Yassine Farhi - Academia.edu (original) (raw)
Papers by Yassine Farhi
Composition De L’Avifaune Des Steppes Presahariennes Des Ziban (Biskra, Algerie)
Le suivie de l’avifaune de quelques formations vegetales steppiques de la region des Ziban a perm... more Le suivie de l’avifaune de quelques formations vegetales steppiques de la region des Ziban a permis de recenser 42 especes, dont les Turdidae representees avec 10 especes, constituent la famille la plus importante. La richesse totale varie entre un maximum de 24 especes dans les steppes halophiles et un minimum de 14 especes dans les steppes a Alfa. L’abondance des differentes especes varie d’une formation vegetale a une autre. Gallerida cristata est l’espece la plus abondante dans toutes les formations vegetales sauf au niveau des steppes a Alfa ou c’est Gallerida teklae qui est la plus abondante.
Première données sur le comportement trophique de la chouette effraie (Tyto alba Scopoli, 1769) dans la région de Biskra (Sahara septentrionale algérien)
First breeding data of the barn swallow ( Hirundo rustica ) in the northern Algerian Sahara (Biskra region)
African Journal of Ecology
Technium Social Sciences Journal
These last years, the Algerian steppe has known a strong degradation caused in particular by the ... more These last years, the Algerian steppe has known a strong degradation caused in particular by the scarcity of the annual rainfall. It spreads in certain cases to successive years generated by a persistent drought. A series of indices were applied to rainfall records recorded for 30 years (1985-2015) in the treated stations to identify the severity of the drought in the steppe regions. The present work proposes to study and compare the performance of some drought indices to identify a permanent monitoring system in the steppe. The indices studied are Pluviometric Deficit Index (PDI), StandaPDIzed Precipitation Index (SPI), and the Ratio compared to the Normal (RN). We can deduce Climate variability is manifested by regressive spatio-temporal dynamics, thus, drought is recurrent phenomenon in the Algerian steppe
Première données sur le comportement trophique de la chouette effraie (Tyto alba Scopoli, 1769) dans la région de Biskra (Sahara septentrionale algérien)
Journal of entomology and zoology studies, 2015
The expansion of the palm groves of the southeasterly oases of the Ziban (Biskra, Algeria), from ... more The expansion of the palm groves of the southeasterly oases of the Ziban (Biskra, Algeria), from 2 to 4 million palms of it spaces in the last decade seems to have permitted a fast colonization by the Colombidae. During five and half months in 2008, from the end of March until the end of August, we led the observations and a regular follow-up in order to surround the main parameters of the nest building and reproduction among the doves Streptopelia decaocto and S. turtur. We followed the activity of two samples of reference, composed of N1=21 nests of S decaocto and N2=30 nests of S. turtur. The nests were constructed by two varieties of date Palm (Phoenix dactylifera): Mech degla and Deglet nour. The respective mean heights of the nests for S. decaocto were HST1 = 6, 11± 1,006 m (N=14) and HST2 = 4, 57± 1,12m (N=7). While, the mean heights of S. turtur were HSB1 = 5, 28± 1,15m (N=16) and HSB2 = 4, 04 ± 1,29m, (N=14). The global breeding success for the two species of doves was homo...
Analyse des journées de forte chaleur à l’Ouest Algérien
Typology and Structure of the Ziban's Avifauna (Biskra, Algeria)
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01 accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Composition De L’Avifaune Des Steppes Presahariennes Des Ziban (Biskra, Algerie)
Le suivie de l’avifaune de quelques formations vegetales steppiques de la region des Ziban a perm... more Le suivie de l’avifaune de quelques formations vegetales steppiques de la region des Ziban a permis de recenser 42 especes, dont les Turdidae representees avec 10 especes, constituent la famille la plus importante. La richesse totale varie entre un maximum de 24 especes dans les steppes halophiles et un minimum de 14 especes dans les steppes a Alfa. L’abondance des differentes especes varie d’une formation vegetale a une autre. Gallerida cristata est l’espece la plus abondante dans toutes les formations vegetales sauf au niveau des steppes a Alfa ou c’est Gallerida teklae qui est la plus abondante.
