ABDELKRIM Arar
عبد الكريم عرعار
abdelkrim.arar @univ-msila.dz
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- MI - Joint Basci Teaching Department
- Faculty of Mathematics and Informatics
- Grade PHd
About Me
Location
Msila, Msila
Msila, ALGERIA
- 2020-02-05 00:00:00
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ABDELKRIM Arar birthday
- 2022
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2022
Caractérisation de l’évolution des ressources naturelles au Nord-EstAlgérien par une approche géomatique
Caractérisation de l’évolution des ressources naturelles au Nord-EstAlgérien par une approche géomatique
Citation
Rabah BOUNAR , Abdelkrim ARAR , FATEH Mimeche , Amira DAHMANI, ,(2022), Caractérisation de l’évolution des ressources naturelles au Nord-EstAlgérien par une approche géomatique,CONFERENCE NATIONALE PROTECTION DES PLANTES ET PRESERVATION DES MILIEUX NATURELS STEPPIQUES,Université de M'Sila
- 2021
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2021
Atlas cedar in Djurdjura National Park and Biosphere Reserve – current distribution and predicted changes in the range
Atlas cedar in Djurdjura National Park and Biosphere Reserve – current distribution and predicted changes in the range
Citation
Yassine NOUIDJEM , Abdelkrim ARAR , admin admin , , (2021), Atlas cedar in Djurdjura National Park and Biosphere Reserve – current distribution and predicted changes in the range, ROLA I FUNKCJONOWANIE PARKÓW KRAJOBRAZOWYCH W REZERWATACH BIOSFERY, Vol:1, Issue:1, pages:445-450, the Nicolaus Copernicus University in Toruń
- 2020
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2020
Les cédraies des aures face aux forçages environnementaux
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Citation
Abdelkrim ARAR , Yassine NOUIDJEM , Rabah BOUNAR , yassine kouba, Sliman tabet, Haroune chenchouni, ,(2020), Les cédraies des aures face aux forçages environnementaux,ICBIO,Mila
- 2020
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2020
Changements climatiques et biodiversité en Algerie
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Citation
Abdelkrim ARAR , Yassine NOUIDJEM , Rabah BOUNAR , haroune chechouni, ,(2020), Changements climatiques et biodiversité en Algerie,Bioactif molecules,Oum el bouaghi
- 2020
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2020
Potential Future Changes of the Geographic Range Size of Juniperus phoenicea in Algeria based on Present and Future Climate Change Projections
MaxEnt (Maximum Entropy), a Species Distribution Modelling (SDM) method, was applied in the current study in order to assess present and future spatial distribution of the Phoenician juniper (Juniperus phoenicea). Potential future changes in the geographic range size of J. phoenicea in Algeria was determined for the two horizons 2050 and 2070 based on CCSM4 model of the IPCC. Three types of data were used in SDM namely: 21 edaphic factors, 10 topographic parameters, and 19 climatic factors. The AUC value (Area Under Curve) scored 0.966, which showed the high performance of the MaxEnt model. The most contributing variables were: total soil carbon (22.1%), Bio14: driest month precipitation (19.2%), slope (11.1%), Bio15: seasonality of precipitation (coefficient of variation) (10.3), total soil nitrogen (7%), soil available water capacity during summer (6.3%). The presence probability map obtained shows a narrowing of the favorable area of the species by about 52.5% by the year 2070. Such a result asserts the vulnerable state of this species toward the climate change, which results in altitudinal, longitudinal and latitudinal species distribution range shift as a response reflecting the becoming of unfavorable changes of the Phoenician juniper habitats. Based on these results, it is necessary to adopt necessary planning measures for the protection and conservation of the species regarding its vulnerability to climate change.
Citation
Yassine NOUIDJEM , Rabah BOUNAR , Abdelkrim ARAR , kouba yacine, , (2020), Potential Future Changes of the Geographic Range Size of Juniperus phoenicea in Algeria based on Present and Future Climate Change Projections, Contemporary Problems of Ecology, Vol:13, Issue:4, pages:429-441, Pleiades Publishing, Ltd.
