomie Inventaire Collemboles Friesea n.sp. Edough Biogéographie Collembola Inventory Taxonomy Algeria Biogeography Ecology Index. décimale : 570 Sciences de la vie. Biologie Résumé : Several hundreds of samples taken in seven localities of the Algerian NorthEast are analyzed. The taxonomic study on the level of the species reveals the presence of a total of 113 species of Collembola. The inventory of the country in Collembola is enriched by a contribution by 56 new species, of which 49 are announced here for the first time in North Africa. The majority of the species lately announced in Algeria are also new for North Africa, which shows that a East
Algerian fauna quite different from that of the surrounding countries, in particular of Morocco which was studied the most. Fauna met is composed of species belonging to the four orders of known Collembola, 15 families and 55 genera. The prevalence of the Poduromorpha order with 57 species and 26 genera constitutes a remarkable character of the fauna of Collembola. Inside this group, the family emerges from Neanuridae which is represented by 27 species belonging to 3 subfamilies. One of them, Frieseinae with 11 species of the same genera (Friesea) constitutes the other original character of the collembolan fauna. Among the seven prospected localities, it is mountainous massif of Edough that the essence of the total collected and identified species comes, that is to say 78 species. The most unexpected character of this fauna is the diversity of the Friesea genera (8 species) and Hypogastrura genera of the astonishing richness specific of
Neanuridae met in the massif of Edough: 19 species against only 10 in the remainder of the country. What makes it distinguish from all the Mediterranean forested mountains vaster and more intensely studied. Four new species are described: Deutonura n.sp.zana, Friesea n.sp.major, Friesea n.sp.algirica and Friesea laouina, of which is published, (Deharveng & Hamra-Kroua, 2004). Twenty two species are rare, are listed with comments on their taxonomic position, and makes it possible to expect new discoveries. Affinities of the settlement of Collembola are primarily with Mediterranean fauna. The fauna of Edough consists of some European elements and circumméditerranéen. The dynamics of the settlement of Collembola endogens is determined by the seasonal variation of the fundamental edaphic factors: temperature and moisture .Their seasonal, obvious impact surfaces some, feels even in the in-depth ground.Diplôme : Doctorat En ligne : ../theses/biologie/HAM4277.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=1436 Les Collemboles(Hexapoda, Arthropoda) du Nord-Est algerien : taxonomie,biogéographie et écologie [texte imprimé] / Salah Hamra-Kroua, Auteur ; Djamel Alatou, Directeur de thèse . - Constantine : Université Mentouri Constantine, 2005 . - 226 f. ; 30 cm.
Doctorat d'etat.
01 Disponible à la salle de recherche 02 Disponibles au magazin de la bibliothèque centrale
01 CD
Langues : Français (fre)
Catégories : Français - Anglais
BiologieTags : Algérie Ecologie Taxonomie Inventaire Collemboles Friesea n.sp. Edough Biogéographie Collembola Inventory Taxonomy Algeria Biogeography Ecology Index. décimale : 570 Sciences de la vie. Biologie Résumé : Several hundreds of samples taken in seven localities of the Algerian NorthEast are analyzed. The taxonomic study on the level of the species reveals the presence of a total of 113 species of Collembola. The inventory of the country in Collembola is enriched by a contribution by 56 new species, of which 49 are announced here for the first time in North Africa. The majority of the species lately announced in Algeria are also new for North Africa, which shows that a East
Algerian fauna quite different from that of the surrounding countries, in particular of Morocco which was studied the most. Fauna met is composed of species belonging to the four orders of known Collembola, 15 families and 55 genera. The prevalence of the Poduromorpha order with 57 species and 26 genera constitutes a remarkable character of the fauna of Collembola. Inside this group, the family emerges from Neanuridae which is represented by 27 species belonging to 3 subfamilies. One of them, Frieseinae with 11 species of the same genera (Friesea) constitutes the other original character of the collembolan fauna. Among the seven prospected localities, it is mountainous massif of Edough that the essence of the total collected and identified species comes, that is to say 78 species. The most unexpected character of this fauna is the diversity of the Friesea genera (8 species) and Hypogastrura genera of the astonishing richness specific of
Neanuridae met in the massif of Edough: 19 species against only 10 in the remainder of the country. What makes it distinguish from all the Mediterranean forested mountains vaster and more intensely studied. Four new species are described: Deutonura n.sp.zana, Friesea n.sp.major, Friesea n.sp.algirica and Friesea laouina, of which is published, (Deharveng & Hamra-Kroua, 2004). Twenty two species are rare, are listed with comments on their taxonomic position, and makes it possible to expect new discoveries. Affinities of the settlement of Collembola are primarily with Mediterranean fauna. The fauna of Edough consists of some European elements and circumméditerranéen. The dynamics of the settlement of Collembola endogens is determined by the seasonal variation of the fundamental edaphic factors: temperature and moisture .Their seasonal, obvious impact surfaces some, feels even in the in-depth ground.Diplôme : Doctorat En ligne : ../theses/biologie/HAM4277.pdf Format de la ressource électronique : Permalink : index.php?lvl=notice_display&id=1436 Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité HAM/4277 HAM/4277 Thèse Bibliothèque principale Thèses Disponible PermalinkPermalinkEcologie de l’ailante glanduleux (Ailanthus altissima) dans la région de Constantine / Amel Soltani Amri
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PermalinkPermalinkPermalinkLes perturbations climatiques et leurs incidences possibles sur l'ecosystème forestier de la Mahouna Guelma / Amina Beldjazia
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PermalinkTypologie et adaptation des espaces verts de l'agglomération d'El Khroub (Constantine). / Nour El Houda Benkouachi
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PermalinkValorisation du Pin pignon (Pinus pinea L.) dans la région de Djebel Ouahch - Constantine / Chaima Touaba
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