Typologie et Structure De L’Avifaune Des Ziban (Biskra, Algerie)
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01 accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Première données sur le comportement trophique de la chouette effraie (Tyto alba Scopoli, 1769) dans la région de Biskra (Sahara septentrionale algérien
Livestock grazing‐induced large‐scale biotic homogenization in arid Mediterranean steppe rangelands
Land Degradation & Development
Despite many studies explored the effect of livestock grazing on plant communities, the response ... more Despite many studies explored the effect of livestock grazing on plant communities, the response of species composition and diversity to livestock grazing in arid rangelands remain ambiguous. This study examined the effects of livestock grazing on plant communities in arid steppe rangelands of North Africa. Plant diversity of annual species, perennial species and all species combined was measured and compared between grazed and grazing-excluded areas. We also examined the relative importance of species turnover and community nestedness. Moreover, the effects of livestock grazing on beta diversity at local among transects and landscape among sites scales were examined using the multiplicative diversity partitioning. Results revealed that livestock grazing significantly decreased the alpha diversity of all species combined and the diversity of annual plants. Livestock grazing induced a shift in plant community composition where most of species composition variation (~74%) was due to infrequent species replacement ‘turnover’ between the two management types rather than nestedness (~26%). Results revealed also that among transects, beta diversity was higher in grazed steppes than in grazing-excluded steppes. Whereas, among sites, beta diversity was lower in grazed steppes compared to grazing-excluded steppes. These findings suggest that livestock grazing in arid steppe rangelands increases the variation in plant species composition at a local spatial scale and engenders vegetation homogeneity at landscape spatial scale. Therefore, the implementation of appropriate management practices such as short-term grazing exclusion is mandatory to prevent these ecosystems from large scale biotic homogenization.
Avian Research
Background Ecological functions and processes in urban ecosystems are governed by various human a... more Background Ecological functions and processes in urban ecosystems are governed by various human activities. City-adapted and city-exploiting animal species are expected to present certain specific behavioral and physiological traits in comparison to city-avoiders or conspecific individual frequenting less urbanized or rural environments. A trait of high importance, the plumage color polymorphism has been selected as the main study model and was correlated with different morphological and physiological parameters to highlight its importance in determining the possible health status of urban Feral Pigeons (Columba livia) in North African urban habitats. Methods Different body morphometrics, hematological and hemoparasitic parameters were quantified on free-living Feral Pigeons in urban environments of northern Algeria. Moreover, plumage melanin-based coloration (MBC) was measured and the data collected at the individual scale was correlated with the previous parameters using linear an...
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Diet composition and prey choice by the House Martin Delichon urbica (Aves: Hirundinidae) during the breeding period in Kabylia, Algeria
Italian Journal of Zoology, 2013
ABSTRACT The diet of a colony of the House Martin Delichon urbica (Linnaeus, 1758), a breeding mi... more ABSTRACT The diet of a colony of the House Martin Delichon urbica (Linnaeus, 1758), a breeding migratory species in Algeria, was studied from March to July 2004 in the city of Tizi Ouzou, Kabylia region, east of Algiers. It was mainly based on insects, which represented 99.6% of the 3746 food items recovered from 50 faeces. Most preys were winged insects. 178 taxa were identified at different levels, from order to species. Arachnida and Gastropoda were only occasionally captured and hence slightly represented. Hymenoptera dominated (77.6% of individual insects, 97.04% being ants), followed by Coleoptera (15.65%) and Heteroptera (4.99%). Other orders were few in terms of prey. They seemed to be captured only when the House Martin got an opportunity to do so. This study showed monthly variations among the species consumed, indicating a high level of plasticity in the diet. These variations correspond to the local availability and phenology of prey. Most preys are mainly small-sized. The preys of size estimated between 2 and 5 mm found in the fecal bags reflect that of Formicidae consumed by Delichon urbica such as Tetramorium biskrensis, Monomorium salomonis, Tapinoma nigerimum and Plagiolepis barbara. In Kabylia, as elsewhere, the House Martin appears to be an opportunist feeder which, when preys are abundant, selects those that best fit their nutritional requirements, but which can use others and becomes more eclectic when food becomes scarce.