- 2019
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2019
Projected Small-Scale Range Reductions of Cedrus atlantica Forests Due to Climate Change at the Belezma National Park (Algeria)
The aim of this study was to highlight the impact of climate change on the spatial distribution of Cedrus atlantica forests in the Belezma National Park (BNP) in Algeria. Maximum entropy (MaxEnt) species distribution modeling approach combined with 19 climatic, 15 soil-related and 15 topographical factors were implemented here for the spatial distribution of Cedrus atlantica. The future predictions of both horizons 2050 and 2070 (CCSM4 model) were carried out to understand the future suitable range of the species. Results showed that the model MaxEnt was efficient and revealed significantly higher measurement of the AUC value (Area Under Curve) compared to the random prediction. AUC was 0.986 for training and 0.980 for the test data. The response curves of species occurrence vs. environmental variables showed that climatic variables have the most significant contributions compared to edaphic and topographic factors. A very high decrease in suitable area of C. atlantica was forecast on the basis of our predictions for 2070. This indicates that the species has a little chance to survive under the conditions of the future climate change scenarios. Our findings incite us to call for urgent actions in order to reduce the vulnerability of this species’ habitats in front of climate change
Citation
Abdelkrim ARAR , Yassine NOUIDJEM , Rabah BOUNAR , Slimane tabet, haroun chechouni, , (2019), Projected Small-Scale Range Reductions of Cedrus atlantica Forests Due to Climate Change at the Belezma National Park (Algeria), Arabian Journal of Geosciences, Vol:15, Issue:15, pages:15-19, Springer Nature Switzerland AG
- 2019
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2019
Bird Fauna of Eastern Great Erg of Algerian Sahara: Status, Protection and Conservation.
The Algerian Sahara covers the majority part of the country contains a various habitat types and landscape patterns. This variety offers a suitable biotope for biodiversity both in terms of fauna and flora. Many bird species are thought threatened by hunting, habitat destruction, pollution and urbanization in these regions. Bird fauna is probably the most well studied group in Algeria. Over the past 20 years, the spatial and temporal compositions of birds communities in different habitats in arid and Saharan areas mainly the Eastern Great Erg of Algeria, which considered important hotspot for many species. These efforts yielded a great amount of data on distribution patterns of each species. A group of Researchers, academics, students and enthusiasts were gathered in April, 2013 to create “The Algerian National Association of Ornithology (ANAO)” that aims essentially to conserve and preserve the most threatened biodiversity. We will present our association and its objectives for biodiversity conservation, particularly in the Sahara, also to look for collaboration opportunities to develop research projects on Algerian Sahara wildlife. Keywords: Great Erg, Sahara, conservation, biodiversity, ANAO
Citation
Yassine NOUIDJEM , Rabah BOUNAR , Abdelkrim ARAR , ETTAYIB Bensaci , merouani Sakina, ,(2019), Bird Fauna of Eastern Great Erg of Algerian Sahara: Status, Protection and Conservation.,L'apport des biotechnologies sur la protection de l'environnement,M'Sila
- 2019
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2019
Simulation de l'effet des changement climatiques sur la dynamique des forets du cédre de l'atlas en Algerie
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Citation
Abdelkrim ARAR , Yassine NOUIDJEM , Rabah BOUNAR , ,(2019), Simulation de l'effet des changement climatiques sur la dynamique des forets du cédre de l'atlas en Algerie,L'apport des biotechnologies sur la protection de l'environnement,M'Sila
- 2019
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2019
l'ampleur des changements climatiques sur les steppes Algeriens cas de Msila
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Citation
Abdelkrim ARAR , Yassine NOUIDJEM , Rabah BOUNAR , Sliman tabet, Haroun chenchouni, ,(2019), l'ampleur des changements climatiques sur les steppes Algeriens cas de Msila,Etat de la biodiversité dans les parcours steppique,Tebessa