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Diet composition and prey choice by the House Martin Delichon urbica (Aves: Hirundinidae) during the breeding period in Kabylia, Algeria
Italian Journal of Zoology, 2013
ABSTRACT The diet of a colony of the House Martin Delichon urbica (Linnaeus, 1758), a breeding mi... more ABSTRACT The diet of a colony of the House Martin Delichon urbica (Linnaeus, 1758), a breeding migratory species in Algeria, was studied from March to July 2004 in the city of Tizi Ouzou, Kabylia region, east of Algiers. It was mainly based on insects, which represented 99.6% of the 3746 food items recovered from 50 faeces. Most preys were winged insects. 178 taxa were identified at different levels, from order to species. Arachnida and Gastropoda were only occasionally captured and hence slightly represented. Hymenoptera dominated (77.6% of individual insects, 97.04% being ants), followed by Coleoptera (15.65%) and Heteroptera (4.99%). Other orders were few in terms of prey. They seemed to be captured only when the House Martin got an opportunity to do so. This study showed monthly variations among the species consumed, indicating a high level of plasticity in the diet. These variations correspond to the local availability and phenology of prey. Most preys are mainly small-sized. The preys of size estimated between 2 and 5 mm found in the fecal bags reflect that of Formicidae consumed by Delichon urbica such as Tetramorium biskrensis, Monomorium salomonis, Tapinoma nigerimum and Plagiolepis barbara. In Kabylia, as elsewhere, the House Martin appears to be an opportunist feeder which, when preys are abundant, selects those that best fit their nutritional requirements, but which can use others and becomes more eclectic when food becomes scarce.
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
The increasing flash floods phenomenon in arid and semi-arid regions of Algeria has led to a sear... more The increasing flash floods phenomenon in arid and semi-arid regions of Algeria has led to a search for practical and feasible solutions. The use of mapping to delineate floodplain areas has become one of the solutions to mitigate this phenomenon. El Bayadh city has experienced a catastrophic flood on 1 October 2011 causing significant human and material damage. The present study aims to produce a flood hazard map of El Bayadh city based on rainfall amounts. Four precipitation values were proposed 40, 60, 80, and 100 mm, through which four flooded areas were obtained. This flood hazard map proves its effectiveness when used in conjunction with the weather warnings issued by the National Office of Meteorology. In this work, a hydrological study was done, and ArcGIS and HEC-RAS software were used.
Composition De L’Avifaune Des Steppes Presahariennes Des Ziban (Biskra, Algerie)
Le suivie de l’avifaune de quelques formations vegetales steppiques de la region des Ziban a perm... more Le suivie de l’avifaune de quelques formations vegetales steppiques de la region des Ziban a permis de recenser 42 especes, dont les Turdidae representees avec 10 especes, constituent la famille la plus importante. La richesse totale varie entre un maximum de 24 especes dans les steppes halophiles et un minimum de 14 especes dans les steppes a Alfa. L’abondance des differentes especes varie d’une formation vegetale a une autre. Gallerida cristata est l’espece la plus abondante dans toutes les formations vegetales sauf au niveau des steppes a Alfa ou c’est Gallerida teklae qui est la plus abondante.
Première données sur le comportement trophique de la chouette effraie (Tyto alba Scopoli, 1769) dans la région de Biskra (Sahara septentrionale algérien)
First breeding data of the barn swallow ( Hirundo rustica ) in the northern Algerian Sahara (Biskra region)
African Journal of Ecology
Technium Social Sciences Journal
These last years, the Algerian steppe has known a strong degradation caused in particular by the ... more These last years, the Algerian steppe has known a strong degradation caused in particular by the scarcity of the annual rainfall. It spreads in certain cases to successive years generated by a persistent drought. A series of indices were applied to rainfall records recorded for 30 years (1985-2015) in the treated stations to identify the severity of the drought in the steppe regions. The present work proposes to study and compare the performance of some drought indices to identify a permanent monitoring system in the steppe. The indices studied are Pluviometric Deficit Index (PDI), StandaPDIzed Precipitation Index (SPI), and the Ratio compared to the Normal (RN). We can deduce Climate variability is manifested by regressive spatio-temporal dynamics, thus, drought is recurrent phenomenon in the Algerian steppe
Première données sur le comportement trophique de la chouette effraie (Tyto alba Scopoli, 1769) dans la région de Biskra (Sahara septentrionale algérien)
Journal of entomology and zoology studies, 2015
The expansion of the palm groves of the southeasterly oases of the Ziban (Biskra, Algeria), from ... more The expansion of the palm groves of the southeasterly oases of the Ziban (Biskra, Algeria), from 2 to 4 million palms of it spaces in the last decade seems to have permitted a fast colonization by the Colombidae. During five and half months in 2008, from the end of March until the end of August, we led the observations and a regular follow-up in order to surround the main parameters of the nest building and reproduction among the doves Streptopelia decaocto and S. turtur. We followed the activity of two samples of reference, composed of N1=21 nests of S decaocto and N2=30 nests of S. turtur. The nests were constructed by two varieties of date Palm (Phoenix dactylifera): Mech degla and Deglet nour. The respective mean heights of the nests for S. decaocto were HST1 = 6, 11± 1,006 m (N=14) and HST2 = 4, 57± 1,12m (N=7). While, the mean heights of S. turtur were HSB1 = 5, 28± 1,15m (N=16) and HSB2 = 4, 04 ± 1,29m, (N=14). The global breeding success for the two species of doves was homo...
Analyse des journées de forte chaleur à l’Ouest Algérien
Typology and Structure of the Ziban's Avifauna (Biskra, Algeria)
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01 accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Composition De L’Avifaune Des Steppes Presahariennes Des Ziban (Biskra, Algerie)
Le suivie de l’avifaune de quelques formations vegetales steppiques de la region des Ziban a perm... more Le suivie de l’avifaune de quelques formations vegetales steppiques de la region des Ziban a permis de recenser 42 especes, dont les Turdidae representees avec 10 especes, constituent la famille la plus importante. La richesse totale varie entre un maximum de 24 especes dans les steppes halophiles et un minimum de 14 especes dans les steppes a Alfa. L’abondance des differentes especes varie d’une formation vegetale a une autre. Gallerida cristata est l’espece la plus abondante dans toutes les formations vegetales sauf au niveau des steppes a Alfa ou c’est Gallerida teklae qui est la plus abondante.
Typologie et Structure De L’Avifaune Des Ziban (Biskra, Algerie)
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01 accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Première données sur le comportement trophique de la chouette effraie (Tyto alba Scopoli, 1769) dans la région de Biskra (Sahara septentrionale algérien
Livestock grazing‐induced large‐scale biotic homogenization in arid Mediterranean steppe rangelands
Land Degradation & Development
Despite many studies explored the effect of livestock grazing on plant communities, the response ... more Despite many studies explored the effect of livestock grazing on plant communities, the response of species composition and diversity to livestock grazing in arid rangelands remain ambiguous. This study examined the effects of livestock grazing on plant communities in arid steppe rangelands of North Africa. Plant diversity of annual species, perennial species and all species combined was measured and compared between grazed and grazing-excluded areas. We also examined the relative importance of species turnover and community nestedness. Moreover, the effects of livestock grazing on beta diversity at local among transects and landscape among sites scales were examined using the multiplicative diversity partitioning. Results revealed that livestock grazing significantly decreased the alpha diversity of all species combined and the diversity of annual plants. Livestock grazing induced a shift in plant community composition where most of species composition variation (~74%) was due to infrequent species replacement ‘turnover’ between the two management types rather than nestedness (~26%). Results revealed also that among transects, beta diversity was higher in grazed steppes than in grazing-excluded steppes. Whereas, among sites, beta diversity was lower in grazed steppes compared to grazing-excluded steppes. These findings suggest that livestock grazing in arid steppe rangelands increases the variation in plant species composition at a local spatial scale and engenders vegetation homogeneity at landscape spatial scale. Therefore, the implementation of appropriate management practices such as short-term grazing exclusion is mandatory to prevent these ecosystems from large scale biotic homogenization.
Avian Research
Background Ecological functions and processes in urban ecosystems are governed by various human a... more Background Ecological functions and processes in urban ecosystems are governed by various human activities. City-adapted and city-exploiting animal species are expected to present certain specific behavioral and physiological traits in comparison to city-avoiders or conspecific individual frequenting less urbanized or rural environments. A trait of high importance, the plumage color polymorphism has been selected as the main study model and was correlated with different morphological and physiological parameters to highlight its importance in determining the possible health status of urban Feral Pigeons (Columba livia) in North African urban habitats. Methods Different body morphometrics, hematological and hemoparasitic parameters were quantified on free-living Feral Pigeons in urban environments of northern Algeria. Moreover, plumage melanin-based coloration (MBC) was measured and the data collected at the individual scale was correlated with the previous parameters using linear an...
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Diet composition and prey choice by the House Martin Delichon urbica (Aves: Hirundinidae) during the breeding period in Kabylia, Algeria
Italian Journal of Zoology, 2013
ABSTRACT The diet of a colony of the House Martin Delichon urbica (Linnaeus, 1758), a breeding mi... more ABSTRACT The diet of a colony of the House Martin Delichon urbica (Linnaeus, 1758), a breeding migratory species in Algeria, was studied from March to July 2004 in the city of Tizi Ouzou, Kabylia region, east of Algiers. It was mainly based on insects, which represented 99.6% of the 3746 food items recovered from 50 faeces. Most preys were winged insects. 178 taxa were identified at different levels, from order to species. Arachnida and Gastropoda were only occasionally captured and hence slightly represented. Hymenoptera dominated (77.6% of individual insects, 97.04% being ants), followed by Coleoptera (15.65%) and Heteroptera (4.99%). Other orders were few in terms of prey. They seemed to be captured only when the House Martin got an opportunity to do so. This study showed monthly variations among the species consumed, indicating a high level of plasticity in the diet. These variations correspond to the local availability and phenology of prey. Most preys are mainly small-sized. The preys of size estimated between 2 and 5 mm found in the fecal bags reflect that of Formicidae consumed by Delichon urbica such as Tetramorium biskrensis, Monomorium salomonis, Tapinoma nigerimum and Plagiolepis barbara. In Kabylia, as elsewhere, the House Martin appears to be an opportunist feeder which, when preys are abundant, selects those that best fit their nutritional requirements, but which can use others and becomes more eclectic when food becomes scarce.
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
Diet composition and prey choice by the House Martin Delichon urbica (Aves: Hirundinidae) during the breeding period in Kabylia, Algeria
Italian Journal of Zoology, 2013
ABSTRACT The diet of a colony of the House Martin Delichon urbica (Linnaeus, 1758), a breeding mi... more ABSTRACT The diet of a colony of the House Martin Delichon urbica (Linnaeus, 1758), a breeding migratory species in Algeria, was studied from March to July 2004 in the city of Tizi Ouzou, Kabylia region, east of Algiers. It was mainly based on insects, which represented 99.6% of the 3746 food items recovered from 50 faeces. Most preys were winged insects. 178 taxa were identified at different levels, from order to species. Arachnida and Gastropoda were only occasionally captured and hence slightly represented. Hymenoptera dominated (77.6% of individual insects, 97.04% being ants), followed by Coleoptera (15.65%) and Heteroptera (4.99%). Other orders were few in terms of prey. They seemed to be captured only when the House Martin got an opportunity to do so. This study showed monthly variations among the species consumed, indicating a high level of plasticity in the diet. These variations correspond to the local availability and phenology of prey. Most preys are mainly small-sized. The preys of size estimated between 2 and 5 mm found in the fecal bags reflect that of Formicidae consumed by Delichon urbica such as Tetramorium biskrensis, Monomorium salomonis, Tapinoma nigerimum and Plagiolepis barbara. In Kabylia, as elsewhere, the House Martin appears to be an opportunist feeder which, when preys are abundant, selects those that best fit their nutritional requirements, but which can use others and becomes more eclectic when food becomes scarce.
Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inven... more Monitoring of Ziban’s Avifauna during 05 years (January 2006 to September 2010) has allowed inventorying of 136 species divided into 18 orders and 44 families. Passerines are the most diverse with 14 families represented by 63 species. The families most represented are Turdidae and warblers, formed respectively by 18 and 13 species. Phenological point of view the Ziban avifauna with 47 resident breeding species, 56 visitors passing, 19 watering visitor, 13 migratory breeding species and 01accidentally breeding species. Biogeographic status is dominated by Palaearctic’s species (42 species), followed by Ethiopian species including 17 species. For cons, the strictly Mediterranean avifauna is represented by only 07 species. The transition area between the Mediterranean and the Saharan region is confirmed by the presence of 11 desert species on 24 species recorded in Algeria.
The increasing flash floods phenomenon in arid and semi-arid regions of Algeria has led to a sear... more The increasing flash floods phenomenon in arid and semi-arid regions of Algeria has led to a search for practical and feasible solutions. The use of mapping to delineate floodplain areas has become one of the solutions to mitigate this phenomenon. El Bayadh city has experienced a catastrophic flood on 1 October 2011 causing significant human and material damage. The present study aims to produce a flood hazard map of El Bayadh city based on rainfall amounts. Four precipitation values were proposed 40, 60, 80, and 100 mm, through which four flooded areas were obtained. This flood hazard map proves its effectiveness when used in conjunction with the weather warnings issued by the National Office of Meteorology. In this work, a hydrological study was done, and ArcGIS and HEC-RAS software were used.